Articles | Volume 18, issue 22
https://doi.org/10.5194/acp-18-16747-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-18-16747-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Nov 2018
Research article |
| 27 Nov 2018
| 27 Nov 2018
Aerosol water parameterization: long-term evaluation and importance for climate studies
Swen Metzger
CORRESPONDING AUTHOR
Energy, Environment and Water Research Center, The Cyprus Institute, Nicosia, Cyprus
Air Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
now at: ResearchConcepts io GmbH, Freiburg im Breisgau, Germany
Mohamed Abdelkader
Energy, Environment and Water Research Center, The Cyprus Institute, Nicosia, Cyprus
Air Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
now at: King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
Benedikt Steil
Air Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
Klaus Klingmüller
Air Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
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Samuel Rémy, Swen Metzger, Vincent Huijnen, Jason E. Williams, and Johannes Flemming
EGUsphere, https://doi.org/10.5194/egusphere-2023-3072, https://doi.org/10.5194/egusphere-2023-3072, 2024
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In this paper we describe the development of the future operational cycle of the IFS-COMPO system, used for operational forecasts of atmospheric composition in the CAMS project, and focus on the implementation of the thermodynamical model EQSAM4Clim version 12. The implementation of EQSAM4Clim significantly improves the simulated secondary inorganic aerosol surface concentration. The new aerosol and precipitation acidity diagnostics showed good agreement against observational datasets.
Swen Metzger, Samuel Rémy, Jason E. Williams, Vincent Huijnen, and Johannes Flemming
EGUsphere, https://doi.org/10.5194/egusphere-2023-2930, https://doi.org/10.5194/egusphere-2023-2930, 2023
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EQSAM4Clim has recently been revised to provide an accurate and efficient method for calculating the acidity of atmospheric particles. It is based on an analytical concept that is sufficiently fast and free of numerical noise, which makes it attractive for air quality forecasting. Version 12 allows the calculation of aerosol composition based on the gas-liquid-solid and the reduced gas-liquid partitioning with the associated water uptake for both cases, including the acidity of the aerosols.
Klaus Klingmüller, Swen Metzger, Mohamed Abdelkader, Vlassis A. Karydis, Georgiy L. Stenchikov, Andrea Pozzer, and Jos Lelieveld
Geosci. Model Dev., 11, 989–1008, https://doi.org/10.5194/gmd-11-989-2018, https://doi.org/10.5194/gmd-11-989-2018, 2018
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More than 1 billion tons of mineral dust particles are raised into the atmosphere every year, which has a significant impact on climate, society and ecosystems. The location, time and amount of dust emissions depend on surface and wind conditions. In the atmospheric chemistry–climate model EMAC, we have updated the relevant surface data and equations. Our validation shows that the updates substantially improve the agreement of model results and observations.
Mohamed Abdelkader, Swen Metzger, Benedikt Steil, Klaus Klingmüller, Holger Tost, Andrea Pozzer, Georgiy Stenchikov, Leonard Barrie, and Jos Lelieveld
Atmos. Chem. Phys., 17, 3799–3821, https://doi.org/10.5194/acp-17-3799-2017, https://doi.org/10.5194/acp-17-3799-2017, 2017
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We present a modeling study on the impacts of the key processes (dust emission flux, convection and dust aging parameterizations) that control the transatlantic dust transport using an advanced version of the EMAC atmospheric chemistry general circulation model. We define the
direct effect of dust agingas an increase in the AOD as a result of hygroscopic growth. We define the
indirect effectas a reduction in the dust AOD due to the higher removal of the aged dust particles.
Swen Metzger, Benedikt Steil, Mohamed Abdelkader, Klaus Klingmüller, Li Xu, Joyce E. Penner, Christos Fountoukis, Athanasios Nenes, and Jos Lelieveld
Atmos. Chem. Phys., 16, 7213–7237, https://doi.org/10.5194/acp-16-7213-2016, https://doi.org/10.5194/acp-16-7213-2016, 2016
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We introduce an unique single parameter framework to efficiently parameterize the aerosol water uptake for mixtures of semi-volatile and non-volatile compounds, being entirely based on the single solute specific coefficient introduced in Metzger et al. (2012).
Klaus Klingmüller, Andrea Pozzer, Swen Metzger, Georgiy L. Stenchikov, and Jos Lelieveld
Atmos. Chem. Phys., 16, 5063–5073, https://doi.org/10.5194/acp-16-5063-2016, https://doi.org/10.5194/acp-16-5063-2016, 2016
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During the last decade, the Middle East experienced the strongest increase in atmospheric aerosol concentrations worldwide. Based on satellite observations, the present study corroborates this trend and reveals correlations with soil moisture and precipitation in and surrounding the Fertile Crescent. This suggests that the increasing drought conditions in this region have enhanced dust emissions, a tendency which is expected to be intensified by climate change.
M. Abdelkader, S. Metzger, R. E. Mamouri, M. Astitha, L. Barrie, Z. Levin, and J. Lelieveld
Atmos. Chem. Phys., 15, 9173–9189, https://doi.org/10.5194/acp-15-9173-2015, https://doi.org/10.5194/acp-15-9173-2015, 2015
J. C. Kaiser, J. Hendricks, M. Righi, N. Riemer, R. A. Zaveri, S. Metzger, and V. Aquila
Geosci. Model Dev., 7, 1137–1157, https://doi.org/10.5194/gmd-7-1137-2014, https://doi.org/10.5194/gmd-7-1137-2014, 2014
Samuel Rémy, Swen Metzger, Vincent Huijnen, Jason E. Williams, and Johannes Flemming
EGUsphere, https://doi.org/10.5194/egusphere-2023-3072, https://doi.org/10.5194/egusphere-2023-3072, 2024
Short summary
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In this paper we describe the development of the future operational cycle of the IFS-COMPO system, used for operational forecasts of atmospheric composition in the CAMS project, and focus on the implementation of the thermodynamical model EQSAM4Clim version 12. The implementation of EQSAM4Clim significantly improves the simulated secondary inorganic aerosol surface concentration. The new aerosol and precipitation acidity diagnostics showed good agreement against observational datasets.
Anna Martin, Veronika Gayler, Benedikt Steil, Klaus Klingmüller, Patrick Jöckel, Holger Tost, Jos Lelieveld, and Andrea Pozzer
EGUsphere, https://doi.org/10.5194/egusphere-2023-3051, https://doi.org/10.5194/egusphere-2023-3051, 2024
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The study evaluates the land surface and vegetation model JSBACHv4 as a replacement for the simplified submodel SURFACE in EMAC. JSBACH mitigates earlier problems of soil dryness, which are critical for vegetation modelling. When analysed with different data sets, the coupled model shows strong correlations for key variables such as land surface temperature, surface albedo and radiation flux. The versatility of the model is significantly increased, while the overall performance is not degraded.
Swen Metzger, Samuel Rémy, Jason E. Williams, Vincent Huijnen, and Johannes Flemming
EGUsphere, https://doi.org/10.5194/egusphere-2023-2930, https://doi.org/10.5194/egusphere-2023-2930, 2023
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EQSAM4Clim has recently been revised to provide an accurate and efficient method for calculating the acidity of atmospheric particles. It is based on an analytical concept that is sufficiently fast and free of numerical noise, which makes it attractive for air quality forecasting. Version 12 allows the calculation of aerosol composition based on the gas-liquid-solid and the reduced gas-liquid partitioning with the associated water uptake for both cases, including the acidity of the aerosols.
Thomas Kleinen, Sergey Gromov, Benedikt Steil, and Victor Brovkin
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Klaus Klingmüller and Jos Lelieveld
Geosci. Model Dev., 16, 3013–3028, https://doi.org/10.5194/gmd-16-3013-2023, https://doi.org/10.5194/gmd-16-3013-2023, 2023
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Desert dust has significant impacts on climate, public health, infrastructure and ecosystems. An impact assessment requires numerical predictions, which are challenging because the dust emissions are not well known. We present a novel approach using satellite observations and machine learning to more accurately estimate the emissions and to improve the model simulations.
Mohamed Abdelkader, Georgiy Stenchikov, Andrea Pozzer, Holger Tost, and Jos Lelieveld
Atmos. Chem. Phys., 23, 471–500, https://doi.org/10.5194/acp-23-471-2023, https://doi.org/10.5194/acp-23-471-2023, 2023
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We study the effect of injected volcanic ash, water vapor, and SO2 on the development of the volcanic cloud and the stratospheric aerosol optical depth (AOD). Both are sensitive to the initial injection height and to the aging of the volcanic ash shaped by heterogeneous chemistry coupled with the ozone cycle. The paper explains the large differences in AOD for different injection scenarios, which could improve the estimate of the radiative forcing of volcanic eruptions.
Zaneta T. Hamryszczak, Andrea Pozzer, Florian Obersteiner, Birger Bohn, Benedikt Steil, Jos Lelieveld, and Horst Fischer
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Vinod Kumar, Julia Remmers, Steffen Beirle, Joachim Fallmann, Astrid Kerkweg, Jos Lelieveld, Mariano Mertens, Andrea Pozzer, Benedikt Steil, Marc Barra, Holger Tost, and Thomas Wagner
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Klaus Klingmüller and Jos Lelieveld
Geosci. Model Dev., 14, 4429–4441, https://doi.org/10.5194/gmd-14-4429-2021, https://doi.org/10.5194/gmd-14-4429-2021, 2021
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Soil moisture is of great importance for weather and climate. We present a machine learning model that produces accurate predictions of satellite-observed surface soil moisture, based on meteorological data from a climate model. It can be used as soil moisture parametrisation in climate models and to produce comprehensive global soil moisture datasets. Moreover, it may motivate similar applications of machine learning in climate science.
Klaus Klingmüller, Vlassis A. Karydis, Sara Bacer, Georgiy L. Stenchikov, and Jos Lelieveld
Atmos. Chem. Phys., 20, 15285–15295, https://doi.org/10.5194/acp-20-15285-2020, https://doi.org/10.5194/acp-20-15285-2020, 2020
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Particulate air pollution cools the climate and partially masks the greenhouse warming by reflecting sunlight and enhancing the reflection by clouds. The intensity of this cooling depends on interactions between pollution and desert dust within the atmosphere. Our simulations with a global atmospheric chemistry-climate model indicate that these interactions significantly weaken the cooling.
Jianzhong Ma, Christoph Brühl, Qianshan He, Benedikt Steil, Vlassis A. Karydis, Klaus Klingmüller, Holger Tost, Bin Chen, Yufang Jin, Ningwei Liu, Xiangde Xu, Peng Yan, Xiuji Zhou, Kamal Abdelrahman, Andrea Pozzer, and Jos Lelieveld
Atmos. Chem. Phys., 19, 11587–11612, https://doi.org/10.5194/acp-19-11587-2019, https://doi.org/10.5194/acp-19-11587-2019, 2019
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We find a pronounced maximum in aerosol extinction in the upper troposphere and lower stratosphere over the Tibetan Plateau during the Asian summer monsoon, caused mainly by mineral dust emitted from the northern Tibetan Plateau and slope area, lofted to and accumulating within the anticyclonic circulation. Mineral dust, water-soluble compounds, such as nitrate and sulfate, and associated liquid water dominate aerosol extinction around the tropopause within the Asian summer monsoon anticyclone.
Klaus Klingmüller, Jos Lelieveld, Vlassis A. Karydis, and Georgiy L. Stenchikov
Atmos. Chem. Phys., 19, 7397–7408, https://doi.org/10.5194/acp-19-7397-2019, https://doi.org/10.5194/acp-19-7397-2019, 2019
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Within the atmosphere, desert dust and anthropogenic pollution are mixed and interact, which affects the abundance and optical properties of the particulate matter. This results in an anthropogenic climate forcing associated with mineral dust notwithstanding the natural origin of most aeolian dust. With a global chemistry–climate model, we estimate this forcing to represent a considerable fraction of the total dust forcing.
Christoph Brühl, Jennifer Schallock, Klaus Klingmüller, Charles Robert, Christine Bingen, Lieven Clarisse, Andreas Heckel, Peter North, and Landon Rieger
Atmos. Chem. Phys., 18, 12845–12857, https://doi.org/10.5194/acp-18-12845-2018, https://doi.org/10.5194/acp-18-12845-2018, 2018
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Use of multi-instrument satellite data is important to get consistent simulations of aerosol radiative forcing by a complex chemistry climate model, here with a main focus on the lower stratosphere. The satellite data at different wavelengths together with the patterns in the simulated size distribution point to a significant contribution from moist mineral dust lifted to the tropopause region by the Asian summer monsoon.
Klaus Klingmüller, Swen Metzger, Mohamed Abdelkader, Vlassis A. Karydis, Georgiy L. Stenchikov, Andrea Pozzer, and Jos Lelieveld
Geosci. Model Dev., 11, 989–1008, https://doi.org/10.5194/gmd-11-989-2018, https://doi.org/10.5194/gmd-11-989-2018, 2018
Short summary
Short summary
More than 1 billion tons of mineral dust particles are raised into the atmosphere every year, which has a significant impact on climate, society and ecosystems. The location, time and amount of dust emissions depend on surface and wind conditions. In the atmospheric chemistry–climate model EMAC, we have updated the relevant surface data and equations. Our validation shows that the updates substantially improve the agreement of model results and observations.
Mohamed Abdelkader, Swen Metzger, Benedikt Steil, Klaus Klingmüller, Holger Tost, Andrea Pozzer, Georgiy Stenchikov, Leonard Barrie, and Jos Lelieveld
Atmos. Chem. Phys., 17, 3799–3821, https://doi.org/10.5194/acp-17-3799-2017, https://doi.org/10.5194/acp-17-3799-2017, 2017
Short summary
Short summary
We present a modeling study on the impacts of the key processes (dust emission flux, convection and dust aging parameterizations) that control the transatlantic dust transport using an advanced version of the EMAC atmospheric chemistry general circulation model. We define the
direct effect of dust agingas an increase in the AOD as a result of hygroscopic growth. We define the
indirect effectas a reduction in the dust AOD due to the higher removal of the aged dust particles.
Simone Dietmüller, Patrick Jöckel, Holger Tost, Markus Kunze, Catrin Gellhorn, Sabine Brinkop, Christine Frömming, Michael Ponater, Benedikt Steil, Axel Lauer, and Johannes Hendricks
Geosci. Model Dev., 9, 2209–2222, https://doi.org/10.5194/gmd-9-2209-2016, https://doi.org/10.5194/gmd-9-2209-2016, 2016
Short summary
Short summary
Four new radiation related submodels (RAD, AEROPT, CLOUDOPT, and ORBIT) are available within the MESSy framework now. They are largely based on the original radiation scheme of ECHAM5. RAD simulates radiative transfer, AEROPT calculates aerosol optical properties, CLOUDOPT calculates cloud optical properties, and ORBIT is responsible for Earth orbit calculations. Multiple diagnostic calls of the radiation routine are possible, so radiative forcing can be calculated during the model simulation.
Swen Metzger, Benedikt Steil, Mohamed Abdelkader, Klaus Klingmüller, Li Xu, Joyce E. Penner, Christos Fountoukis, Athanasios Nenes, and Jos Lelieveld
Atmos. Chem. Phys., 16, 7213–7237, https://doi.org/10.5194/acp-16-7213-2016, https://doi.org/10.5194/acp-16-7213-2016, 2016
Short summary
Short summary
We introduce an unique single parameter framework to efficiently parameterize the aerosol water uptake for mixtures of semi-volatile and non-volatile compounds, being entirely based on the single solute specific coefficient introduced in Metzger et al. (2012).
Klaus Klingmüller, Andrea Pozzer, Swen Metzger, Georgiy L. Stenchikov, and Jos Lelieveld
Atmos. Chem. Phys., 16, 5063–5073, https://doi.org/10.5194/acp-16-5063-2016, https://doi.org/10.5194/acp-16-5063-2016, 2016
Short summary
Short summary
During the last decade, the Middle East experienced the strongest increase in atmospheric aerosol concentrations worldwide. Based on satellite observations, the present study corroborates this trend and reveals correlations with soil moisture and precipitation in and surrounding the Fertile Crescent. This suggests that the increasing drought conditions in this region have enhanced dust emissions, a tendency which is expected to be intensified by climate change.
M. Abdelkader, S. Metzger, R. E. Mamouri, M. Astitha, L. Barrie, Z. Levin, and J. Lelieveld
Atmos. Chem. Phys., 15, 9173–9189, https://doi.org/10.5194/acp-15-9173-2015, https://doi.org/10.5194/acp-15-9173-2015, 2015
H. G. Ouwersloot, A. Pozzer, B. Steil, H. Tost, and J. Lelieveld
Geosci. Model Dev., 8, 2435–2445, https://doi.org/10.5194/gmd-8-2435-2015, https://doi.org/10.5194/gmd-8-2435-2015, 2015
K. Klingmüller, B. Steil, C. Brühl, H. Tost, and J. Lelieveld
Geosci. Model Dev., 7, 2503–2516, https://doi.org/10.5194/gmd-7-2503-2014, https://doi.org/10.5194/gmd-7-2503-2014, 2014
D. Y. Chang, H. Tost, B. Steil, and J. Lelieveld
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acpd-14-21975-2014, https://doi.org/10.5194/acpd-14-21975-2014, 2014
Preprint withdrawn
A. K. Mishra, K. Klingmueller, E. Fredj, J. Lelieveld, Y. Rudich, and I. Koren
Atmos. Chem. Phys., 14, 7213–7231, https://doi.org/10.5194/acp-14-7213-2014, https://doi.org/10.5194/acp-14-7213-2014, 2014
J. C. Kaiser, J. Hendricks, M. Righi, N. Riemer, R. A. Zaveri, S. Metzger, and V. Aquila
Geosci. Model Dev., 7, 1137–1157, https://doi.org/10.5194/gmd-7-1137-2014, https://doi.org/10.5194/gmd-7-1137-2014, 2014
Y. F. Elshorbany, P. J. Crutzen, B. Steil, A. Pozzer, H. Tost, and J. Lelieveld
Atmos. Chem. Phys., 14, 1167–1184, https://doi.org/10.5194/acp-14-1167-2014, https://doi.org/10.5194/acp-14-1167-2014, 2014
Related subject area
Subject: Aerosols | Research Activity: Atmospheric Modelling and Data Analysis | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
Comparing the simulated influence of biomass burning plumes on low-level clouds over the southeastern Atlantic under varying smoke conditions
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Sharp increase in Saharan dust intrusions over the western Euro-Mediterranean in February–March 2020–2022 and associated atmospheric circulation
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Regional to global distributions, trends, and drivers of biogenic volatile organic compound emission from 2001 to 2020
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Fire–precipitation interactions amplify the quasi-biennial variability in fires over southern Mexico and Central America
Improved estimates of smoke exposure during Australia fire seasons: importance of quantifying plume injection heights
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A new process-based and scale-aware desert dust emission scheme for global climate models – Part II: Evaluation in the Community Earth System Model version 2 (CESM2)
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Impact of acidity and surface-modulated acid dissociation on cloud response to organic aerosol
The contribution of residential wood combustion to the PM2.5 concentrations in the Helsinki metropolitan area
Analysis of atmospheric particle growth based on vapor concentrations measured at the high-altitude GAW station Chacaltaya in the Bolivian Andes
Expanding the simulation of East Asian super dust storms: physical transport mechanisms impacting the western Pacific
Improving 3-day deterministic air pollution forecasts using machine learning algorithms
Opinion: The importance of historical and paleoclimate aerosol radiative effects
Assessing the assimilation of Himawari-8 observations on aerosol forecasts and radiative effects during pollution transport from South Asia to the Tibetan Plateau
Aerosol–meteorology feedback diminishes the transboundary transport of black carbon into the Tibetan Plateau
Associations of interannual variation in summer tropospheric ozone with the Western Pacific Subtropical High in China from 1999 to 2017
Climate intervention using marine cloud brightening (MCB) compared with stratospheric aerosol injection (SAI) in the UKESM1 climate model
Comparison of six approaches to predicting droplet activation of surface active aerosol – Part 2: Strong surfactants
Increased importance of aerosol–cloud interactions for surface PM2.5 pollution relative to aerosol–radiation interactions in China with the anthropogenic emission reductions
The role of temporal scales in extracting dominant meteorological drivers of major airborne pollutants
Biomass-burning smoke's properties and its interactions with marine stratocumulus clouds in WRF-CAM5 and southeastern Atlantic field campaigns
Air pollution trapping in the Dresden Basin from gray-zone scale urban modeling
The effect of atmospherically relevant aminium salts on water uptake
Droplet collection efficiencies estimated from satellite retrievals constrain effective radiative forcing of aerosol-cloud interactions
Intercomparison of Aerosol Optical Depths from four reanalyses and their multi-reanalysis-consensus
The impact of aerosols on stratiform clouds over southern West Africa: a large-eddy-simulation study
Numerical simulation and evaluation of global ultrafine particle concentrations at the Earth's surface
Rapid Iodine Oxoacids Nucleation Enhanced by Dimethylamine in Broad Marine Regions
Global aviation contrail climate effects from 2019 to 2021
Global aerosol typing classification using a new hybrid algorithm utilizing Aerosol Robotic Network data
Diagnosing uncertainties in global biomass burning emission inventories and their impact on modeled air pollutants
The underappreciated role of transboundary pollution in future air quality and health improvements in China
The export of African mineral dust across the Atlantic and its impact over the Amazon Basin
Assimilation of POLDER observations to estimate aerosol emissions
Role of atmospheric aerosols in severe winter fog over Indo Gangetic Plains of India: a case study
Effect of radiation interaction and aerosol processes on ventilation and aerosol concentrations in a real urban neighbourhood in Helsinki
Numerical evidence that the impact of CCN and INP concentrations on mixed-phase clouds is observable with cloud radars
Atlantic Multidecadal Oscillation modulates the relationship between El Niño–Southern Oscillation and fire weather in Australia
Phase state and viscosity of secondary organic aerosols over China simulated by WRF-Chem
Identifying climate model structural inconsistencies allows for tight constraint of aerosol radiative forcing
Alejandro Baró Pérez, Michael S. Diamond, Frida A.-M. Bender, Abhay Devasthale, Matthias Schwarz, Julien Savre, Juha Tonttila, Harri Kokkola, Hyunho Lee, David Painemal, and Annica M. L. Ekman
Atmos. Chem. Phys., 24, 4591–4610, https://doi.org/10.5194/acp-24-4591-2024, https://doi.org/10.5194/acp-24-4591-2024, 2024
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We use a numerical model to study interactions between humid light-absorbing aerosol plumes, clouds, and radiation over the southeast Atlantic. We find that the warming produced by the aerosols reduces cloud cover, especially in highly polluted situations. Aerosol impacts on drizzle play a minor role. However, aerosol effects on cloud reflectivity and moisture-induced changes in cloud cover dominate the climatic response and lead to an overall cooling by the biomass burning plumes.
Sampa Das, Peter R. Colarco, Huisheng Bian, and Santiago Gassó
Atmos. Chem. Phys., 24, 4421–4449, https://doi.org/10.5194/acp-24-4421-2024, https://doi.org/10.5194/acp-24-4421-2024, 2024
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The smoke aerosols emitted from vegetation burning can alter the regional energy budget via multiple pathways. We utilized detailed observations from the NASA ORACLES airborne campaign based in Namibia during September 2016 to improve the representation of smoke aerosol properties and lifetimes in our GEOS Earth system model. The improved model simulations are for the first time able to capture the observed changes in the smoke absorption during long-range plume transport.
Emilio Cuevas-Agulló, David Barriopedro, Rosa Delia García, Silvia Alonso-Pérez, Juan Jesús González-Alemán, Ernest Werner, David Suárez, Juan José Bustos, Gerardo García-Castrillo, Omaira García, África Barreto, and Sara Basart
Atmos. Chem. Phys., 24, 4083–4104, https://doi.org/10.5194/acp-24-4083-2024, https://doi.org/10.5194/acp-24-4083-2024, 2024
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During February–March (FM) 2020–2022, unusually intense dust storms from northern Africa hit the western Euro-Mediterranean (WEM). Using dust products from satellites and atmospheric reanalysis for 2003–2022, results show that cut-off lows and European blocking are key drivers of FM dust intrusions over the WEM. A higher frequency of cut-off lows associated with subtropical ridges is observed in the late 2020–2022 period.
Yahui Che, Bofu Yu, and Katherine Bracco
Atmos. Chem. Phys., 24, 4105–4128, https://doi.org/10.5194/acp-24-4105-2024, https://doi.org/10.5194/acp-24-4105-2024, 2024
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Dust events occur more frequently during the Austral spring and summer in dust regions, including central Australia, the southwest of Western Australia, and the northern and southern regions of eastern Australia using remote sensing and reanalysis datasets. High-concentration dust is distributed around central Australia and in the downwind northern and southern Australia. Typically, around 50 % of the dust lifted settles on Australian land, with the remaining half being deposited in the ocean.
Jonathan Elsey, Nicolas Bellouin, and Claire Ryder
Atmos. Chem. Phys., 24, 4065–4081, https://doi.org/10.5194/acp-24-4065-2024, https://doi.org/10.5194/acp-24-4065-2024, 2024
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Aerosols influence the Earth's energy balance. The uncertainty in this radiative forcing is large depending partly on uncertainty in measurements of aerosol optical properties. We have developed a freely available new framework of millions of radiative transfer simulations spanning aerosol uncertainty and assess the impact on radiative forcing uncertainty. We find that reducing these uncertainties would reduce radiative forcing uncertainty, but non-aerosol uncertainties must also be considered.
Jing Li, Nan Wu, Biwu Chu, An Ning, and Xiuhui Zhang
Atmos. Chem. Phys., 24, 3989–4000, https://doi.org/10.5194/acp-24-3989-2024, https://doi.org/10.5194/acp-24-3989-2024, 2024
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Iodic acid (HIO3) nucleates with iodous acid (HIO2) efficiently in marine areas; however, whether methanesulfonic acid (MSA) can synergistically participate in the HIO3–HIO2-based nucleation is unclear. We provide molecular-level evidence that MSA can efficiently promote the formation of HIO3–HIO2-based clusters using a theoretical approach. The proposed MSA-enhanced iodine nucleation mechanism may help us to deeply understand marine new particle formation events with bursts of iodine particles.
Hao Wang, Xiaohong Liu, Chenglai Wu, and Guangxing Lin
Atmos. Chem. Phys., 24, 3309–3328, https://doi.org/10.5194/acp-24-3309-2024, https://doi.org/10.5194/acp-24-3309-2024, 2024
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We quantified different global- and regional-scale drivers of biogenic volatile organic compound (BVOC) emission trends over the past 20 years. The results show that global greening trends significantly boost BVOC emissions and deforestation reduces BVOC emissions in South America and Southeast Asia. Elevated temperature in Europe and increased soil moisture in East and South Asia enhance BVOC emissions. The results deepen our understanding of long-term BVOC emission trends in hotspots.
Christof G. Beer, Johannes Hendricks, and Mattia Righi
Atmos. Chem. Phys., 24, 3217–3240, https://doi.org/10.5194/acp-24-3217-2024, https://doi.org/10.5194/acp-24-3217-2024, 2024
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Ice-nucleating particles (INPs) have important influences on cirrus clouds and the climate system; however, the understanding of their global impacts is still uncertain. We perform numerical simulations with a global aerosol–climate model to analyse INP-induced cirrus changes and the resulting climate impacts. We evaluate various sources of uncertainties, e.g. the ice-nucleating ability of INPs and the role of model dynamics, and provide a new estimate for the global INP–cirrus effect.
Jiawei Li, Zhiwei Han, Pingqing Fu, Xiaohong Yao, and Mingjie Liang
Atmos. Chem. Phys., 24, 3129–3161, https://doi.org/10.5194/acp-24-3129-2024, https://doi.org/10.5194/acp-24-3129-2024, 2024
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Organic aerosols of marine origin are important for aerosol climatic effects but are poorly understood. For the first time, an online coupled regional chemistry–climate model is applied to explore the characteristics of emission, distribution, and direct and indirect radiative effects of marine organic aerosols over the western Pacific, which reveals an important role of marine organic aerosols in perturbing cloud and radiation and promotes understanding of global aerosol climatic impact.
Yawen Liu, Yun Qian, Philip J. Rasch, Kai Zhang, Lai-yung Ruby Leung, Yuhang Wang, Minghuai Wang, Hailong Wang, Xin Huang, and Xiu-Qun Yang
Atmos. Chem. Phys., 24, 3115–3128, https://doi.org/10.5194/acp-24-3115-2024, https://doi.org/10.5194/acp-24-3115-2024, 2024
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Fire management has long been a challenge. Here we report that spring-peak fire activity over southern Mexico and Central America (SMCA) has a distinct quasi-biennial signal by measuring multiple fire metrics. This signal is initially driven by quasi-biennial variability in precipitation and is further amplified by positive feedback of fire–precipitation interaction at short timescales. This work highlights the importance of fire–climate interactions in shaping fires on an interannual scale.
Xu Feng, Loretta J. Mickley, Michelle L. Bell, Tianjia Liu, Jenny A. Fisher, and Maria Val Martin
Atmos. Chem. Phys., 24, 2985–3007, https://doi.org/10.5194/acp-24-2985-2024, https://doi.org/10.5194/acp-24-2985-2024, 2024
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During severe wildfire seasons, smoke can have a significant impact on air quality in Australia. Our study demonstrates that characterization of the smoke plume injection fractions greatly affects estimates of surface smoke PM2.5. Using the plume behavior predicted by the machine learning method leads to the best model agreement with observed surface PM2.5 in key cities across Australia, with smoke PM2.5 accounting for 5 %–52 % of total PM2.5 on average during fire seasons from 2009 to 2020.
Shiyi Lai, Ximeng Qi, Xin Huang, Sijia Lou, Xuguang Chi, Liangduo Chen, Chong Liu, Yuliang Liu, Chao Yan, Mengmeng Li, Tengyu Liu, Wei Nie, Veli-Matti Kerminen, Tuukka Petäjä, Markku Kulmala, and Aijun Ding
Atmos. Chem. Phys., 24, 2535–2553, https://doi.org/10.5194/acp-24-2535-2024, https://doi.org/10.5194/acp-24-2535-2024, 2024
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By combining in situ measurements and chemical transport modeling, this study investigates new particle formation (NPF) on the southeastern Tibetan Plateau. We found that the NPF was driven by the presence of biogenic gases and the transport of anthropogenic precursors. The NPF was vertically heterogeneous and shaped by the vertical mixing. This study highlights the importance of anthropogenic–biogenic interactions and meteorological dynamics in NPF in this climate-sensitive region.
Adriana Rocha-Lima, Peter R. Colarco, Anton S. Darmenov, Edward P. Nowottnick, Arlindo M. da Silva, and Luke D. Oman
Atmos. Chem. Phys., 24, 2443–2464, https://doi.org/10.5194/acp-24-2443-2024, https://doi.org/10.5194/acp-24-2443-2024, 2024
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Observations show an increasing aerosol optical depth trend in the Middle East between 2003–2012. We evaluate the NASA Goddard Earth Observing System (GEOS) model's ability to capture these trends and examine the meteorological and surface parameters driving dust emissions. Our results highlight the importance of data assimilation for long-term trends of atmospheric aerosols and support the hypothesis that vegetation cover loss may have contributed to increasing dust emissions in the period.
Danny M. Leung, Jasper F. Kok, Longlei Li, Natalie M. Mahowald, David M. Lawrence, Simone Tilmes, Erik Kluzek, Martina Klose, and Carlos Pérez García-Pando
Atmos. Chem. Phys., 24, 2287–2318, https://doi.org/10.5194/acp-24-2287-2024, https://doi.org/10.5194/acp-24-2287-2024, 2024
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This study uses a premier Earth system model to evaluate a new desert dust emission scheme proposed in our companion paper. We show that our scheme accounts for more dust emission physics, hence matching better against observations than other existing dust emission schemes do. Our scheme's dust emissions also couple tightly with meteorology, hence likely improving the modeled dust sensitivity to climate change. We believe this work is vital for improving dust representation in climate models.
Basudev Swain, Marco Vountas, Aishwarya Singh, Nidhi L. Anchan, Adrien Deroubaix, Luca Lelli, Yanick Ziegler, Sachin S. Gunthe, Hartmut Bösch, and John P. Burrows
EGUsphere, https://doi.org/10.5194/egusphere-2024-440, https://doi.org/10.5194/egusphere-2024-440, 2024
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Arctic amplification (AA) accelerates the warming of the central Arctic cryosphere and affects aerosol dynamics. Limited observations hinder a comprehensive analysis. This study uses AEROSNOW AOD data and GEOS-Chem simulations to assess AOD variability. Discrepancies highlight the need for improved observational integration into models to refine understanding of aerosol effects on cloud microphysics, ice nucleation and radiative forcing under evolving AA.
Ruth A. R. Digby, Nathan P. Gillett, Adam H. Monahan, Knut von Salzen, Antonis Gkikas, Qianqian Song, and Zhibo Zhang
Atmos. Chem. Phys., 24, 2077–2097, https://doi.org/10.5194/acp-24-2077-2024, https://doi.org/10.5194/acp-24-2077-2024, 2024
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The COVID-19 lockdowns reduced aerosol emissions. We ask whether these reductions affected regional aerosol optical depth (AOD) and compare the observed changes to predictions from Earth system models. Only India has an observed AOD reduction outside of typical variability. Models overestimate the response in some regions, but when key biases have been addressed, the agreement is improved. Our results suggest that current models can realistically predict the effects of future emission changes.
Huisheng Bian, Mian Chin, Peter R. Colarco, Eric C. Apel, Donald R. Blake, Karl Froyd, Rebecca S. Hornbrook, Jose Jimenez, Pedro Campuzano Jost, Michael Lawler, Mingxu Liu, Marianne Tronstad Lund, Hitoshi Matsui, Benjamin A. Nault, Joyce E. Penner, Andrew W. Rollins, Gregory Schill, Ragnhild B. Skeie, Hailong Wang, Lu Xu, Kai Zhang, and Jialei Zhu
Atmos. Chem. Phys., 24, 1717–1741, https://doi.org/10.5194/acp-24-1717-2024, https://doi.org/10.5194/acp-24-1717-2024, 2024
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This work studies sulfur in the remote troposphere at global and seasonal scales using aircraft measurements and multi-model simulations. The goal is to understand the sulfur cycle over remote oceans, spread of model simulations, and observation–model discrepancies. Such an understanding and comparison with real observations are crucial to narrow down the uncertainties in model sulfur simulations and improve understanding of the sulfur cycle in atmospheric air quality, climate, and ecosystems.
Gargi Sengupta, Minjie Zheng, and Nønne L. Prisle
Atmos. Chem. Phys., 24, 1467–1487, https://doi.org/10.5194/acp-24-1467-2024, https://doi.org/10.5194/acp-24-1467-2024, 2024
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The effect of organic acid aerosol on sulfur chemistry and cloud properties was investigated in an atmospheric model. Organic acid dissociation was considered using both bulk and surface-related properties. We found that organic acid dissociation leads to increased hydrogen ion concentrations and sulfate aerosol mass in aqueous aerosols, increasing cloud formation. This could be important in large-scale climate models as many organic aerosol components are both acidic and surface-active.
Leena Kangas, Jaakko Kukkonen, Mari Kauhaniemi, Kari Riikonen, Mikhail Sofiev, Anu Kousa, Jarkko V. Niemi, and Ari Karppinen
Atmos. Chem. Phys., 24, 1489–1507, https://doi.org/10.5194/acp-24-1489-2024, https://doi.org/10.5194/acp-24-1489-2024, 2024
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Residential wood combustion is a major source of fine particulate matter. This study has evaluated the contribution of residential wood combustion to fine particle concentrations and its year-to-year and seasonal variation in te Helsinki metropolitan area. The average concentrations attributed to wood combustion in winter were up to 10- or 15-fold compared to summer. Wood combustion caused 12 % to 14 % of annual fine particle concentrations. In winter, the contribution ranged from 16 % to 21 %.
Arto Heitto, Cheng Wu, Diego Aliaga, Luis Blacutt, Xuemeng Chen, Yvette Gramlich, Liine Heikkinen, Wei Huang, Radovan Krejci, Paolo Laj, Isabel Moreno, Karine Sellegri, Fernando Velarde, Kay Weinhold, Alfred Wiedensohler, Qiaozhi Zha, Federico Bianchi, Marcos Andrade, Kari E. J. Lehtinen, Claudia Mohr, and Taina Yli-Juuti
Atmos. Chem. Phys., 24, 1315–1328, https://doi.org/10.5194/acp-24-1315-2024, https://doi.org/10.5194/acp-24-1315-2024, 2024
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Particle growth at the Chacaltaya station in Bolivia was simulated based on measured vapor concentrations and ambient conditions. Major contributors to the simulated growth were low-volatility organic compounds (LVOCs). Also, sulfuric acid had major role when volcanic activity was occurring in the area. This study provides insight on nanoparticle growth at this high-altitude Southern Hemispheric site and hence contributes to building knowledge of early growth of atmospheric particles.
Steven Soon-Kai Kong, Saginela Ravindra Babu, Sheng-Hsiang Wang, Stephen M. Griffith, Jackson Hian-Wui Chang, Ming-Tung Chuang, Guey-Rong Sheu, and Neng-Huei Lin
Atmos. Chem. Phys., 24, 1041–1058, https://doi.org/10.5194/acp-24-1041-2024, https://doi.org/10.5194/acp-24-1041-2024, 2024
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In this study, we combined ground observations from 7-SEAS Dongsha Experiment, MERRA-2 reanalysis, and MODIS satellite images for evaluation and improvement of the CMAQ dust model for cases of East Asian Dust reaching the Taiwan region, including Dongsha in the western Pacific. We proposed a better CMAQ dust treatment over East Asia and for the first time revealed the impact of typhoons on dust transport.
Zhiguo Zhang, Christer Johansson, Magnuz Engardt, Massimo Stafoggia, and Xiaoliang Ma
Atmos. Chem. Phys., 24, 807–851, https://doi.org/10.5194/acp-24-807-2024, https://doi.org/10.5194/acp-24-807-2024, 2024
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Up-to-date information on present and near-future air quality help people avoid exposure to high levels of air pollution. We apply different machine learning models to significantly improve traditional forecasts of PM10, NOx, and O3 in Stockholm, Sweden. It is shown that forecasts of all air pollutants are improved by the input of lagged measurements and taking calendar information into account. The final modelled errors are substantially smaller than uncertainties in the measurements.
Natalie M. Mahowald, Longlei Li, Samuel Albani, Douglas S. Hamilton, and Jasper F. Kok
Atmos. Chem. Phys., 24, 533–551, https://doi.org/10.5194/acp-24-533-2024, https://doi.org/10.5194/acp-24-533-2024, 2024
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Estimating past aerosol radiative effects and their uncertainties is an important topic in climate science. Aerosol radiative effects propagate into large uncertainties in estimates of how present and future climate evolves with changing greenhouse gas emissions. A deeper understanding of how aerosols interacted with the atmospheric energy budget under past climates is hindered in part by a lack of relevant paleo-observations and in part because less attention has been paid to the problem.
Min Zhao, Tie Dai, Daisuke Goto, Hao Wang, and Guangyu Shi
Atmos. Chem. Phys., 24, 235–258, https://doi.org/10.5194/acp-24-235-2024, https://doi.org/10.5194/acp-24-235-2024, 2024
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During a springtime pollution input from South Asia to the Tibetan Plateau, we combined atmospheric chemistry modeling and data assimilation methods to assimilate and forecast aerosols from South Asia and the Tibetan Plateau. Assimilation of observations over a whole time window leads to a more reasonable distribution of daily variations in the aerosol forecast field. We also find that aerosol assimilation can improve the surface solar energy forecast in the Tibetan Plateau region.
Yuling Hu, Haipeng Yu, Shichang Kang, Junhua Yang, Mukesh Rai, Xiufeng Yin, Xintong Chen, and Pengfei Chen
Atmos. Chem. Phys., 24, 85–107, https://doi.org/10.5194/acp-24-85-2024, https://doi.org/10.5194/acp-24-85-2024, 2024
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The Tibetan Plateau (TP) saw a record-breaking aerosol pollution event from April 20 to May 10, 2016. We studied the impact of aerosol–meteorology feedback on the transboundary transport flux of black carbon (BC) during this severe pollution event. It was found that the aerosol–meteorology feedback decreases the transboundary transport flux of BC from the central and western Himalayas towards the TP. This study is of great significance for the protection of the ecological environment of the TP.
Xiaodong Zhang, Ruiyu Zhugu, Xiaohu Jian, Xinrui Liu, Kaijie Chen, Shu Tao, Junfeng Liu, Hong Gao, Tao Huang, and Jianmin Ma
Atmos. Chem. Phys., 23, 15629–15642, https://doi.org/10.5194/acp-23-15629-2023, https://doi.org/10.5194/acp-23-15629-2023, 2023
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WRF-Chem modeling was conducted to assess impacts of Western Pacific Subtropical High Pressure (WPSH) on interannual fluctuations of O3 pollution in China. We find that, while precursor emissions dominated the long-term trend and magnitude of O3 from 1999 to 2017, WPSH determined interannual variation of summer O3. The response of O3 pollution to WPSH in major urban clusters depended on the proximity of these urban areas to WPSH. The results could help long-term O3 pollution mitigation planning.
Jim M. Haywood, Andy Jones, Anthony C. Jones, Paul Halloran, and Philip J. Rasch
Atmos. Chem. Phys., 23, 15305–15324, https://doi.org/10.5194/acp-23-15305-2023, https://doi.org/10.5194/acp-23-15305-2023, 2023
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The difficulties in ameliorating global warming and the associated climate change via conventional mitigation are well documented, with all climate model scenarios exceeding 1.5 °C above the preindustrial level in the near future. There is therefore a growing interest in geoengineering to reflect a greater proportion of sunlight back to space and offset some of the global warming. We use a state-of-the-art Earth-system model to investigate two of the most prominent geoengineering strategies.
Sampo Vepsäläinen, Silvia M. Calderón, and Nønne L. Prisle
Atmos. Chem. Phys., 23, 15149–15164, https://doi.org/10.5194/acp-23-15149-2023, https://doi.org/10.5194/acp-23-15149-2023, 2023
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Atmospheric aerosols act as seeds for cloud formation. Many aerosols contain surface active material that accumulates at the surface of growing droplets. This can affect cloud droplet activation, but the broad significance of the effect and the best way to model it are still debated. We compare predictions of six models to surface activity of strongly surface active aerosol and find significant differences between the models, especially with large fractions of surfactant in the dry particles.
Da Gao, Bin Zhao, Shuxiao Wang, Yuan Wang, Brian Gaudet, Yun Zhu, Xiaochun Wang, Jiewen Shen, Shengyue Li, Yicong He, Dejia Yin, and Zhaoxin Dong
Atmos. Chem. Phys., 23, 14359–14373, https://doi.org/10.5194/acp-23-14359-2023, https://doi.org/10.5194/acp-23-14359-2023, 2023
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Surface PM2.5 concentrations can be enhanced by aerosol–radiation interactions (ARIs) and aerosol–cloud interactions (ACIs). In this study, we found PM2.5 enhancement induced by ACIs shows a significantly smaller decrease ratio than that induced by ARIs in China with anthropogenic emission reduction from 2013 to 2021, making ACIs more important for enhancing PM2.5 concentrations. ACI-induced PM2.5 enhancement needs to be emphatically considered to meet the national PM2.5 air quality standard.
Miaoqing Xu, Jing Yang, Manchun Li, Xiao Chen, Qiancheng Lv, Qi Yao, Bingbo Gao, and Ziyue Chen
Atmos. Chem. Phys., 23, 14065–14076, https://doi.org/10.5194/acp-23-14065-2023, https://doi.org/10.5194/acp-23-14065-2023, 2023
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Although the temporal-scale effects on PM2.5–meteorology associations have been discussed, no quantitative evidence has proved this before. Based on rare 3 h meteorology data, we revealed that the dominant meteorological factor for PM2.5 concentrations across China extracted at the 3 h and 24 h scales presented large variations. This research suggests that data sources of different temporal scales should be comprehensively considered for better attribution and prevention of airborne pollution.
Calvin Howes, Pablo E. Saide, Hugh Coe, Amie Dobracki, Steffen Freitag, Jim M. Haywood, Steven G. Howell, Siddhant Gupta, Janek Uin, Mary Kacarab, Chongai Kuang, L. Ruby Leung, Athanasios Nenes, Greg M. McFarquhar, James Podolske, Jens Redemann, Arthur J. Sedlacek, Kenneth L. Thornhill, Jenny P. S. Wong, Robert Wood, Huihui Wu, Yang Zhang, Jianhao Zhang, and Paquita Zuidema
Atmos. Chem. Phys., 23, 13911–13940, https://doi.org/10.5194/acp-23-13911-2023, https://doi.org/10.5194/acp-23-13911-2023, 2023
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To better understand smoke properties and its interactions with clouds, we compare the WRF-CAM5 model with observations from ORACLES, CLARIFY, and LASIC field campaigns in the southeastern Atlantic in August 2017. The model transports and mixes smoke well but does not fully capture some important processes. These include smoke chemical and physical aging over 4–12 days, smoke removal by rain, sulfate particle formation, aerosol activation into cloud droplets, and boundary layer turbulence.
Michael Weger and Bernd Heinold
Atmos. Chem. Phys., 23, 13769–13790, https://doi.org/10.5194/acp-23-13769-2023, https://doi.org/10.5194/acp-23-13769-2023, 2023
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This study investigates the effects of complex terrain on air pollution trapping using a numerical model which simulates the dispersion of emissions under real meteorological conditions. The additionally simulated aerosol age allows us to distinguish areas that accumulate aerosol over time from areas that are more influenced by fresh emissions. The Dresden Basin, a widened section of the Elbe Valley in eastern Germany, is selected as the target area in a case study to demonstrate the concept.
Noora Hyttinen
Atmos. Chem. Phys., 23, 13809–13817, https://doi.org/10.5194/acp-23-13809-2023, https://doi.org/10.5194/acp-23-13809-2023, 2023
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Water activity in aerosol particles describes how particles respond to variations in relative humidity. Here, water activities were calculated for a set of 80 salts that may be present in aerosol particles using a state-of-the-art quantum-chemistry-based method. The effect of the dissociated salt on water activity varies with both the cation and anion. Most of the studied salts increase water uptake compared to pure water-soluble organic particles.
Charlotte M. Beall, Po-Lun Ma, Matthew W. Christensen, Johannes Mülmenstädt, Adam Varble, Kentaroh Suzuki, and Takuro Michibata
EGUsphere, https://doi.org/10.5194/egusphere-2023-2161, https://doi.org/10.5194/egusphere-2023-2161, 2023
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Single-layer warm liquid clouds cover nearly one-third of the earth's surface, and uncertainties regarding the impact of aerosols on their radiative properties pose a significant challenge to climate prediction. Here, we demonstrate how satellite observations can be used to constrain Earth Systems Model estimates of the radiative forcing due to the interactions of aerosols with clouds due to warm rain processes.
Peng Xian, Jeffrey S. Reid, Melanie Ades, Angela Benedettie, Peter R. Colarco, Arlindo da Silva, Tom F. Eck, Johannes Flemming, Edward J. Hyer, Zak Kipling, Samuel Rémy, Tsuyoshi Thomas Sekiyama, Taichu Tanaka, Keiya Yumimoto, and Jianglong Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2023-2354, https://doi.org/10.5194/egusphere-2023-2354, 2023
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The study compares and evaluates the monthly aerosol optical depth of four reanalyses (RA) and their consensus. The basic verification characteristics of these RA versus both AERONET and MODIS retrievals are presented. The study discusses the strength of each RA and identifies regions where diversity and challenges are prominent. The RA consensus usually performs very well on a global scale in terms of how well it matches the observational data, making it a good choice for various applications.
Lambert Delbeke, Chien Wang, Pierre Tulet, Cyrielle Denjean, Maurin Zouzoua, Nicolas Maury, and Adrien Deroubaix
Atmos. Chem. Phys., 23, 13329–13354, https://doi.org/10.5194/acp-23-13329-2023, https://doi.org/10.5194/acp-23-13329-2023, 2023
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Low-level stratiform clouds (LLSCs) appear frequently over southern West Africa during the West African monsoon. Local and remote aerosol sources (biomass burning aerosols from central Africa) play a significant role in the LLSC life cycle. Based on measurements by the DACCIWA campaign, large-eddy simulation (LES) was conducted using different aerosol scenarios. The results show that both indirect and semi-direct effects can act individually or jointly to influence the life cycles of LLSCs.
Matthias Kohl, Jos Lelieveld, Sourangsu Chowdhury, Sebastian Ehrhart, Disha Sharma, Yafang Cheng, Sachchida Nand Tripathi, Mathew Sebastian, Govindan Pandithurai, Hongli Wang, and Andrea Pozzer
Atmos. Chem. Phys., 23, 13191–13215, https://doi.org/10.5194/acp-23-13191-2023, https://doi.org/10.5194/acp-23-13191-2023, 2023
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Knowledge on atmospheric ultrafine particles (UFPs) with a diameter smaller than 100 nm is crucial for public health and the hydrological cycle. We present a new global dataset of UFP concentrations at the Earth's surface derived with a comprehensive chemistry–climate model and evaluated with ground-based observations. The evaluation results are combined with high-resolution primary emissions to downscale UFP concentrations to an unprecedented horizontal resolution of 0.1° × 0.1°.
Haotian Zu, Biwu Chu, Yiqun Lu, Ling Liu, and Xiuhui Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2023-1774, https://doi.org/10.5194/egusphere-2023-1774, 2023
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The nucleation process of iodic acid (HIO3) and iodous acid (HIO2) was proved to be critical in marine areas. However, HIO3-HIO2 nucleation cannot effectively derive the observed rapid new particle formation in broad marine areas. We show the extensive participation of dimethylamine (DMA) in HIO3-HIO2 nucleation and find a significant enhancement of DMA on the HIO3-HIO2 nucleation, which establishes reasonable connections between the iodine oxoacids nucleation and the rapid marine new particles.
Roger Teoh, Zebediah Engberg, Ulrich Schumann, Christiane Voigt, Marc Shapiro, Susanne Rohs, and Marc Stettler
EGUsphere, https://doi.org/10.5194/egusphere-2023-1859, https://doi.org/10.5194/egusphere-2023-1859, 2023
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The radiative forcing attributable to aviation contrails is estimated for 2019–21. We estimate a global contrail net RF that is approximately half the best estimate of a previous study. Contrail climate impacts have not scaled proportionally with air traffic growth due to higher growth in regions where contrails are less likely to form. There are significant opportunities to mitigate contrail impacts as only 2 % of all flights globally account for 80 % of the annual contrail energy forcing.
Xiaoli Wei, Qian Cui, Leiming Ma, Feng Zhang, Wenwen Li, and Peng Liu
EGUsphere, https://doi.org/10.5194/egusphere-2023-1754, https://doi.org/10.5194/egusphere-2023-1754, 2023
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A new aerosol-type classification algorithm was proposed. It includes an optical database building by Mie scattering and a complex refractive index working as a baseline to identify different aerosol types. The new algorithm shows high accuracy and efficiency. Hence, a global map of aerosol types was generated using the new algorithm to characterize aerosol types across the five continents. It will help improve the accuracy of aerosol inversion and determine the sources of aerosol pollution.
Wenxuan Hua, Sijia Lou, Xin Huang, Lian Xue, Ke Ding, Zilin Wang, and Aijun Ding
EGUsphere, https://doi.org/10.5194/egusphere-2023-1822, https://doi.org/10.5194/egusphere-2023-1822, 2023
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In this study, we diagnose uncertainties in CO and OC emissions from four inventories for seven majorwildfire-prone regions. Uncertainties in vegetation classification methods, fire detection products, and cloud obscuration effects lead to bias in these biomass burning (BB) emission inventories. By comparing simulations with measurements, we provide certain inventory recommendations. Our study has implications for reducing uncertainties in emissions in further studies.
Jun-Wei Xu, Jintai Lin, Dan Tong, and Lulu Chen
Atmos. Chem. Phys., 23, 10075–10089, https://doi.org/10.5194/acp-23-10075-2023, https://doi.org/10.5194/acp-23-10075-2023, 2023
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This study highlights the necessity of a low-carbon pathway in foreign countries for China to achieve air quality goals and to protect public health. We find that adopting the low-carbon instead of the fossil-fuel-intensive pathway in foreign countries would prevent 63 000–270 000 transboundary PM2.5-associated mortalities in China in 2060. Our study provides direct evidence of the necessity of inter-regional cooperation for air quality improvement.
Xurong Wang, Qiaoqiao Wang, Maria Prass, Christopher Pöhlker, Daniel Moran-Zuloaga, Paulo Artaxo, Jianwei Gu, Ning Yang, Xiajie Yang, Jiangchuan Tao, Juan Hong, Nan Ma, Yafang Cheng, Hang Su, and Meinrat O. Andreae
Atmos. Chem. Phys., 23, 9993–10014, https://doi.org/10.5194/acp-23-9993-2023, https://doi.org/10.5194/acp-23-9993-2023, 2023
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In this work, with an optimized particle mass size distribution, we captured observed aerosol optical depth (AOD) and coarse aerosol concentrations over source and/or receptor regions well, demonstrating good performance in simulating export of African dust toward the Amazon Basin. In addition to factors controlling the transatlantic transport of African dust, the study investigated the impact of African dust over the Amazon Basin, including the nutrient inputs associated with dust deposition.
Athanasios Tsikerdekis, Otto P. Hasekamp, Nick A. J. Schutgens, and Qirui Zhong
Atmos. Chem. Phys., 23, 9495–9524, https://doi.org/10.5194/acp-23-9495-2023, https://doi.org/10.5194/acp-23-9495-2023, 2023
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Aerosols are tiny particles of different substances (species) that can be emitted into the atmosphere by natural processes or by anthropogenic activities. However, the actual aerosol emission amount per species is highly uncertain. Thus in this work we correct the aerosol emissions used to drive a global aerosol–climate model using satellite observations through a process called data assimilation. These more accurate aerosol emissions can lead to a more accurate weather and climate prediction.
Chandrakala Bharali, Mary Barth, Rajesh Kumar, Sachin D. Ghude, Vinayak Sinha, and Baerbel Sinha
EGUsphere, https://doi.org/10.5194/egusphere-2023-1686, https://doi.org/10.5194/egusphere-2023-1686, 2023
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This study examines the role of atmospheric aerosols in winter fog over the Indo-Gangetic Plains of India using the WRF-Chem model. The increase in RH with aerosol-radiation feedback (ARF) is found to be important for fog formation as it promoted the growth of aerosol and increased aerosol activation in the polluted environment. ARF and aqueous phase chemistry affected the timing of fog formation by ~1–2 hours and the fog intensity by modulating the meteorology and aerosol concentration.
Jani Strömberg, Xiaoyu Li, Mona Kurppa, Heino Kuuluvainen, Liisa Pirjola, and Leena Järvi
Atmos. Chem. Phys., 23, 9347–9364, https://doi.org/10.5194/acp-23-9347-2023, https://doi.org/10.5194/acp-23-9347-2023, 2023
Short summary
Short summary
We conclude that with low wind speeds, solar radiation has a larger decreasing effect (53 %) on pollutant concentrations than aerosol processes (18 %). Additionally, our results showed that with solar radiation included, pollutant concentrations were closer to observations (−13 %) than with only aerosol processes (+98 %). This has implications when planning simulations under calm conditions such as in our case and when deciding whether or not simulations need to include these processes.
Junghwa Lee, Patric Seifert, Tempei Hashino, Maximilian Maahn, Fabian Senf, and Oswald Knoth
EGUsphere, https://doi.org/10.5194/egusphere-2023-1887, https://doi.org/10.5194/egusphere-2023-1887, 2023
Short summary
Short summary
Spectral-bin model simulations of an idealized supercooled stratiform cloud were performed with the AMPS model for variable CCN and INP concentrations. We performed radar forward simulations with PAMTRA to transfer the simulations into radar observational space. The derived radar reflectivity factors were compared to observational studies of stratiform mixed-phase clouds. These studies report a similar response of the radar reflectivity factor to aerosol perturbations as we found in our study.
Guanyu Liu, Jing Li, and Tong Ying
Atmos. Chem. Phys., 23, 9217–9228, https://doi.org/10.5194/acp-23-9217-2023, https://doi.org/10.5194/acp-23-9217-2023, 2023
Short summary
Short summary
Fires in Australia are positively correlated with the El Niño–Southern Oscillation (ENSO). However, the correlation between ENSO and the Australian Fire Weather Index (FWI) increases from 0.17 to 0.70 when the Atlantic Multidecadal Oscillation (AMO) shifts from a negative to positive phase. This is explained by the teleconnection effect through which the warmer AMO generates Rossby wave trains and results in high pressures and a weather condition conducive to wildfires.
Zhiqiang Zhang, Ying Li, Haiyan Ran, Junling An, Yu Qu, Wei Zhou, Weiqi Xu, Weiwei Hu, Hongbin Xie, Zifa Wang, Yele Sun, and Manabu Shiraiwa
EGUsphere, https://doi.org/10.5194/egusphere-2023-1444, https://doi.org/10.5194/egusphere-2023-1444, 2023
Short summary
Short summary
Secondary organic aerosols (SOA) can exist in liquid, semi-solid or amorphous solid states, which are rarely accounted for in current chemical transport models. We predict the phase state of SOA particles over China and find that in the northwestern China SOA particles are mostly highly viscous or glassy solid. Our results indicate that the particle phase state should be considered in SOA formation in chemical transport models for more accurate prediction of SOA mass concentrations.
Leighton A. Regayre, Lucia Deaconu, Daniel P. Grosvenor, David M. H. Sexton, Christopher Symonds, Tom Langton, Duncan Watson-Paris, Jane P. Mulcahy, Kirsty J. Pringle, Mark Richardson, Jill S. Johnson, John W. Rostron, Hamish Gordon, Grenville Lister, Philip Stier, and Ken S. Carslaw
Atmos. Chem. Phys., 23, 8749–8768, https://doi.org/10.5194/acp-23-8749-2023, https://doi.org/10.5194/acp-23-8749-2023, 2023
Short summary
Short summary
Aerosol forcing of Earth’s energy balance has persisted as a major cause of uncertainty in climate simulations over generations of climate model development. We show that structural deficiencies in a climate model are exposed by comprehensively exploring parametric uncertainty and that these deficiencies limit how much the model uncertainty can be reduced through observational constraint. This provides a future pathway towards building models with greater physical realism and lower uncertainty.
Cited articles
Abdelkader, M., Metzger, S., Steil, B., Klingmueller, K., Tost, H., Pozzer,
A.,
Stenchikov, G., Barrie, L., and Lelieveld, J.: Sensitivity of transatlantic
dust transport to chemical aging and related atmospheric processes, Atmos.
Chem. Phys., 17, 3799–3821, https://doi.org/10.5194/acp-17-3799-2017, 2017. a, b, c, d, e, f, g
Ackermann, I. J., Hass, H., Memmesheimer, M., Ebel, A., Binkowski, F. S., and
Shankar, U.: Modal aerosol dynamics model for Europe, Atmos. Environ., 32,
2981–2999, https://doi.org/10.1016/S1352-2310(98)00006-5, 1998. a
Ahmadov, R. and Kazil, J.: Aerosol modeling with WRF-Chem, Tutorial
WRF-Chem Tutorial, CU CIRES and NOAA Earth System Research Laboratory,
https://ruc.noaa.gov/wrf/wrf-chem/wrf_tutorial_2018/Aerosols.pdf, last access: 23 November 2018. a
Astitha, M., Lelieveld, J., Abdel Kader, M., Pozzer, A., and de Meij, A.:
Parameterization of dust emissions in the global atmospheric
chemistry-climate model EMAC: impact of nudging and soil properties, Atmos.
Chem. Phys., 12, 11057–11083, https://doi.org/10.5194/acp-12-11057-2012, 2012. a, b
Bauer, S. E., Koch, D., Unger, N., Metzger, S. M., Shindell, D. T., and
Streets, D. G.: Nitrate aerosols today and in 2030: a global simulation
including aerosols and tropospheric ozone, Atmos. Chem. Phys., 7, 5043–5059,
https://doi.org/10.5194/acp-7-5043-2007,
2007a. a, b
Bauer, S. E., Mishchenko, M. I., Lacis, A. A., Zhang, S., Perlwitz, J., and
Metzger, S. M.: Do sulfate and nitrate coatings on mineral dust have
important effects on radiative properties and climate modeling?, J. Geophys.
Res., 112, 1–9, https://doi.org/10.1029/2005JD006977,
2007b. a, b
Bessagnet, B., Hodzic, A., Vautard, R., Beekmann, M., Cheinet, S., Honoré, C.,
Liousse, C., and Rouil, L.: Aerosol modeling with CHIMERE – preliminary
evaluation at the continental scale, Atmos. Environ., 38, 2803–2817,
https://doi.org/10.1016/j.atmosenv.2004.02.034, 2004. a
Bian, H., Chin, M., Hauglustaine, D. A., Schulz, M., Myhre, G., Bauer, S. E.,
Lund, M. T., Karydis, V. A., Kucsera, T. L., Pan, X., Pozzer, A., Skeie,
R. B., Steenrod, S. D., Sudo, K., Tsigaridis, K., Tsimpidi, A. P., and Tsyro,
S. G.: Investigation of global particulate nitrate from the AeroCom phase
III experiment, Atmos. Chem. Phys., 17, 12911–12940,
https://doi.org/10.5194/acp-17-12911-2017, 2017. a, b
Binkowski, F. S. and Shankar, U.: The Regional Particulate Matter
Model: 1. Model description and preliminary results, J. Geophys. Res.,
100, 26191, https://doi.org/10.1029/95JD02093, 1995. a
Bruehl, C., Lelieveld, J., Crutzen, P. J., and Tost, H.: The role of carbonyl
sulphide as a source of stratospheric sulphate aerosol and its impact on
climate, Atmos. Chem. Phys., 12, 1239–1253, https://doi.org/10.5194/acp-12-1239-2012,
2012. a
Carlton, A. G. and Turpin, B. J.: Particle partitioning potential of organic
compounds is highest in the Eastern US and driven by anthropogenic water,
Atmos. Chem. Phys., 13, 10203–10214, https://doi.org/10.5194/acp-13-10203-2013, 2013. a
Darmenov, A., da Silva, A., Colarco, P., Gelaro, R., Todling, R., Bian, H.,
Longo, K., Castellanos, P., Nielsen, E., Buchard-Marchant, V., Randles, C.,
and Keller, C.: NASA Update GEOS-5 Model and Data Assimilation
System: Aerosols and Clouds prsented at the International
Cooperative for Aerosol Prediction (ICAP/AEROCAST) “Lidar Data
and its use in Model Verification and Data Assimilation”, July
12-14, 2016, College Park, MD, USA,
http://icap.atmos.und.edu/ICAP8/Day1/Darmenov_TuesdayPM.pdf,
2016. a
de Meij, A., Krol, M., Dentener, F., Vignati, E., Cuvelier, C., and Thunis, P.:
The sensitivity of aerosol in Europe to two different emission inventories
and temporal distribution of emissions, Atmos. Chem. Phys., 6, 4287–4309,
https://doi.org/10.5194/acp-6-4287-2006, 2006. a
de Meij, A., Pozzer, A., Pringle, K., Tost, H., and Lelieveld, J.: EMAC model
evaluation and analysis of atmospheric aerosol properties and distribution
with a focus on the Mediterranean region, Atmos. Res., 114/115, 38–69,
https://doi.org/10.1016/j.atmosres.2012.05.014, 2012. a
de Meij, A.: Uncertainties in modelling the spatial and temporal variations
in aerosol concentrations, PhD Thesis, Technische Universiteit Eindhoven, 1–216 , https://doi.org/10.6100/IR642890, 2009. a
Dentener, F., Williams, J., and Metzger, S.: Aqueous Phase Reaction of
HNO4: The Impact on Tropospheric Chemistry, J. Atmos. Chem., 41,
109–134, https://doi.org/10.1023/A:1014233910126, 2002. a, b
Doering, U. M., Monni, S., Pagliari, V., Orlandini, L., van Aardenne, J., and
SanMartin, F.: CIRCE report D8.1.1: Emission inventory for the past
period 1990–2005 on 0.1 × 0.1 grid, Tech. rep., Project FP6: 6.3 No.
036961, Joint Research Centre (JRC),http://edgar.jrc.ec.europa.eu/overview.php?v=432_GHG&SECURE=123 (last access: 23 November 2018), 2009a. a
Doering, U. M., van Aardenne, J., Monni, S., Pagliari, V., Orlandini, L., and
SanMartin, F.: CIRCE report D8.1.2 – Evaluation emission database
1990–2005, Tech. rep., Project FP6: 6.3 No. 036961, Joint Research
Centre (JRC),http://edgar.jrc.ec.europa.eu/overview.php?v=432_GHG&SECURE=123 (last access: 23 November 2018), 2009b. a
Doering, U. M., van Aardenne, J., Monni, S., Pagliari, V., Orlandini, L., and
SanMartin, F.: CIRCE report D8.1.3 – Update of grid- ded emission
inventories, addition of period 1990–1999 to 2000–2005 dataset, Tech.
rep., Project FP6: 6.3 No. 036961, Joint Research Centre (JRC),
http://edgar.jrc.ec.europa.eu/overview.php?v=432_GHG&SECURE=123 (last access: 23 November 2018), 2009c. a
Environ, R.: User's guide comprehensive air quality model with
extensions version 6.40, Tech. rep., Ramboll, 773 San Marin Dr., Suite
2115, Novato, CA 94945, USA, 773 San Marin Drive, Suite 2115 Novato,
California, 94998, https://www.ramboll.com, http://www.camx.com, 2016. a
Fountoukis, C. and Nenes, A.: ISORROPIA II: a computationally efficient
thermodynamic equilibrium model for
Ganzeveld, L. N., van Aardenne, J. A., Butler, T. M., Lawrence, M. G.,
Metzger, S. M., Stier, P., Zimmermann, P., and Lelieveld, J.: Technical Note:
Anthropogenic and natural offline emissions and the online EMissions and dry
DEPosition submodel EMDEP of the Modular Earth Submodel system (MESSy),
Atmos. Chem. Phys. Discuss., 6, 5457–5483,
https://doi.org/10.5194/acpd-6-5457-2006, 2006. a
Intergovernmental Panel on Climate Change: Climate Change 2013 – The
Physical Science Basis: Working Group I Contribution to the
Fifth Assessment Report of the Intergovernmental Panel on Climate
Change, Cambridge University Press, Cambridge,
https://doi.org/10.1017/CBO9781107415324, 2014. a
Jeuken, A. B. M., Siegmund, P. C., Heijboer, L. C., Feichter, J., and
Bengtsson, L.: On the potential of assimilating meteorological analyses in a
global climate model for the purpose of model validation, J. Geophys. Res.-Atmos., 101, 16939–16950, https://doi.org/10.1029/96JD01218, 1996. a
Joeckel, P., Sander, R., Kerkweg, A., Tost, H., and Lelieveld, J.: Technical
Note: The Modular Earth Submodel System (MESSy) – a new
approach towards Earth System Modeling, Atmos. Chem. Phys., 5,
433–444, https://doi.org/10.5194/acp-5-433-2005, 2005. a, b
Joeckel, P., Tost, H., Pozzer, A., Bruehl, C., Buchholz, J., Ganzeveld, L.,
Hoor, P., Kerkweg, A., Lawrence, M., Sander, R., Steil, B., Stiller, G.,
Tanarhte, M., Taraborrelli, D., van Aardenne, J., and Lelieveld, J.: The
atmospheric chemistry general circulation model ECHAM5/MESSy1: consistent
simulation of ozone from the surface to the mesosphere, Atmos. Chem. Phys.,
6, 5067–5104, https://doi.org/10.5194/acp-6-5067-2006,
2006a. a, b, c, d
Joeckel, P., Tost, H., Pozzer, A., Bruehl, C., Buchholz, J., Ganzeveld, L.,
Hoor, P., Kerkweg, A., Lawrence, M. G., Metzger, S., Sander, R., Steil, B.,
Stiller, G., Tanarhte, M., Taraborrelli, D., van Aardenne, J., and Lelieveld,
J.: Evaluation of the atmospheric chemistry general circulation model
ECHAM5/MESSy1,
http://adsabs.harvard.edu/abs/2006AGUFM.A51B0073J (last access: 23 November 2018),
2006AGUFM.A51B0073J, Provided by the SAO/NASA Astrophysics Data System,
2006b. a, b
Joeckel, P., Kerkweg, A., Buchholz-Dietsch, J., Tost, H., Sander, R., and
Pozzer, A.: Technical Note: Coupling of chemical processes with the
Modular Earth Submodel System (MESSy) submodel TRACER, Atmos.
Chem. Phys., 8, 1677–1687, https://doi.org/10.5194/acp-8-1677-2008, 2008. a, b
Joeckel, P., Kerkweg, A., Pozzer, A., Sander, R., Tost, H., Riede, H.,
Baumgaertner, A., Gromov, S., and Kern, B.: Development cycle 2 of the
Modular Earth Submodel System (MESSy2), Geosci. Model Dev., 3,
717–752, https://doi.org/10.5194/gmd-3-717-2010, 2010. a, b, c
Joeckel, P., Tost, H., Pozzer, A., Kunze, M., Kirner, O., Brenninkmeijer, C.
A. M., Brinkop, S., Cai, D. S., Dyroff, C., Eckstein, J., Frank, F., Garny,
H., Gottschaldt, K.-D., Graf, P., Grewe, V., Kerkweg, A., Kern, B., Matthes,
S., Mertens, M., Meul, S., Neumaier, M., Nuetzel, M., Oberländer-Hayn, S.,
Ruhnke, R., Runde, T., Sander, R., Scharffe, D., and Zahn, A.: Earth System
Chemistry integrated Modelling (ESCiMo) with the Modular Earth
Submodel System (MESSy) version 2.51, Geosci. Model Dev., 9,
1153–1200, https://doi.org/10.5194/gmd-9-1153-2016, 2016. a, b
Kaiser, J. C., Hendricks, J., Righi, M., Riemer, N., Zaveri, R. A., Metzger,
S., and Aquila, V.: The MESSy aerosol submodel MADE3 (v2.0b): description
and a box model test, Geosci. Model Dev., 7, 1137–1157,
https://doi.org/10.5194/gmd-7-1137-2014, 2014. a
Karydis, V. A., Tsimpidi, A. P., Pozzer, A., Astitha, M., and Lelieveld, J.:
Effects of mineral dust on global atmospheric nitrate concentrations, Atmos.
Chem. Phys., 16, 1491–1509, https://doi.org/10.5194/acp-16-1491-2016, 2016. a
Kerkweg, A., Buchholz, J., Ganzeveld, L., Pozzer, A., Tost, H., and Joeckel,
P.: Technical Note: An implementation of the dry removal processes DRY
DEPosition and SEDImentation in the Modular Earth Submodel System
(MESSy), Atmos. Chem. Phys., 6, 4617–4632, https://doi.org/10.5194/acp-6-4617-2006,
2006a. a
Kerkweg, A., Sander, R., Tost, H., and Joeckel, P.: Technical note:
Implementation of prescribed (OFFLEM), calculated (ONLEM), and
pseudo-emissions (TNUDGE) of chemical species in the Modular Earth
Submodel System (MESSy), Atmos. Chem. Phys., 6, 3603–3609,
https://doi.org/10.5194/acp-6-3603-2006,
2006b. a
Klingmueller, K., Steil, B., Bruehl, C., Tost, H., and Lelieveld, J.:
Sensitivity of aerosol radiative effects to different mixing assumptions in
the AEROPT 1.0 submodel of the EMAC atmospheric-chemistry-climate
model, Geosci. Model Dev., 7, 2503–2516, https://doi.org/10.5194/gmd-7-2503-2014, 2014. a
Klingmueller, K., Pozzer, A., Metzger, S., Stenchikov, G. L., and Lelieveld,
J.: Aerosol optical depth trend over the Middle East, Atmos. Chem. Phys.,
16, 5063–5073, https://doi.org/10.5194/acp-16-5063-2016, 2016. a
Klingmueller, K., Metzger, S., Abdelkader, M., Karydis, V. A., Stenchikov,
G. L., Pozzer, A., and Lelieveld, J.: Revised mineral dust emissions in the
atmospheric chemistry-climate model EMAC (MESSy 2.52 DU_Astitha1
KKDU2017 patch), Geosci. Model Dev., 11, 989–1008,
https://doi.org/10.5194/gmd-11-989-2018, 2018. a
Koo, B., Wilson, G. M., Morris, R. E., Dunker, A. M., and Yarwood, G.:
Comparison of Source Apportionment and Sensitivity Analysis in a
Particulate Matter Air Quality Model, Environ. Sci. Technol., 43,
6669–6675, https://doi.org/10.1021/es9008129, 2009. a
Koo, B., Metzger, S., Emery, C., Wilson, G., and Yarwood, G.: Comparing the
ISORROPIA and EQSAM Aerosol Thermodynamic Options in CAMx – ITM
2018 – 36th international technical meeting on air pollution
modelling and its application, 14–18 May 2018, the Lord
Elgin Hotel, Ottawa, Canada, (in conjunction with the
annual WMO-Gurme Meeting), https://itm2018.vito.be,
[1] Ramboll, 773 San Marin Dr., Suite 2115, Novato, CA 94945, USA, [2]
ResearchConcepts io GmbH, Freiburg im Breisgau, Germany, 2018. a
Lac, C., Chaboureau, J.-P., Masson, V., Pinty, J.-P., Tulet, P., Escobar, J.,
Leriche, M., Barthe, C., Aouizerats, B., Augros, C., Aumond, P., Auguste, F.,
Bechtold, P., Berthet, S., Bieilli, S., Bosseur, F., Caumont, O., Cohard,
J.-M., Colin, J., Couvreux, F., Cuxart, J., Delautier, G., Dauhut, T.,
Ducrocq, V., Filippi, J.-B., Gazen, D., Geoffroy, O., Gheusi, F., Honnert,
R., Lafore, J.-P., Lebeaupin Brossier, C., Libois, Q., Lunet, T., Mari, C.,
Maric, T., Mascart, P., Mogé, M., Molinié, G., Nuissier, O., Pantillon, F.,
Peyrillé, P., Pergaud, J., Perraud, E., Pianezze, J., Redelsperger, J.-L.,
Ricard, D., Richard, E., Riette, S., Rodier, Q., Schoetter, R., Seyfried, L.,
Stein, J., Suhre, K., Taufour, M., Taufour, M., Thouron, O., Turner, S.,
Verrelle, A., Vié, B., Visentin, F., Vionnet, V., and Wautelet, P.: Overview
of the Meso-NH model version 5.4 and its applications, Geosci. Model Dev.
Discussions, pp. 1–66, https://doi.org/10.5194/gmd-2017-297, 2018. a
Lauer, A., Hendricks, J., Ackermann, I., Schell, B., Hass, H., and Metzger,
S.:
Simulating aerosol microphysics with the ECHAM/MADE GCM – Part
I: Model description and comparison with observations, Atmos. Chem.
Phys., 5, 3251–3276, https://doi.org/10.5194/acp-5-3251-2005, 2005. a, b
Lauer, A., Eyring, V., Hendricks, J., Joeckel, P., and Lohmann, U.: Global
model simulations of the impact of ocean-going ships on aerosols, clouds, and
the radiation budget, Atmos. Chem. Phys., 7, 5061–5079,
https://doi.org/10.5194/acp-7-5061-2007, 2007. a
Lelieveld, J., Bruehl, C., Joeckel, P., Steil, B., Crutzen, P. J., Fischer,
H.,
Giorgetta, M. A., Hoor, P., Lawrence, M. G., Sausen, R., and Tost, H.:
Stratospheric dryness: model simulations and satellite observations, Atmos.
Chem. Phys., 7, 1313–1332, https://doi.org/10.5194/acp-7-1313-2007, 2007. a
Liao, H.: Global impacts of gas-phase chemistry-aerosol interactions on
direct
radiative forcing by anthropogenic aerosols and ozone, J. Geophys. Res.,
110, 1–22,
https://doi.org/10.1029/2005JD005907, 2005. a
Luo, C., Zender, C. S., Bian, H., and Metzger, S.: Role of ammonia chemistry
and coarse mode aerosols in global climatological inorganic aerosol
distributions, Atmos. Environ., 41, 2510–2533,
https://doi.org/10.1016/j.atmosenv.2006.11.030, 2007. a
Manders, A., Ulft, B. v., Meijgaard, E. v., and Schaap, M.: Coupling of the air
quality model LOTOS-EUROS to the climate model RACMO, in: Coupling of
the air quality model LOTOS-EUROS to the climate model RACMO, Knowledge
for Climate Programme Office, Utrecht,
http://edepot.wur.nl/328070, oCLC: 911880649, 2011. a
Metzger, S., Dentener, F., Krol, M., Jeuken, A., and Lelieveld, J.:
Gas/aerosol
partitioning: 2. Global modeling results, J. Geophys. Res., 107, 1–23,
https://doi.org/10.1029/2001JD001103,
2002b. a, b, c
Metzger, S., Mihalopoulos, N., and Lelieveld, J.: Importance of mineral
cations
and organics in gas-aerosol partitioning of reactive nitrogen compounds: case
study based on MINOS results, Atmos. Chem. Phys., 6, 2549–2567,
https://doi.org/10.5194/acp-6-2549-2006, 2006. a, b, c, d
Metzger, S., Steil, B., Xu, L., Penner, J. E., and Lelieveld, J.: New
representation of water activity based on a single solute specific constant
to parameterize the hygroscopic growth of aerosols in atmospheric models,
Atmos. Chem. Phys., 12, 5429–5446, https://doi.org/10.5194/acp-12-5429-2012, 2012. a, b, c, d, e, f, g
Metzger, S., Steil, B., Abdelkader, M., Klingmueller, K., Xu, L., Penner,
J. E., Fountoukis, C., Nenes, A., and Lelieveld, J.: Aerosol water
parameterisation: a single parameter framework, Atmos. Chem. Phys., 16,
7213–7237, https://doi.org/10.5194/acp-16-7213-2016,
2016a. a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z
Metzger, S., Abdelkader, M., Klingmueller, K., Steil, B., and Lelieveld, J.:
Comparison of Metop PMAp Version 2 AOD Products using Model
Data, Final Report EUMETSAT ITT 15/210839, EUMETSAT, Max Planck Institute
for Chemistry, Department of Atmospheric Chemistry,
http://bit.ly/2Epxf9b (last access: 23 November 2018), 2016b. a, b, c, d, e, f, g
Monahan, E. C., Spiel, D. E., and Davidson, K. L.: A Model of Marine
Aerosol Generation Via Whitecaps and Wave Disruption, in: Oceanic
Whitecaps, edited by: Monahan, E. C. and Niocaill, G. M., Springer Netherlands, Dordrecht,vol. 2,
167–174,
https://doi.org/10.1007/978-94-009-4668-2_16, 1986. a
Myhre, G., Grini, A., and Metzger, S.: Modelling of nitrate and
ammonium-containing aerosols in presence of sea salt, Atmos. Chem. Phys., 6,
4809–4821, https://doi.org/10.5194/acp-6-4809-2006, 2006. a
Nguyen, T. K. V., Ghate, V. P., and Carlton, A. G.: Reconciling satellite
aerosol optical thickness and surface fine particle mass through aerosol
liquid water: ALW AND AOT, Geophys. Res. Lett., 43, 11903–11912,
https://doi.org/10.1002/2016GL070994, 2016. a
Pozzer, A., Joeckel, P., Sander, R., Williams, J., Ganzeveld, L., and
Lelieveld, J.: Technical Note: The MESSy-submodel AIRSEA calculating
the air-sea exchange of chemical species, Atmos. Chem. Phys., 6, 5435–5444,
https://doi.org/10.5194/acp-6-5435-2006, 2006. a
Pozzer, A., de Meij, A., Pringle, K. J., Tost, H., Doering, U. M., van
Aardenne, J., and Lelieveld, J.: Distributions and regional budgets of
aerosols and their precursors simulated with the EMAC chemistry-climate
model, Atmos. Chem. Phys., 12, 961–987, https://doi.org/10.5194/acp-12-961-2012, 2012. a, b, c
Pozzer, A., de Meij, A., Yoon, J., Tost, H., Georgoulias, A. K., and Astitha,
M.: AOD trends during 2001–2010 from observations and model simulations,
Atmos. Chem. Phys., 15, 5521–5535, https://doi.org/10.5194/acp-15-5521-2015, 2015. a, b, c
Pozzer, A., Tsimpidi, A. P., Karydis, V. A., de Meij, A., and Lelieveld, J.:
Impact of agricultural emission reductions on fine-particulate matter and
public health, Atmos. Chem. Phys., 17, 12813–12826,
https://doi.org/10.5194/acp-17-12813-2017, 2017. a, b
Pringle, K. J., Tost, H., Message, S., Steil, B., Giannadaki, D., Nenes, A.,
Fountoukis, C., Stier, P., Vignati, E., and Lelieveld, J.: Description and
evaluation of GMXe: a new aerosol submodel for global simulations (v1),
Geosci. Model Dev., 3, 391–412, https://doi.org/10.5194/gmd-3-391-2010,
2010a. a, b
Pringle, K. J., Tost, H., Metzger, S., Steil, B., Giannadaki, D., Nenes, A.,
Fountoukis, C., Stier, P., Vignati, E., and Lelieveld, J.: Corrigendum to
”Description and evaluation of GMXe: a new aerosol submodel for global
simulations (v1)” published in Geosci. Model Dev., 3, 391–412, 2010,
Geosci. Model Dev., 3, 413–413, https://doi.org/10.5194/gmd-3-413-2010,
2010b. a, b
Sander, R., Kerkweg, A., Joeckel, P., and Lelieveld, J.: Technical note:
The
new comprehensive atmospheric chemistry module MECCA, Atmos. Chem. Phys.,
5, 445–450, https://doi.org/10.5194/acp-5-445-2005, 2005. a
Saxena, P., Belle Hudischewskyj, A., Seigneur, C., and Seinfeld, J. H.: A
comparative study of equilibrium approaches to the chemical characterization
of secondary aerosols, Atmos. Environ., 20, 1471–1483,
https://doi.org/10.1016/0004-6981(86)90019-3,
1986. a, b
Schell, B., Ackermann, I. J., Hass, H., Binkowski, F. S., and Ebel, A.:
Modeling the formation of secondary organic aerosol within a comprehensive
air quality model system, J. Geophys. Res.-Atmos, 106,
28275–28293, https://doi.org/10.1029/2001JD000384, 2001. a
Simpson, D., Fagerli, H., Jonson, J. E., Tsyro, S., Wind, P., and Tuovinen,
J.-P.: Transboundary Acidification, Eutrophication and Ground Level
Ozone in Europe. PART I Unified EMEP Model Description.,
EMEP Status Report 2003 EMEP Report 1/2003, Norwegian Meteorological
Institute,
http://www.emep.int/publ/reports/2003/emep_report_1_part1_2003.pdf, 2003.
a
Simpson, D., Benedictow, A., Berge, H., Bergstroem, R., Emberson, L. D.,
Fagerli, H., Flechard, C. R., Hayman, G. D., Gauss, M., Jonson, J. E.,
Jenkin, M. E., Nyíri, A., Richter, C., Semeena, V. S., Tsyro, S., Tuovinen,
J.-P., Valdebenito, A., and Wind, P.: The EMEP MSC-W chemical transport
model – technical description, Atmos. Chem. Phys., 12, 7825–7865,
https://doi.org/10.5194/acp-12-7825-2012, 2012. a, b
Tørseth, K., Aas, W., Breivik, K., Fjæraa, A. M., Fiebig, M.,
Hjellbrekke,
A. G., Lund Myhre, C., Solberg, S., and Yttri, K. E.: Introduction to the
European Monitoring and Evaluation Programme (EMEP) and observed
atmospheric composition change during 1972–2009, Atmos. Chem. Phys.,
12, 5447–5481, https://doi.org/10.5194/acp-12-5447-2012, 2012. a
Tost, H., Joeckel, P., Kerkweg, A., Sander, R., and Lelieveld, J.: Technical
note: A new comprehensive SCAVenging submodel for global atmospheric
chemistry modelling, Atmos. Chem. Phys., 6, 565–574,
https://doi.org/10.5194/acp-6-565-2006,
2006a. a
Tost, H., Joeckel, P., and Lelieveld, J.: Influence of different convection
parameterisations in a GCM, Atmos. Chem. Phys., 6, 5475–5493,
https://doi.org/10.5194/acp-6-5475-2006,
2006b. a, b
Tost, H., Joeckel, P., and Lelieveld, J.: Lightning and convection
parameterisations – uncertainties in global modelling, Atmos. Chem.
Phys., 7, 4553–4568, https://doi.org/10.5194/acp-7-4553-2007, 2007. a, b
Trebs, I., Metzger, S., Meixner, F. X., Helas, G., Hoffer, A., Rudich, Y.,
Falkovich, A. H., Moura, M. A. L., da Silva Jr., R. S., Artaxo, P., Slanina,
J., and Andreae, M. O.: The NH
Tsigaridis, K., Krol, M., Dentener, F. J., Balkanski, Y., Lathière, J.,
Metzger, S., Hauglustaine, D. A., and Kanakidou, M.: Change in global aerosol
composition since preindustrial times, Atmos. Chem. Phys., 6, 5143–5162,
https://doi.org/10.5194/acp-6-5143-2006, 2006. a
Van Meijgaard, E. and KNMI.: The KNMI regional atmospheric climate model
RACMO version 2.1., Koninklijk Nederlands Meteorologisch Instituut, De
Bilt, 2008. a
von Kuhlmann, R., Lawrence, M. G., Crutzen, P. J., and Rasch, P. J.: A model
for studies of tropospheric ozone and nonmethane hydrocarbons: Model
description and ozone results: MATCH-MPIC DESCRIPTION AND OZONE
RESULTS, J. Geophys. Res.-Atmos., 108, 1–22,
https://doi.org/10.1029/2002JD002893, 2003. a
Zhang, Y., Sartelet, K., Wu, S.-Y., and Seigneur, C.: Application of
WRF/Chem-MADRID and WRF/Polyphemus in Europe – Part 1:
Model description, evaluation of meteorological predictions, and
aerosol–meteorology interactions, Atmos. Chem. Phys., 13, 6807–6843,
https://doi.org/10.5194/acp-13-6807-2013, 2013. a
Short summary
This paper discusses the importance of aerosol water for aerosol optical depth calculations using a long-term evaluation of the global chemistry climate and Earth system model EMAC through a comparison of EQSAM4clim and ISORROPIA II with observations at climate timescales. Sensitivity studies with different levels of chemical aging and associated water uptake demonstrate the importance of aerosol water for climate modeling studies.
This paper discusses the importance of aerosol water for aerosol optical depth calculations...
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