Articles | Volume 21, issue 7
Atmos. Chem. Phys., 21, 5377–5391, 2021
https://doi.org/10.5194/acp-21-5377-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 21, 5377–5391, 2021
https://doi.org/10.5194/acp-21-5377-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
07 Apr 2021
Research article
| 07 Apr 2021
Long-term variation in aerosol lidar ratio in Shanghai based on Raman lidar measurements
Tongqiang Liu et al.
Related authors
No articles found.
Changqin Yin, Jianming Xu, Wei Gao, Liang Pan, Yixuan Gu, Qingyan Fu, and Fan Yang
EGUsphere, https://doi.org/10.5194/egusphere-2022-782, https://doi.org/10.5194/egusphere-2022-782, 2022
Short summary
Short summary
The PM2.5 at the top of 632 m high Shanghai Tower were found higher than surface from June to October as results of unexpected larger PM2.5 levels during early to middle afternoon at Shanghai Tower. We suppose the significant chemical production of secondary species existed in mid-upper planetary boundary layer. In addition, we found high nitrate concentration at the tower site for both daytime and nighttime winter, implying efficient gas-phase and heterogeneous formation.
Yijing Chen, Qianli Ma, Weili Lin, Xiaobin Xu, Jie Yao, and Wei Gao
Atmos. Chem. Phys., 20, 15969–15982, https://doi.org/10.5194/acp-20-15969-2020, https://doi.org/10.5194/acp-20-15969-2020, 2020
Short summary
Short summary
CO is one of the major air pollutants. Our study showed that the long-term CO levels at a background station in one of the most developed areas of China decreased significantly and verified that this downward trend was attributed to the decrease in anthropogenic emissions, which indicated that the adopted pollution control policies were effective. Also, this decrease has an implication for the atmospheric chemistry considering the negative correlation between CO levels and OH radical's lifetime.
Yixuan Gu, Fengxia Yan, Jianming Xu, Yuanhao Qu, Wei Gao, Fangfang He, and Hong Liao
Atmos. Chem. Phys., 20, 14361–14375, https://doi.org/10.5194/acp-20-14361-2020, https://doi.org/10.5194/acp-20-14361-2020, 2020
Short summary
Short summary
High levels and statistically insignificant changes of ozone are detected at a remote monitoring site on Sheshan Island in Shanghai, China, from 2012 to 2017; 6-year observations suggest regional transport exerted minimum influence on the offshore oceanic air in September and October. Both city plumes and oceanic air inflows could contribute to ozone enhancements in Shanghai, and the latter are found to lead to 20–30 % increases in urban ozone concentrations based on WRF-Chem simulations.
Feng Zhang, Qiu-Run Yu, Jia-Li Mao, Chen Dan, Yanyu Wang, Qianshan He, Tiantao Cheng, Chunhong Chen, Dongwei Liu, and Yanping Gao
Atmos. Chem. Phys., 20, 11799–11808, https://doi.org/10.5194/acp-20-11799-2020, https://doi.org/10.5194/acp-20-11799-2020, 2020
Short summary
Short summary
In this work, we make the three main contributions. (1) We reveal the remarkable differences in the geographical distributions of cirrus over the Tibetan Plateau regarding the cloud top height. (2) The orography, gravity wave, and deep convection determine the formation of cirrus with a cloud top below 9, at 9–12, and above 12 km, respectively. (3) It is the first time the contributions of the Tibetan Plateau to the presence of cirrus on a regional scale are discussed.
Yanyu Wang, Rui Lyu, Xin Xie, Ze Meng, Meijin Huang, Junshi Wu, Haizhen Mu, Qiu-Run Yu, Qianshan He, and Tiantao Cheng
Atmos. Meas. Tech., 13, 575–592, https://doi.org/10.5194/amt-13-575-2020, https://doi.org/10.5194/amt-13-575-2020, 2020
Short summary
Short summary
A satellite-based method for clear-sky aerosol direct radiative forcing (ADRF) retrieval and spatiotemporal characteristics of ADRF in eastern China were displayed during 2000–2016. Our analysis shows aerosols have a strong cooling effect at the surface, and the changes of ADRF are closely related to the changes of AOD with the development of economic growth and rapid urbanization in eastern China.
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
Short summary
Short summary
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.
Jianming Xu, Xuexi Tie, Wei Gao, Yanfen Lin, and Qingyan Fu
Atmos. Chem. Phys., 19, 9017–9035, https://doi.org/10.5194/acp-19-9017-2019, https://doi.org/10.5194/acp-19-9017-2019, 2019
Short summary
Short summary
The PM2.5 in China has decreased significantly in recent years as a result of the implementation of the Chinese Clean Air Action Plan in 2013, while the O3 pollution is getting worse, especially in megacities. The work aims to better understand the elevated O3 pollution in the megacity of Shanghai, China, and its response to emission changes, which is important for developing an effective emission control strategy in the future.
Qianshan He, Jianzhong Ma, Xiangdong Zheng, Xiaolu Yan, Holger Vömel, Frank G. Wienhold, Wei Gao, Dongwei Liu, Guangming Shi, and Tiantao Cheng
Atmos. Chem. Phys., 19, 8399–8406, https://doi.org/10.5194/acp-19-8399-2019, https://doi.org/10.5194/acp-19-8399-2019, 2019
Short summary
Short summary
An enhanced aerosol layer in the upper troposphere--lower stratosphere was observed by a COBALD over the Tibetan Plateau, in the summer of 2014. The color index of the enhanced aerosol layer indicates the prevalence of dominant fine particles with a mode radius < 0.1 μm. Unlike the very small particles at low relative humidity (RHi < 40%), the relatively large particles in the aerosol layer were generally very hydrophilic as their size increased dramatically with relative humidity.
Yi Tang, Shuxiao Wang, Qingru Wu, Kaiyun Liu, Long Wang, Shu Li, Wei Gao, Lei Zhang, Haotian Zheng, Zhijian Li, and Jiming Hao
Atmos. Chem. Phys., 18, 8279–8291, https://doi.org/10.5194/acp-18-8279-2018, https://doi.org/10.5194/acp-18-8279-2018, 2018
Short summary
Short summary
In this study, 3-year measurements of atmospheric Hg were carried out at a rural site in East China. A significant downward trend was observed during the sampling period. This study used a new approach that considers both cluster frequency and the Hg concentration associated with each cluster, and we calculated that atmospheric Hg from the whole region of China has caused a 70 % decline of GEM concentration at the Chongming monitoring site due to strict air pollution control policies in China.
Related subject area
Subject: Aerosols | Research Activity: Remote Sensing | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
Circular polarization in atmospheric aerosols
Spatiotemporal continuous estimates of daily 1 km PM2.5 from 2000 to present under the Tracking Air Pollution in China (TAP) framework
Robust evidence for reversal of the trend in aerosol effective climate forcing
Simultaneous retrievals of biomass burning aerosols and trace gases from the ultraviolet to near-infrared over northern Thailand during the 2019 pre-monsoon season
A decadal assessment of the climatology of aerosol and cloud properties over South Africa
Aerosol characterisation in the subtropical eastern North Atlantic region using long-term AERONET measurements
Long-range transport of Asian dust to the Arctic: identification of transport pathways, evolution of aerosol optical properties, and impact assessment on surface albedo changes
Canadian and Alaskan wildfire smoke particle properties, their evolution, and controlling factors, from satellite observations
Evaluation of aerosol optical depths and clear-sky radiative fluxes of the CERES Edition 4.1 SYN1deg data product
Arctic spring and summertime aerosol optical depth baseline from long-term observations and model reanalyses – Part 1: Climatology and trend
Vertical structure of biomass burning aerosol transported over the southeast Atlantic Ocean
Arctic spring and summertime aerosol optical depth baseline from long-term observations and model reanalyses – Part 2: Statistics of extreme AOD events, and implications for the impact of regional biomass burning processes
Aerosol atmospheric rivers: climatology, event characteristics, and detection algorithm sensitivities
Dust transport and advection measurement with spaceborne lidars ALADIN and CALIOP and model reanalysis data
Record-breaking dust loading during two mega dust storm events over northern China in March 2021: aerosol optical and radiative properties and meteorological drivers
Wintertime Saharan dust transport towards the Caribbean: an airborne lidar case study during EUREC4A
Evaluation of aerosol number concentrations from CALIPSO with ATom airborne in situ measurements
Zonal variations in the vertical distribution of atmospheric aerosols over the Indian region and the consequent radiative effects
Global maps of aerosol single scattering albedo using combined CERES-MODIS retrieval
The characterization of long-range transported North American biomass burning plumes: what can a multi-wavelength Mie–Raman-polarization-fluorescence lidar provide?
Fluorescence lidar observations of wildfire smoke inside cirrus: a contribution to smoke–cirrus interaction research
A novel method of identifying and analysing oil smoke plumes based on MODIS and CALIPSO satellite data
Pollen observations at four EARLINET stations during the ACTRIS-COVID-19 campaign
Identifying chemical aerosol signatures using optical suborbital observations: how much can optical properties tell us about aerosol composition?
Quantification of the dust optical depth across spatiotemporal scales with the MIDAS global dataset (2003–2017)
South American regional smoke plume in recent years: main sources and impact on solar radiation focusing on the Pantanal 2020 biomass burning season
Aerosol radiative impact during the summer 2019 heatwave produced partly by an inter-continental Saharan dust outbreak – Part 2: Long-wave and net dust direct radiative effect
Comment on “Short-cut transport path for Asian dust directly to the Arctic: a case Study” by Huang et al. (2015) in Environ. Res. Lett.
Statistical validation of Aeolus L2A particle backscatter coefficient retrievals over ACTRIS/EARLINET stations on the Iberian Peninsula
Inferring iron-oxide species content in atmospheric mineral dust from DSCOVR EPIC observations
Mesoscale spatio-temporal variability of airborne lidar-derived aerosol properties in the Barbados region during EUREC4A
Long-term characterisation of the vertical structure of the Saharan Air Layer over the Canary Islands using lidar and radiosonde profiles: implications for radiative and cloud processes over the subtropical Atlantic Ocean
Observed slump of sea land breeze in Brisbane under the effect of aerosols from remote transport during 2019 Australian mega fire events
Measurement report: Vehicle-based multi-lidar observational study of the effect of meteorological elements on the three-dimensional distribution of particles in the western Guangdong–Hong Kong–Macao Greater Bay Area
Marine aerosol properties over the Southern Ocean in relation to the wintertime meteorological conditions
The spatiotemporal relationship between PM2.5 and aerosol optical depth in China: influencing factors and implications for satellite PM2.5 estimations using MAIAC aerosol optical depth
Measurement report: Characterization of the vertical distribution of airborne Pinus pollen in the atmosphere with lidar-derived profiles – a modeling case study in the region of Barcelona, NE Spain
Investigation of near-global daytime boundary layer height using high-resolution radiosondes: first results and comparison with ERA5, MERRA-2, JRA-55, and NCEP-2 reanalyses
Estimation of the vertical distribution of particle matter (PM2.5) concentration and its transport flux from lidar measurements based on machine learning algorithms
Relating geostationary satellite measurements of aerosol optical depth (AOD) over East Asia to fine particulate matter (PM2.5): insights from the KORUS-AQ aircraft campaign and GEOS-Chem model simulations
Three-dimensional climatology, trends, and meteorological drivers of global and regional tropospheric type-dependent aerosols: insights from 13 years (2007–2019) of CALIOP observations
Aerosol properties and aerosol–radiation interactions in clear-sky conditions over Germany
Global dust optical depth climatology derived from CALIOP and MODIS aerosol retrievals on decadal timescales: regional and interannual variability
Aerosol optical properties derived from POLDER-3/PARASOL (2005–2013) over the Western Mediterranean Sea – Part 2: Spatial distribution and temporal variability
Observation and modeling of the historic “Godzilla” African dust intrusion into the Caribbean Basin and the southern US in June 2020
Multi-dimensional satellite observations of aerosol properties and aerosol types over three major urban clusters in eastern China
Geometric estimation of volcanic eruption column height from GOES-R near-limb imagery – Part 1: Methodology
Geometric estimation of volcanic eruption column height from GOES-R near-limb imagery – Part 2: Case studies
Spatiotemporal changes in aerosol properties by hygroscopic growth and impacts on radiative forcing and heating rates during DISCOVER-AQ 2011
Estimating radiative forcing efficiency of dust aerosol based on direct satellite observations: case studies over the Sahara and Taklimakan Desert
Santiago Gassó and Kirk D. Knobelspiesse
Atmos. Chem. Phys., 22, 13581–13605, https://doi.org/10.5194/acp-22-13581-2022, https://doi.org/10.5194/acp-22-13581-2022, 2022
Short summary
Short summary
Atmospheric particles interact with light resulting in observable optical polarization. Thus, we can learn about their composition from space. New satellite sensor technology measures full polarization of reflected sunlight. This paper considers circular polarization, an overlooked category of polarization with distinctive features that could bring new insights. We review existing literature and make novel computations to consider this previously underappreciated category of polarization.
Qingyang Xiao, Guannan Geng, Shigan Liu, Jiajun Liu, Xia Meng, and Qiang Zhang
Atmos. Chem. Phys., 22, 13229–13242, https://doi.org/10.5194/acp-22-13229-2022, https://doi.org/10.5194/acp-22-13229-2022, 2022
Short summary
Short summary
We provided complete coverage PM2.5 concentrations at a 1-km resolution from 2000 to the present, carefully considering the significant changes in land use characteristics in China. This high-resolution PM2.5 data successfully revealed the local-scale PM2.5 variations. We noticed changes in PM2.5 spatial patterns in association with the clean air policies, with the pollution hotspots having transferred from urban centers to rural regions with limited air quality monitoring.
Johannes Quaas, Hailing Jia, Chris Smith, Anna Lea Albright, Wenche Aas, Nicolas Bellouin, Olivier Boucher, Marie Doutriaux-Boucher, Piers M. Forster, Daniel Grosvenor, Stuart Jenkins, Zbigniew Klimont, Norman G. Loeb, Xiaoyan Ma, Vaishali Naik, Fabien Paulot, Philip Stier, Martin Wild, Gunnar Myhre, and Michael Schulz
Atmos. Chem. Phys., 22, 12221–12239, https://doi.org/10.5194/acp-22-12221-2022, https://doi.org/10.5194/acp-22-12221-2022, 2022
Short summary
Short summary
Pollution particles cool climate and offset part of the global warming. However, they are washed out by rain and thus their effect responds quickly to changes in emissions. We show multiple datasets to demonstrate that aerosol emissions and their concentrations declined in many regions influenced by human emissions, as did the effects on clouds. Consequently, the cooling impact on the Earth energy budget became smaller. This change in trend implies a relative warming.
Ukkyo Jeong, Si-Chee Tsay, N. Christina Hsu, David M. Giles, John W. Cooper, Jaehwa Lee, Robert J. Swap, Brent N. Holben, James J. Butler, Sheng-Hsiang Wang, Somporn Chantara, Hyunkee Hong, Donghee Kim, and Jhoon Kim
Atmos. Chem. Phys., 22, 11957–11986, https://doi.org/10.5194/acp-22-11957-2022, https://doi.org/10.5194/acp-22-11957-2022, 2022
Short summary
Short summary
Ultraviolet (UV) measurements from satellite and ground are important for deriving information on several atmospheric trace and aerosol characteristics. Simultaneous retrievals of aerosol and trace gases in this study suggest that water uptake by aerosols is one of the important phenomena affecting aerosol properties over northern Thailand, which is important for regional air quality and climate. Obtained aerosol properties covering the UV are also important for various satellite algorithms.
Abdulaziz Tunde Yakubu and Naven Chetty
Atmos. Chem. Phys., 22, 11065–11087, https://doi.org/10.5194/acp-22-11065-2022, https://doi.org/10.5194/acp-22-11065-2022, 2022
Short summary
Short summary
This study examined the source of atmospheric aerosols and their role in forming clouds and rainfall over South Africa. The research provided answers to the cause of low precipitation, mainly linked to drought and water shortages experienced over the region. Further insight into the cause of occasional flooding that occurs in other parts of the area is provided. Finally, the study described the relationship between aerosol–cloud precipitation based on observation over the region.
África Barreto, Rosa D. García, Carmen Guirado-Fuentes, Emilio Cuevas, A. Fernando Almansa, Celia Milford, Carlos Toledano, Francisco J. Expósito, Juan P. Díaz, and Sergio F. León-Luis
Atmos. Chem. Phys., 22, 11105–11124, https://doi.org/10.5194/acp-22-11105-2022, https://doi.org/10.5194/acp-22-11105-2022, 2022
Short summary
Short summary
A comprehensive characterization of atmospheric aerosols in the subtropical eastern North Atlantic has been carried out in this paper using long-term ground AERONET photometric observations over the period 2005–2020 from a unique network made up of four stations strategically located from sea level to 3555 m height on the island of Tenerife. This is a region that can be considered a key location to study the seasonal dependence of dust transport from the Sahel-Sahara.
Xiaoxi Zhao, Kan Huang, Joshua S. Fu, and Sabur F. Abdullaev
Atmos. Chem. Phys., 22, 10389–10407, https://doi.org/10.5194/acp-22-10389-2022, https://doi.org/10.5194/acp-22-10389-2022, 2022
Short summary
Short summary
Long-range transport of Asian dust to the Arctic was considered an important source of Arctic air pollution. Different transport routes to the Arctic had divergent effects on the evolution of aerosol properties. Depositions of long-range-transported dust particles can reduce the Arctic surface albedo considerably. This study implied that the ubiquitous long-transport dust from China exerted considerable aerosol indirect effects on the Arctic and may have potential biogeochemical significance.
Katherine T. Junghenn Noyes, Ralph A. Kahn, James A. Limbacher, and Zhanqing Li
Atmos. Chem. Phys., 22, 10267–10290, https://doi.org/10.5194/acp-22-10267-2022, https://doi.org/10.5194/acp-22-10267-2022, 2022
Short summary
Short summary
We compare retrievals of wildfire smoke particle size, shape, and light absorption from the MISR satellite instrument to modeling and other satellite data on land cover type, drought conditions, meteorology, and estimates of fire intensity (fire radiative power – FRP). We find statistically significant differences in the particle properties based on burning conditions and land cover type, and we interpret how changes in these properties point to specific aerosol aging mechanisms.
David W. Fillmore, David A. Rutan, Seiji Kato, Fred G. Rose, and Thomas E. Caldwell
Atmos. Chem. Phys., 22, 10115–10137, https://doi.org/10.5194/acp-22-10115-2022, https://doi.org/10.5194/acp-22-10115-2022, 2022
Short summary
Short summary
This paper presents an evaluation of the aerosol analysis incorporated into the Clouds and the Earth's Radiant Energy System (CERES) data products as well as the aerosols' impact on solar radiation reaching the surface. CERES is a NASA Earth observation mission with instruments flying on various polar-orbiting satellites. Its primary objective is the study of the radiative energy balance of the climate system as well as examination of the influence of clouds and aerosols on this balance.
Peng Xian, Jianglong Zhang, Norm T. O'Neill, Travis D. Toth, Blake Sorenson, Peter R. Colarco, Zak Kipling, Edward J. Hyer, James R. Campbell, Jeffrey S. Reid, and Keyvan Ranjbar
Atmos. Chem. Phys., 22, 9915–9947, https://doi.org/10.5194/acp-22-9915-2022, https://doi.org/10.5194/acp-22-9915-2022, 2022
Short summary
Short summary
The study provides baseline Arctic spring and summertime aerosol optical depth climatology, trend, and extreme event statistics from 2003 to 2019 using a combination of aerosol reanalyses, remote sensing, and ground observations. Biomass burning smoke has an overwhelming contribution to black carbon (an efficient climate forcer) compared to anthropogenic sources. Burning's large interannual variability and increasing summer trend have important implications for the Arctic climate.
Harshvardhan Harshvardhan, Richard Ferrare, Sharon Burton, Johnathan Hair, Chris Hostetler, David Harper, Anthony Cook, Marta Fenn, Amy Jo Scarino, Eduard Chemyakin, and Detlef Müller
Atmos. Chem. Phys., 22, 9859–9876, https://doi.org/10.5194/acp-22-9859-2022, https://doi.org/10.5194/acp-22-9859-2022, 2022
Short summary
Short summary
The evolution of aerosol in biomass burning smoke plumes that travel over marine clouds off the Atlantic coast of central Africa was studied using measurements made by a lidar deployed on a high-altitude aircraft. The main finding was that the physical properties of aerosol do not change appreciably once the plume has left land and travels over the ocean over a timescale of 1 to 2 d. Almost all particles in the plume are of radius less than 1 micrometer and spherical in shape.
Peng Xian, Jianglong Zhang, Norm T. O'Neill, Jeffrey S. Reid, Travis D. Toth, Blake Sorenson, Edward J. Hyer, James R. Campbell, and Keyvan Ranjbar
Atmos. Chem. Phys., 22, 9949–9967, https://doi.org/10.5194/acp-22-9949-2022, https://doi.org/10.5194/acp-22-9949-2022, 2022
Short summary
Short summary
The study provides a baseline Arctic spring and summertime aerosol optical depth climatology, trend, and extreme event statistics from 2003 to 2019 using a combination of aerosol reanalyses, remote sensing, and ground observations. Biomass burning smoke has an overwhelming contribution to black carbon (an efficient climate forcer) compared to anthropogenic sources. Burning's large interannual variability and increasing summer trend have important implications for the Arctic climate.
Sudip Chakraborty, Bin Guan, Duane E. Waliser, and Arlindo M. da Silva
Atmos. Chem. Phys., 22, 8175–8195, https://doi.org/10.5194/acp-22-8175-2022, https://doi.org/10.5194/acp-22-8175-2022, 2022
Short summary
Short summary
This study explores extreme aerosol transport events by aerosol atmospheric rivers (AARs) and shows the characteristics of individual AARs such as length, width, length-to-width ratio, transport strength, and dominant transport direction, the seasonal variations, the relationship to the spatial distribution of surface emissions, the vertical profiles of wind, aerosol mixing ratio, and aerosol mass fluxes, and the major planetary-scale aerosol transport pathways.
Guangyao Dai, Kangwen Sun, Xiaoye Wang, Songhua Wu, Xiangying E, Qi Liu, and Bingyi Liu
Atmos. Chem. Phys., 22, 7975–7993, https://doi.org/10.5194/acp-22-7975-2022, https://doi.org/10.5194/acp-22-7975-2022, 2022
Short summary
Short summary
In this paper, a Sahara dust event is tracked with the spaceborne lidars ALADIN and CALIOP and the models ECMWF and HYSPLIT. The performance of ALADIN and CALIOP on tracking the dust event and on the observations of dust optical properties and wind fields during the dust transport is evaluated. The dust mass advection is defined, which is calculated with the combination of data from ALADIN and CALIOP coupled with the products from models to describe the dust transport quantitatively.
Ke Gui, Wenrui Yao, Huizheng Che, Linchang An, Yu Zheng, Lei Li, Hujia Zhao, Lei Zhang, Junting Zhong, Yaqiang Wang, and Xiaoye Zhang
Atmos. Chem. Phys., 22, 7905–7932, https://doi.org/10.5194/acp-22-7905-2022, https://doi.org/10.5194/acp-22-7905-2022, 2022
Short summary
Short summary
This study investigates the aerosol optical and radiative properties and meteorological drivers during two mega SDS events over Northern China in March 2021. The MODIS-retrieved DOD data registered these two events as the most intense episode in the same period in history over the past 20 years. These two extreme SDS events were associated with both atmospheric circulation extremes and local meteorological anomalies that favor enhanced dust emissions in the Gobi Desert.
Manuel Gutleben, Silke Groß, Christian Heske, and Martin Wirth
Atmos. Chem. Phys., 22, 7319–7330, https://doi.org/10.5194/acp-22-7319-2022, https://doi.org/10.5194/acp-22-7319-2022, 2022
Short summary
Short summary
The main transportation route of Saharan mineral dust particles leads over the subtropical Atlantic Ocean and is subject to a seasonal variation. This study investigates the characteristics of wintertime transatlantic dust transport towards the Caribbean by means of airborne lidar measurements. It is found that dust particles are transported at low atmospheric altitudes (<3.5 km) embedded in a relatively moist mixture with two other particle types, namely marine and biomass-burning particles.
Goutam Choudhury, Albert Ansmann, and Matthias Tesche
Atmos. Chem. Phys., 22, 7143–7161, https://doi.org/10.5194/acp-22-7143-2022, https://doi.org/10.5194/acp-22-7143-2022, 2022
Short summary
Short summary
Lidars provide height-resolved type-specific aerosol properties and are key in studying vertically collocated aerosols and clouds. In this study, we compare the aerosol number concentrations derived from spaceborne lidar with the in situ flight measurements. Our results show a reasonable agreement between both datasets. Such an agreement has not been achieved yet. It shows the potential of spaceborne lidar in studying aerosol–cloud interactions, which is needed to improve our climate forecasts.
Nair K. Kala, Narayana Sarma Anand, Mohanan R. Manoj, Harshavardhana S. Pathak, Krishnaswamy K. Moorthy, and Sreedharan K. Satheesh
Atmos. Chem. Phys., 22, 6067–6085, https://doi.org/10.5194/acp-22-6067-2022, https://doi.org/10.5194/acp-22-6067-2022, 2022
Short summary
Short summary
We present the 3-D distribution of atmospheric aerosols and highlight its variation with respect to longitudes over the Indian mainland and the surrounding oceans using long-term satellite observations and realistic synthesised data. The atmospheric heating due to the 3-D distribution of aerosols is estimated using radiative transfer calculations. We believe that our findings will have strong implications for aerosol–radiation interactions in regional climate simulations.
Archana Devi and Sreedharan K. Satheesh
Atmos. Chem. Phys., 22, 5365–5376, https://doi.org/10.5194/acp-22-5365-2022, https://doi.org/10.5194/acp-22-5365-2022, 2022
Short summary
Short summary
Global maps of aerosol absorption were generated using a multi-satellite retrieval algorithm. The retrieved values were validated with available aircraft-based measurements and compared with other global datasets. Seasonal and spatial distributions of aerosol absorption over various regions are also presented. The global maps of single scattering albedo with improved accuracy provide important input to climate models for assessing the climatic impact of aerosols on regional and global scales.
Qiaoyun Hu, Philippe Goloub, Igor Veselovskii, and Thierry Podvin
Atmos. Chem. Phys., 22, 5399–5414, https://doi.org/10.5194/acp-22-5399-2022, https://doi.org/10.5194/acp-22-5399-2022, 2022
Short summary
Short summary
Our lidar observations show that the optical properties of wildfire smoke particles are highly varied after long-range transport. The variabilities are probably relevant to vegetation type, combustion condition and the aging process, which alter the smoke particle properties, as well as their impact on cloud processes and properties. The lidar fluorescence channel provides a good opportunity for smoke characterization and heterogenous ice crystal formation.
Igor Veselovskii, Qiaoyun Hu, Albert Ansmann, Philippe Goloub, Thierry Podvin, and Mikhail Korenskiy
Atmos. Chem. Phys., 22, 5209–5221, https://doi.org/10.5194/acp-22-5209-2022, https://doi.org/10.5194/acp-22-5209-2022, 2022
Short summary
Short summary
A remote sensing method based on fluorescence lidar measurements can detect and quantify the smoke content in the upper troposphere and inside cirrus clouds. Based on two case studies, we demonstrate that the fluorescence lidar technique provides the possibility to estimate the smoke surface area concentration within freshly formed cirrus layers. This value was used in a smoke ice nucleating particle parameterization scheme to predict ice crystal number concentrations in cirrus generation cells.
Alexandru Mereuţă, Nicolae Ajtai, Andrei T. Radovici, Nikolaos Papagiannopoulos, Lucia T. Deaconu, Camelia S. Botezan, Horaţiu I. Ştefănie, Doina Nicolae, and Alexandru Ozunu
Atmos. Chem. Phys., 22, 5071–5098, https://doi.org/10.5194/acp-22-5071-2022, https://doi.org/10.5194/acp-22-5071-2022, 2022
Short summary
Short summary
In this study we analysed oil smoke plumes from 30 major industrial events within a 12-year timeframe. To our knowledge, this is the first study of its kind that uses a synergetic approach based on satellite remote sensing techniques. Satellite data offer access to these events, which are mainly located in war-prone or hazardous areas. Our study highlights the need for improved aerosol models and algorithms for these types of aerosols with implications on air quality and climate change.
Xiaoxia Shang, Holger Baars, Iwona S. Stachlewska, Ina Mattis, and Mika Komppula
Atmos. Chem. Phys., 22, 3931–3944, https://doi.org/10.5194/acp-22-3931-2022, https://doi.org/10.5194/acp-22-3931-2022, 2022
Short summary
Short summary
This study reports pollen observations at four lidar stations (Hohenpeißenberg, Germany; Kuopio, Finland; Leipzig, Germany; and Warsaw, Poland) during the intensive observation campaign organized in May 2020. A novel simple method for the characterization of the pure pollen is proposed, based on lidar measurements. It was applied to evaluate the pollen depolarization ratio and for the aerosol classifications.
Meloë S. F. Kacenelenbogen, Qian Tan, Sharon P. Burton, Otto P. Hasekamp, Karl D. Froyd, Yohei Shinozuka, Andreas J. Beyersdorf, Luke Ziemba, Kenneth L. Thornhill, Jack E. Dibb, Taylor Shingler, Armin Sorooshian, Reed W. Espinosa, Vanderlei Martins, Jose L. Jimenez, Pedro Campuzano-Jost, Joshua P. Schwarz, Matthew S. Johnson, Jens Redemann, and Gregory L. Schuster
Atmos. Chem. Phys., 22, 3713–3742, https://doi.org/10.5194/acp-22-3713-2022, https://doi.org/10.5194/acp-22-3713-2022, 2022
Short summary
Short summary
The impact of aerosols on Earth's radiation budget and human health is important and strongly depends on their composition. One desire of our scientific community is to derive the composition of the aerosol from satellite sensors. However, satellites observe aerosol optical properties (and not aerosol composition) based on remote sensing instrumentation. This study assesses how much aerosol optical properties can tell us about aerosol composition.
Antonis Gkikas, Emmanouil Proestakis, Vassilis Amiridis, Stelios Kazadzis, Enza Di Tomaso, Eleni Marinou, Nikos Hatzianastassiou, Jasper F. Kok, and Carlos Pérez García-Pando
Atmos. Chem. Phys., 22, 3553–3578, https://doi.org/10.5194/acp-22-3553-2022, https://doi.org/10.5194/acp-22-3553-2022, 2022
Short summary
Short summary
We present a comprehensive climatological analysis of dust optical depth (DOD) relying on the MIDAS dataset. MIDAS provides columnar mid-visible (550 nm) DOD at fine spatial resolution (0.1° × 0.1°) over a 15-year period (2003–2017). In the current study, the analysis is performed at various spatial (from regional to global) and temporal (from months to years) scales. More specifically, focus is given to specific regions hosting the major dust sources as well as downwind areas of the planet.
Nilton Évora do Rosário, Elisa Thomé Sena, and Marcia Akemi Yamasoe
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2021-1086, https://doi.org/10.5194/acp-2021-1086, 2022
Revised manuscript accepted for ACP
Short summary
Short summary
Brazil 2020 biomass burning was a singular one, almost half of Pantanal biome was burned, which caused a significant loss of biodiversity and important climate impacts, whose effects are yet to be fully evaluated. The fire counts in Pantanal were 3.4 times higher than the usually seen. A shift in the regional smoke plume center mass toward Pantanal was observed. Another relevant aspect is that the beginning of the 2020 dry-to-wet season over Pantanal was the most as polluted in 18 years.
Michaël Sicard, Carmen Córdoba-Jabonero, María-Ángeles López-Cayuela, Albert Ansmann, Adolfo Comerón, María-Paz Zorzano, Alejandro Rodríguez-Gómez, and Constantino Muñoz-Porcar
Atmos. Chem. Phys., 22, 1921–1937, https://doi.org/10.5194/acp-22-1921-2022, https://doi.org/10.5194/acp-22-1921-2022, 2022
Short summary
Short summary
This paper completes the companion paper of Córdoba-Jabonero et al. (2021). We estimate the total direct radiative effect produced by mineral dust particles during the June 2019 mega-heatwave at two sites in Spain and Germany. The results show that the dust particles in the atmosphere contribute to cooling the surface (less radiation reaches the surface) and that the heatwave (parametrized by high surface and air temperatures) contributes to reducing this cooling.
Keyvan Ranjbar, Norm T. O'Neill, and Yasmin Aboel-Fetouh
Atmos. Chem. Phys., 22, 1757–1760, https://doi.org/10.5194/acp-22-1757-2022, https://doi.org/10.5194/acp-22-1757-2022, 2022
Short summary
Short summary
We argue that the illustration employed by Huang et al. (2015) to demonstrate the transport of Asian dust to the high Arctic was, in fact, largely a cloud event and that the actual impact of Asian dust was measurable but much weaker than what they proposed and had occurred a day earlier (in agreement with the transport model they had employed to predict the transport path to the high Arctic).
Jesús Abril-Gago, Juan Luis Guerrero-Rascado, Maria João Costa, Juan Antonio Bravo-Aranda, Michaël Sicard, Diego Bermejo-Pantaleón, Daniele Bortoli, María José Granados-Muñoz, Alejandro Rodríguez-Gómez, Constantino Muñoz-Porcar, Adolfo Comerón, Pablo Ortiz-Amezcua, Vanda Salgueiro, Marta María Jiménez-Martín, and Lucas Alados-Arboledas
Atmos. Chem. Phys., 22, 1425–1451, https://doi.org/10.5194/acp-22-1425-2022, https://doi.org/10.5194/acp-22-1425-2022, 2022
Short summary
Short summary
A validation of Aeolus reprocessed optical products is carried out via an intercomparison with ground-based measurements taken at several ACTRIS/EARLINET stations in western Europe. Case studies and a statistical analysis are presented. The stations are located in a hot spot between Africa and the rest of Europe, which guarantees a variety of aerosol types, from mineral dust layers to continental/anthropogenic aerosol, and allows us to test Aeolus performance under different scenarios.
Sujung Go, Alexei Lyapustin, Gregory L. Schuster, Myungje Choi, Paul Ginoux, Mian Chin, Olga Kalashnikova, Oleg Dubovik, Jhoon Kim, Arlindo da Silva, Brent Holben, and Jeffrey S. Reid
Atmos. Chem. Phys., 22, 1395–1423, https://doi.org/10.5194/acp-22-1395-2022, https://doi.org/10.5194/acp-22-1395-2022, 2022
Short summary
Short summary
This paper presents a retrieval algorithm of iron-oxide species (hematite, goethite) content in the atmosphere from DSCOVR EPIC observations. Our results display variations within the published range of hematite and goethite over the main dust-source regions but show significant seasonal and spatial variability. This implies a single-viewing satellite instrument with UV–visible channels may provide essential information on shortwave dust direct radiative effects for climate modeling.
Patrick Chazette, Alexandre Baron, and Cyrille Flamant
Atmos. Chem. Phys., 22, 1271–1292, https://doi.org/10.5194/acp-22-1271-2022, https://doi.org/10.5194/acp-22-1271-2022, 2022
Short summary
Short summary
Within the framework of the international EUREC4A project, horizontal lidar measurements were carried out over Barbados from the French research aircraft ATR-42. These measurements highlighted the strong heterogeneity of the aerosol field (mainly dust and biomass burning aerosols) and therefore of the associated optical properties. This heterogeneity varies according to meteorological conditions and could significantly modulate the climatic impact of aerosols trapped over the tropical Atlantic.
África Barreto, Emilio Cuevas, Rosa D. García, Judit Carrillo, Joseph M. Prospero, Luka Ilić, Sara Basart, Alberto J. Berjón, Carlos L. Marrero, Yballa Hernández, Juan José Bustos, Slobodan Ničković, and Margarita Yela
Atmos. Chem. Phys., 22, 739–763, https://doi.org/10.5194/acp-22-739-2022, https://doi.org/10.5194/acp-22-739-2022, 2022
Short summary
Short summary
In this study, we categorise the different patterns of dust transport over the subtropical North Atlantic and for the first time robustly describe the dust vertical distribution in the Saharan Air Layer (SAL) over this region. Our results revealed the important role that both dust and water vapour play in the radiative balance in summer and winter and confirm the role of the SAL in the formation of mid-level clouds as a result of the activation of heterogeneous ice nucleation processes.
Lixing Shen, Chuanfeng Zhao, Xingchuan Yang, Yikun Yang, and Ping Zhou
Atmos. Chem. Phys., 22, 419–439, https://doi.org/10.5194/acp-22-419-2022, https://doi.org/10.5194/acp-22-419-2022, 2022
Short summary
Short summary
Using multi-year data, this study reveals the slump of sea land breeze (SLB) at Brisbane during mega fires and investigates the impact of fire-induced aerosols on SLB. Different aerosols have different impacts on sea wind (SW) and land wind (LW). Aerosols cause the decrease of SW, partially offset by the warming effect of black carbon (BC). The large-scale cooling effect of aerosols on sea surface temperature (SST) and the burst of BC contribute to the slump of LW.
Xinqi Xu, Jielan Xie, Yuman Li, Shengjie Miao, and Shaojia Fan
Atmos. Chem. Phys., 22, 139–153, https://doi.org/10.5194/acp-22-139-2022, https://doi.org/10.5194/acp-22-139-2022, 2022
Short summary
Short summary
The effect of meteorological elements on the three-dimensional distribution structure of particles was studied by making vehicle-based multi-lidar observations in the western Guangdong–Hong Kong–Macao Greater Bay Area of China. Results showed that distribution of particles was closely related to horizontal wind speed and direction, vertical wind speed, and temperature. A model for meteorological elements affecting the vertical distribution of urban particles was offered in this study.
Manu Anna Thomas, Abhay Devasthale, and Michael Kahnert
Atmos. Chem. Phys., 22, 119–137, https://doi.org/10.5194/acp-22-119-2022, https://doi.org/10.5194/acp-22-119-2022, 2022
Short summary
Short summary
The Southern Ocean (SO) covers a large area of our planet and its boundary layer is dominated by sea salt aerosols during winter. These aerosols have large implications for the regional climate through their direct and indirect effects. Using satellite and reanalysis data, we document if and how the aerosol properties over the SO are dependent on different local meteorological parameters. Such an observational assessment is necessary to improve the understanding of atmospheric aerosol processes.
Qingqing He, Mengya Wang, and Steve Hung Lam Yim
Atmos. Chem. Phys., 21, 18375–18391, https://doi.org/10.5194/acp-21-18375-2021, https://doi.org/10.5194/acp-21-18375-2021, 2021
Short summary
Short summary
We explore the spatiotemporal relationship between PM2.5 and AOD over China using a multi-scale analysis with MODIS MAIAC 1 km aerosol observations and ground measurements. The impact factors (vertical distribution, relative humidity and terrain) on the relationship are quantitatively studied. Our results provide significant information on PM2.5 and AOD, which is informative for mapping high-resolution PM2.5 and furthering the understanding of aerosol properties and the PM2.5 pollution status.
Michaël Sicard, Oriol Jorba, Jiang Ji Ho, Rebeca Izquierdo, Concepción De Linares, Marta Alarcón, Adolfo Comerón, and Jordina Belmonte
Atmos. Chem. Phys., 21, 17807–17832, https://doi.org/10.5194/acp-21-17807-2021, https://doi.org/10.5194/acp-21-17807-2021, 2021
Short summary
Short summary
This paper investigates the mechanisms involved in the dispersion, structure, and mixing in the vertical column of atmospheric pollen, using observations of pollen concentration obtained at the ground and its stratification in the atmosphere measured by a lidar (laser radar), as well as an atmospheric transport model and a simplified pollen module developed especially for this study. The largest pollen concentration difference between the ground and the layers above is observed during nighttime.
Jianping Guo, Jian Zhang, Kun Yang, Hong Liao, Shaodong Zhang, Kaiming Huang, Yanmin Lv, Jia Shao, Tao Yu, Bing Tong, Jian Li, Tianning Su, Steve H. L. Yim, Ad Stoffelen, Panmao Zhai, and Xiaofeng Xu
Atmos. Chem. Phys., 21, 17079–17097, https://doi.org/10.5194/acp-21-17079-2021, https://doi.org/10.5194/acp-21-17079-2021, 2021
Short summary
Short summary
The planetary boundary layer (PBL) is the lowest part of the troposphere, and boundary layer height (BLH) is the depth of the PBL and is of critical importance to the dispersion of air pollution. The study presents the first near-global BLH climatology by using high-resolution (5-10 m) radiosonde measurements. The variations in BLH exhibit large spatial and temporal dependence, with a peak at 17:00 local solar time. The most promising reanalysis product is ERA-5 in terms of modeling BLH.
Yingying Ma, Yang Zhu, Boming Liu, Hui Li, Shikuan Jin, Yiqun Zhang, Ruonan Fan, and Wei Gong
Atmos. Chem. Phys., 21, 17003–17016, https://doi.org/10.5194/acp-21-17003-2021, https://doi.org/10.5194/acp-21-17003-2021, 2021
Short summary
Short summary
The vertical distribution of the aerosol extinction coefficient (EC) measured by lidar systems has been used to retrieve the profile of particle matter with a diameter of less than 2.5 μm (PM2.5). However, the traditional linear model cannot consider the influence of multiple meteorological variables sufficiently, which then causes low inversion accuracy. In this study, the machine learning algorithms which can input multiple features are used to solve this constraint.
Shixian Zhai, Daniel J. Jacob, Jared F. Brewer, Ke Li, Jonathan M. Moch, Jhoon Kim, Seoyoung Lee, Hyunkwang Lim, Hyun Chul Lee, Su Keun Kuk, Rokjin J. Park, Jaein I. Jeong, Xuan Wang, Pengfei Liu, Gan Luo, Fangqun Yu, Jun Meng, Randall V. Martin, Katherine R. Travis, Johnathan W. Hair, Bruce E. Anderson, Jack E. Dibb, Jose L. Jimenez, Pedro Campuzano-Jost, Benjamin A. Nault, Jung-Hun Woo, Younha Kim, Qiang Zhang, and Hong Liao
Atmos. Chem. Phys., 21, 16775–16791, https://doi.org/10.5194/acp-21-16775-2021, https://doi.org/10.5194/acp-21-16775-2021, 2021
Short summary
Short summary
Geostationary satellite aerosol optical depth (AOD) has tremendous potential for monitoring surface fine particulate matter (PM2.5). Our study explored the physical relationship between AOD and PM2.5 by integrating data from surface networks, aircraft, and satellites with the GEOS-Chem chemical transport model. We quantitatively showed that accurate simulation of aerosol size distributions, boundary layer depths, relative humidity, coarse particles, and diurnal variations in PM2.5 are essential.
Ke Gui, Huizheng Che, Yu Zheng, Hujia Zhao, Wenrui Yao, Lei Li, Lei Zhang, Hong Wang, Yaqiang Wang, and Xiaoye Zhang
Atmos. Chem. Phys., 21, 15309–15336, https://doi.org/10.5194/acp-21-15309-2021, https://doi.org/10.5194/acp-21-15309-2021, 2021
Short summary
Short summary
This study utilized the globally gridded aerosol extinction data from CALIOP during 2007–2019 to investigate the 3D climatology, trends, and meteorological drivers of tropospheric type-dependent aerosols. Results revealed that the planetary boundary layer (PBL) and the free troposphere contribute 62.08 % and 37.92 %, respectively, of the global tropospheric TAOD. Trends in
CALIOP-derived aerosol loading, in particular those partitioned in the PBL, can be explained to a large extent by meteorology.
Jonas Witthuhn, Anja Hünerbein, Florian Filipitsch, Stefan Wacker, Stefanie Meilinger, and Hartwig Deneke
Atmos. Chem. Phys., 21, 14591–14630, https://doi.org/10.5194/acp-21-14591-2021, https://doi.org/10.5194/acp-21-14591-2021, 2021
Short summary
Short summary
Knowledge of aerosol–radiation interactions is important for understanding the climate system and for the renewable energy sector. Here, two complementary approaches are used to assess the consistency of the underlying aerosol properties and the resulting radiative effect in clear-sky conditions over Germany in 2015. An approach based on clear-sky models and broadband irradiance observations is contrasted to the use of explicit radiative transfer simulations using CAMS reanalysis data.
Qianqian Song, Zhibo Zhang, Hongbin Yu, Paul Ginoux, and Jerry Shen
Atmos. Chem. Phys., 21, 13369–13395, https://doi.org/10.5194/acp-21-13369-2021, https://doi.org/10.5194/acp-21-13369-2021, 2021
Short summary
Short summary
We present a satellite-derived global dust climatological record over the last two decades, including the monthly mean visible dust optical depth (DAOD) and vertical distribution of dust extinction coefficient at a 2º × 5º spatial resolution derived from CALIOP and MODIS. In addition, the CALIOP climatological dataset also includes dust vertical extinction profiles. Based on these two datasets, we carried out a comprehensive comparative study of the spatial and temporal climatology of dust.
Isabelle Chiapello, Paola Formenti, Lydie Mbemba Kabuiku, Fabrice Ducos, Didier Tanré, and François Dulac
Atmos. Chem. Phys., 21, 12715–12737, https://doi.org/10.5194/acp-21-12715-2021, https://doi.org/10.5194/acp-21-12715-2021, 2021
Short summary
Short summary
The Mediterranean atmosphere is impacted by a variety of particle pollution, which exerts a complex pressure on climate and air quality. We analyze the 2005–2013 POLDER-3 satellite advanced aerosol data set over the Western Mediterranean Sea. Aerosols' spatial distribution and temporal evolution suggests a large-scale improvement of air quality related to the fine aerosol component, most probably resulting from reduction of anthropogenic particle emissions in the surrounding European countries.
Hongbin Yu, Qian Tan, Lillian Zhou, Yaping Zhou, Huisheng Bian, Mian Chin, Claire L. Ryder, Robert C. Levy, Yaswant Pradhan, Yingxi Shi, Qianqian Song, Zhibo Zhang, Peter R. Colarco, Dongchul Kim, Lorraine A. Remer, Tianle Yuan, Olga Mayol-Bracero, and Brent N. Holben
Atmos. Chem. Phys., 21, 12359–12383, https://doi.org/10.5194/acp-21-12359-2021, https://doi.org/10.5194/acp-21-12359-2021, 2021
Short summary
Short summary
This study characterizes a historic African dust intrusion into the Caribbean Basin in June 2020 using satellites and NASA GEOS. Dust emissions in West Africa were large albeit not extreme. However, a unique synoptic system accumulated the dust near the coast for about 4 d before it was ventilated. Although GEOS reproduced satellite-observed plume tracks well, it substantially underestimated dust emissions and did not lift up dust high enough for ensuing long-range transport.
Yuqin Liu, Tao Lin, Juan Hong, Yonghong Wang, Lamei Shi, Yiyi Huang, Xian Wu, Hao Zhou, Jiahua Zhang, and Gerrit de Leeuw
Atmos. Chem. Phys., 21, 12331–12358, https://doi.org/10.5194/acp-21-12331-2021, https://doi.org/10.5194/acp-21-12331-2021, 2021
Short summary
Short summary
The four-dimensional variation of aerosol properties over the BTH, YRD and PRD (east China) were investigated using satellite observations from 2007 to 2020. Distinct differences between the aerosol optical depth and vertical distribution of the occurrence of aerosol types over these regions depend on season, aerosol loading and meteorological conditions. Day–night differences between the vertical distribution of aerosol types suggest effects of boundary layer dynamics and aerosol transport.
Ákos Horváth, James L. Carr, Olga A. Girina, Dong L. Wu, Alexey A. Bril, Alexey A. Mazurov, Dmitry V. Melnikov, Gholam Ali Hoshyaripour, and Stefan A. Buehler
Atmos. Chem. Phys., 21, 12189–12206, https://doi.org/10.5194/acp-21-12189-2021, https://doi.org/10.5194/acp-21-12189-2021, 2021
Short summary
Short summary
We give a detailed description of a new technique to estimate the height of volcanic eruption columns from near-limb geostationary imagery. Such oblique angle observations offer spectacular side views of eruption columns protruding from the Earth ellipsoid and thereby facilitate a height-by-angle estimation method. Due to its purely geometric nature, the new technique is unaffected by the limitations of traditional brightness-temperature-based height retrievals.
Ákos Horváth, Olga A. Girina, James L. Carr, Dong L. Wu, Alexey A. Bril, Alexey A. Mazurov, Dmitry V. Melnikov, Gholam Ali Hoshyaripour, and Stefan A. Buehler
Atmos. Chem. Phys., 21, 12207–12226, https://doi.org/10.5194/acp-21-12207-2021, https://doi.org/10.5194/acp-21-12207-2021, 2021
Short summary
Short summary
We demonstrate the side view plume height estimation technique described in Part 1 on seven volcanic eruptions from 2019 and 2020, including the 2019 Raikoke eruption. We explore the strengths and limitations of the new technique in comparison to height estimation from brightness temperatures, stereo observations, and ground-based video footage.
Daniel Pérez-Ramírez, David N. Whiteman, Igor Veselovskii, Richard Ferrare, Gloria Titos, María José Granados-Muñoz, Guadalupe Sánchez-Hernández, and Francisco Navas-Guzmán
Atmos. Chem. Phys., 21, 12021–12048, https://doi.org/10.5194/acp-21-12021-2021, https://doi.org/10.5194/acp-21-12021-2021, 2021
Short summary
Short summary
This paper shows how aerosol hygroscopicity enhances the vertical profile of aerosol backscattering and extinction. The study is possible thanks to the large set of remote sensing instruments and focuses on the the Baltimore–Washington DC metropolitan area during hot and humid summer days with very relevant anthropogenic emission aerosol sources. The results illustrate how the combination of aerosol emissions and meteorological conditions ultimately alters the aerosol radiative forcing.
Lin Tian, Lin Chen, Peng Zhang, and Lei Bi
Atmos. Chem. Phys., 21, 11669–11687, https://doi.org/10.5194/acp-21-11669-2021, https://doi.org/10.5194/acp-21-11669-2021, 2021
Short summary
Short summary
The result shows dust aerosols from the Taklimakan Desert have higher aerosol scattering during dust storm cases of this paper, and this caused higher negative direct radiative forcing efficiency (DRFEdust) than aerosols from the Sahara.
The microphysical properties and particle shapes of dust aerosol significantly influence DRFEdust. The satellite-based equi-albedo method has a unique advantage in DRFEdust estimation: it could validate the results derived from the numerical model directly.
Cited articles
Ackermann, J.: The extinction-to-backscatter ratio of tropospheric aerosol:
A numerical study, J. Atmos. Ocean. Tech., 15, 1043–1050,
https://doi.org/10.1175/1520-0426(1998)015<1043:Tetbro>2.0.Co;2, 1998.
Alexander, S. P. and Protat, A.: Vertical Profiling of Aerosols With a
Combined Raman-Elastic Backscatter Lidar in the Remote Southern Ocean Marine
Boundary Layer (43–66∘ S, 132–150∘ E), J.
Geophys. Res.-Atmos., 124, 12107–12125,
https://doi.org/10.1029/2019jd030628, 2019.
Amiridis, V., Balis, D. S., Giannakaki, E., Stohl, A., Kazadzis, S., Koukouli, M. E., and Zanis, P.: Optical characteristics of biomass burning aerosols over Southeastern Europe determined from UV-Raman lidar measurements, Atmos. Chem. Phys., 9, 2431–2440, https://doi.org/10.5194/acp-9-2431-2009, 2009.
Andreae, M. O. and Merlet, P.: Emission of trace gases and aerosols from
biomass burning, Global Biogeochem. Cy., 15, 955–966,
https://doi.org/10.1029/2000gb001382, 2001.
Ansmann, A., Riebesell, M., Wandinger, U., Weitkamp, C., Voss, E., Lahmann,
W., and Michaelis, W.: Combined Raman Elastic-Backscatter Lidar for Vertical
Profiling of Moisture, Aerosol Extinction, Backscatter, and Lidar Ratio,
Appl. Phys. B, 55, 18–28,
https://doi.org/10.1007/Bf00348608, 1992.
Behrendt, A. and Nakamura, T.: Calculation of the calibration constant of
polarization lidar and its dependency on atmospheric temperature, Opt.
Express, 10, 805–817, https://doi.org/10.1364/oe.10.000805, 2002.
Cai, C., Geng, F., Tie, X., Yu, Q., and An, J.: Characteristics and source
apportionment of VOCs measured in Shanghai, China, Atmos. Environ.,
44, 5005–5014, https://doi.org/10.1016/j.atmosenv.2010.07.059, 2010.
Chen, Z., Liu, W., Heese, B., Althausen, D., Baars, H., Cheng, T., Shu, X.,
and Zhang, T.: Aerosol optical properties observed by combined Raman-elastic
backscatter lidar in winter 2009 in Pearl River Delta, south China, J.
Geophys. Res.-Atmos., 119, 2496–2510,
https://doi.org/10.1002/2013jd020200, 2014.
Cheng, T., Xu, C., Duan, J., Wang, Y., Leng, C., Tao, J., Che, H., He, Q.,
Wu, Y., Zhang, R., Li, X., Chen, J., Kong, L., and Yu, X.: Seasonal
variation and difference of aerosol optical properties in columnar and
surface atmospheres over Shanghai, Atmos. Environ., 123, 315–326,
https://doi.org/10.1016/j.atmosenv.2015.05.029, 2015.
Chow, J. C., Watson, J. G., Doraiswamy, P., Chen, L.-W. A., Sodeman, D. A.,
Lowenthal, D. H., Park, K., Arnott, W. P., and Motallebi, N.: Aerosol light
absorption, black carbon, and elemental carbon at the Fresno Supersite,
California, Atmos. Res., 93, 874–887,
https://doi.org/10.1016/j.atmosres.2009.04.010, 2009.
D'Amico, G., Amodeo, A., Mattis, I., Freudenthaler, V., and Pappalardo, G.: EARLINET Single Calculus Chain – technical – Part 1: Pre-processing of raw lidar data, Atmos. Meas. Tech., 9, 491–507, https://doi.org/10.5194/amt-9-491-2016, 2016.
Fan, S., Liu, C., Xie, Z., Dong, Y., Hu, Q., Fan, G., Chen, Z., Zhang, T.,
Duan, J., Zhang, P., and Liu, J.: Scanning vertical distributions of typical
aerosols along the Yangtze River using elastic lidar, Sci. Total Environ.,
628/629, 631–641, https://doi.org/10.1016/j.scitotenv.2018.02.099, 2018.
Fernald, F. G.: Analysis of atmospheric lidar observations: some comments,
OSA Proc., 23, 652–653, 1984.
Ferrare, R. A., Turner, D. D., Brasseur, L. H., Feltz, W. F., Dubovik, O.,
and Tooman, T. P.: Raman lidar measurements of the aerosol
extinction-to-backscatter ratio over the Southern Great Plains, J.
Geophys. Res.-Atmos., 106, 20333–20347,
https://doi.org/10.1029/2000jd000144, 2001.
Franke, K., Ansmann, A., Muller, D., Althausen, D., Wagner, A., and Scheele,
R.: One-year observations of particle lidar ratio over the tropical Indian
Ocean with Raman lidar, Geophys. Res. Lett., 28, 4559–4562,
https://doi.org/10.1029/2001gl013671, 2001.
Fu, Q., Thorsen, T. J., Su, J., Ge, J. M., and Huang, J. P.: Test of
Mie-based single-scattering properties of non-spherical dust aerosols in
radiative flux calculations, J. Quant. Spectrosc.
Ra., 110, 1640–1653,
https://doi.org/10.1016/j.jqsrt.2009.03.010, 2009.
Gelaro, R., McCarty, W., Suarez, M. J., Todling, R., Molod, A., Takacs, L.,
Randles, C., Darmenov, A., Bosilovich, M. G., Reichle, R., Wargan, K., Coy,
L., Cullather, R., Draper, C., Akella, S., Buchard, V., Conaty, A., da
Silva, A., Gu, W., Kim, G. K., Koster, R., Lucchesi, R., Merkova, D.,
Nielsen, J. E., Partyka, G., Pawson, S., Putman, W., Rienecker, M.,
Schubert, S. D., Sienkiewicz, M., and Zhao, B.: The Modern-Era Retrospective
Analysis for Research and Applications, Version 2 (MERRA-2), J. Climate,
30, 5419–5454, https://doi.org/10.1175/JCLI-D-16-0758.1, 2017.
Giannakaki, E., van Zyl, P. G., Müller, D., Balis, D., and Komppula, M.: Optical and microphysical characterization of aerosol layers over South Africa by means of multi-wavelength depolarization and Raman lidar measurements, Atmos. Chem. Phys., 16, 8109–8123, https://doi.org/10.5194/acp-16-8109-2016, 2016.
Gobbi, G. P.: Polarization lidar returns from aerosols and thin clouds: a
framework for the analysis, Appl. Opt., 37, 5505–5508,
https://doi.org/10.1364/ao.37.005505, 1998.
Gong, W., Liu, B., Ma, Y., and Zhang, M.: Mie LIDAR Observations of
Tropospheric Aerosol over Wuhan, Atmosphere, 6, 1129–1140,
https://doi.org/10.3390/atmos6081129, 2015.
Hänel, A., Baars, H., Althausen, D., Ansmann, A., Engelmann, R., and
Sun, J. Y.: One-year aerosol profiling with EUCAARI Raman lidar at
Shangdianzi GAW station: Beijing plume and seasonal variations, J.
Geophys. Res.-Atmos., 117, D13201,
https://doi.org/10.1029/2012jd017577, 2012.
He, Q., Zhao, X., Lu, J., Zhou, G., Yang, H., Gao, W., Yu, W., and Cheng,
T.: Impacts of biomass-burning on aerosol properties of a severe haze event
over Shanghai, Particuology, 20, 52–60,
https://doi.org/10.1016/j.partic.2014.11.004, 2015.
He, Q. S., Li, C. C., Mao, J. T., Lau, A. K. H., and Li, P. R.: A study on the aerosol extinction-to-backscatter ratio with combination of micro-pulse LIDAR and MODIS over Hong Kong, Atmos. Chem. Phys., 6, 3243–3256, https://doi.org/10.5194/acp-6-3243-2006, 2006.
Hee, W. S., Lim, H. S., Jafri, M. Z. M., Lolli, S., and Ying, K. W.:
Vertical Profiling of Aerosol Types Observed across Monsoon Seasons with a
Raman Lidar in Penang Island, Malaysia, Aerosol Air Qual. Res.,
16, 2843–2854, https://doi.org/10.4209/aaqr.2015.07.0450, 2016.
Hess, M., Koepke, P., and Schult, I.: Optical properties of aerosols and
clouds: The software package OPAC, B. Am. Meteorol. Soc., 79, 831–844,
https://doi.org/10.1175/1520-0477(1998)079<0831:Opoaac>2.0.Co;2, 1998.
Hu, Q., Goloub, P., Veselovskii, I., Bravo-Aranda, J.-A., Popovici, I. E., Podvin, T., Haeffelin, M., Lopatin, A., Dubovik, O., Pietras, C., Huang, X., Torres, B., and Chen, C.: Long-range-transported Canadian smoke plumes in the lower stratosphere over northern France, Atmos. Chem. Phys., 19, 1173–1193, https://doi.org/10.5194/acp-19-1173-2019, 2019.
Huang, J., Lin, B., Minnis, P., Wang, T., Wang, X., Hu, Y., Yi, Y., and
Ayers, J. K.: Satellite-based assessment of possible dust aerosols
semi-direct effect on cloud water path over East Asia, Geophys. Res.
Lett., 33, L19802, https://doi.org/10.1029/2006gl026561, 2006.
Huang, J. P., Wang, T. H., Wang, W. C., Li, Z. Q., and Yan, H. R.: Climate
effects of dust aerosols over East Asian arid and semiarid regions, J.
Geophys. Res.-Atmos., 119, 11398–11416, https://doi.org/10.1002/2014jd021796,
2014.
Huang, K., Zhuang, G., Lin, Y., Fu, J. S., Wang, Q., Liu, T., Zhang, R., Jiang, Y., Deng, C., Fu, Q., Hsu, N. C., and Cao, B.: Typical types and formation mechanisms of haze in an Eastern Asia megacity, Shanghai, Atmos. Chem. Phys., 12, 105–124, https://doi.org/10.5194/acp-12-105-2012, 2012.
Jacobson, M. Z.: Studying the effects of aerosols on vertical photolysis
rate coefficient and temperature profiles over an urban airshed, J.
Geophys. Res.-Atmos., 103, 10593–10604,
https://doi.org/10.1029/98jd00287, 1998.
Jacobson, M. Z. and Kaufman, Y. J.: Wind reduction by aerosol particles, Geophys. Res. Lett., 33, L24814, https://doi.org/10.1029/2006gl027838, 2006.
Kai, K., Nagata, Y., Tsunematsu, N., Matsumura, T., Kim, H.-S., Matsumoto,
T., Hu, S., Zhou, H., Abo, M., and Nagai, T.: The Structure of the Dust
Layer over the Taklimakan Deser during the Dust Storm in April 2002 as
Observed Using a Depolarization Lidar, J. Meteorol. Soc. Jpn., 86, 1–16,
https://doi.org/10.2151/jmsj.86.1, 2008.
Kalluri, R. O. R., Zhang, X., Bi, L., Zhao, J., Yu, L., and Kotalo, R. G.:
Carbonaceous aerosol emission reduction over Shandong province and the
impact of air pollution control as observed from synthetic satellite data,
Atmos. Environ., 222, 117150,
https://doi.org/10.1016/j.atmosenv.2019.117150, 2020.
Kim, M.-H., Omar, A. H., Tackett, J. L., Vaughan, M. A., Winker, D. M., Trepte, C. R., Hu, Y., Liu, Z., Poole, L. R., Pitts, M. C., Kar, J., and Magill, B. E.: The CALIPSO version 4 automated aerosol classification and lidar ratio selection algorithm, Atmos. Meas. Tech., 11, 6107–6135, https://doi.org/10.5194/amt-11-6107-2018, 2018.
Liu, D., Kanitz, T., Ciapponi, A., Mondello, A., D'Ottavi, A., Mateo, A. B.,
Straume, A.-G., Voland, C., Bon, D., Checa, E., Alvarez, E., Bellucci, I.,
Do Carmo, J. P., Brewster, J., Marshall, J., Schillinger, M., Hannington,
M., Rennie, M., Reitebuch, O., Lecrenier, O., Bravetti, P., Sacchieri, V.,
De Sanctis, V., Lefebvre, A., Parrinello, T., Wernham, D., Wang, Y., Wu, Y.,
Gross, B., and Moshary, F.: ESA’s Lidar Missions Aeolus and EarthCARE, The 29th International Laser Radar Conference (ILRC 29), 24-28 June 2019, Hefei, Peoples R China, 237, 01006, https://doi.org/10.1051/epjconf/202023701006, 2020a.
Liu, J., Zheng, Y., Li, Z., Flynn, C., and Cribb, M.: Seasonal variations of
aerosol optical properties, vertical distribution and associated radiative
effects in the Yangtze Delta region of China, J. Geophys.
Res.-Atmos., 117, D00K38, https://doi.org/10.1029/2011jd016490,
2012.
Liu, Q., He, Q., Fang, S., Guang, Y., Ma, C., Chen, Y., Kang, Y., Pan, H.,
Zhang, H., and Yao, Y.: Vertical distribution of ambient aerosol extinctive
properties during haze and haze-free periods based on the Micro-Pulse Lidar
observation in Shanghai, Sci. Total Environ., 574, 1502–1511,
https://doi.org/10.1016/j.scitotenv.2016.08.152, 2017.
Liu, Q., Liu, X., Liu, T., Kang, Y., Chen, Y., Li, J., and Zhang, H.:
Seasonal variation in particle contribution and aerosol types in Shanghai
based on satellite data from MODIS and CALIOP, Particuology, 51, 18–25,
https://doi.org/10.1016/j.partic.2019.10.001, 2020b.
Liu, Y., Zhu, Q., Huang, J., Hua, S., and Jia, R.: Impact of dust-polluted
convective clouds over the Tibetan Plateau on downstream precipitation,
Atmos. Environ., 209, 67–77,
https://doi.org/10.1016/j.atmosenv.2019.04.001, 2019a.
Liu, Y., Hua, S., Jia, R., and Huang, J. P.: Effect of Aerosols on the
Ice Cloud Properties Over the Tibetan Plateau, J. Geophys.
Res.-Atmos., 124, 9594–9608, https://doi.org/10.1029/2019jd030463, 2019b.
Lu, X., Mao, F., Pan, Z., Gong, W., Zhu, Y., and Yang, J.: Enhancement of
Atmospheric Stability by Anomalous Elevated Aerosols During Winter in China,
J. Geophys. Res.-Atmos., 125, e2019JD031734, https://doi.org/10.1029/2019jd031734,
2020.
Luo, B., Minnett, P. J., Szczodrak, M., Nalli, N. R., and Morris, V. R.:
Accuracy Assessment of MERRA-2 and ERA-Interim Sea Surface Temperature, Air
Temperature, and Humidity Profiles over the Atlantic Ocean Using AEROSE
Measurements, J. Climate, 33, 6889–6909,
https://doi.org/10.1175/jcli-d-19-0955.1, 2020.
Lv, L., Xiang, Y., Zhang, T., Chai, W., and Liu, W.: Comprehensive study of
regional haze in the North China Plain with synergistic measurement from
multiple mobile vehicle-based lidars and a lidar network, Sci. Total Environ.,
721, 137773, https://doi.org/10.1016/j.scitotenv.2020.137773, 2020.
Ma, X., Wang, C., Han, G., Ma, Y., Li, S., Gong, W., and Chen, J.: Regional
Atmospheric Aerosol Pollution Detection Based on LiDAR Remote Sensing,
Remote Sens., 11, 2339, https://doi.org/10.3390/rs11202339, 2019.
Masonis, S. J.: An intercomparison of aerosol light extinction and
180∘ backscatter as derived using in situ instruments and Raman
lidar during the INDOEX field campaign, J. Geophys. Res.,
107, 8014, https://doi.org/10.1029/2000jd000035, 2002.
McComiskey, A., Schwartz, S. E., Schmid, B., Guan, H., Lewis, E. R.,
Ricchiazzi, P., and Ogren, J. A.: Direct aerosol forcing: Calculation from
observables and sensitivities to inputs, J. Geophys. Res.,
113, D09202, https://doi.org/10.1029/2007jd009170, 2008.
Mehta, M., Singh, N., and Anshumali: Global trends of columnar and
vertically distributed properties of aerosols with emphasis on dust,
polluted dust and smoke – inferences from 10-year long CALIOP observations,
Remote Sens. Environ., 208, 120–132,
https://doi.org/10.1016/j.rse.2018.02.017, 2018.
Mishchenko, M. I., Cairns, B., Hansen, J. E., Travis, L. D., Burg, R.,
Kaufman, Y. J., Vanderlei Martins, J., and Shettle, E. P.: Monitoring of
aerosol forcing of climate from space: analysis of measurement requirements,
J. Quant. Spectrosc. Ra., 88, 149–161,
https://doi.org/10.1016/j.jqsrt.2004.03.030, 2004.
Müller, D.: Saharan dust over a central European EARLINET-AERONET site:
Combined observations with Raman lidar and Sun photometer, J.
Geophys. Res., 108, 4345, https://doi.org/10.1029/2002jd002918, 2003.
Müller, D., Ansmann, A., Mattis, I., Tesche, M., Wandinger, U.,
Althausen, D., and Pisani, G.: Aerosol-type-dependent lidar ratios observed
with Raman lidar, J. Geophys. Res., 112, D16202,
https://doi.org/10.1029/2006jd008292, 2007.
Murayama, T., Okamoto, H., Kaneyasu, N., Kamataki, H., and Miura, K.:
Application of lidar depolarization measurement in the atmospheric boundary
layer: Effects of dust and sea-salt particles, J. Geophys.
Res.-Atmos., 104, 31781–31792,
https://doi.org/10.1029/1999jd900503, 1999.
Murayama, T., Müller, D., Wada, K., Shimizu, A., Sekiguchi, M., and
Tsukamoto, T.: Characterization of Asian dust and Siberian smoke with
multi-wavelength Raman lidar over Tokyo, Japan in spring 2003, Geophys.
Res. Lett., 31,
L23103,
https://doi.org/10.1029/2004gl021105, 2004.
Newsom, R. K., Turner, D. D., Mielke, B., Clayton, M., Ferrare, R., and
Sivaraman, C.: Simultaneous analog and photon counting detection for Raman
lidar, Appl. Opt., 48, 3903–3914, https://doi.org/10.1364/ao.48.003903, 2009.
Nicolae, D., Donovan, D., Zadelhoff, G.-J., Daou, D., Wandinger, U.,
Makoto, A., Vassilis, A., Balis, D., Behrendt, A., Comeron, A., Gibert, F.,
Landulfo, E., McCormick, M. P., Senff, C., Veselovskii, I., and Wandinger,
U.: Earthcare atlid extinction and backscatter retrieval algorithms,
The 28th International Laser Radar Conference, 25–30 June 2017, Politehnica Univ Bucharest, Bucharest, ROMANIA, 176, 02022, https://doi.org/10.1051/epjconf/201817602022, 2018.
Nie, W., Ding, A. J., Xie, Y. N., Xu, Z., Mao, H., Kerminen, V.-M., Zheng, L. F., Qi, X. M., Huang, X., Yang, X.-Q., Sun, J. N., Herrmann, E., Petäjä, T., Kulmala, M., and Fu, C. B.: Influence of biomass burning plumes on HONO chemistry in eastern China, Atmos. Chem. Phys., 15, 1147–1159, https://doi.org/10.5194/acp-15-1147-2015, 2015.
Noh, Y. M., Kim, Y. J., Choi, B. C., and Murayama, T.: Aerosol lidar ratio
characteristics measured by a multi-wavelength Raman lidar system at Anmyeon
Island, Korea, Atmos. Res., 86, 76–87,
https://doi.org/10.1016/j.atmosres.2007.03.006, 2007.
Noh, Y. M., Kim, Y. J., and Müller, D.: Seasonal characteristics of
lidar ratios measured with a Raman lidar at Gwangju, Korea in spring and
autumn, Atmos. Environ., 42, 2208–2224,
https://doi.org/10.1016/j.atmosenv.2007.11.045, 2008.
Novitsky, E. J. and Philbrick, C. R.: Multistatic lidar profiling of urban
atmospheric aerosols, J. Geophys. Res.-Atmos., 110, D07S11,
https://doi.org/10.1029/2004jd004723, 2005.
Omar, A. H., Winker, D. M., Vaughan, M. A., Hu, Y., Trepte, C. R., Ferrare,
R. A., Lee, K.-P., Hostetler, C. A., Kittaka, C., Rogers, R. R., Kuehn, R.
E., and Liu, Z.: The CALIPSO Automated Aerosol Classification and Lidar
Ratio Selection Algorithm, J. Atmos. Ocean. Tech., 26, 1994–2014,
https://doi.org/10.1175/2009jtecha1231.1, 2009.
Painemal, D., Clayton, M., Ferrare, R., Burton, S., Josset, D., and Vaughan, M.: Novel aerosol extinction coefficients and lidar ratios over the ocean from CALIPSO–CloudSat: evaluation and global statistics, Atmos. Meas. Tech., 12, 2201–2217, https://doi.org/10.5194/amt-12-2201-2019, 2019.
Papagiannopoulos, N., Mona, L., Amodeo, A., D'Amico, G., Gumà Claramunt, P., Pappalardo, G., Alados-Arboledas, L., Guerrero-Rascado, J. L., Amiridis, V., Kokkalis, P., Apituley, A., Baars, H., Schwarz, A., Wandinger, U., Binietoglou, I., Nicolae, D., Bortoli, D., Comerón, A., Rodríguez-Gómez, A., Sicard, M., Papayannis, A., and Wiegner, M.: An automatic observation-based aerosol typing method for EARLINET, Atmos. Chem. Phys., 18, 15879–15901, https://doi.org/10.5194/acp-18-15879-2018, 2018.
Pappalardo, G., Amodeo, A., Pandolfi, M., Wandinger, U., Ansmann, A.,
Bosenberg, J., Matthias, V., Amiridis, V., De Tomasi, F., Frioud, M.,
Larlori, M., Komguem, L., Papayannis, A., Rocadenbosch, F., and Wang, X.:
Aerosol lidar intercomparison in the framework of the EARLINET project. 3.
Raman lidar algorithm for aerosol extinction, backscatter, and lidar ratio,
Appl. Opt., 43, 5370–5385, https://doi.org/10.1364/ao.43.005370, 2004.
Pietruczuk, A. and Podgorski, J.: The lidar ratio derived from
sun-photometer measurements at Belsk Geophysical Observatory, Acta
Geophys., 57, 476–493, https://doi.org/10.2478/s11600-009-0006-9, 2009.
Qi, Y., Ge, J., and Huang, J.: Spatial and temporal distribution of MODIS
and MISR aerosol optical depth over northern China and comparison with
AERONET, Chinese Sci. Bull., 58, 2497–2506,
https://doi.org/10.1007/s11434-013-5678-5, 2013.
Ramanathan, V., Chung, C., Kim, D., Bettge, T., Buja, L., Kiehl, J. T.,
Washington, W. M., Fu, Q., Sikka, D. R., and Wild, M.: Atmospheric brown
clouds: impacts on South Asian climate and hydrological cycle, P. Natl.
Acad. Sci. USA, 102, 5326–5333, https://doi.org/10.1073/pnas.0500656102,
2005.
Randel, W. J., Park, M., Emmons, L., Kinnison, D., Bernath, P., Walker, K.
A., Boone, C., and Pumphrey, H.: Asian monsoon transport of pollution to the
stratosphere, Science, 328, 611–613,
https://doi.org/10.1126/science.1182274, 2010.
Reagan, J. A., Apte, M. V., Ben-David, A., and Herman, B. M.: Assessment of
Aerosol Extinction to Backscatter Ratio Measurements Made at 694.3 Nm in
Tucson, Arizona, Aerosol Sci. Tech., 8, 215–226,
https://doi.org/10.1080/02786828808959184, 1988.
Reid, J. S., Hobbs, P. V., Ferek, R. J., Blake, D. R., Martins, J. V.,
Dunlap, M. R., and Liousse, C.: Physical, chemical, and optical properties
of regional hazes dominated by smoke in Brazil, J. Geophys.
Res.-Atmos., 103, 32059–32080, https://doi.org/10.1029/98jd00458,
1998.
Sajadi, M. M., Habibzadeh, P., Vintzileos, A., Shokouhi, S.,
Miralles-Wilhelm, F., and Amoroso, A.: Temperature, Humidity, and Latitude
Analysis to Estimate Potential Spread and Seasonality of Coronavirus Disease
2019 (COVID-19), JAMA Netw. Open., 3, e2011834,
https://doi.org/10.1001/jamanetworkopen.2020.11834, 2020.
Salemink, H. W. M., Schotanus, P., and Bergwerff, J. B.: Quantitative Lidar
at 532nm for Vertical Extinction Profiles and the Effect of Relative
Humidity, Appl. Phys. B, 34, 187–189, https://doi.org/10.1007/BF00697633, 1984.
Shaik, D. S., Kant, Y., Mitra, D., Singh, A., Chandola, H. C., Sateesh, M.,
Babu, S. S., and Chauhan, P.: Impact of biomass burning on regional aerosol
optical properties: A case study over northern India, J. Environ. Manage., 244,
328–343, https://doi.org/10.1016/j.jenvman.2019.04.025, 2019.
Sicard, M., Rocadenbosch, F., Reba, M. N. M., Comerón, A., Tomás, S., García-Vízcaino, D., Batet, O., Barrios, R., Kumar, D., and Baldasano, J. M.: Seasonal variability of aerosol optical properties observed by means of a Raman lidar at an EARLINET site over Northeastern Spain, Atmos. Chem. Phys., 11, 175–190, https://doi.org/10.5194/acp-11-175-2011, 2011.
Singh, U. N., Pappalardo, G., Mizutani, K., Amodeo, A., Mona, L., and
Pandolfi, M.: Systematic measurements of the aerosol
extinction-to-backscatter ratio, P. Soc. Photo-Opt. Ins., 5653, 77–87, 2005.
Song, H.-J., Kim, S., Lee, H., and Kim, K.-H.: Climatology of Tropospheric
Relative Humidity over the Korean Peninsula from Radiosonde and ECMWF
Reanalysis, Atmosphere, 11, 704, https://doi.org/10.3390/atmos11070704, 2020.
Takamura, T., Sasano, Y., and Hayasaka, T.: Tropospheric aerosol optical
properties derived from lidar, sun photometer, and optical particle counter
measurements, Appl. Opt., 33, 7132–7140, https://doi.org/10.1364/AO.33.007132,
1994.
Tesche, M., Ansmann, A., Muller, D., Althausen, D., Engelmann, R., Hu, M.,
and Zhang, Y.: Particle backscatter, extinction, and lidar ratio profiling
with Raman lidar in south and north China, Appl. Opt., 46, 6302–6308,
https://doi.org/10.1364/ao.46.006302, 2007.
Tzanis, C. G., Koutsogiannis, I., Philippopoulos, K., and Deligiorgi, D.:
Recent climate trends over Greece, Atmos. Res., 230, 104623,
https://doi.org/10.1016/j.atmosres.2019.104623, 2019.
Vadrevu, K. P., Ellicott, E., Badarinath, K. V., and Vermote, E.: MODIS
derived fire characteristics and aerosol optical depth variations during the
agricultural residue burning season, north India, Environ. Pollut., 159,
1560–1569, https://doi.org/10.1016/j.envpol.2011.03.001, 2011.
Walker, M., Venable, D., and Whiteman, D. N.: Gluing for Raman lidar systems
using the lamp mapping technique, Appl. Opt., 53, 8535–8543,
https://doi.org/10.1364/AO.53.008535, 2014.
Wandinger, U., Freudenthaler, V., Baars, H., Amodeo, A., Engelmann, R., Mattis, I., Groß, S., Pappalardo, G., Giunta, A., D'Amico, G., Chaikovsky, A., Osipenko, F., Slesar, A., Nicolae, D., Belegante, L., Talianu, C., Serikov, I., Linné, H., Jansen, F., Apituley, A., Wilson, K. M., de Graaf, M., Trickl, T., Giehl, H., Adam, M., Comerón, A., Muñoz-Porcar, C., Rocadenbosch, F., Sicard, M., Tomás, S., Lange, D., Kumar, D., Pujadas, M., Molero, F., Fernández, A. J., Alados-Arboledas, L., Bravo-Aranda, J. A., Navas-Guzmán, F., Guerrero-Rascado, J. L., Granados-Muñoz, M. J., Preißler, J., Wagner, F., Gausa, M., Grigorov, I., Stoyanov, D., Iarlori, M., Rizi, V., Spinelli, N., Boselli, A., Wang, X., Lo Feudo, T., Perrone, M. R., De Tomasi, F., and Burlizzi, P.: EARLINET instrument intercomparison campaigns: overview on strategy and results, Atmos. Meas. Tech., 9, 1001–1023, https://doi.org/10.5194/amt-9-1001-2016, 2016.
Wang, H., He, Q., Chen, Y., and Kang, Y.: Characterization of black carbon
concentrations of haze with different intensities in Shanghai by a
three-year field measurement, Atmos. Environ., 99, 536–545,
https://doi.org/10.1016/j.atmosenv.2014.10.025, 2014.
Wang, L., Lyu, B., and Bai, Y.: Aerosol vertical profile variations with
seasons, air mass movements and local PM2.5 levels in three large China
cities, Atmos. Environ., 224, 117329,
https://doi.org/10.1016/j.atmosenv.2020.117329, 2020a.
Wang, T., Han, Y., Huang, J., Sun, M., Jian, B., Huang, Z., and Yan, H.:
Climatology of Dust-Forced Radiative Heating Over the Tibetan Plateau and
Its Surroundings, J. Geophys. Res.-Atmos., 125, e2020JD032942,
https://doi.org/10.1029/2020jd032942, 2020b.
Wang, W., Huang, J., Zhou, T., Bi, J., Lin, L., Chen, Y., Huang, Z., and Su,
J.: Estimation of radiative effect of a heavy dust storm over northwest
China using Fu-Liou model and ground measurements, J. Quant.
Spectrosc. Ra., 122, 114–126,
https://doi.org/10.1016/j.jqsrt.2012.10.018, 2013.
Wang, W., Gong, W., Mao, F., Pan, Z., and Liu, B.: Measurement and Study of
Lidar Ratio by Using a Raman Lidar in Central China, Int. J. Environ. Res.
Pu., 13, 508, https://doi.org/10.3390/ijerph13050508, 2016.
Wei, C., Wang, M. H., Fu, Q. Y., Dai, C., Huang, R., and Bao, Q.: Temporal
Characteristics and Potential Sources of Black Carbon in Megacity Shanghai,
China, J. Geophys. Res.-Atmos., 125, e2019JD031827,
https://doi.org/10.1029/2019jd031827, 2020.
Welton, E. J., Campbell, J. R., Spinhirne, J. D., and Scott, V. S.: Global
monitoring of clouds and aerosols using a network of micro-pulse lidar
systems, Proc. Spie., 4153, 151–158, https://doi.org/10.1117/12.417040, 2001.
Wu, J., Kong, S., Wu, F., Cheng, Y., Zheng, S., Qin, S., Liu, X., Yan, Q.,
Zheng, H., Zheng, M., Yan, Y., Liu, D., Ding, S., Zhao, D., Shen, G., Zhao,
T., and Qi, S.: The moving of high emission for biomass burning in China:
View from multi-year emission estimation and human-driven forces, Environ.
Int., 142, 105812, https://doi.org/10.1016/j.envint.2020.105812, 2020.
Xiao, M., Yu, Z., Kong, D., Gu, X., Mammarella, I., Montagnani, L., Arain,
M. A., Merbold, L., Magliulo, V., Lohila, A., Buchmann, N., Wolf, S.,
Gharun, M., Hörtnagl, L., Beringer, J., and Gioli, B.: Stomatal response
to decreased relative humidity constrains the acceleration of terrestrial
evapotranspiration, Environ. Res. Lett., 15, 094066,
https://doi.org/10.1088/1748-9326/ab9967, 2020.
Xu, J., Wang, Q., Deng, C., McNeill, V. F., Fankhauser, A., Wang, F., Zheng,
X., Shen, J., Huang, K., and Zhuang, G.: Insights into the characteristics
and sources of primary and secondary organic carbon: High time resolution
observation in urban Shanghai, Environ. Pollut., 233, 1177–1187,
https://doi.org/10.1016/j.envpol.2017.10.003, 2018.
Yan, H. and Wang, T.: Ten Years of Aerosol Effects on Single-Layer Overcast
Clouds over the US Southern Great Plains and the China Loess Plateau,
Adv. Meteorol., 2020, 1–15, https://doi.org/10.1155/2020/6719160,
2020.
Young, S. A., Cutten, D. R., Lynch, M. J., and Davies, J. E.: Lidar-Derived
Variations in the Backscatter-to-Extinction Ratio in Southern-Hemisphere
Coastal Maritime Aerosols, Atmos. Environ., 27, 1541–1551,
https://doi.org/10.1016/0960-1686(93)90154-Q, 1993.
Zarzycki, C. M. and Bond, T. C.: How much can the vertical distribution of
black carbon affect its global direct radiative forcing?, Geophys.
Res. Lett., 37, L20807, https://doi.org/10.1029/2010gl044555, 2010.
Zhang, L., Qiao, L., Lan, J., Yan, Y., and Wang, L.: Three-years monitoring
of PM2.5 and scattering coefficients in Shanghai, China, Chemosphere, 253,
126613, https://doi.org/10.1016/j.chemosphere.2020.126613, 2020.
Zhao, H., Mao, J. D., Zhou, C. Y., and Gong, X.: A method of determining
multi-wavelength lidar ratios combining aerodynamic particle sizer
spectrometer and sun-photometer, J. Quant. Spectrosc.
Ra., 217, 224–228,
https://doi.org/10.1016/j.jqsrt.2018.05.030, 2018.
Zhao, L., Wang, W., Hao, T., Qu, W., Sheng, L., Luo, C., An, X., and Zhou,
Y.: The autumn haze-fog episode enhanced by the transport of dust aerosols
in the Tianjin area, Atmos. Environ., 237, 117669,
https://doi.org/10.1016/j.atmosenv.2020.117669, 2020.
Short summary
The variation in aerosol 355 nm lidar ratio and its influence factors were analyzed in Shanghai. About 90 % of the lidar ratio was distributed in 10 sr–80 sr, with an average of 41.0±22.5 sr, and the lidar ratio decreased with the increase in height. Due to aerosol radiative effects, the vertical slope of the lidar ratio presented a decreasing trend with increasing atmospheric turbidity. A large lidar ratio above 1 km was related to biomass burning aerosols and high relative humidity.
The variation in aerosol 355 nm lidar ratio and its influence factors were analyzed in Shanghai....
Altmetrics
Final-revised paper
Preprint