Articles | Volume 17, issue 13
https://doi.org/10.5194/acp-17-8157-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-17-8157-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Investigation of the mixing layer height derived from ceilometer measurements in the Kathmandu Valley and implications for local air quality
Andrea Mues
CORRESPONDING AUTHOR
Institute for Advanced Sustainability Studies (IASS), 14467 Potsdam, Germany
Maheswar Rupakheti
CORRESPONDING AUTHOR
Institute for Advanced Sustainability Studies (IASS), 14467 Potsdam, Germany
Christoph Münkel
Vaisala GmbH, 22607 Hamburg, Germany
Axel Lauer
Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany
Heiko Bozem
Institute for Atmospheric Physics, Johannes Gutenberg University Mainz, Mainz, Germany
Peter Hoor
Institute for Atmospheric Physics, Johannes Gutenberg University Mainz, Mainz, Germany
Tim Butler
Institute for Advanced Sustainability Studies (IASS), 14467 Potsdam, Germany
Mark G. Lawrence
Institute for Advanced Sustainability Studies (IASS), 14467 Potsdam, Germany
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Cited
42 citations as recorded by crossref.
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- An observational study on the variation of black carbon aerosol and source identification over a tropical station in south India K. Rajeevan et al. 10.1016/j.apr.2018.06.009
- Atmospheric boundary layer height from ground-based remote sensing: a review of capabilities and limitations S. Kotthaus et al. 10.5194/amt-16-433-2023
- Wintertime Boundary Layer Evolution and Air Pollution Potential Over the Kathmandu Valley, Nepal R. Regmi et al. 10.1029/2018JD030198
- Characteristics, source apportionment and long-range transport of black carbon at a high-altitude urban centre in the Kashmir valley, North-western Himalaya M. Bhat et al. 10.1016/j.envpol.2022.119295
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- The spatial representativeness of mixing layer height observations in the North China Plain X. Zhu et al. 10.1016/j.atmosres.2018.03.019
- Unexpected deep mixing layer in the Sichuan Basin, China Y. Liu et al. 10.1016/j.atmosres.2020.105300
- Evaluating convective planetary boundary layer height estimations resolved by both active and passive remote sensing instruments during the CHEESEHEAD19 field campaign J. Duncan Jr. et al. 10.5194/amt-15-2479-2022
- The determination of highly time-resolved and source-separated black carbon emission rates using radon as a tracer of atmospheric dynamics A. Gregorič et al. 10.5194/acp-20-14139-2020
- Nitrogenous and carbonaceous aerosols in PM2.5 and TSP during pre-monsoon: Characteristics and sources in the highly polluted mountain valley H. Bhattarai et al. 10.1016/j.jes.2021.06.018
- Assessment of carbonaceous aerosols at Mukteshwar: A high-altitude (~2200 m amsl) background site in the foothills of the Central Himalayas R. Sheoran et al. 10.1016/j.scitotenv.2022.161334
- Light absorption properties of elemental carbon (EC) and water-soluble brown carbon (WS–BrC) in the Kathmandu Valley, Nepal: A 5-year study P. Chen et al. 10.1016/j.envpol.2020.114239
- Machine learning model to accurately estimate the planetary boundary layer height of Beijing urban area with ERA5 data K. Peng et al. 10.1016/j.atmosres.2023.106925
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- Influence of mixing height and atmospheric stability conditions on correlation of NO2 columns and surface concentrations in a Mexico‐United States border region D. Flores‐Jiménez et al. 10.1002/asl.1024
- The effect of wildfires on air quality in Kathmandu, Nepal S. Kuikel et al. 10.1016/j.envadv.2024.100493
- Analysis of differences between thermodynamic and material boundary layer structure: Comparison of detection by ceilometer and microwave radiometer Y. Jiang et al. 10.1016/j.atmosres.2020.105179
- Effectiveness of vehicle-free zone in reducing air pollution J. Khadgi et al. 10.1007/s13762-020-02977-6
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- The role of surface energy fluxes in determining mixing layer heights E. Beamesderfer et al. 10.1016/j.agrformet.2023.109687
- A new algorithm for planetary boundary layer height calculation based on multilayer recognition Y. Pan et al. 10.1016/j.atmosenv.2021.118919
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- Seasonal patterns in rice and wheat residue burning and surface PM2.5 concentration in northern India C. Montes et al. 10.1016/j.aeaoa.2022.100154
- Seasonal and diurnal variations in methane and carbon dioxide in the Kathmandu Valley in the foothills of the central Himalayas K. Mahata et al. 10.5194/acp-17-12573-2017
- Variations in surface ozone and carbon monoxide in the Kathmandu Valley and surrounding broader regions during SusKat-ABC field campaign: role of local and regional sources P. Bhardwaj et al. 10.5194/acp-18-11949-2018
- Mixing layer height estimated from AMDAR and its relationship with PMs and meteorological parameters in two cities in North China during 2014–2017 Z. Lv et al. 10.1016/j.apr.2019.11.017
- Molecular characterization of organic aerosols in the Kathmandu Valley, Nepal: insights into primary and secondary sources X. Wan et al. 10.5194/acp-19-2725-2019
- Ambient air quality in the Kathmandu Valley, Nepal, during the pre-monsoon: concentrations and sources of particulate matter and trace gases M. Islam et al. 10.5194/acp-20-2927-2020
- Variation of trace gases in Kannur Town, a coastal South Indian city R. CT et al. 10.1016/j.envc.2021.100336
42 citations as recorded by crossref.
- Surface ozone over Doon valley of the Indian Himalaya: Characteristics, impact assessment, and model results S. Harithasree et al. 10.1016/j.aeaoa.2024.100247
- An overview of airborne measurement in Nepal – Part 1: Vertical profile of aerosol size, number, spectral absorption, and meteorology A. Singh et al. 10.5194/acp-19-245-2019
- An observational study on the variation of black carbon aerosol and source identification over a tropical station in south India K. Rajeevan et al. 10.1016/j.apr.2018.06.009
- Atmospheric boundary layer height from ground-based remote sensing: a review of capabilities and limitations S. Kotthaus et al. 10.5194/amt-16-433-2023
- Wintertime Boundary Layer Evolution and Air Pollution Potential Over the Kathmandu Valley, Nepal R. Regmi et al. 10.1029/2018JD030198
- Characteristics, source apportionment and long-range transport of black carbon at a high-altitude urban centre in the Kashmir valley, North-western Himalaya M. Bhat et al. 10.1016/j.envpol.2022.119295
- Atmospheric-Boundary-Layer-Height Variation over Mountainous and Urban Sites in Beijing as Derived from Radar Wind-Profiler Measurements R. Solanki et al. 10.1007/s10546-021-00639-9
- The spatial representativeness of mixing layer height observations in the North China Plain X. Zhu et al. 10.1016/j.atmosres.2018.03.019
- Unexpected deep mixing layer in the Sichuan Basin, China Y. Liu et al. 10.1016/j.atmosres.2020.105300
- Evaluating convective planetary boundary layer height estimations resolved by both active and passive remote sensing instruments during the CHEESEHEAD19 field campaign J. Duncan Jr. et al. 10.5194/amt-15-2479-2022
- The determination of highly time-resolved and source-separated black carbon emission rates using radon as a tracer of atmospheric dynamics A. Gregorič et al. 10.5194/acp-20-14139-2020
- Nitrogenous and carbonaceous aerosols in PM2.5 and TSP during pre-monsoon: Characteristics and sources in the highly polluted mountain valley H. Bhattarai et al. 10.1016/j.jes.2021.06.018
- Assessment of carbonaceous aerosols at Mukteshwar: A high-altitude (~2200 m amsl) background site in the foothills of the Central Himalayas R. Sheoran et al. 10.1016/j.scitotenv.2022.161334
- Light absorption properties of elemental carbon (EC) and water-soluble brown carbon (WS–BrC) in the Kathmandu Valley, Nepal: A 5-year study P. Chen et al. 10.1016/j.envpol.2020.114239
- Machine learning model to accurately estimate the planetary boundary layer height of Beijing urban area with ERA5 data K. Peng et al. 10.1016/j.atmosres.2023.106925
- Wintertime aerosol optical and radiative properties in the Kathmandu Valley during the SusKat-ABC field campaign C. Cho et al. 10.5194/acp-17-12617-2017
- Estimating contributions of black and brown carbon to solar absorption from aethalometer and AERONET measurements in the highly polluted Kathmandu Valley, Nepal S. Kim et al. 10.1016/j.atmosres.2020.105164
- Pre-monsoon submicron aerosol composition and source contribution in the Kathmandu Valley, Nepal B. Werden et al. 10.1039/D2EA00008C
- Seasonality of carbonaceous aerosol composition and light absorption properties in Karachi, Pakistan P. Chen et al. 10.1016/j.jes.2019.12.006
- Influence of mixing height and atmospheric stability conditions on correlation of NO2 columns and surface concentrations in a Mexico‐United States border region D. Flores‐Jiménez et al. 10.1002/asl.1024
- The effect of wildfires on air quality in Kathmandu, Nepal S. Kuikel et al. 10.1016/j.envadv.2024.100493
- Analysis of differences between thermodynamic and material boundary layer structure: Comparison of detection by ceilometer and microwave radiometer Y. Jiang et al. 10.1016/j.atmosres.2020.105179
- Effectiveness of vehicle-free zone in reducing air pollution J. Khadgi et al. 10.1007/s13762-020-02977-6
- Particulate matter variability in Kathmandu based on in-situ measurements, remote sensing, and reanalysis data S. Becker et al. 10.1016/j.atmosres.2021.105623
- Development and field testing of an online instrument for measuring the real-time oxidative potential of ambient particulate matter based on dithiothreitol assay J. Puthussery et al. 10.5194/amt-11-5767-2018
- Summertime Urban Mixing Layer Height over Sofia, Bulgaria V. Danchovski 10.3390/atmos10010036
- The effects of meteorological conditions and long-range transport on PM2.5 levels in Hanoi revealed from multi-site measurement using compact sensors and machine learning approach B. Ly et al. 10.1016/j.jaerosci.2020.105716
- The role of surface energy fluxes in determining mixing layer heights E. Beamesderfer et al. 10.1016/j.agrformet.2023.109687
- A new algorithm for planetary boundary layer height calculation based on multilayer recognition Y. Pan et al. 10.1016/j.atmosenv.2021.118919
- WRF and WRF-Chem v3.5.1 simulations of meteorology and black carbon concentrations in the Kathmandu Valley A. Mues et al. 10.5194/gmd-11-2067-2018
- Detection of Upper and Lower Planetary-Boundary Layer Curves and Estimation of Their Heights from Ceilometer Observations under All-Weather Conditions: Case of Athens, Greece H. Kambezidis et al. 10.3390/rs13112175
- Observation and analysis of spatiotemporal characteristics of surface ozone and carbon monoxide at multiple sites in the Kathmandu Valley, Nepal K. Mahata et al. 10.5194/acp-18-14113-2018
- Mixing layer transport flux of particulate matter in Beijing, China Y. Liu et al. 10.5194/acp-19-9531-2019
- Determination and climatology of the diurnal cycle of the atmospheric mixing layer height over Beijing 2013–2018: lidar measurements and implications for air pollution H. Wang et al. 10.5194/acp-20-8839-2020
- Near-Surface Atmospheric Behavior over Complex Tropical Topography in Puerto Rico Dominated by Seasonal Patterns Despite Frequent Environmental Changes A. Van Beusekom & G. González 10.1175/EI-D-21-0020.1
- Seasonal patterns in rice and wheat residue burning and surface PM2.5 concentration in northern India C. Montes et al. 10.1016/j.aeaoa.2022.100154
- Seasonal and diurnal variations in methane and carbon dioxide in the Kathmandu Valley in the foothills of the central Himalayas K. Mahata et al. 10.5194/acp-17-12573-2017
- Variations in surface ozone and carbon monoxide in the Kathmandu Valley and surrounding broader regions during SusKat-ABC field campaign: role of local and regional sources P. Bhardwaj et al. 10.5194/acp-18-11949-2018
- Mixing layer height estimated from AMDAR and its relationship with PMs and meteorological parameters in two cities in North China during 2014–2017 Z. Lv et al. 10.1016/j.apr.2019.11.017
- Molecular characterization of organic aerosols in the Kathmandu Valley, Nepal: insights into primary and secondary sources X. Wan et al. 10.5194/acp-19-2725-2019
- Ambient air quality in the Kathmandu Valley, Nepal, during the pre-monsoon: concentrations and sources of particulate matter and trace gases M. Islam et al. 10.5194/acp-20-2927-2020
- Variation of trace gases in Kannur Town, a coastal South Indian city R. CT et al. 10.1016/j.envc.2021.100336
Discussed (preprint)
Latest update: 16 Aug 2024
Short summary
Ceilometer measurements taken in the Kathmandu Valley, Nepal, were used to study the temporal and spatial evolution of the mixing layer height in the valley. This provides important information on the vertical structure of the atmosphere and can thus also help to understand the mixing of air pollutants (e.g. black carbon) in the valley. The seasonal and diurnal cycles of the mixing layer were found to be highly dependent on meteorology and mainly anticorrelated to black carbon concentrations.
Ceilometer measurements taken in the Kathmandu Valley, Nepal, were used to study the temporal...
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