Articles | Volume 21, issue 19
https://doi.org/10.5194/acp-21-15259-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-21-15259-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Oct 2021
Research article |
| 13 Oct 2021
| 13 Oct 2021
The Asian tropopause aerosol layer within the 2017 monsoon anticyclone: microphysical properties derived from aircraft-borne in situ measurements
Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
now at: Institute of Energy and Climate Research – IEK8, Forschungszentrum Jülich, Jülich, Germany
Ralf Weigel
Institute for Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany
Francesco Cairo
Institute of Atmospheric Sciences and Climate, ISAC-CNR, Rome, Italy
Jean-Paul Vernier
National Institute of Aerospace, Hampton, Virginia, USA
NASA Langley Research Center, Hampton, Virginia, USA
Armin Afchine
Institute of Energy and Climate Research – IEK7, Forschungszentrum Jülich, Jülich, Germany
Martina Krämer
Institute of Energy and Climate Research – IEK7, Forschungszentrum Jülich, Jülich, Germany
Institute for Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany
Valentin Mitev
Centre Suisse d'Electronique et de Microtechnique, CSEM SA, Neuchâtel, Switzerland
Renaud Matthey
Institut de Physique, Université de Neuchâtel, Neuchâtel, Switzerland
Silvia Viciani
National Institute of Optics, CNR-INO, Sesto Fiorentino, Florence, Italy
Francesco D'Amato
National Institute of Optics, CNR-INO, Sesto Fiorentino, Florence, Italy
Felix Ploeger
Institute of Energy and Climate Research – IEK7, Forschungszentrum Jülich, Jülich, Germany
Terry Deshler
Department of Atmospheric Science, University of Wyoming, Laramie, Wyoming, USA
Stephan Borrmann
Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
Institute for Atmospheric Physics, Johannes Gutenberg University, Mainz, Germany
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Cited
16 citations as recorded by crossref.
- The Flying Laboratory FLab: development and application of a UAS to measure aerosol particles and trace gases in the lower troposphere L. Moormann et al. 10.5194/amt-18-1441-2025
- Chemical analysis of the Asian tropopause aerosol layer (ATAL) with emphasis on secondary aerosol particles using aircraft-based in situ aerosol mass spectrometry O. Appel et al. 10.5194/acp-22-13607-2022
- The realization of autonomous, aircraft-based, real-time aerosol mass spectrometry in the upper troposphere and lower stratosphere A. Dragoneas et al. 10.5194/amt-15-5719-2022
- Characterization of refractory aerosol particles collected in the tropical upper troposphere–lower stratosphere (UTLS) within the Asian tropopause aerosol layer (ATAL) M. Ebert et al. 10.5194/acp-24-4771-2024
- Aerosol Effects on Clear‐Sky Shortwave Heating in the Asian Monsoon Tropopause Layer J. Gao et al. 10.1029/2022JD036956
- A comparative analysis of in situ measurements of high-altitude cirrus in the tropics F. Cairo et al. 10.5194/amt-16-4899-2023
- Aircraft observations of aerosols and BC in autumn over Guangxi Province, China: Diurnal variation, vertical distribution and source appointment S. Liu et al. 10.1016/j.scitotenv.2023.167550
- CARIBIC-AMS: a fully automated aerosol mass spectrometer for operation on routine passenger flights (IAGOS-CARIBIC) – instrument description and first flight application J. Schneider et al. 10.5194/amt-18-5103-2025
- The impact of ammonia on particle formation in the Asian Tropopause Aerosol Layer C. Xenofontos et al. 10.1038/s41612-024-00758-3
- Defining the upper boundary of the Asian Tropopause Aerosol Layer (ATAL) using the static stability S. Raj et al. 10.1016/j.apr.2022.101451
- Quantifying shortwave radiative forcing and heating rates of UTLS aerosols in the Asian summer monsoon anticyclone region V. Santhosh et al. 10.1016/j.jqsrt.2025.109430
- Divergent features of the upper-tropospheric carbonaceous aerosol layer: effects of atmospheric dynamics and pollution emissions in Asia, South America, and Africa D. Wu et al. 10.1088/1748-9326/ad2eef
- A Multimodel Investigation of Asian Summer Monsoon UTLS Transport Over the Western Pacific L. Pan et al. 10.1029/2022JD037511
- In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone – Part 2: NPF inside ice clouds R. Weigel et al. 10.5194/acp-21-13455-2021
- In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone – Part 1: Summary of StratoClim results R. Weigel et al. 10.5194/acp-21-11689-2021
- Causes and Effects of the Long‐Range Dispersion of Carbonaceous Aerosols From the 2019–2020 Australian Wildfires D. Wu et al. 10.1029/2022GL099840
13 citations as recorded by crossref.
- The Flying Laboratory FLab: development and application of a UAS to measure aerosol particles and trace gases in the lower troposphere L. Moormann et al. 10.5194/amt-18-1441-2025
- Chemical analysis of the Asian tropopause aerosol layer (ATAL) with emphasis on secondary aerosol particles using aircraft-based in situ aerosol mass spectrometry O. Appel et al. 10.5194/acp-22-13607-2022
- The realization of autonomous, aircraft-based, real-time aerosol mass spectrometry in the upper troposphere and lower stratosphere A. Dragoneas et al. 10.5194/amt-15-5719-2022
- Characterization of refractory aerosol particles collected in the tropical upper troposphere–lower stratosphere (UTLS) within the Asian tropopause aerosol layer (ATAL) M. Ebert et al. 10.5194/acp-24-4771-2024
- Aerosol Effects on Clear‐Sky Shortwave Heating in the Asian Monsoon Tropopause Layer J. Gao et al. 10.1029/2022JD036956
- A comparative analysis of in situ measurements of high-altitude cirrus in the tropics F. Cairo et al. 10.5194/amt-16-4899-2023
- Aircraft observations of aerosols and BC in autumn over Guangxi Province, China: Diurnal variation, vertical distribution and source appointment S. Liu et al. 10.1016/j.scitotenv.2023.167550
- CARIBIC-AMS: a fully automated aerosol mass spectrometer for operation on routine passenger flights (IAGOS-CARIBIC) – instrument description and first flight application J. Schneider et al. 10.5194/amt-18-5103-2025
- The impact of ammonia on particle formation in the Asian Tropopause Aerosol Layer C. Xenofontos et al. 10.1038/s41612-024-00758-3
- Defining the upper boundary of the Asian Tropopause Aerosol Layer (ATAL) using the static stability S. Raj et al. 10.1016/j.apr.2022.101451
- Quantifying shortwave radiative forcing and heating rates of UTLS aerosols in the Asian summer monsoon anticyclone region V. Santhosh et al. 10.1016/j.jqsrt.2025.109430
- Divergent features of the upper-tropospheric carbonaceous aerosol layer: effects of atmospheric dynamics and pollution emissions in Asia, South America, and Africa D. Wu et al. 10.1088/1748-9326/ad2eef
- A Multimodel Investigation of Asian Summer Monsoon UTLS Transport Over the Western Pacific L. Pan et al. 10.1029/2022JD037511
3 citations as recorded by crossref.
- In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone – Part 2: NPF inside ice clouds R. Weigel et al. 10.5194/acp-21-13455-2021
- In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone – Part 1: Summary of StratoClim results R. Weigel et al. 10.5194/acp-21-11689-2021
- Causes and Effects of the Long‐Range Dispersion of Carbonaceous Aerosols From the 2019–2020 Australian Wildfires D. Wu et al. 10.1029/2022GL099840
Latest update: 30 Oct 2025
Short summary
In 2017, in situ aerosol measurements were conducted aboard the M55 Geophysica in the Asian monsoon region. The vertical particle mixing ratio profiles show a distinct layer (15–18.5 km), the Asian tropopause aerosol layer (ATAL). The backscatter ratio (BR) was calculated based on the aerosol size distributions and compared with the BRs detected by a backscatter probe and a lidar aboard M55, and by the CALIOP lidar. All four methods show enhanced BRs in the ATAL altitude range (max. at 17.5 km).
In 2017, in situ aerosol measurements were conducted aboard the M55 Geophysica in the Asian...
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