Articles | Volume 18, issue 17
https://doi.org/10.5194/amt-18-4347-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-4347-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Sep 2025
Research article |
| 10 Sep 2025
| 10 Sep 2025
Temperature-constrained lidar retrieval of planetary boundary layer height over Chiang Mai, Thailand
Ronald Macatangay
CORRESPONDING AUTHOR
Center for Atmospheric Science Research, National Astronomical Research Institute of Thailand, Don Kaeo, Mae Rim District, Chiang Mai 50180, Thailand
Thiranan Sonkaew
CORRESPONDING AUTHOR
Science Faculty, Lampang Rajabhat University, Chomphu, Mueang, Lampang 52100, Thailand
Sherin Hassan Bran
Center for Atmospheric Science Research, National Astronomical Research Institute of Thailand, Don Kaeo, Mae Rim District, Chiang Mai 50180, Thailand
Worapop Thongsame
Department of Mechanical Engineering, University of Colorado, Boulder, CO 80309, USA
Titaporn Supasri
Center for Atmospheric Science Research, National Astronomical Research Institute of Thailand, Don Kaeo, Mae Rim District, Chiang Mai 50180, Thailand
Mana Panya
Center for Atmospheric Science Research, National Astronomical Research Institute of Thailand, Don Kaeo, Mae Rim District, Chiang Mai 50180, Thailand
now at: Department of Highland Agriculture and Natural Resources/Agriculture and Forestry Climate Change Research Center (AFCC), Faculty of Agriculture, Chiang Mai University, Mueang Chiang Mai District, Chiang Mai 50200, Thailand
Jeerasak Longmali
Center for Atmospheric Science Research, National Astronomical Research Institute of Thailand, Don Kaeo, Mae Rim District, Chiang Mai 50180, Thailand
Raman Solanki
Indian Institute of Tropical Meteorology (IITM), Pune, India
independent researcher: Delhi, India
Ben Svasti Thomson
Blue Sky Chiang Mai, Chiang Mai, Thailand
Achim Haug
Air Gradient, Chiang Mai, Thailand
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Asia produces half of the world's air pollution, yet emission estimates from different sources disagree widely. We assimilated satellite observations of six pollutant species to correct both concentrations and emissions. Aircraft measurements from a 2024 NASA campaign across four Asian countries confirmed the improvements. Our results reveal underreported emissions in some countries, overestimated vegetation emissions, unresolved fire estimates, and weather control on cross-border pollution.
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Asia produces half of the world's air pollution, yet emission estimates from different sources disagree widely. We assimilated satellite observations of six pollutant species to correct both concentrations and emissions. Aircraft measurements from a 2024 NASA campaign across four Asian countries confirmed the improvements. Our results reveal underreported emissions in some countries, overestimated vegetation emissions, unresolved fire estimates, and weather control on cross-border pollution.
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Short summary
Air pollution affects climate and health, but accurately measuring how pollutants mix in the atmosphere remains challenging. In Chiang Mai, Thailand, we developed a new light detection and ranging (lidar)-based method to better distinguish key atmospheric layers by incorporating temperature-based adjustments. This improves accuracy, especially at night, compared to traditional techniques. Our findings help refine air quality models and provide better data for tackling pollution in Southeast Asia.
Air pollution affects climate and health, but accurately measuring how pollutants mix in the...
