Articles | Volume 26, issue 11
https://doi.org/10.5194/acp-26-7803-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-7803-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Jun 2026
Research article |
| 03 Jun 2026
| 03 Jun 2026
Geostationary observations of atmospheric ammonia over East Asia: spatio-temporal variations revealed by three years of FY-4B/GIIRS measurements
Mengya Sheng
School of Earth and Space Sciences, Peking University, Beijing 100871, China
Runyi Zhou
School of Earth and Space Sciences, Peking University, Beijing 100871, China
Jiancong Hua
School of Earth and Space Sciences, Peking University, Beijing 100871, China
Shan Han
School of Earth and Space Sciences, Peking University, Beijing 100871, China
Shangyi Liu
School of Earth and Space Sciences, Peking University, Beijing 100871, China
Lin Zhang
Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing 100871, China
Wei Wang
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
Ruijun Dang
School of Earth and Space Sciences, Peking University, Beijing 100871, China
Hansen Cao
School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
Zichong Chen
Hong Kong University of Science and Technology, Guangzhou 511400, China
Yixuan Gu
Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Joint International Research Laboratory of Climate and Environment Change, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
Mingxu Liu
College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081, China
Chengli Qi
Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081, China
Feng Lu
Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081, China
Changpei Han
Key Laboratory of Infrared Science and Technology, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
Mark W. Shephard
Environment and Climate Change Canada, Toronto, Ontario, M3H 5T4, Canada
Nadir Guendouz
LATMOS/IPSL, Sorbonne Université, UVSQ, CNRS, 75252 Paris, France
Camille Viatte
LATMOS/IPSL, Sorbonne Université, UVSQ, CNRS, 75252 Paris, France
Lieven Clarisse
Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Brussels Laboratory of the Universe (BLU-ULB), Université libre de Bruxelles (ULB), 1050 Brussels, Belgium
Martin Van Damme
Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Brussels Laboratory of the Universe (BLU-ULB), Université libre de Bruxelles (ULB), 1050 Brussels, Belgium
Royal Belgian Institute for Space Aeronomy, 1180 Brussels, Belgium
Cathy Clerbaux
LATMOS/IPSL, Sorbonne Université, UVSQ, CNRS, 75252 Paris, France
Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Brussels Laboratory of the Universe (BLU-ULB), Université libre de Bruxelles (ULB), 1050 Brussels, Belgium
School of Earth and Space Sciences, Peking University, Beijing 100871, China
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Short summary
Geostationary observations of NH3 provide an unprecedented opportunity to monitor spatial and temporal variations in emissions and their evolution throughout the day. Using 3 years of observations from FY-4B/GIIRS over East Asia, we demonstrated the enhanced capability of geostationary observations to identify emission sources and capture daytime variations associated with agricultural activities. This shows the potential of future geostationary satellites for monitoring air quality globally.
Geostationary observations of NH3 provide an unprecedented opportunity to monitor spatial and...
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