Skip to content
DraconiticResearch
Search Sources API
186,123 studies31 sourcesUpdated 41 min ago
Peer-reviewedCC BYAtmospheric chemistry and physics

Geostationary observations of atmospheric ammonia over East Asia: spatio-temporal variations revealed by three years of FY-4B/GIIRS measurements

  • Mengya Sheng1,2
  • Runyi Zhou1,2
  • Jiancong Hua1,2
  • Shan Han1,2
  • Shangyi Liu1,3
  • Lin Zhang4,5
  • Wei Wang6,7
  • Ruijun Dang1,8
  • Hansen Cao9,10
  • Zichong Chen11,12
  • Yixuan Gu13,14
  • Mingxu Liu15,16
11 more authors
  • Lu Lee17,16
  • Chengli Qi17,18
  • Feng Lu17,19
  • Changpei Han20,21
  • Mark W. Shephard22,21
  • Nadir Guendouz23,24
  • Camille Viatte23,25,24
  • Lieven Clarisse26,21,24
  • Martin Van Damme27,26,2
  • Cathy Clerbaux28
  • Zhao‐Cheng Zeng28
28 affiliations
  1. 1School of Earth and Space Sciences, Peking University, Beijing 100871, China
  2. 2School of Earth and Space Sciences [Beijing] (Peking University, Haidian District, Beijing - China)
  3. 3Peking University [Beijing] (No.5 Yiheyuan Road Haidian District, Beijing, P.R.China 100871 - China)
  4. 4Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing 100871, China
  5. 5Anhui Institute of Optics and Fine Mechanics (350 Shushanhu Road, Hefei, Anhui, P. R. China - China)
  6. 6Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  7. 7SEAS - Harvard John A. Paulson School of Engineering and Applied Sciences (150 Western Ave, Allston, MA 02134, 29 Oxford Street, Cambridge, MA 02138 - United States)
  8. 8SUSTech - Southern University of Science and Technology (1088 Xueyuan Ave, Nanshan, Shenzhen, Guangdong, 518055 - China)
  9. 9School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
  10. 10HKUST - Hong Kong University of Science and Technology (Clear Water Bay Kowloon Hong Kong - Hong Kong SAR China)
  11. 11Hong Kong University of Science and Technology, Guangzhou 511400, China
  12. 12NUIST - Nanjing University of Information Science and Technology (No.219, Ningliu Road, Nanjing, Jiangsu - China)
  13. 13Jiangsu 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
  14. 14College of Environmental Sciences and Engineering [Peking] (Peking University, Room 116, Old Geoscience Building, PKU 100871 - China)
  15. 15College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
  16. 16NSMC - National Satellite Meteorological Center [Beijing] (46, Zhongguancun Nandajie, Haidian District, Beijing, China - China)
  17. 17Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081, China
  18. 18SITP - Shanghai Institute of Technical Physics (Yutian Road 500, Hongkou , Shanghai - China)
  19. 19ECCC - Environment and Climate Change Canada (Gatineau, Québec - Canada)
  20. 20Key Laboratory of Infrared Science and Technology, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
  21. 21ATMOSPHERE - LATMOS (France)
  22. 22Environment and Climate Change Canada, Toronto, Ontario, M3H 5T4, Canada
  23. 23LATMOS/IPSL, Sorbonne Université, UVSQ, CNRS, 75252 Paris, France
  24. 24SQUARES - Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (50 avenue F. D. Roosevelt, B-1050 Brussels - Belgium)
  25. 25BIRA-IASB - Royal Belgian Institute for Space Aeronomy (Ringlaan 3 Avenue Circulaire 1180 Brussels Belgium - Belgium)
  26. 26Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Brussels Laboratory of the Universe (BLU-ULB), Université libre de Bruxelles (ULB), 1050 Brussels, Belgium
  27. 27Royal Belgian Institute for Space Aeronomy, 1180 Brussels, Belgium
  28. 28Peking University (Beijing, China)
Open at sourceDOICite

Abstract

Satellite observations play a crucial role in quantifying ammonia sources by capturing large-scale variations of atmospheric NH3 concentrations. As the world's first geostationary hyperspectral infrared sounder, the Geostationary Interferometric Infrared Sounder (GIIRS) on board China's FengYun-4 satellite series provides a unique opportunity to monitor the diurnal cycle of NH3. Using NH3 retrievals between July 2022 and June 2025, this study investigates the spatio-temporal variability of NH3 columns over East Asia, with a focus on daytime variations (07:00–19:00 local time) in major agricultural regions. Inter-comparison with polar-orbiting IASI and CrIS data shows that GIIRS NH3 retrievals are consistent in capturing the spatial patterns and temporal dynamics. The NH3 peaks occur between March and July, with the timing shifting from north to south, reflecting regional differences primarily driven by agriculture activities. Validation with ground-based FTIR measurements at Hefei in eastern China demonstrates the accuracy of GIIRS NH3, with a correlation coefficient of 0.77 and an RMSE of 9.67 × 1015 molec/cm2, while reproducing daytime variations observed by FTIR. For major agricultural areas, the NH3 columns generally increase from early morning to late afternoon, reaching 1.10–1.56 times morning levels in summer and spring. Compared with GEOS-CF model simulations, the results reveal pronounced discrepancies in spatial distributions over the Sichuan Basin in southwestern China. These findings highlight the valuable capability of FY-4B/GIIRS in identifying and tracking daytime dynamics of NH3 sources over East Asia, offering new insights beyond current low-Earth orbit (LEO) instruments.

Related

  1. Variations of atmospheric 12CO2 and 13CO2 from the year 1000 to 2024
    W. A. van Wijngaarden, W. Happer
    arXivPreprintCC BY 4.0Full textAtmospheric science & meteorologyarXiv
  2. Water pCO2 and planktonic food web temporal variations and couplings in drainage ditches of organically managed freshwater wetlands
    Marie Anais Perdrau, Pierre Polsenaere, Lilia Mzali +6
    Water ResearchPeer-reviewedLicence not statedFull textEnvironmental science & pollutionHAL
  3. Present-Day Sea Level Variations in Coastal Areas from Daily to Multidecadal Time Scales: Observations and Causes
    A. Cazenave, R. Almar, P. Almeida +13
    Surveys in GeophysicsPeer-reviewedCC BY-NC-ND 4.0Full text1 citedOceanography & cryosphereHAL
  4. NeuPlume: generative inversion of atmospheric point-source emissions from sparse observations
    Lei Wang, Xin Ma
    Atmospheric Chemistry and PhysicsPeer-reviewedCC BY 4.0Full textClimate scienceCrossref
  5. Urban-to-downwind variations in aerosol composition and optical properties in the Paris urban plume from coordinated airborne and ground-based observations
    Chenjie Yu, Ludovico Di Antonio, Peter F. DeCarlo +25
    Atmospheric Chemistry and PhysicsPeer-reviewedCC BY 4.0Full textAtmospheric science & meteorologyCopernicusCrossref

Cite

BibTeXRIS
BibTeX
@article{sheng2026geostationary,
  title = {{Geostationary observations of atmospheric ammonia over East Asia: spatio-temporal variations revealed by three years of FY-4B/GIIRS measurements}},
  author = {Mengya Sheng and Runyi Zhou and Jiancong Hua and Shan Han and Shangyi Liu and Lin Zhang and Wei Wang and Ruijun Dang and Hansen Cao and Zichong Chen and Yixuan Gu and Mingxu Liu and Lu Lee and Chengli Qi and Feng Lu and Changpei Han and Mark W. Shephard and Nadir Guendouz and Camille Viatte and Lieven Clarisse and Martin Van Damme and Cathy Clerbaux and Zhao‐Cheng Zeng},
  journal = {Atmospheric chemistry and physics},
  year = {2026},
  month = jun,
  doi = {10.5194/acp-26-7803-2026},
  url = {https://doi.org/10.5194/acp-26-7803-2026},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Geostationary observations of atmospheric ammonia over East Asia: spatio-temporal variations revealed by three years of FY-4B/GIIRS measurements
AU  - Mengya Sheng
AU  - Runyi Zhou
AU  - Jiancong Hua
AU  - Shan Han
AU  - Shangyi Liu
AU  - Lin Zhang
AU  - Wei Wang
AU  - Ruijun Dang
AU  - Hansen Cao
AU  - Zichong Chen
AU  - Yixuan Gu
AU  - Mingxu Liu
AU  - Lu Lee
AU  - Chengli Qi
AU  - Feng Lu
AU  - Changpei Han
AU  - Mark W. Shephard
AU  - Nadir Guendouz
AU  - Camille Viatte
AU  - Lieven Clarisse
AU  - Martin Van Damme
AU  - Cathy Clerbaux
AU  - Zhao‐Cheng Zeng
PY  - 2026
DA  - 2026/06/03
JO  - Atmospheric chemistry and physics
DO  - 10.5194/acp-26-7803-2026
UR  - https://doi.org/10.5194/acp-26-7803-2026
AB  - Satellite observations play a crucial role in quantifying ammonia sources by capturing large-scale variations of atmospheric NH3 concentrations. As the world's first geostationary hyperspectral infrared sounder, the Geostationary Interferometric Infrared Sounder (GIIRS) on board China's FengYun-4 satellite series provides a unique opportunity to monitor the diurnal cycle of NH3. Using NH3 retrievals between July 2022 and June 2025, this study investigates the spatio-temporal variability of NH3 columns over East Asia, with a focus on daytime variations (07:00–19:00 local time) in major agricultural regions. Inter-comparison with polar-orbiting IASI and CrIS data shows that GIIRS NH3 retrievals are consistent in capturing the spatial patterns and temporal dynamics. The NH3 peaks occur between March and July, with the timing shifting from north to south, reflecting regional differences primarily driven by agriculture activities. Validation with ground-based FTIR measurements at Hefei in eastern China demonstrates the accuracy of GIIRS NH3, with a correlation coefficient of 0.77 and an RMSE of 9.67 × 1015 molec/cm2, while reproducing daytime variations observed by FTIR. For major agricultural areas, the NH3 columns generally increase from early morning to late afternoon, reaching 1.10–1.56 times morning levels in summer and spring. Compared with GEOS-CF model simulations, the results reveal pronounced discrepancies in spatial distributions over the Sichuan Basin in southwestern China. These findings highlight the valuable capability of FY-4B/GIIRS in identifying and tracking daytime dynamics of NH3 sources over East Asia, offering new insights beyond current low-Earth orbit (LEO) instruments.
SN  - 1680-7316
SN  - 1680-7324
ER  -