- 1Yonsei University, Seoul, Korea (jkim2@yonsei.ac.kr)
- 2Seoul National University, Seoul, Korea
- 3Pukyong National University, Busan, Korea
- 4Pusan National University, Busan, Korea
- 5UNIST, Ulsan, Korea
- 6Ewha Womans University, Seoul, Korea
- 7National Institute of Environmental Research, Inchon, Korea
- 8NASA Langley Research Center, Hampton, VA, U.S.A.
The Airborne and Satellite Investigation of Asian Air Quality (ASIA-AQ) campaign took place in February and March 2024 as part of a global initiative to collect detailed atmospheric data across various locations in Asia. This campaign utilized aircraft, satellites, and ground-based instruments to improve the understanding of winter air quality in the region. Since 2020, the Geostationary Environment Monitoring Spectrometer (GEMS) has been providing hourly observations of air quality in Asia for the first time.
During the ASIA-AQ campaign, GEMS data offered comprehensive observations of aerosols, ozone, NO₂, SO₂, HCHO, CHOCHO, and other pollutants over a wide area. These observations were compared with independent measurements from aircraft and ground-based instruments, including high spectral resolution lidar (HSRL), GEO-CAPE Airborne Simulator(GCAS), PANDORA, AERONET etc. This study highlights the intercomparison and evaluation of the GEMS dataset for various scenarios, such as urban pollution, biomass burning, emissions from power plants, and volcanic eruptions observed during the campaign.
How to cite: Kim, J., Park, R., Jeong, U., Lee, H., Kim, J.-H., Park, S., Ahn, M.-H., Chang, L., Lee, W.-J., Hong, H., Jung, Y. J., Bak, J., Kim, M., Kang, W., Chae, Y., Seo, Y., Crawford, J., Janz, S., Judd, L., and Hair, J. W.: Intercomparison of Geostationary Environment Monitoring Spectrometer (GEMS) observations during the ASIA-AQ Field Campaign, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-15056, https://doi.org/10.5194/egusphere-egu25-15056, 2025.
