- 1German Aerospace Center, Remote Sensing Technology Institute, Weßling, Germany (ronny.lutz@dlr.de)
- 2European Space Agency, ESA ESRIN, Frascati, Italy
- 3Environmental Satellite Center, Climate and Air Quality research Department, National Institute of Environmental Research (NIER), South-Korea
- 4Yonsei University, Department of Atmospheric Sciences, Seoul, South Korea
The PEGASOS project (Product Evaluation of GEMS L2 via Assessment with Sentinel-5P and other Sensors) aims at the evaluation of the operational GEMS L2 data products Ozone (total, tropospheric, profile), NO2, SO2, HCHO as well as cloud-, aerosol- and surface parameters. For the evaluation of the GEMS L2 products, comparisons with space-borne instruments (including TROPOMI/S5P, OMI/Aura, GOME-2/MetOP-ABC, VIIRS/S-NPP, AMI/GK-2A, CALIOP/CALIPSO) and with ground-based measurements/networks (ozone-sondes, Dobson, Brewer, Max-DOAS, NDACC, PGN) are performed.
In a second phase, comparisons for TEMPO with those LEO and ground-based measurements are planned to be included in the PEGASOS project.
In this contribution we provide an overview of the PEGASOS project and summarize the activities performed so far for evaluating the GEMS L2 data products mentioned above. The ESA-funded PEGASOS project is coordinated by the German Aerospace Center (DLR) and the consortium is completed by the Aristotle University of Thessaloniki (AUTH), the Royal Belgian Institute for Space Aeronomy (BIRA-IASB), and the Institute for Environmental Physics of the University of Bremen (IUP-UB).
How to cite: Lutz, R., Loyola, D., Zehner, C., Lee, W.-J., Hong, H., and Kim, J.: The PEGASOS project for comparisons of Geo-Ring data with LEO and ground based data, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-17580, https://doi.org/10.5194/egusphere-egu25-17580, 2025.
