Comparison of Cloud Parameters from GOME-2 and Assessment of Cloud Impact on Tropospheric NO₂ and HCHO Retrievals

Abstract

In recent decades, there has been an increasing interest in making use of satellite measurements for identifying trends in atmospheric composition and climate. Instruments like GOME-2 and TROPOMI are dedicated to air-quality and global trace gas monitoring. For the accurate retrieval of columnar information of the trace gases, cloud correction is necessary. This work is meant to examine the quality of the GOME-2 operational cloud product from AC SAF and to propose enhancements of the current dataset to improve the retrieval of the NO2 and HCHO tropospheric gases.

Keywords

• cloud parameters
• oxygen A-band
• TROPOMI and GOME-2 satellite observations