The daily and monthly averaged (level 3) trace gas column products from GOME-2 provide information about the vertical column densities of O3, NO2 (total and tropospheric), HCHO, BrO, SO2 and H2O (TCWV) in the atmosphere.
The products:
The research applications of these products are in air quality, human health, climate change, volcanic events, and ozone depletion. Gridded files (resolution 0.25° x 0.25°) are useful in trend analysis and validation.
The algorithm used for the generation of the L3 daily gridded products takes as input the Level 2 reprocessed data generated by DLR, using the GOME Data Processor (GDP) version 4.8 for GOME-2/Metop-A+B, and GOME Data Processor (GDP) version 4.9 for GOME-2/Metop-C. All L3 GOME-2 atmospheric data products are available as netCDF-4 files, separated based on the platform (Metop-A, -B or -C), the species and the temporal period of collection (daily or monthly dataset).
The data can be accessed via AC SAF DLR FTP-site, instructions for access.
The future aim is to release a full data record based on the latest reprocessed L2 data, including merged GOME-2 L3 data. Meanwhile, a L3 dataset based on offline L2 for the period 2007-2023 is now available with demonstrational status. User feedback is highly appreciated.
For more information, contact our User Service Helpdesk or the AC SAF Helpdesk (helpdesk@acsaf.org).
