wp_no=4401 wp_name=Development and maintenance of the trace gas validation facility list_of_product_IDs= wp_start=02/2017 wp_end=2/2022 wp_responsible=BIRA no_of_participants=1 BIRA 2 2 1 0 0 0 10000 wp_objectives: The objective of this work package is to develop and upgrade the existing validation web service system (http://cdop.aeronomie.be) to include: - Near-to-real time monitoring of the quality of the satellite data using preliminary near-to-real time ground-based data from selected stations (link with NDACC and NORS Rapid Delivery databases) and trace gases columns climatologies from satellites - Continuous update and upgrade of the validation web services throughout the length of the GOME-2/Metop-B/C mission to also include novel features such as the direct intercomparison of the two missions, joint time-series, overlapping regions, etc. wp_methodology: - Management of development activities - On-site configuration control (hardware, software, documentation) - Communication with other operational sites and SAF sites - Documentation maintenance wp_datasources: - GOME-2/Metop-A/B/C level 2 total NO2, BrO, SO2, HCHO, CHOCHO data processed by DLR - GOME-2/Metop-A/B/C level 2 tropospheric NO2 and BrO data processed by DLR - IASI/Metop-A/B/C level 2 total SO2 data - SCIAMACHY, OMI level-3 trace gases data - Ground-based DOAS total NO2 and BrO column data from NDACC network - Ground-based MAXDOAS tropospheric NO2, BrO, HCHO, glyoxal, SO2 column data wp_deliverables: - Improved and continuously updated validation website End