wp_no=1002 wp_name=GOME-2 total and tropospheric NO2 column development list_of_product_IDs=O3M-02,O3M-50,O3M-07,O3M-51,O3M-36,O3M-52,O3M-37,O3M-53 wp_start=03/2017 wp_end=02/2022 wp_responcible=DLR no_of_participants=2 DLR 0.6 0.6 0.6 0.6 0.6 0 15568 BIRA 1 1 1 1 1 0 10000 wp_objectives: The objective of this WP is the continuous development and improvement of the operational total and tropospheric NO2 products. wp_methodology: DOAS algorithm - (BIRA) Optimization of the NO2 fit window - (BIRA) Investigation and correction for time-dependent (and along orbit) slit function changes - (BIRA) Optimisation of retrieval settings for Metop-C AMF/VCD calculation - (BIRA) Implementation of improved surface albedo climatology for AMF calculation - (DLR) Implementation of an improved stratosphere-troposphere separation (STS) algorithm - (DLR) Improved treatment of clouds and aerosols AMF calculations using Cloud as Layers (CAL) - (DLR) Improved error estimates - (DLR) Algorithm adaptation to Metop-C wp_datasources: - GOME-2 level 1 product wp_deliverables: - GOME-2 NO2 column algorithms - Updates to ATBD End