The DLR Geoservices web-server contains tropospheric NO2 column data from the Sentinel-5P/TROPOMI satellite instrument (for Germany and its surrounding regions): https://download.geoservice.dlr.de/SVELD/files/ The data product is an outcome of the S-VELD project, which is funded by the German Federal Ministry of Transport and Digital Infrastructure in the framework of the mFUND-Programme (FKZ: 19F2065A). Two types of Sentinel-5P/TROPOMI NO2 products are available: 1) "Daily/Orbit" product containing tropospheric NO2 column data files for each orbit covering Germany (and its surrounding regions). The daily products are stored in zip-files in the sub-directory: 'daily/' 2) "Monthly" product containing monthly averaged tropospheric NO2 column data covering Germany (and its surrounding regions). The monthly products are stored in zip-files in the sub-directory: 'monthly/' Quick look images are included in the zip-file for download. To download multiple data-files from the DLR Geoservices web-server, you can use download software such as "wget" and "curl". For example, you can use the following "wget" command to download all daily products for one month: "wget -r -nH --cut-dirs=4 https://download.geoservice.dlr.de/SVELD/files/daily/YYYY/MM/" The product user manual (PUM) for the Sentinel-5P/TROPOMI NO2 products can be downloaded at: https://atmos.eoc.dlr.de/sveld/doc/S-VELD_S5P_NO2_PUM.pdf User can also visit the S-VELD pages on the DLR Geoservice web-site for interactive images: https://geoservice.dlr.de/web/maps/de:sveld:orbit https://geoservice.dlr.de/web/maps/de:sveld:monthly The S-VELD data product is produced and distributed by the DLR under the CC-BY-NC 4.0 license. https://creativecommons.org/licenses/by-nc/4.0/ For more information about the S-VELD project, please visit: https://atmos.eoc.dlr.de/sveld Should you have any question or special request, please contact us by email (Ka Lok Chan: Ka.Chan@dlr.de).