Sentinel Level 3A for Germany is a monthly, cloud-free surface reflectance syntheses produced at the DLR Earth Observation Center using the WASP processor. The Level 3A product provide a weighted average of the non-clouded observations obtained over a 45-day synthesis period, based on the Level 2A MAJA product. Conventional methods for creating time syntheses often use the "best available pixel" method, which selects for each pixel the date for which the best acquisition conditions are available. Best available pixel mosaics are prone to artifacts on the boundary lines between the different dates selected for each pixel. The weighted average method minimizes these artifacts by merging the different dates without clouds, but depends on good cloud masks, which are provided by the MAJA L2A processor.
This service provides the following layers:
Period: starting from July 2015