The Norwegian Mapping Authority (Kartverket) has produced a cloud free national mosaic from Copernicus Sentinel-2 Level-2A data which has free access and is openly available. The dataset is found here. The mosaic is composed of Sentinel-2 data from June 30 to July 31, 2018. The mosaic consists of the frequency bands B2 to B8, B8A, B11, and B12. The data type is unsigned integer 16. Ancillary vector data is included yielding the dates for the individual tiles.
The Copernicus Sentinel-2 mission has now opened for twilight observations with a Sun-Zenith angle up to 85 degrees starting on the 23rd October. These observation covers high latitudes and are very interesting for norwegian applications in particular.
Currently, the NBS offers to portals; One similar to the poral ESA is using and one that is integrated in satellittdata.no. In the latter portal, the Sentinel products dissiminated are stored in the NetCDF format which, among others, have support for OPeNDAP. We believe that through this approach the threshold is lowered for starting using satellite data. In addition, functionality like subsetting and regridding is possible.
The image is captured by the Sentinel-2A satellite, flying ca. 786 km up in the athmosphere. The image is sentered south of Gardermoen outside Oslo and the question reads: Can you spot the train?