A new visualization tool for Sentinel-2 products has been made available. It is now possible to quickly compare S2 products from different days and using different RGB composites within a specific area (Tile). Tile selection can be done with a mouse click or by tile name.
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?
We are pleased to inform that Sentinel-1 Ground Range Detected (GRD) Extra Wide (EW) swath mode now are available in satellittdata.no/metadata_search (i.e. Get Data -> National hub). The Sentinel-1 satellites carries a C-band SAR instrumet which is, among others, capable of acquiring radar-"images" of the earth surface independent of clouds in the athmosphere and sunlight.
This interface is focusing on the possibilities opened by accessing data through OPeNDAP. OPeNDAP is a protocol that allows data streaming, in the sense that products are not required to be downloaded, but can be accessed without disk access. This implies that products are converted to NetCDF (SAFE is still available) which enables NBS to offer operations like subsetting and transformation (e.g. reformatting and reprojecting) more or less on the fly. Furthermore, it allows combination of products into spatial or temporal stacks of products for further processing.
Currently only Sentinel-2 is provided in this form, and NBS is working on Sentinel-1 access. Data are slightly postprocessed in NetCDF. All bands in Sentinel-2 are e.g. interpolated to the highest resolution, but using a lossless interpolation that allows users to access the original information.
This interface is the same as offered by e.g. SciHub. All data synchronised to the National Ground Segment are available as SAFE files in this interface.
Alle bilder krediteres: /Copernicus Sentinel data (årstall)/
