Copernicus Sentinel-1
The -1 Synthetic Aperture Radar (SAR) instrument is particularly suited for the assessment of land use/ land cover, soil moisture, water content and frost/thaw state. A variety of applications for this sensor’s data can be envisioned, e.g. ship routing in arctic conditions, agriculture, vegetation and oil spills monitoring.
You can find all information on mission objectives, satellite description, instrumental payload and data products on ESA website:
https://sentinel.esa.int/web/sentinel/missions/sentinel-1