Alaska Satellite Facility - Distributed Active Archive Center

Sentinel-1

NASA’s provision of the complete ESA Sentinel-1 synthetic aperture radar (SAR) data archive through the ASF DAAC is by agreement between the U.S. State Department and the European Commission (EC). As part of the Earth-observation Copernicus program, the Sentinel mission will provide scientists with accurate, timely, and easily accessible information to help shape the future of our planet. Content on ASF’s Sentinel web pages is adapted from the ESA Sentinel-1 website.

Sentinel-1 – Applications

With ongoing, all-weather, day-and-night, global Earth data, the Sentinel-1 mission facilitates monitoring and mapping of sea ice, oil-spills, land-surface motion, humanitarian crises, and more.

Sentinel-1 – Observation Plans

The Sentinel-1 SAR observation plan implements a baseline pre-defined mission observation scenario, making optimum use of the SAR duty cycle within the technical constraints of the overall system. This scenario

Sentinel-1 – What is TOPSAR?

TOPSAR: Novel Radar Technique Sentinel-1 uses a cutting-edge SAR technique known as Terrain Observation with Progressive Scans SAR (TOPSAR). TOPSAR enables the Extra Wide Swath (EW) and Interferometric Wide Swath