RCM

RADARSAT Constellation Mission

SAR Composite Arctic Imagery (normalized radar cross section)

Polar stereographic Map projection of normalized radar cross section imagery over the Northern Hemisphere

The daily composite of Synthetic Aperture Radar (SAR) Normalized Radar Cross Section (NRCS) imagery covering the Arctic and sub-Arctic maritime regions over a period of one day are available at 1-km resolution. These high-resolution, weather- and time-agnostic measurements of surface backscatter contain detailed information tailored for sea ice classification purposes.

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2026-01-14	New release of CoastWatch Utilities software (v4.1.5)
2026-01-14	Possible service interruption January 20th 1200 -1700Z
2025-11-21	Switch from Himawari-8 to Himawari-9
2025-09-11	Possible disruptions in ASCAT wind and SEVIRI SST products