Cryosphere Team

VIIRS - Sea Ice Concentration, Ice Thickness, Ice Surface Temperature

Polar stereographic projection of polar sea ice concentrations over the Arctic Ocean and Alaska

VIIRS Sea Ice Concentration, Sea Ice Thickness and Ice Surface Temperature NOAA CoastWatch/OceanWatch/PolarWatch Level 3, Daily and daily 4-day rolling merged, mapped composites in both polar stereographic projections and CW sector mapped for Northern and Southern hemispheres.

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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