Arctic Ice Concentration

This NASA Worldview image shows sea ice on 1 July 2019, as observed by AMSR2. For more information, see NSIDC's AMSR-E/AMSR2 Unified Data subsite.

Average Ice Concentration

This image is a frame is from an NSIDC concentration animation. Data source: Sea Ice Index. Data source: Sea Ice Index.

Northern Hemisphere Sea Ice Map

This image is from NSIDC's Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH) product, showing where sea ice was on 1 April 2020. See MASIE for more data and information.

Ice Thickness

These images compare Sentinel SAR (synthetic aperture radar) imagery and observations by ICESat-2. (a) shows altitudes near Ellesmere Island on 1 December 2018. (b) shows altitudes in the Weddell Sea on 29 October 2018. ΔT is the time difference between the Sentinel image and the ICESat‐2 overpass. Yellow arrows highlight examples of floe edges. Red bars are examples of floe size (Copernicus Sentinel Imagery 2019, processed by ESA). –Credit: Kwok et al. 2019.

Ice Surface Temperature

This NASA Worldview image shows sea ice surface temperature on 3 April 2019, as observed by AMSR2.

Last updated: 3 April 2020