Daily AMSR2 Sea ice concentrations



2019 Arctic Sea Ice Minimum

September is the month when the yearly Arctic minimum sea ice extent will be reached. Here we are tracking this year's development. The current lowest extent of 3.8 million square kilometers occured on 3rd September 2019 but the melting season has not concluded yet.


Seasonal Cycle

Diagram: Arctic sea ice extent during previous 7 years

Time Series

Diagram: Arctic sea ice extent since 1972
The maps and time series show a comparison of current ice conditions to previous years. Sea ice extent is the total area of at least 15% ice concentration. Satellite data is available since 1972. More information can be found under Time Series.


MOSAiC Start Region

RV Polarstern

Sea ice concentration map of MOSAiC start region Sea ice concentration map for the vicinity of RV Polarstern
The MOSAiC international Arctic drift expedition (Multidisciplinary drifting Observatory for the Study of Arctic Climate) will start on 20 September 2019. The maps show the sea ice concentration on a 1 km grid from merged MODIS and AMSR2 satellite data for the envisioned start region of the drift on the left and for the vicinity of RV Polarstern on the right.

More details about the merged MODIS and AMSR2 dataset can be found here: Ludwig et al., The Cryosphere, doi:10.5194/tc-13-2051-2019, 2019

Daily Ice Thickness and RV Polarstern Position

SMOS Thin Sea Ice Thickness

RV Polarstern

thickness of thin sea ice RV Polarstern