IceMap500 European maximum and minimum sea ice extent maps (2000-2019)

  • Parera-Portell, Joan A.
  • Ubach, Raquel
This dataset contains monthly IceMap500 sea ice extent maps (March and September) from 2000 to 2019, covering the northernmost European sea regions defined by the European Union's Marine Strategy Framework Directive (MSFD), belonging to the Arctic, North-East Atlantic Ocean and the Baltic Sea. IceMap500 is a sea ice detection algorithm that generates accurate sea ice extent maps from MODIS visible and infrared data at 500 m resolution at nadir. The algorithm is built upon the previous IceMap250, and features a new method to correct artefacts in the MODIS cloud mask and additional threshold tests that allow the enlargement of the mapped area, the reduction of potential error sources and a qualitative improvement of the resulting maps. Quality assessment has shown this algorithm produces sea ice presence maps systematically achieving accuracies above 90 % (tested in the European Arctic).
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