earth · one frame a day from orbit
Snow cover
Where there is snow on the ground, mapped with the snow index (NDSI) that tells snow apart from cloud.
What it shows
Where there is snow on the ground, mapped with the snow index (NDSI) that tells snow apart from cloud. The date scrubber shows the snow line moving, and gaps under thick cloud are left empty rather than guessed.
Where the data comes from
NASA EOSDIS GIBS: MODIS Terra and VIIRS NOAA-20 NDSI snow cover; daily at about 500 m, clear sky only.
Reading the map
From no snow (dark blue) through pale blue to full snow cover (white).
Units Snow cover (NDSI fraction).
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