Satellite Imagery Through Winter Darkness

Long hours of winter darkness is an obstacle for collecting good satellite data this time of year in Alaska. Despite the darkness, this SNPP VIIRS pass last night at 1318 UTC turned out information especially well.

This image shows the VIIRS SnowCloud Discriminator, which provides colors to indicate cloud height. Areas in yellow indicate low clouds, and and areas in pink indicate higher clouds.

January 19, 2022, 1315 UTC

Mostly clear skies give this VIIRS DayNight Band image a clear view of the ice in the Bering Sea. Only patchy clouds can be seen over the Brooks Range and north coast. City lights are also visible.

January 19, 2022, 1315 UTC