Research and Application News
Snow grain size - it matters
29 May 2019
Most of us probably wouldn't think of describing snow in terms of its grain size. However, grain size is fundamental to the amount of sunlight that snow reflects back into space - its albedo. With both snow and albedo part of the climate system, scientists are applying a novel analytical theory to Copernicus Sentinel-3 data and shedding new light on Greenland's changing albedo.
The amount of sunlight absorbed or reflected by Earth's surface drives our climate and weather.
Image credit: GEUS–J. Box / ESA - Greenland snow grain and albedo - a sequence of snow grain size and albedo from the Copernicus Sentinel-3 satellites' Ocean Land and Colour Instruments.