Landsat illustrates 5 decades of change to Greenland glaciers
from Sensors & Systems
The glaciers appear brownish grey in this true-color Landsat 8 satellite image from Aug. 12, 2019. The color indicates that the surface has melted, a process that concentrates dust and rock particles and leads to a darker recrystallized ice sheet surface. The darker melt surface in 2019 extends much farther onto the ice sheet than it did in 1972, when the first Landsat satellite gathered data on the area.
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