A part of the rugged and deeply indented coast of northeastern Greenland is featured on this radar picture captured by Copernicus Sentinel-1.
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Greenland is the world’s largest island and about 80% of its floor is roofed by the Greenland Ice Sheet, the second largest ice mass on Earth after the Antarctic Ice Sheet.
This picture combines three acquisitions taken by Sentinel-1’s radar over the identical space in January, February and March 2026. Radar photos are usually not normally in color, however right here every acquisition has been assigned a unique color, and, when overlaid, the ensuing colors symbolize variations which have occurred on the floor between the three scans.
Secure ice will be seen in white within the left of the picture, whereas the shades of gray depict surfaces which have both not modified or modified little or no. Colors are primarily concentrated within the water alongside the coast and present seen adjustments in sort and canopy of the continuously transferring sea ice.
Three principal outlet glaciers are seen within the picture: the 79N (Nioghalvfjerdsfjorden) and the Zachariae Isstrøm to the north and the Storstrømmen to the south. These glaciers represent the principle entrance ends of the Northeast Greenland Ice Stream (NEGIS), a protracted ice stream that connects the inside to the ocean, draining roughly 12–17% of the Greenland Ice Sheet into the North Atlantic by means of these three glaciers.
International warming is driving the speedy melting of the Greenland Ice Sheet. Present ice mass loss is already affecting coastal areas, together with low-lying areas weak to flooding and storm surges. The Greenland Ice Sheet incorporates 12% of the world’s glacier ice and if it melts fully, the worldwide seas will rise by as much as 7 m with catastrophic penalties.
Moreover, any improve in melting from this ice sheet may cause an inflow of freshwater into the North Atlantic, weakening the Gulf Stream and probably significantly affecting the local weather of northern Europe in addition to different continents.
It’s due to this fact important to watch its altering form and the speed at which it’s melting in a sustained method. The Sentinel-1 constellation photos your entire Earth each six days, which is essential for monitoring speedy change. Every satellite tv for pc carries a sophisticated radar instrument that captures photos of Earth’s floor by means of cloud and rain and no matter whether or not it’s day or night time. That is significantly helpful when observing these huge, inaccessible areas that are susceptible to lengthy durations of unhealthy climate and prolonged darkness.
Observations of Greenland runoff from area can be utilized to confirm how local weather fashions simulate ice sheet melting, which can permit improved predictions of how a lot Greenland will contribute to the worldwide rise of sea stage sooner or later.
