NASAのインスタグラム(nasa) - 5月15日 06時38分

Operation IceBridge, NASA's airborne survey of polar ice, has returned from the Umanaq B mission along Greenland's western coast. This view shows a rift on the lower part of Helheim glacier.
This year marks IceBridge's eighth spring campaign of science flights over Arctic sea and land. During the seven previous years of operations in the Arctic, IceBridge has gathered large volumes of data on changes in the elevation of the ice sheet and its internal structure. Measurements from IceBridge have revealed a 460-mile-long (740 kilometers) canyon hiding under a mile of ice and mapped the extent of a vast liquid water aquifer beneath the snow in southern Greenland. IceBridge’s readings of the thickness of sea ice and its snow cover have helped scientists improve forecasts for the summer melt season and have enhanced the understanding of variations in ice thickness distribution from year to year.

Image credit: NASA
#nasa #science #ice #glacier #icebridge #operationicebridge #greenland #earth

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