NASAのインスタグラム(nasagoddard) - 9月13日 02時50分

Operation IceBridge is flying over Greenland to measure how much of the ice sheet has melted over the course of the summer.

This image was taken from an altitude of 28,000 feet during a research flight on Aug. 29. It shows the calving front — the end of the glacier, from where it sheds chunks of ice — of the Zachariae Isstrom glacier in northeast Greenland. The flights, which began on Aug. 25 and will go on until Sept. 21, repeat paths flown this spring and aim to monitor seasonal changes in the elevation of the ice sheet.

Operation IceBridge is NASA's longest-running airborne survey to monitor polar ice. Its mission is to collect data that helps us understand how polar land and sea ice are changing. Operation IceBridge maintains continuity of measurements between ICESat missions, which survey polar ice from space. The planned overlap with ICESat-2 will help scientists validate the satellite's measurements.

Credits: NASA/LVIS TEAM
#earth #ice #nasagoddard #science #space #greenland

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