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Feb 4, 2024 · This translates to an estimated uplift of 2 meters per century, a rate that far exceeds Greenland’s current sea level rise. Science, sea levels, and Greenland’s uplift. This significant land uplift, as observed by the research team led by Danjal Longfors Berg, a Ph.D. student at DTU Space, is driven by the melting of Greenland’s ice sheet.
Aug 11, 2016 · OMG’s science team, led by principal investigator Josh Willis, has been interested in Greenland’s increased melt rate since NASA’s GRACE satellite observed two trillion tons of ice mass loss from the ice sheet in just a decade. According to Willis, “Greenland has enough ice to raise global sea levels by 20 feet.”.
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Greenland’s ice is melting rapidly, and the melt is accelerating, making it a canary in a coal mine for climate change. For every 360 gigatonnes of ice lost, the ocean rises by 1 millimeter. Since 2002, sea levels have risen by about 2.5 inches, or 63 millimeters. Sea level rise increases coastal flooding and eventually will inundate some ...
Greenland bedrock, at current elevation above sea level. The weight of the ice sheet has depressed the central land area to form a basin lying more than 300 m (980 ft) below sea level, while elevations rise suddenly and steeply near the coast. The ice flows generally to the coast from the centre of the island.
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More than 220 glaciers flow from Greenland into the ocean. Before OMG, scientists figured the ocean water swirling around and under these glaciers had to be contributing to their ice loss. But how much? Teachable Moment: Greenland’s Melting Glaciers Educator Guide: Melting Ice Experiment Satellite observations of sea surface temperature weren’t muc...
The mission’s first job was to map the seafloor around the island to see where deep, warm water can reach glaciers. A contractor completed most of the mapping using a research boat, and OMG Deputy Principal Investigator Eric Rignot of JPL and the University of California, Irvine led smaller surveys in following years to fill in missing sections. To...
OMG’s groundbreaking data has influenced many kinds of Arctic studies besides oceanography. For example, Kristin Laidre of the University of Washington is an internationally known expert on narwhals, Arctic whales with a tusk-like protruding tooth. She and Ian Fenty, an OMG co-principal investigator at JPL, developed a projectthat benefits both mar...
The end of the mission doesn’t mean the end of all new data from the Greenland ocean. In 2021, the team dropped a few longer-lived probes in areas where changes in ocean temperatures or circulation are not fully understood. These probes “winter over” below the surface, continuing to bob up and down through the water to collect data that will be rea...
Jane J. Lee / Andrew Wang Jet Propulsion Laboratory, Pasadena, Calif. 818-354-0307 / 626-379-6874 jane.j.lee@jpl.nasa.gov / andrew.wang@jpl.nasa.gov
Sep. 9, 2021 — Greenland may be best known for its enormous continental scale ice sheet that soars up to 3,000 meters above sea level, whose rapid melting is a leading contributor to global sea ...
Jun 20, 2019 · The Greenland Ice Sheet is the second-largest body of ice in the world, covering roughly 650,000 square miles of Greenland's surface. If it melts completely, it could contribute up to 23 feet (7 meters) of sea level rise, according to a new study using data from NASA's Operation IceBridge. NASA / Jefferson Beck.
