UCI glaciologists play key roles on international assessment team
Irvine, Calif., Dec. 19, 2019 – Greenland is losing ice mass seven times faster than in the 1990s, a pace that matches the Intergovernmental Panel on Climate Change’s high-end warming scenario – in which 400 million people would be exposed to coastal flooding by 2100, 40 million more than in the mid-range prediction.
The alarming update resulted from the Ice Sheet Mass Balance Intercomparison Exercise, a project involving...
More accurate maps of bed topography reveal physical processes controlling retreat
Irvine, Calif., March 14, 2018 — Using data from NASA missions observing Earth, researchers at the University of California, Irvine have created new maps of the bed topography beneath a score of glaciers in southeast Greenland, thereby gaining a much better understanding of why some are undergoing rapid retreat and others are relatively stable.
“The undersides of glaciers in deeper valleys are exposed to...
Melting polar ice is causing sea levels to rise around the world, but how much of an increase will the future bring, and where? These are the key questions to be addressed by Isabella Velicogna, UCI Earth system scientist, as a recently named member of NASA’s Sea Level Change Team. She and her research group will work to reduce the uncertainty in global and local sea-level estimates using data from a variety of sources, including the European Space Agency’s CryoSat mission and NASA’s ICESat,...
UCI-created high-resolution charts will inform future ice and sea level forecasts
Irvine, Calif., Nov. 1, 2017 – New maps of Greenland’s coastal seafloor and bedrock beneath its massive ice sheet show that two to four times as many coastal glaciers are at risk of accelerated melting as had previously been thought.
Researchers at the University of California, Irvine, NASA and 30 other institutions have published the most comprehensive, accurate and high-resolution relief maps ever made of...
Data are dramatically increasing knowledge of how the ocean is melting the ice sheet
Irvine, Calif., Feb. 9, 2017 – Less than a year after the first research flight kicked off NASA’s Oceans Melting Greenland campaign, data from the new program are providing a dramatic increase in knowledge of how Greenland’s ice sheet is melting from below. Two new research papers in the journal Oceanography, including one by UCI Earth system scientist Mathieu Morlighem, use OMG observations to document how...
West Greenland’s fjords are vastly deeper than rudimentary models have shown, allowing intruding ocean water to badly undercut glacier faces, which will raise sea levels around the world much faster than previously estimated, a UCI-led research team has found.
Janet Wilson, UC Irvine
West Greenland’s fjords are vastly deeper than rudimentary models have shown, allowing intruding ocean water to badly undercut glacier faces, which will raise sea levels around the world...
An expedition to Greenland with UCI glaciologists reveals ‘time bomb’ effects of global warming
Janet Wilson | UCI Magazine
“Come quickly – look at the glacier!” urges UC Irvine researcher Isabella Velicogna, running to the bow of the Cape Race to gaze at the massive, crumbling face of Eqip Sermia. She’s stunned by what she sees. “So much is gone since a year ago. All that land over there was covered with ice last time.”
It’s mid-August in Greenland’s North Atlantic fjords. UCI glaciologists...
Glaciers in West Greenland are melting 100 times more rapidly at their end points beneath the ocean than they are at their surfaces, according to a UC Irvine/NASA study.
Alan Buis, NASA\’s Jet Propulsion Laboratory
Glaciers in West Greenland are melting 100 times more rapidly at their end points beneath the ocean than they are at their surfaces, according to a UC Irvine/NASA study published online this week in Nature Geoscience.
The study results suggest this undersea melting caused...