Josh Willis is the principal investigator for NASA's Oceans Melting Greenland (OMG) project, a five-year, multi-pronged investigation of the ocean's role in melting Greenland's ice sheet from the edges, driving global sea levels higher. OMG involves measuring the ice and oceans using aircraft, and the shape and depth of the sea floor from aircraft and ships as well. Willis also is the NASA project scientist for the Jason-3 satellite, launched in January 2016 to continue more than 20 years of sea-level monitoring from orbit. Willis also is a member of NASA's Sea Level Rise Team. He is based at NASA's Jet Propulsion Laboratory in Pasadena, California, where he began as a postdoctoral scholar in 2004 and joined the lab as a scientist in 2006. See updates on the OMG mission on Willis's Facebook page.
From 2009 through 2019, NASA’s Operation IceBridge flew above the Arctic, Antarctic and Alaska, gathering data on the height, depth, thickness, flow and change of sea ice, glaciers and ice sheets.
A new study finds that the Greenland Ice Sheet has lost 3.8 trillion tons of ice between 1992 and 2018.
Adapting to rising seas will require a broader understanding of coastal systems, and of human responses to sea-level rise, a new study says.
An elephant seal helps scientists understand how the ocean transports heat between its upper and lower layers — important for estimating how much heat the ocean can absorb.
The U.S. and Europe are working together on the first 10-year mission to study global warming's effect on the oceans, extending sea level records to nearly 40 years.