Seas around the world have risen an average of nearly 3 inches since 1992, with some locations rising more than 9 inches due to natural variation, according to the latest satellite measurements from NASA and its partners. An intensive research effort now underway, aided by NASA observations and analysis, points to an unavoidable rise of several feet in the future.
Members of NASA’s new interdisciplinary Sea Level Change Team will discuss recent findings and new agency research efforts during a media teleconference on Aug. 26, 2015, at 12:30 p.m. EDT
The question scientists are grappling with is how quickly will seas rise?
Participating in the briefing: * Michael Freilich, director of NASA’s Earth Science Division at the agency’s headquarters in Washington * Steve Nerem, lead for NASA’s Sea Level Change Team at the University of Colorado in Boulder * Eric Rignot, glaciologist at the University of California, Irvine and NASA's Jet Propulsion Labratory (JPL) in Pasadena, California * Josh Willis, climate scientist at NASA’s JPL
Figure 4 (Rignot) -- Laurence C. Smith, Chair of Geography at University of California, Los Angeles, deployed an autonomous drifter in a meltwater river on the surface of the Greenland ice sheet on July 19, 2015. The floating instrument was quickly swept away by the fast-moving glacial waters and ultimately swallowed by a moulin, a sinkhole in the ice. Although the scientists will never be able to recover the device from the depths of the ice sheet, the measurements it took and transmitted on its way down the waters will help scientists better understand how the network of streams and rivers that forms on the surface of the ice sheet when ice melts in the spring and summer contributes to sea level rise.
Figure 8 (Willis) -- NASA’s new Oceans Melting Greenland (OMG) field campaign will use airborne and shipborne instruments in a six-year effort to better understand how warming ocean waters are interacting with the edge of the ice sheet.
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 18.104.22.168.0