Cryospheric Research Roundup
Casey To Participate In Ice Core Drilling At South Pole
Kimberly Casey left for the South Pole, Antarctica, on November 8th for the austral summer season to assist in the recovery of an ice core. The ice core will be drilled to a depth of 1500 meters, providing an environmental record spanning approximately 40,000 years that will be used to investigate changes in climate. Dr. Casey will work on ice core logging and recovery efforts at the South Pole for four months. She will also conduct field observations related to her studies of pollutant deposition on ice.
- For more information on the ice core project: http://spicecore.org/
Parkinson Becomes Member of AAAS’ Annual Meeting Scientific Program Committee
The Board of the American Association for the Advancement of Science (AAAS) appointed Claire Parkinson in October to a three-year term on the association's Annual Meeting Scientific Program Committee. The committee is charged with establishing the theme and program tracks of AAAS’ annual meeting, reviewing proposals, and selecting symposia. It is chaired by the AAAS President and is composed of 13 members appointed by the board to reflect the wide range of scientific disciplines represented by the association.
IceBridge Begins 2014 Antarctic Campaign
On October 16, Operation IceBridge began its sixth campaign of research flights over Antarctica to study changes in the continent’s ice sheet, glaciers and sea ice. This year’s airborne campaign, based in Punta Arenas (Chile), will revisit a section of the Antarctic ice sheet that recently was found to be in irreversible decline. The mission also will collect data on Antarctic sea ice, which recently reached a record high coverage. In addition to extending ICESat’s data record over land and sea ice, IceBridge will also help set the stage for ICESat-2 by measuring ice the satellite will fly over.
ARISE Investigates Effects of Sea Ice Loss On Arctic Climate
A new NASA field campaign flew over the Arctic this summer to study the effect of sea ice retreat on Arctic climate. The Arctic Radiation IceBridge Sea and Ice Experiment (ARISE) conducted research flights Aug. 28 through Oct. 1, covering the peak of summer sea ice melt. This was NASA’s first Arctic airborne campaign designed to take simultaneous measurements of ice, clouds and the levels of incoming and outgoing radiation, the balance of which determines the degree of climate warming.
»To learn more about ARISE, read this press release.
Arctic Sea Ice Minimum Continues Below-Average Trend
The 2014 Arctic sea ice minimum, reached on Sept. 17, is the sixth lowest on the satellite record. Over the 2014 summer, Arctic sea ice melted back from its maximum extent reached in March to a coverage area of 5.02 million square kilometers, according to analysis from NASA and National Snow and Ice Data Center scientists. This year’s minimum extent is similar to last year’s and below the 1981-2010 average of 6.22 million square km.
This year’s Arctic sea ice minimum is the 35th in the uninterrupted sea ice record that started with the launch of NASA’s Nimbus 7 satellite in November 1978. Check out this story on how a group of Goddard scientists developed the techniques to study sea ice from space.
Antarctic Sea Ice Reaches Record Maximum
Sea ice surrounding Antarctica reached a new record high extent this year, covering more of the southern oceans than it has since scientists began a long-term satellite record to map sea ice extent in the late 1970s. The upward trend in the Antarctic, however, is only about a third of the magnitude of the rapid loss of sea ice in the Arctic Ocean.
Ice Sheet and Glacier Modelers Meet at Goddard
Lab researchers Sophie Nowicki and Ryan Walker were two of the organizers of the Ice Sheet MIP for CMIP6 meeting, a meeting of ice sheet and glacier modelers that gathered about 35 participants from 10 countries on July 16-18 at the Goddard campus. The sea-level projections made by the glaciological community as part of the Intergovernmental Panel on Climate Change process have often been out of phase with the projections considered by the Coupled Model Intercomparison Project community. A primary focus of this meeting was to develop a plan that will allow ice sheet and glacier models to be better integrated, in order to improve both sea level projections due to changes in the cryosphere and our understanding of the cryosphere in a changing climate.
Lab Participation at 2014 Science Jamboree
The cryopheric sciences laboratory had a strong representation at the 2014 Science Jamboree. Once again, Goddard’s Science and Exploration Directorate offered displays and demonstrations from all science divisions to those participating in the center’s employee engagement activities.
The laboratory had a table displaying several hands-on demonstrations on how glaciers move, ice cores from Greenland, and information on Operation IceBridge. Right next to it, ICESat-2 displayed its Traveling Altimeter Exhibit, a demonstrable mock-up of the upcoming satellite mission that takes “personal elevation profiles” of the participants. In the Hyperwall room, lab member Christopher Shuman gave a presentation displaying a time series of the Antarctic Peninsula.
MABEL’s Alaskan Campaign
Starting this month, scientists from the cryospheric laboratory, together with other researchers, engineers and pilots are going to Fairbanks, Alaska, to fly an airborne test instrument called the Multiple Altimeter Beam Experimental Lidar, or MABEL. MABEL collects data in the same way that the upcoming Ice, Cloud and land Elevation Satellite-2 (ICESat-2)’s instrument will – with lasers and photon-detectors. Between July 12 and August 1, MABEL will fly aboard NASA’s high-altitude ER-2 aircraft as the Arctic sea ice and glaciers are melting. The data from the Alaskan campaign will allow researchers to develop computer programs, or algorithms, to analyze the information ICESat-2 will collect on Arctic summer conditions.
- Check out MABEL’s field blog here
Read more research news in our Research Roundup Archives.
Cryospheric Sciences at NASA Goddard
Cryospheric research at NASA's Goddard Space Flight Center addresses the physics of ice sheets and glaciers, sea ice, snow on ice and land, and their roles in the global climate system.
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