Antarctic Glaciology Antarctic Sciences Section Julie Palais Program

Antarctic Glaciology Antarctic Sciences Section Julie Palais Program Manager NSF/Office of Polar Programs

Antarctic Glaciology Program • Paleoclimate from ice cores (WAISCORES, ITASE) • Ice dynamics and modeling (WAIS) • Snow/Atmosphere/Ice interactions (ITASE) • Glacial Geology ( Dry Valleys, Antarctic Peninsula) • Other (Remote Sensing, Iceberg Studies) U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

Paleoclimate from Ice Cores • • Taylor Dome Ice Core Vostok Ice Core Siple Dome Ice Core Upcoming WAIS Divide Project Byrd Ice Core Misc. other cores (e. g. South Pole) Shallow cores from ITASE traverses U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

Facilities/Support Services • National Ice Core Laboratory (NICL) • NICL-Science Management Office (NICL-SMO) • Antarctic Glaciological Data Center (AGDC) • Ice Core Drilling Service (ICDS) U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

National Ice Core Laboratory (NICL) NSF-USGS Cooperative Agreement Located at the Denver Federal Center U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

National Ice Core Laboratory (NICL) Ice Core Storage U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

National Ice Core Laboratory (NICL) Core Processing Line U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

National Ice Core Laboratory (NICL) Core Processing Line U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

Ice Core Drilling Services (ICDS) University of Wisconsin-Madison (formerly PICO) • Design, fabrication and operation of ice drilling equipment in both polar regions and high altitude ice caps. • Includes electro-mechanical ice core drills, hot water drills for deep access holes, shot holes for seismic sounding and sub-ice sampling. • Notify relevant NSF program manager when you are requesting ice coring support.

Ice Core Drilling Services (ICDS) University of Wisconsin-Madison

Ice Core Data Gateway 2000 ICWG recommendation: “single point-of-access” for ice core data Participants: – – – Antarctic Glaciological Data Center World Data Center for Paleoclimatology International Ice Core Data Cooperative National Ice Core laboratory contributing scientists and programs U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

Ice Core Data Gateway Status: • On the web: http: //www. ngdc. noaa. gov/paleo/icgate. html • Includes data sets distributed globally • Incorporates metadata records • Data files via ftp U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

West Antarctic Ice Sheet Program (WAIS) U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

West Antarctic Ice Sheet Program (WAIS) Ice Dynamics Studies of the Siple Coast Ice Streams • How will the unstable West Antarctic ice sheet affect future sea level? • How do rapid global climate changes occur? • Future sea-level rise? Annual WAIS Workshop Sept. 29 -Oct. 2, 2004 Algonkian Park, Sterling, Va. U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

West Antarctic Ice Sheet Program (WAIS) Examples of Currently Funded Projects • • • Collaborative Research: West Antarctic Ice Sheet Stability: The Glacial Geologic Record from the Ohio Range of the Horlick Mountains in the Bottleneck (Borns and Mukhopadhyay) Collaborative Research: Tidal Modulation of Ice Stream Flow (Anandakrishnan and Bindschadler) Ice-flow Divide Deduced by a New Analysis of Ice-penetrating Radar Data (Raymond) Airborne Survey of the Amundsen Sea Embayment, Antarctica (Holt et al. ) Collaborative Research: Refining a 500 -kyr Climate Record from the Moulton Blue Ice Field in West Antarctica (Sowers, White, Dunbar) Methyl chloride and methyl bromide in Antarctic ice cores (Saltzman) U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

U. S. - International Trans. Antarctic Scientific Expedition (U. S. -ITASE) U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

U. S. - International Trans. Antarctic Scientific Expedition U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

U. S. - International Trans. Antarctic Scientific Expedition (U. S. -ITASE) • To determine the spatial variability of Antarctic climate over the last 200+ years. • To determine the environmental variability in Antarctica over the last 200+ years. U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

U. S. - International Trans. Antarctic Scientific Expedition (U. S. -ITASE) • • • Meteorology Remote Sensing Geophysics Surface Glaciology Ice Cores U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

Icebergs and Ice Shelves Current Research • Monitoring an Active Rift System at the Front of the Amery Ice Shelf, East Antarctica (Fricker) • Collaborative Research of Earth’s Largest Icebergs ((Mac. Ayeal, Okal, Stearns) • Melting and Calving of Antarctic Ice Shelves (Jacobs) U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004

Antarctic Glaciology Program: Important Web sites • WAIS (http: //igloo. gsfc. nasa. gov/wais/) • WAIS Divide Project (http: //www. dri. edu/People/kendrick/WDSprojmain. htm) • US-ITASE (http: //www. ume. maine. edu/USITASE/) • NICL (http: //www. nicl-smo. sr. unh. edu/) • AGDC (http: //nsidc. org/NSF/AGDC/) U. S. Antarctic Program, New Investigators workshop 23 – 24 August 2004