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Stable Isotope Studies at East Antarctic US ITASE Sites Data DOI: https://doi.org/10.15784/600042 Cite as Steig, E. J. (2009) "Stable Isotope Studies at East Antarctic US ITASE Sites" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/600042. AMD - DIF Record(s) NSF-ANT04-40414_1 Abstract This award supports a project to obtain stable isotope profiles from shallow (<100 m) ice cores from East Antarctica, to add to the growing database of environmental proxy data collected under the auspices of the "ITASE" (International TransAntarctic Scientific Expedition) program. In Antarctica, the instrumental record of climate is particularly short (~40 years except in a few isolated locations on the coast), and ice core proxy data are the only means available for extending this record into the past. The use of stable isotopes of water (18-O/16-O and D/H ratios) from ice cores as proxies for temperature is well established for both very short (i.e. seasonal) and long timescales (centuries, millennia). Using multivariate regression methods and shallow ice cores from West Antarctica, a reconstruction of Antarctic climate over the last ~150 years has been developed which suggests the continent has been warming, on average, at a rate of ~0.2 K/century. Further improving these reconstructions is the chief motivation for further extending the US ITASE project. Ten to fifteen shallow (~100 m) from Victoria Land, East Antarctica will be obtained and analyzed. The core will be collected along a traverse route beginning at Taylor Dome and ending at the South Pole. Age-depth relationships for the cores will be determined through a combination of stable isotopes, visual stratigraphy and seasonal chemical signatures and marker horizons. Reconstructions of Antarctic climate obtained from these cores will be incorporated into the global network of paleoclimate information, which has been important in science, policy and educational contexts. The project will include graduate student and postdoctoral training and field experience. Creator(s): Steig, Eric J. Date Created: 2009-01-01 Repository: USAP-DC (current) - LDEO-LEGACY (original) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: -180, East: 180, South: -90, North: -60 Temporal Extent(s) Start: 2005-09-01 - End: 2009-08-31 Award(s) NSF 0440414 Version: 1 Related Project(s) Stable Isotope Studies at East Antarctic US ITASE Sites Keywords Antarctica Atmosphere Climate Cryosphere Glaciers/ice Sheet Glaciology Ice Core Records Isotope ITASE Meteorology Paleoclimate Satellite Remote Sensing Weather Station Data