Unit Affiliation: Marine and Polar Geophysics, Lamont-Doherty Earth Observatory (LDEO)
Funding will support the IceBridge Campaign collect gravity data, elevation data, and ice thickness within three kilometers of the ice sheet grounding line and along a second line 10km upstream. These data will be used to improve the resolution of the local geoid, constrain the tectonic framework of the underlying bedrock, and to identify sub-ice magnetic features that will affect the gravity interpretation and possible geothermal fluxes.
OUTCOMES: Flew an OIB campaign to Antarctica which collected final Level 2 free-air gravity anomaly data which is now available through the NSIDC IceBridge Data Portal. Level 4 bathymetry data, and Level 3 gravity data are under revision and should be available soon. Three abstracts given and 18 presentations given.
A Study of Atmospheric Dust in the WAIS Divide Ice Core Based on Sr-Nd-Pb-He Isotopes
Advanced Imaging Techniques Combined with In Situ Analyses used to Assess Diagenesis in Benthic Foraminifera
Antarctic Cryospheric Change: Mechanisms and Feedback on Climate
Collaborative Research in IPY: Abrupt Environmental Change in the Larson Ice Shelf System, A Multidisciplinary Approach - Cryosphere and Oceans