IceBridge 2012-2015: Gravity and Magnetics

Lead PI: Dr. James R. Cochran , Dr. Robin E. Bell , Kirsty J Tinto

Unit Affiliation: Marine and Polar Geophysics, Lamont-Doherty Earth Observatory (LDEO)

December 2012 - February 2016
Project Type: Research

DESCRIPTION: 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.