Articles | Volume 18, issue 1
Research article
04 Jan 2024
Research article |  | 04 Jan 2024

Using specularity content to evaluate eight geothermal heat flow maps of Totten Glacier

Yan Huang, Liyun Zhao, Michael Wolovick, Yiliang Ma, and John C. Moore

Data sets

MEaSUREs BedMachine Antarctica, Version 2 [Data Set]. Boulder, Colorado USA M. Morlighem

MEaSUREs InSAR-Based Antarctica Ice Velocity Map, Version 2 E. Rignot, J. Mouginot, and B. Scheuchl

MEaSUREs Antarctic Boundaries for IPY 2007-2009 from Satellite Radar, Version 2 J. Mouginot, B. Scheuchl, and E. Rignot.

Aurora Subglacial Basin GlaDs inputs, outputs and geophysical data C. Dow

Antarctic dataset in NetCDF format Anne M. Le Brocq, Antony J. Payne, and Andreas Vieli

Temperature, lithosphere-asthenosphere boundary, and heat flux beneath the Antarctic Plate inferred from seismic velocities ( Meijian An, Douglas A. Wiens, Yue Zhao, Mei Feng, Andrew Nyblade, Masaki Kanao, Yuansheng Li, Alessia Maggi, and Jean-Jacques Lévêque

A geothermal heat flux map of Antarctica empirically constrained by seismic structure ( W. Shen, D. A. Wiens, A. J. Lloyd, and A. A. Nyblade

Antarctic geothermal heat flux distribution and estimated Curie Depths, links to gridded files Yasmina M. Martos

otten Glacier Thermal Structure L. Zhao, M. Wolovick, Y. Huang, J. Moore, and Y. Ma

Subglacial lakes and their changing role in a warming climate ( S. J. Livingstone et al.

Geothermal heat flux data set based on low resolution observations collected by the CHAMP satellite between 2000 and 2010, and produced from the MF-6 model following the technique described in Fox Maule et al. (2005) M. Purucker

Short summary
Geothermal heat flux (GHF) is an important factor affecting the basal thermal environment of an ice sheet and crucial for its dynamics. But it is poorly defined for the Antarctic ice sheet. We simulate the basal temperature and basal melting rate with eight different GHF datasets. We use specularity content as a two-sided constraint to discriminate between local wet or dry basal conditions. Two medium-magnitude GHF distribution maps rank well, showing that most of the inland bed area is frozen.