Likely Basal Thermal State of the Greenland Ice Sheet, Version 2
Data set id:
RDBTS4
DOI: 10.5067/RQO5Q6F6E6LY
This is the most recent version of these data.
Version Summary
The first synthesis relied on inferences from widespread airborne and satellite observations and numerical models, for which most of the underlying data sets have since been updated. Version 2 features a revised synthesis mask of the likely basal thermal state over the Greenland Ice Sheet based on four input sources:

  • Basal temperature fields from ISMIP6 control runs of 10 ice sheet models (Goelzer et al., 2020)

  • Gridded basal melt rate inferred from 1-D modeling of radiostratigraphy (MacGregor et al., 2016)

  • Modeled ratio of surface speed to maximum deformation speed (Joughin et al., 2016)

  • Basal water from radar soundings (Panton and Karlsson, 2015; Leysinger-Vieli et al., 2018; Jordan et al., 2018; Bowling et al., 2019)

Overview

The Likely Basal Thermal State of the Greenland Ice Sheet (GrIS) product contains key data sets that show how the likely basal thermal state was inferred from existing airborne and satellite data sets and recent methods, and provides a synthesis mask of the likely basal thermal state over the Greenland Ice Sheet.
Parameter(s):
THERMAL PROPERTIES
Platform(s):
Aqua, NASA DC-8, P-3B, Terra
Sensor(s):
ACORDS, ICORDS, MCRDS, MCoRDS, MODIS
Data Format(s):
NetCDF
Temporal Coverage:
23 June 1993 to 20 May 2017
Temporal Resolution:
Varies
Spatial Resolution:
5 km
5 km
Spatial Reference System(s):
WGS 84 / NSIDC Sea Ice Polar Stereographic North
EPSG:3413
Spatial Coverage:
N:
83.56
S:
58.91
E:
6.62
W:
-88.33
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

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