2017 GPR Observations of the Whillans and Mercer Ice Streams and Modeling Results

Abstract: The dataset includes GPS coordinates for crevasse/fracture locations picked from 350MHz and 400Mhz frequency GPR dataset in the Whillans/Mercer Shear Margin along the SALSA traverse route with associated kinematic outputs for each feature (shear strain rate, vorticity, dilatation). GPS coo...

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Bibliographic Details
Main Author: Kaluzienski, Lynn
Format: Dataset
Language:unknown
Published: IEDA: US Antarctic Program Data Center 2020
Subjects:
GPR
GPS
Crevasses
Ice Sheet Flow Model
Ice Shelf Dynamics
Glaciology
Glaciers/Ice Sheet
Snow/Ice
Cryosphere
Antarctica
Whillans Ice Stream
US Antarctic Program Data Center (USAP-DC)
Antarctic
Mercer
The Antarctic
Whillans
Antarc*
Ice Sheet
Ice Shelf
Online Access:http://get.iedadata.org/metadata/iso/601402
Description
Summary:Abstract: The dataset includes GPS coordinates for crevasse/fracture locations picked from 350MHz and 400Mhz frequency GPR dataset in the Whillans/Mercer Shear Margin along the SALSA traverse route with associated kinematic outputs for each feature (shear strain rate, vorticity, dilatation). GPS coordinates are in the Antarctic Polar Stereographic projection (EPSG:3031). The dataset also includes initialization and output files of a numerical ice flow simulation of the region . The Ice Sheet System Model (ISSM) model was used to solve a 100 year transient stress balance solution of the region with ~10 kPA/yr friction increase downstream of the shear margin between the Whillans and Mercer ice streams.

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