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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Format: | Dataset |
Language: | unknown |
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IEDA: US Antarctic Program Data Center
2020
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Online Access: | http://get.iedadata.org/metadata/iso/601402 |
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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