AGASEA 4.7 ka Englacial Isochron over the Thwaites Glacier Catchment ...

This file contains internal radar horizon 1 (lm-MERGE-lay9-grg) for West Antarctica, collected during the SOAR/CASERTZ (1991-1996), SOAR/DVD (1999), ATRS (2001), AGASEA (2004-05) and GIMBLE (2013-2014) expeditions. Only data collected in AGASEA is contained in this specific product. This data set is...

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Bibliographic Details
Main Authors: Blankenship, Donald D., Jackson, Charles, Muldoon, Gail R., Young, Duncan A.
Format: Dataset
Language:English
Published: U.S. Antarctic Program (USAP) Data Center 2023
Subjects:
Ice Penetrating Radar
Isochron
AntArchitecture
layers
Radioglaciology
Antarctic
Austin
Thwaites Glacier
West Antarctic Ice Sheet
West Antarctica
Antarc*
Antarctica
Ice Sheet
Online Access:https://dx.doi.org/10.15784/601673
https://www.usap-dc.org/view/dataset/601673
Description
Summary:This file contains internal radar horizon 1 (lm-MERGE-lay9-grg) for West Antarctica, collected during the SOAR/CASERTZ (1991-1996), SOAR/DVD (1999), ATRS (2001), AGASEA (2004-05) and GIMBLE (2013-2014) expeditions. Only data collected in AGASEA is contained in this specific product. This data set is linked to PH.D thesis Muldoon, G. 2018 "West Antarctic Ice Sheet Retreat during the Last Interglacial"Spatial and temporal distributions of accumulation rates on the catchment of Thwaites Glacier, West Antarctica", University of Texas at Austin https://doi.org/10.15781/T23B5WS0D The internal radar horizon (IRH) was traced semi-automatically by Gail R. Muldoon using Haliburtons's Landmark software and picker, in a combination of 2D focused and unfocused data. Depths were calculated using a 2 way velocity in ice of 84.5 m/microsecond, and no firn correction. Isochron age is 4711 (+/- 246 ) years. Funding for this dataset as provided by NSF grants and The G. Unger Vetlesen Foundation. ...

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