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Ice thickness and related data over central Marie Byrd Land, West Antarctica (GIMBLE.GR2HI2)
Data DOI:
https://doi.org/10.15784/601001
Cite as
Young, D. A., Blankenship, D. D., & Holt, J. W. (2017) "Ice thickness and related data over central Marie Byrd Land, West Antarctica (GIMBLE.GR2HI2)" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601001.
AMD - DIF Record(s)
Abstract
GIMBLE was proposed as the first systematic aerogeophysical investigation of the subglacial massif underlying central Marie Byrd Land. Aerogeophysically configured Baslers conducted 14 flights from Byrd Surface Camp and WAIS Divide Camp over two field seasons (January 2013 and December 2014). Airborne ice penetrating radar, gravity and magnetics were the primary datasets collected. Level 2 data represent geolocated geophysical properties (e.g ice thickness), derived from Level 1B measurements (e.g. radar echo delay). Dataset structures are based on those used for Operation Ice Bridge, and are line based data in ASCII space delimited .txt files, with a header delimited by leading "#" characters documenting column assignment and metadata. Georefering data is contained in .met files. GIMBLE.GR2HI2 contains line based data (in ASCII space delimited txt files) relating to ice thickness, bed elevation and bed reflectivity, extracted from 1-D focused radargrams by semiautomatic interpretation. Data was acquired using HiCARS2 in ICP5, and MARFA in ICP6. Some data loss occurred in ICP6 (in particular F10,F11, and F14), limiting the lines that were focused. Data reduction was led by D. Young and S. Kempf.
Creator(s):
Young, Duncan A.;
Blankenship, Donald D.;
Kempf, Scott D.;
Quartini, Enrica;
Muldoon, Gail R.;
Powell, Evelyn M.
Date Created:
2017-02-20
Repository:
USAP-DC (current)
Spatial Extent(s)
West: -156, East: -110, South: -80, North: -74.5
Award(s)
Version:
1
References
Keywords
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This dataset has been downloaded 34 times since March 2017 (based on unique date-IP combinations)
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Hosted at Lamont-Doherty Earth Observatory of Columbia University. Site licensed under Creative Commons Attribution-Noncommercial-Share Alike 3.0 |
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Funded by the US National Science Foundation (NSF) |