IEDA
Dataset Information
Histories of Accumulation, Thickness, and WAIS Divide Location, Antarctica
Data DOI:
https://doi.org/10.7265/N5QR4V2J
Cite as
Waddington, E. D. et al. (2010) "Histories of Accumulation, Thickness, and WAIS Divide Location, Antarctica" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.7265/N5QR4V2J.
AMD - DIF Record(s)
Abstract
This data set contains radar internal layer and ice sheet topography data for two sites in Antarctica, along with associated model results from two studies. This project used geophysical inverse theory and a 2.5 D flowband ice-flow forward model to extract robust transient accumulation patterns from multiple deeper layers. Histories of divide migration, or the movement of the ice sheet and ice-surface evolution are also provided. The data used to solve the inverse problem, and the model solutions are provided. Internal layers, modern ice-surface velocities, and modern ice-sheet geometry at Taylor Mouth are available, as well as the pattern of accumulation inferred by Waddington et al. (2007). Data are available via FTP in Matlab (.mat) format. Supporting information is available as text files (.rtf and .txt).
Creator(s):
Waddington, Edwin D.; Koutnik, Michelle
Date Created:
2010-06-20
Repository:
USAP-DC (current) - NSIDC (original)
Spatial Extent(s)
West: -111.816667, East: -111.816667, South: -79.416667, North: -79.416667
West: 158.716667, East: 158.716667, South: -77.783333, North: -77.783333
Temporal Extent(s)
Start: 2002-01-01 - End: 2004-12-31
Award(s)
Version:
1
References
  1. Waddington, E. D., T. A. Neumann, M. R. Koutnik, H. P. Marshall, and D. L. Morse. 2007. Inference of accumulation-rate patterns from deep layers in glaciers and ice sheets. Journal of Glaciology 53(183), 694-712. (doi:10.3189/002214307784409351)
  2. Neumann, T. A., H. Conway, S. F. Price, E. D. Waddington, G. A. Catania, and D. L. Morse. 2008. Holocene accumulation and ice sheet dynamics in central West Antarctica. Journal of Geophysical Research 113, dio:10.1029/2007JF000764. (doi:10.1029/2007JF000764)
  3. Conway, H. and L. A. Rasmussen. 2009. Recent thinning and migration of the Western Divide, central West Antarctica. Geophysical Research Letters 36, doi:10.1029/2009GL038072. (doi:10.1029/2009GL038072)
  4. Steen-Larsen, H., Waddington, E., & Koutnik, M. (2010). Formulating an inverse problem to infer the accumulation-rate pattern from deep internal layering in an ice sheet using a Monte Carlo approach. Journal of Glaciology, 56(196), 318-332. (doi:10.3189/002214310791968476)
Supplemental Docs
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nsidc0473_UG.pdf
Data Files
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17.1 kB
tm_data.mat
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1.8 kB
tm_data.rtf
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2.9 kB
tm_results.mat
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1.2 kB
tm_results.rtf
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1.5 kB
wais_bdot.txt
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15.1 kB
wais_data.mat
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1.5 kB
wais_data.rtf
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8.8 kB
wais_u_geometry.txt

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