Articles | Volume 15, issue 4
https://doi.org/10.5194/gmd-15-1477-2022
https://doi.org/10.5194/gmd-15-1477-2022
Development and technical paper
 | 
18 Feb 2022
Development and technical paper |  | 18 Feb 2022

Mapping high-resolution basal topography of West Antarctica from radar data using non-stationary multiple-point geostatistics (MPS-BedMappingV1)

Zhen Yin, Chen Zuo, Emma J. MacKie, and Jef Caers

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Cited articles

Abdollahifard, M. J., Baharvand, M., and Mariéthoz, G.: Efficient training image selection for multiple-point geostatistics via analysis of contours, Comput. Geosci., 128, 41–50, https://doi.org/10.1016/j.cageo.2019.04.004, 2019. 
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Alley, R. B., Holschuh, N., MacAyeal, D. R., Parizek, B. R., Zoet, L., Riverman, K., Muto, A., Christianson, K., Clyne, E., Anandakrishnan, S., Stevens, N. and Collaboration, G.: Bedforms of Thwaites Glacier, West Antarctica: Character and Origin, J. Geophys. Res.-Earth Surf., 126, e2021JF006339, https://doi.org/10.1029/2021JF006339, 2021. 
Almeida, A. S. and Journel, A. G.: Joint simulation of multiple variables with a Markov-type coregionalization model, Math. Geol., 26, 565–588, https://doi.org/10.1007/BF02089242, 1994. 
Arndt, J. E., Schenke, H. W., Jakobsson, M., Nitsche, F. O., Buys, G., Goleby, B., Rebesco, M., Bohoyo, F., Hong, J., Black, J., Greku, R., Udintsev, G., Barrios, F., Reynoso-Peralta, W., Taisei, M., and Wigley, R.: The International Bathymetric Chart of the Southern Ocean (IBCSO) Version 1.0 – A new bathymetric compilation covering circum-Antarctic waters, Geophys. Res. Lett., 40, 3111–3117, https://doi.org/10.1002/grl.50413, 2013. 
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Short summary
We provide a multiple-point geostatistics approach to probabilistically learn from training images to fill large-scale irregular geophysical data gaps. With a repository of global topographic training images, our approach models high-resolution basal topography and quantifies the geospatial uncertainty. It generated high-resolution topographic realizations to investigate the impact of basal topographic uncertainty on critical subglacial hydrological flow patterns associated with ice velocity.
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