Entrained Water in Basal Ice Suppresses Radar Bed‐Echo Power at Active Subglacial Lakes

Autor: B. H. Hills, M. R. Siegfried, D. M. Schroeder

Publikováno v: Geophysical Research Letters, Vol 51, Iss 13, Pp n/a-n/a (2024)

Abstract Subglacial lakes have been mapped across Antarctica with two methods, radio‐echo sounding (RES) and ice‐surface deformation. At sites where both are coincident, these methods typically provide conflicting interpretations about the ice‐

Externí odkaz: https://doaj.org/article/71b6fdc47bc9411d86fa779dab8856cd

Processes influencing heat transfer in the near-surface ice of Greenland's ablation zone

Autor: B. H. Hills, J. T. Harper, T. W. Meierbachtol, J. V. Johnson, N. F. Humphrey, P. J. Wright

Publikováno v: The Cryosphere, Vol 12, Pp 3215-3227 (2018)

To assess the influence of various heat transfer processes on the thermal structure of near-surface ice in Greenland's ablation zone, we compare in situ measurements with thermal modeling experiments. A total of seven temperature strings were inst

Externí odkaz: https://doaj.org/article/12bf512ba3724cc7a5d8f05a0d1c5ed7

Avoiding slush for hot-point drilling of glacier boreholes

Autor: W. T. Elam, Dale P. Winebrenner, Paul M. S. Kintner, B. H. Hills

Publikováno v: Annals of Glaciology. 62:166-170

Water-filled boreholes in cold ice refreeze in hours to days, and prior attempts to keep them open with antifreeze resulted in a plug of slush effectively freezing the hole even faster. Thus, antifreeze as a method to stabilize hot-water boreholes ha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9aa40c0f88d7e39962d110ad8225bb0e
https://doi.org/10.1017/aog.2020.70

ImpDAR: an open-source impulse radar processor

Autor: David A. Lilien, Knut Christianson, Robert W. Jacobel, Joshua Driscol, B. H. Hills

Publikováno v: Lilien, D A, Hills, B H, Driscol, J, Jacobel, R & Christianson, K 2020, ' ImpDAR : an open-source impulse radar processor ', Annals of Glaciology, vol. 61, no. 81, pp. 114-123 . https://doi.org/10.1017/aog.2020.44

Despite widespread use of radio-echo sounding (RES) in glaciology and broad distribution of processed radar products, the glaciological community has no standard software for processing impulse RES data. Dependable, fast and collection-system/platfor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ddad3bbcdd48bd39c876dc888dd6a4b
https://doi.org/10.1017/aog.2020.44

Evidence for surfactant contributing to the gastric mucosal barrier of the horse

Autor: Darren Hodgson, B A Hills, M. T. Ethell

Publikováno v: Equine Veterinary Journal. 32:470-474

This study was undertaken to determine the hydrophobicity of the luminal surface of the equine stomach and to elucidate the ultrastructure of the lining imparting that property. Gastric and duodenal mucosal samples from 5 horses were collected immedi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad8105d08412bb31f8c6a1751b74873c
https://doi.org/10.2746/042516400777584631