Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Structural glaciology"'
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 10, Pp n/a-n/a (2024)
Abstract Long‐term records of the flow patterns and dynamics of surge‐type glaciers improve our understanding of their underlying dynamic processes, and are critical to better resolve their contribution to a changing cryosphere. We adapt a modeli
Externí odkaz:
https://doaj.org/article/328812b0be1840ff94adb9d5f7e1aef3
Publikováno v:
Journal of Glaciology, Vol 69, Pp 811-822 (2023)
Characterising the structures within glaciers can give unique insight into ice motion processes. On debris-covered glaciers, traditional structural glaciological mapping is challenging because the lower glacier is hidden by the supraglacial debris la
Externí odkaz:
https://doaj.org/article/533457f4d0534440afcd0138887aa0c2
Autor:
Harold Lovell, Edward J. Fleming
Publikováno v:
Journal of Glaciology, Vol 69, Pp 141-152 (2023)
We assess the evolution of glaciological structures during the 2003–05 surge in the Paulabreen glacier system, Svalbard. Glaciological structures on the glacier surface were mapped using aerial photographs captured in the early stages of the surge
Externí odkaz:
https://doaj.org/article/c14c5f54a9794ee8b15c04d3043555d1
Autor:
Tom Holt, Neil F Glasser
Publikováno v:
Journal of Glaciology, Vol 68, Pp 927-945 (2022)
Since the mid-20th century, ice shelves around the Antarctic Peninsula have declined in extent and thickness, and some have shown signs of structural instability. Here, using satellite imagery from 1999/2000 to 2019/20 (Landsat 7 and 8, Sentinel-2 an
Externí odkaz:
https://doaj.org/article/08cffa32ff0f4d8f872ea5f9e3b8f6f7
Akademický článek
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Publikováno v:
Journal of Glaciology, Vol 68, Pp 65-76 (2022)
Polycrystalline ice is known to exhibit macroscopic anisotropy in relative permittivity (ɛ) depending on the crystal orientation fabric (COF). Using a new system designed to measure the tensorial components of ɛ, we investigated the dielectric anis
Externí odkaz:
https://doaj.org/article/81ca86f6b9bd48d2a74ba362e8ec65b1
Autor:
Christopher Gerbi, Stephanie Mills, Renée Clavette, Seth Campbell, Steven Bernsen, David Clemens-Sewall, Ian Lee, Robert Hawley, Karl Kreutz, Kate Hruby
Publikováno v:
Journal of Glaciology, Vol 67, Pp 1163-1176 (2021)
Microstructures, including crystallographic fabric, within the margin of streaming ice can exert strong control on flow dynamics. To characterize a natural setting, we retrieved three cores, two of which reached bed, from the flank of Jarvis Glacier,
Externí odkaz:
https://doaj.org/article/56fd78f6e41e40bdacde81da7d90b88d
Publikováno v:
Journal of Glaciology, Vol 67, Pp 875-884 (2021)
In this study, we explore small-scale (~1 to 20 km) thermal-refractive effects on basal geothermal heat flux (BGHF) at subglacial boundaries resulting from lateral thermal conductivity contrasts associated with subglacial topography and geologic cont
Externí odkaz:
https://doaj.org/article/191d0d073a644a12957ef961d39a3ec4
Autor:
Julien Westhoff, Nicolas Stoll, Steven Franke, Ilka Weikusat, Paul Bons, Johanna Kerch, Daniela Jansen, Sepp Kipfstuhl, Dorthe Dahl-Jensen
Publikováno v:
Annals of Glaciology, Vol 62, Pp 191-202 (2021)
Ever since the first deep ice cores were drilled, it has been a challenge to determine their original, in-situ orientation. In general, the orientation of an ice core is lost as the drill is free to rotate during transport to the surface. For shallow
Externí odkaz:
https://doaj.org/article/395687d7ac1444a387037b3bc574cedc
Akademický článek
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