Zobrazeno 1 - 10
of 71
pro vyhledávání: '"HENNING LÖWE"'
Publikováno v:
Journal of Glaciology, Vol 67, Pp 847-861 (2021)
Casting snow is necessary to prevent metamorphism and deformation prior to X-ray micro-computed tomography (μCT) imaging. Current methods are insufficient for large-scale field sampling of snow due to safety considerations associated with the castin
Externí odkaz:
https://doaj.org/article/a9e1afa8c2c34e2a9e58e2e27229d5bc
Publikováno v:
Journal of Glaciology, Vol 66, Pp 658-666 (2020)
Snow appears as a granular material in most engineering applications. We examined the role of grain shape and cohesion in angle of repose experiments, which are a common means for the characterization of granular materials. The role of shape was exam
Externí odkaz:
https://doaj.org/article/4585e8178bc94ea687e97a8ac0d0acb3
Autor:
Rebecca Schlegel, Anja Diez, Henning Löwe, Christoph Mayer, Astrid Lambrecht, Johannes Freitag, Heinrich Miller, Coen Hofstede, Olaf Eisen
Publikováno v:
Annals of Glaciology, Vol 60, Pp 220-230 (2019)
We compared elastic moduli in polar firn derived from diving wave refraction seismic velocity analysis, firn-core density measurements and microstructure modelling based on firn-core data. The seismic data were obtained with a small electrodynamic vi
Externí odkaz:
https://doaj.org/article/6d4615c6d0514f449fde2de5c6e80528
Publikováno v:
Journal of Glaciology, Vol 65, Pp 55-67 (2019)
Snow properties relevant to the fracture processes involved in dry-snow slab avalanche release include weak layer specific fracture energy, slab elastic modulus and density. Various techniques exist to determine these snow mechanical properties, but
Externí odkaz:
https://doaj.org/article/696b5f0764d84bb889f2b7b6e8f1fd4c
Autor:
Maurine Montagnat, Henning Löwe, Neige Calonne, Martin Schneebeli, Margret Matzl, Matthias Jaggi
Publikováno v:
Frontiers in Earth Science, Vol 8 (2020)
The role of near-surface snow processes for the formation of climate signals through densification into deep polar firn is still barely understood. To this end we have analyzed a shallow snow pit (0-3 meters) from EastGRIP (Greenland) and derived hig
Externí odkaz:
https://doaj.org/article/9b885a6ea2054b65b5fa653e217b9c6a
Publikováno v:
Frontiers in Earth Science, Vol 7 (2019)
The snow microstructure is crucial for the mechanical behavior of snow, but is usually simplified in numerical models. In Discrete Element Models (DEM), often used in snow mechanics, the microstructure is typically represented by sphere assemblies. T
Externí odkaz:
https://doaj.org/article/c284d15ddd364acb9539cc54972b986d
It is well known that the snow type can affect the mechanical behavior during slow compression, which may indicate fundamental differences in the deformation mechanisms. To examine these differences, we performed consecutive loading-relaxation tests
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64ddf2acd0dbca6e9c74248f3ebfee53
https://doi.org/10.5194/egusphere-egu23-13274
https://doi.org/10.5194/egusphere-egu23-13274
Autor:
Amy R. Macfarlane, Henning Löwe, Lucille Gimenes, David N. Wagner, Ruzica Dadic, Rafael Ottersberg, Stefan Hämmerle, Martin Schneebeli
Publikováno v:
eISSN
Snow significantly impacts the seasonal growth of Arctic sea ice due to its thermally insulating properties. Various measurements and parametrizations of thermal properties exist, but an assessment of the entire seasonal evolution of thermal conducti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f92fc53ec0dc0e2a7891a5ec64acf35
https://egusphere.copernicus.org/preprints/2023/egusphere-2023-83/
https://egusphere.copernicus.org/preprints/2023/egusphere-2023-83/