Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Carl E, Renshaw"'
Autor:
Joshua D. Landis, Daniel Obrist, Jun Zhou, Carl E. Renshaw, William H. McDowell, Christopher J. Nytch, Marisa C. Palucis, Joanmarie Del Vecchio, Fernando Montano Lopez, Vivien F. Taylor
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Soils are a principal global reservoir of mercury (Hg), a neurotoxic pollutant that is accumulating through anthropogenic emissions to the atmosphere and subsequent deposition to terrestrial ecosystems. The fate of Hg in global soils remains
Externí odkaz:
https://doaj.org/article/ba03dc2db6f94b748a1cd0c1ad9716fe
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 11, Pp n/a-n/a (2023)
Abstract The combination of thinning ice, larger waves, and damage due to diurnal thermal cycling motivate the need to better understand the impact of flexing under the action of oceanic waves on the strength of thermally cracked ice. To that end, ne
Externí odkaz:
https://doaj.org/article/f959b5d58f37443781727887c3645370
Publikováno v:
Geophysical Research Letters, Vol 49, Iss 17, Pp n/a-n/a (2022)
Abstract The structural integrity of the arctic sea ice cover is under threat owing largely to the combination of thinning and larger waves. Another contributor may be thermal cracking. In concentrating stress, thermal cracks may weaken the cover. Of
Externí odkaz:
https://doaj.org/article/e563006f9e1a458ca5035ed1df22744d
Publikováno v:
Journal of Glaciology, Vol 67, Pp 182-185 (2021)
Further to systematic experiments on the flexural strength of laboratory-grown, fresh water ice loaded cyclically, this paper describes results from new experiments of the same kind on lake ice harvested in Svalbard. The experiments were conducted at
Externí odkaz:
https://doaj.org/article/a44903a242bf4a54a6bd8632fceaaa97
Publikováno v:
Journal of Glaciology, Vol 66, Pp 556-566 (2020)
Systematic experiments reveal that the flexural strength of freshwater S2 columnar-grained ice loaded normal to the columns increases upon cyclic loading. Specifically, over the range of stress amplitudes 0.1–2.6 MPa the flexural strength increases
Externí odkaz:
https://doaj.org/article/3cdb39a91e0b441fa2992d7ed80d42bf
Publikováno v:
Journal of Glaciology, Vol 64, Pp 443-449 (2018)
The permeability of sea ice can strongly affect the dissipation of wave energy into the ice pack. Sea-ice permeability is known to be impacted by the brine volume fraction and the blockage of flow pathways by the freezing of infiltrating lower salini
Externí odkaz:
https://doaj.org/article/b52bab91742847208e5efdea9c9ff6e8
Publikováno v:
Geology. 51:13-17
Spatial complexity impacts the resilience of river ecosystems by mediating processes that control the sources and sinks of sediment and organic material. Using four independent geochemical tracers and three morphometric indices, we show that downstre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4206d22c0f3484b87168ea46e87d3f6c
https://doi.org/10.1130/g50339.1
https://doi.org/10.1130/g50339.1
Publikováno v:
Journal of Glaciology, Vol 63, Pp 663-669 (2017)
New experiments reveal that the flexural strength of fresh water, columnar-grained ice loaded normal to the columns may be increased by about a factor of two upon reversed cyclic loading at a frequency of ~0.1 Hz at stress amplitudes of 1.3–2.6 MPa
Externí odkaz:
https://doaj.org/article/4e27d5a08de443f5baa1b0a85f19d793
Publikováno v:
Science. 376:1447-1452
Rivers support indispensable ecological functions and human health and infrastructure. Yet limited river sampling hinders our understanding of consequential changes to river systems. Satellite-based estimates of suspended sediment concentration and f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2172821d6bd68abb01b9871e0c71b3f
https://doi.org/10.1126/science.abn7980
https://doi.org/10.1126/science.abn7980
Autor:
Erland M. Schulson, Carl E. Renshaw
Publikováno v:
Annual Review of Earth and Planetary Sciences. 50:323-343
Water ice Ih exhibits brittle behavior when rapidly loaded. Under tension, it fails via crack nucleation and propagation. Compressive failure is more complicated. Under low confinement, cracks slide and interact to form a frictional (Coulombic) fault
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a61ec7ac963c317ed32fab4408c5fde8
https://doi.org/10.1146/annurev-earth-032320-085507
https://doi.org/10.1146/annurev-earth-032320-085507