Zobrazeno 1 - 10
of 16
pro vyhledávání: '"M. R. Siegfried"'
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
Publikováno v:
Earth and Space Science, Vol 10, Iss 11, Pp n/a-n/a (2023)
Abstract The Greenland Ice Sheet is a leading contributor to global sea‐level rise because climate warming has enhanced surface meltwater runoff. Melt rates are particularly sensitive to air temperatures due to feedbacks with albedo. The primary me
Externí odkaz:
https://doaj.org/article/07f01addd10e44d18ba9ea8310aaa1d6
Autor:
H. J. Horgan, L. van Haastrecht, R. B. Alley, S. Anandakrishnan, L. H. Beem, K. Christianson, A. Muto, M. R. Siegfried
Publikováno v:
The Cryosphere, Vol 15, Pp 1863-1880 (2021)
The grounding zone of Whillans Ice Stream, West Antarctica, exhibits an abrupt transition in basal properties from the grounded ice to the ocean cavity over distances of less than 0.5–1 km. Active-source seismic methods reveal the downglacier-most
Externí odkaz:
https://doaj.org/article/119a4956ddb44d3c8055b233ef7ef37f
Publikováno v:
Earth and Space Science, Vol 8, Iss 8, Pp n/a-n/a (2021)
Abstract We use Ice, Cloud, and land Elevation Satellite 2 (ICESat‐2) laser altimetry crossovers and repeat tracks collected over the North Slope of Alaska to estimate ground surface‐height change due to the seasonal freezing and thawing of the a
Externí odkaz:
https://doaj.org/article/79407307728a47d2a5d2d26a512185ec
Publikováno v:
The Cryosphere, Vol 11, Iss 1, Pp 381-405 (2017)
Over the past decade, satellite observations of ice surface height have revealed that active subglacial lake systems are widespread under the Antarctic Ice Sheet, including the ice streams. For some of these systems, additional observations of ice-st
Externí odkaz:
https://doaj.org/article/c1c6a2835a264ecbb719ba35d06243dd
Publikováno v:
The Cryosphere, Vol 7, Iss 3, Pp 797-816 (2013)
George VI Ice Shelf (GVIIS) is located on the Antarctic Peninsula, a region where several ice shelves have undergone rapid breakup in response to atmospheric and oceanic warming. We use a combination of optical (Landsat), radar (ERS 1/2 SAR) and lase
Externí odkaz:
https://doaj.org/article/1d2298e5bb704bba94f0894d00fe281f
Publikováno v:
Earth and Space Science (Hoboken, N.j.)
Earth and Space Science, Vol 8, Iss 8, Pp n/a-n/a (2021)
Earth and Space Science, Vol 8, Iss 8, Pp n/a-n/a (2021)
We use Ice, Cloud, and land Elevation Satellite 2 (ICESat‐2) laser altimetry crossovers and repeat tracks collected over the North Slope of Alaska to estimate ground surface‐height change due to the seasonal freezing and thawing of the active lay
Publikováno v:
Nature Geoscience. 11:615-615
Publikováno v:
Life Sciences. 46:427-433
Two newly discovered oxidation products of linoleic acid (i.e., 9,10-epoxy-12-octadecenoate termed Leukotoxin A, and 12,13-epoxy-9-octadecenoate termed Leukotoxin B) are produced by neutrophils in a variety of species. These substances appear to comb