K
Knut Christianson
Researcher at University of Washington
Publications - 76
Citations - 2308
Knut Christianson is an academic researcher from University of Washington. The author has contributed to research in topics: Ice stream & Ice shelf. The author has an hindex of 26, co-authored 68 publications receiving 1725 citations. Previous affiliations of Knut Christianson include Courant Institute of Mathematical Sciences & St. Olaf College.
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Journal ArticleDOI
A microbial ecosystem beneath the West Antarctic ice sheet
Brent C. Christner,John C. Priscu,Amanda M. Achberger,Carlo Barbante,S. P. Carter,Knut Christianson,Alexander B. Michaud,Jill A. Mikucki,Andrew C. Mitchell,Mark L. Skidmore,Trista J. Vick-Majors +10 more
TL;DR: The results confirm that aquatic environments beneath the Antarctic ice sheet support viable microbial ecosystems, corroborating previous reports suggesting that they contain globally relevant pools of carbon and microbes that can mobilize elements from the lithosphere and influence Southern Ocean geochemical and biological systems.
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How Much, How Fast?: A Science Review and Outlook for Research on the Instability of Antarctica's Thwaites Glacier in the 21st Century
Ted Scambos,Robin E. Bell,Richard B. Alley,Sridhar Anandakrishnan,David H. Bromwich,Kelly M. Brunt,Knut Christianson,Timothy T. Creyts,Sarah B. Das,R. DeConto,Pierre Dutrieux,Helen A. Fricker,David M. Holland,Joseph A. MacGregor,Brooke Medley,Julien P. Nicolas,David Pollard,Matthew R. Siegfried,Andrew Smith,E.J. Steig,Luke D. Trusel,David G. Vaughan,Patricia L. Yager +22 more
TL;DR: A review of recent research on the West Antarctic Ice Sheet (WAIS) can be found in this paper, where the authors outline further scientific objectives for the area now identified as the most likely to undergo near-term significant change.
Journal ArticleDOI
Dynamic (in)stability of Thwaites Glacier, West Antarctica
Byron R. Parizek,Knut Christianson,Knut Christianson,Sridhar Anandakrishnan,Richard B. Alley,R. T. Walker,R. T. Walker,R. A. Edwards,D. S. Wolfe,G. T. Bertini,S. K. Rinehart,Robert Bindschadler,Sophie Nowicki +12 more
TL;DR: In this article, the authors investigate the impact of spatial resolution within existing data sets, grounding-zone processes, and till rheology on the dynamics of the Thwaites Glacier.
Journal ArticleDOI
Oceanic Forcing of Ice-Sheet Retreat: West Antarctica and More
Richard B. Alley,Sridhar Anandakrishnan,Knut Christianson,Knut Christianson,Huw J. Horgan,Atsu Muto,B. R. Parizek,David Pollard,R. T. Walker,R. T. Walker +9 more
TL;DR: For the Thwaites Glacier, West Antarctica, the threshold may already have been exceeded, although rapid change may be delayed by centuries, and the reduced state will likely involve loss of most of the West Antarctic Ice Sheet, causing >3 m of sea-level rise as mentioned in this paper.
Journal ArticleDOI
Ice-Shelf Tidal Flexure and Subglacial Pressure Variations
R. T. Walker,B. R. Parizek,Richard B. Alley,Sridhar Anandakrishnan,K. L. Riverman,Knut Christianson +5 more
TL;DR: In this paper, the authors developed a model of an ice shelf-ice stream system as a viscoelastic beam partially supported by an elastic foundation, where bed rock near the grounding line acts as a fulcrum, and leverage from the ice shelf dropping at low tide can cause significant uplift in the first few kilometers of grounded ice.