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Can carbon storage in West Antarctic fjords have an impact on climate change, following glacier retreat? 期刊论文
Global Change Biology, 2021
作者:  William R. Hunter
收藏  |  浏览/下载:5/0  |  提交时间:2022/01/29
Glacier retreat creating new Pacific salmon habitat in western North America 期刊论文
Nature Communications, 2021
作者:  Pitman, Kara J.;  Moore, Jonathan W.;  Huss, Matthias;  Sloat, Matthew R.;  Whited, Diane C.;  Beechie, Tim J.;  Brenner, Rich;  Hood, Eran W.;  Milner, Alexander M.;  Pess, George R.;  Reeves, Gordan H.;  Schindler, Daniel E.
收藏  |  浏览/下载:10/0  |  提交时间:2021/12/15
Response of Antarctic soil fauna to climate-driven changes since the Last Glacial Maximum 期刊论文
Global Change Biology, 2021
作者:  André;  L. C. Franco;  Byron J. Adams;  Melisa A. Diaz;  Nathan P. Lemoine;  Nicholas B. Dragone;  Noah Fierer;  W. Berry Lyons;  Ian Hogg;  Diana H. Wall
收藏  |  浏览/下载:11/0  |  提交时间:2021/11/15
Quantification of blue carbon pathways contributing to negative feedback on climate change following glacier retreat in West Antarctic fjords 期刊论文
Global Change Biology, 2021
作者:  Nadescha Zwerschke;  Chester J. Sands;  Alejandro Roman-Gonzalez;  David K. A. Barnes;  Alice Guzzi;  Stuart Jenkins;  Carlos Muñ;  oz-Ramí;  rez;  James Scourse
收藏  |  浏览/下载:12/0  |  提交时间:2021/10/22
Is the marine ice cliff hypothesis collapsing? 期刊论文
Science, 2021
作者:  Nicholas R. Golledge;  Daniel P. Lowry
收藏  |  浏览/下载:22/0  |  提交时间:2021/06/24
Transition to marine ice cliff instability controlled by ice thickness gradients and velocity 期刊论文
Science, 2021
作者:  J. N. Bassis;  B. Berg;  A. J. Crawford;  D. I. Benn
收藏  |  浏览/下载:8/0  |  提交时间:2021/06/24
Impacts of climate change on aquatic insects in temperate alpine regions: Complementary modeling approaches applied to Swiss rivers 期刊论文
Global Change Biology, 2021
作者:  Pablo Timoner;  Marc Fasel;  Seyed Saeid Ashraf Vaghefi;  Pierre Marle;  Emmanuel Castella;  Fré;  ;  ric Moser;  Anthony Lehmann
收藏  |  浏览/下载:6/0  |  提交时间:2021/06/07
Spatiotemporal Drivers of Hydrochemical Variability in a Tropical Glacierized Watershed in the Andes 期刊论文
Water Resources Research, 2021
作者:  Leila Saberi;  G.‐;  H. Crystal Ng;  Leah Nelson;  Wei Zhi;  Li Li;  Jeff La Frenierre;  Morgan Johnstone
收藏  |  浏览/下载:6/0  |  提交时间:2021/03/02
Ice retreat in Wilkes Basin of East Antarctica during a warm interglacial 期刊论文
NATURE, 2020, 583 (7817) : 554-+
作者:  T. Blackburn;  G. H. Edwards;  S. Tulaczyk;  M. Scudder;  G. Piccione;  B. Hallet;  N. McLean;  J. C. Zachos;  B. Cheney;  J. T. Babbe
收藏  |  浏览/下载:21/0  |  提交时间:2020/08/09

Uranium isotopes in subglacial precipitates from the Wilkes Basin of the East Antarctic Ice Sheet reveal ice retreat during a warm Pleistocene interglacial period about 400,000 years ago.


Efforts to improve sea level forecasting on a warming planet have focused on determining the temperature, sea level and extent of polar ice sheets during Earth'  s past interglacial warm periods(1-3). About 400,000 years ago, during the interglacial period known as Marine Isotopic Stage 11 (MIS11), the global temperature was 1 to 2 degrees Celsius greater(2)and sea level was 6 to 13 metres higher(1,3). Sea level estimates in excess of about 10 metres, however, have been discounted because these require a contribution from the East Antarctic Ice Sheet(3), which has been argued to have remained stable for millions of years before and includes MIS11(4,5). Here we show how the evolution of(234)U enrichment within the subglacial waters of East Antarctica recorded the ice sheet'  s response to MIS11 warming. Within the Wilkes Basin, subglacial chemical precipitates of opal and calcite record accumulation of(234)U (the product of rock-water contact within an isolated subglacial reservoir) up to 20 times higher than that found in marine waters. The timescales of(234)U enrichment place the inception of this reservoir at MIS11. Informed by the(234)U cycling observed in the Laurentide Ice Sheet, where(234)U accumulated during periods of ice stability(6)and was flushed to global oceans in response to deglaciation(7), we interpret our East Antarctic dataset to represent ice loss within the Wilkes Basin at MIS11. The(234)U accumulation within the Wilkes Basin is also observed in the McMurdo Dry Valleys brines(8-10), indicating(11)that the brine originated beneath the adjacent East Antarctic Ice Sheet. The marine origin of brine salts(10)and bacteria(12)implies that MIS11 ice loss was coupled with marine flooding. Collectively, these data indicate that during one of the warmest Pleistocene interglacials, the ice sheet margin at the Wilkes Basin retreated to near the precipitate location, about 700 kilometres inland from the current position of the ice margin, which-assuming current ice volumes-would have contributed about 3 to 4 metres(13)to global sea levels.


  
Rapid glacier retreat and downwasting throughout the European Alps in the early 21(st) century 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Sommer, Christian;  Malz, Philipp;  Seehaus, Thorsten C.;  Lippl, Stefan;  Zemp, Michael;  Braun, Matthias H.
收藏  |  浏览/下载:9/0  |  提交时间:2020/06/29