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气候变化正在影响苏格兰的湖泊和水库环境安全 快报文章
资源环境快报,2022年第09期
作者:  吴秀平
Microsoft Word(14Kb)  |  收藏  |  浏览/下载:687/1  |  提交时间:2022/05/17
Climate change  lake  reservoir  water quality  
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:57/0  |  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.


  
Roles of Irrigation and Reservoir Operations in Modulating Terrestrial Water and Energy Budgets in the Indian Subcontinental River Basins 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019
作者:  Shah, Harsh L.;  Zhou, Tian;  Sun, Ning;  Huang, Maoyi;  Mishra, Vimal
收藏  |  浏览/下载:24/0  |  提交时间:2020/02/17
VIC  Irrigation  Reservoir  Land surface temperaure  Water Management  
Tracking Multidecadal Lake Water Dynamics with Landsat Imagery and Topography/Bathymetry 期刊论文
WATER RESOURCES RESEARCH, 2019
作者:  Weekley, David;  Li, Xingong
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/27
reservoir  water volume  Google Earth Engine  satellite imagery  bathymetry  
Evaporation Suppression From Water Bodies Using Floating Covers: Laboratory Studies of Cover Type, Wind, and Radiation Effects 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (6) : 4839-4853
作者:  Lehmann, Peter;  Aminzadeh, Milad;  Or, Dani
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/26
evaporation  water reservoir  evaporation suppression  surface energy balance  
A New Perspective for Assessing Water Transport and Associated Retention Effects in a Large Reservoir 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (18) : 9642-9650
作者:  Xu, Bochao;  Yang, Disong;  Yao, Peng;  Burnett, William C.;  Ran, Xiangbin;  Charette, Matthew;  Huang, Xinying;  Liu, Sumei;  Yu, Zhigang
收藏  |  浏览/下载:15/0  |  提交时间:2019/04/09
radium  reservoir  water age  retention effects  nutrients  
Seismic and Geologic Evidence of Water-Induced Earthquakes in the Three Gorges Reservoir Region of China 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (12) : 5929-5936
作者:  Huang, Rong;  Zhu, Lupei;  Encarnacion, John;  Xu, Yixian;  Tang, Chi-Chia;  Luo, Song;  Jiang, Xiaohuan
收藏  |  浏览/下载:16/0  |  提交时间:2019/04/09
reservoir-induced earthquakes  Three Gorges Reservoir  water infiltration  seismogenic fault  earthquake focal mechanism  earthquake relocation  
Quantifying the potential for reservoirs to secure future surface water yields in the world's largest river basins 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2018, 13 (4)
作者:  Liu, Lu;  Parkinson, Simon;  Gidden, Matthew;  Byers, Edward;  Satoh, Yusuke;  Riahi, Keywan;  Forman, Barton
收藏  |  浏览/下载:20/0  |  提交时间:2019/04/09
reliability  storage-yield curve  global change  reservoir capacity expansion  long-term strategic water resources planning  
Identifying and Modeling Dynamic Preference Evolution in Multipurpose Water Resources Systems 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (4) : 3162-3175
作者:  Mason, E.;  Giuliani, M.;  Castelletti, A.;  Amigoni, F.
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
water management  negotiation protocol  tradeoff analysis  multipurpose reservoir  coupled human-natural systems  sociohydrology  
Hydrological Drought in the Anthropocene: Impacts of Local Water Extraction and Reservoir Regulation in the US 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2017, 122 (21)
作者:  Wan, Wenhua;  Zhao, Jianshi;  Li, Hong-Yi;  Mishra, Ashok;  Leung, L. Ruby;  Hejazi, Mohamad;  Wang, Wei;  Lu, Hui;  Deng, Zhiqun;  Demissisie, Yonas;  Wang, Hao
收藏  |  浏览/下载:22/0  |  提交时间:2019/04/09
hydrological drought  water management  local water extraction  reservoir regulation  emission mitigation