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UNEP发布《SDGs-6目标的中期评估》报告 快报文章
资源环境快报,2024年第17期
作者:  李恒吉
Microsoft Word(22Kb)  |  收藏  |  浏览/下载:488/0  |  提交时间:2024/09/15
UNEP  SDGs6  Integrated Water Resources Management  Ecosystem  
IPCC发布第六次评估报告综合报告《气候变化2023》 快报文章
气候变化快报,2023年第07期
作者:  刘莉娜
Microsoft Word(18Kb)  |  收藏  |  浏览/下载:724/0  |  提交时间:2023/04/05
IPCC  AR6  Synthesis Report  Climate Change  
预计ENSO影响南极大陆架海洋变暖和海冰融化 快报文章
气候变化快报,2023年第05期
作者:  刘燕飞
Microsoft Word(15Kb)  |  收藏  |  浏览/下载:677/2  |  提交时间:2023/03/05
ENSO  CMIP6  Sea Ice Melt  
欧空局5G/6G中心布局新的研发计划 快报文章
地球科学快报,2023年第3期
作者:  刘文浩
Microsoft Word(41Kb)  |  收藏  |  浏览/下载:633/0  |  提交时间:2023/02/10
ESA  5G/6G  
2100年格陵兰冰盖融化可能导致海平面上升约18cm 快报文章
资源环境快报,2020年第24期
作者:  董利苹
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Greenland Ice Sheet  Sea Level Rise  CMIP6  Regional Climate Models  
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:62/0  |  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.


  
On the Relationship Between the Marine Cold Air Outbreak M Parameter and Low-Level Cloud Heights in the Midlatitudes 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (13)
作者:  Naud, Catherine M.;  Booth, James F.;  Lamer, Katia;  Marchand, Roger;  Protat, Alain;  McFarquhar, Greg M.
收藏  |  浏览/下载:28/0  |  提交时间:2020/08/18
low-level clouds  southern ocean  MCAO M-index  CAM6  boundary layer stability  
An Evaluation of the Large-Scale Atmospheric Circulation and Its Variability in CESM2 and Other CMIP Models 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (13)
作者:  Simpson, Isla R.;  Bacmeister, Julio;  Neale, Richard B.;  Hannay, Cecile;  Gettelman, Andrew;  Garcia, Rolando R.;  Lauritzen, Peter H.;  Marsh, Daniel R.;  Mills, Michael J.;  Medeiros, Brian;  Richter, Jadwiga H.
收藏  |  浏览/下载:38/0  |  提交时间:2020/08/18
CESM2  evaluation  large-scale circulation  extratropical variability  CMIP6  modeling  
Increased Dust Aerosols in the High Troposphere Over the Tibetan Plateau From 1990s to 2000s 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (13)
作者:  Feng, Xingya;  Mao, Rui;  Gong, Dao-Yi;  Zhao, Chun;  Wu, Chenglai;  Zhao, Chuanfeng;  Wu, Guangjian;  Lin, Zhaohui;  Liu, Xiaohong;  Wang, Kaicun;  Sun, Yijie
收藏  |  浏览/下载:38/0  |  提交时间:2020/08/18
the Tibetan Plateau  dust aerosols  middle east  ice core  CMIP 6  
Impact of Higher Spatial Atmospheric Resolution on Precipitation Extremes Over Land in Global Climate Models 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (13)
作者:  Bador, Margot;  Boe, Julien;  Terray, Laurent;  Alexander, Lisa, V;  Baker, Alexander;  Bellucci, Alessio;  Haarsma, Rein;  Koenigk, Torben;  Moine, Marie-Pierre;  Lohmann, Katja;  Putrasahan, Dian A.;  Roberts, Chris;  Roberts, Malcolm;  Scoccimarro, Enrico;  Schiemann, Reinhard;  Seddon, Jon;  Senan, Retish;  Valcke, Sophie;  Vanniere, Benoit
收藏  |  浏览/下载:43/0  |  提交时间:2020/08/18
precipitation extremes  multimodel and multiproduct of observations framework  performance of the models  global climate models for CMIP6 and HighResMIP  sensitivity to atmospheric spatial resolution