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Satellite-observed warm-core structure in relation to tropical cyclone intensity change 期刊论文
ATMOSPHERIC RESEARCH, 2020, 240
作者:  Wang, Xiang;  Jiang, Haiyan;  Zhang, Jun A.;  Peng, Ke
收藏  |  浏览/下载:9/0  |  提交时间:2020/08/18
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:19/0  |  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.


  
Fast responses on pre-industrial climate from present-day aerosols in a CMIP6 multi-model study 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (14) : 8381-8404
作者:  Zanis, Prodromos;  Akritidis, Dimitris;  Georgoulias, Aristeidis K.;  Allen, Robert J.;  Bauer, Susanne E.;  Boucher, Olivier;  Cole, Jason;  Ben Johnson;  Deushi, Makoto;  Michou, Martine;  Mulcahy, Jane;  Nabat, Pierre;  Olivie, Dirk;  Oshima, Naga;  Sima, Adriana;  Schulz, Michael;  Takemura, Toshihiko;  Tsigaridis, Konstantinos
收藏  |  浏览/下载:16/0  |  提交时间:2020/08/18
Cloud phase characteristics over Southeast Asia from A-Train satellite observations 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (13) : 8267-8291
作者:  Hong, Yulan;  Di Girolamo, Larry
收藏  |  浏览/下载:6/0  |  提交时间:2020/07/21
Temperature Inversion and Clouds Over the Arctic Ocean Observed by the 5th Chinese National Arctic Research Expedition 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2020, 125 (13)
作者:  Wang, Ding;  Guo, Jianping;  Chen, Aijun;  Bian, Lingen;  Ding, Minghu;  Liu, Lin;  Lv, Yanmin;  Li, Jian;  Guo, Xiaoran;  Han, Yi
收藏  |  浏览/下载:14/0  |  提交时间:2020/08/18
cloud  temperature inversion  radiosonde  Arctic  
Characterization and source analysis of water-soluble ions in PM2.5 at a background site in Central China 期刊论文
ATMOSPHERIC RESEARCH, 2020, 239
作者:  Xie, Yajun;  Lu, Haibo;  Yi, Aijun;  Zhang, Zhongyi;  Zheng, Nengjian;  Fang, Xiaozhen;  Xiao, Huayun
收藏  |  浏览/下载:11/0  |  提交时间:2020/08/18
PM2.5  SNA  Water-soluble ions characteristics  Formation mechanism  Source identification  Central China  
Improving forecasts of a record-breaking rainstorm in Guangzhou by assimilating every 10-min AHI radiances with WRF 4DVAR 期刊论文
ATMOSPHERIC RESEARCH, 2020, 239
作者:  Wu, Yali;  Liu, Zhiquan;  Li, Deqin
收藏  |  浏览/下载:8/0  |  提交时间:2020/08/18
10-min AHI radiances  4DVAR  Warm-sector torrential rainfall  Record-breaking  
Ensemble simulations of the influence of regionally warm sea surface on moisture and rainfall in Tsushima Strait during August 2013 期刊论文
ATMOSPHERIC RESEARCH, 2020, 238
作者:  Yamamoto, Masaru
收藏  |  浏览/下载:9/0  |  提交时间:2020/08/18
Evaluating CMIP6 model fidelity at simulating non-Gaussian temperature distribution tails 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (7)
作者:  Catalano, A. J.;  Loikith, P. C.;  Neelin, J. D.
收藏  |  浏览/下载:14/0  |  提交时间:2020/08/18
CMIP6  climate models  temperature extremes  
Dynamical response of atmospheric circulation to below-normal East Sea sea surface temperatures associated with heavy snowfall in eastern Korea 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (7)
作者:  Kim, Taekyun;  Kim, Yoonjae;  Moon, Jae-Hong;  Jin, Emilia Kyung
收藏  |  浏览/下载:13/0  |  提交时间:2020/08/18
heavy snowfall  East Sea  heavy snowfall-related sea surface temperature  atmospheric circulation