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美研究提出AMOC深层水输送路径的新发现 快报文章
气候变化快报,2024年第7期
作者:  刘燕飞
Microsoft Word(26Kb)  |  收藏  |  浏览/下载:263/2  |  提交时间:2024/04/03
Atlantic Meridional Overturning Circulation (AMOC)  Eastern Pathway  Western Pathways  
Assessing the variations in the chemical composition of rainwater and air masses using the zonal and meridional index 期刊论文
ATMOSPHERIC RESEARCH, 2020, 237
作者:  Keresztesi, Agnes;  Nita, Ion-Andrei;  Birsan, Marius-Victor;  Bodor, Zsolt;  Pernyeszi, Timea;  Micheu, Miruna Mihaela;  Szep, Robert
收藏  |  浏览/下载:17/0  |  提交时间:2020/07/02
Rainwater chemistry  Atmospheric circulations  Zonal Index  Meridional Index  ERA Interim  Source apportionment  
Half-precessional cycle of thermocline temperature in the western equatorial Pacific and its bihemispheric dynamics 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (13) : 7044-7051
作者:  Jian, Zhimin;  Wang, Yue;  Dang, Haowen;  Lea, David W.;  Liu, Zhengyu;  Jin, Haiyan;  Yin, Yaqian
收藏  |  浏览/下载:21/0  |  提交时间:2020/05/13
thermocline temperature  half-precession  western equatorial Pacific  meridional gradient  
On the relationship between Atlantic meridional overturning circulation slowdown and global surface warming 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (2)
作者:  Caesar, L.;  Rahmstorf, S.;  Feulner, G.
收藏  |  浏览/下载:26/0  |  提交时间:2020/07/02
Atlantic meridional overturning circulation  global surface warming  ocean heat uptake  
Oceanic forcing of penultimate deglacial and last interglacial sea-level rise 期刊论文
NATURE, 2020, 577 (7792) : 660-+
作者:  Rizal, Yan;  Westaway, Kira E.;  Zaim, Yahdi;  van den Bergh, Gerrit D.;  Bettis, E. Arthur, III;  Morwood, Michael J.;  Huffman, O. Frank;  Grun, Rainer;  Joannes-Boyau, Renaud;  Bailey, Richard M.;  Sidarto;  Westaway, Michael C.;  Kurniawan, Iwan;  Moore, Mark W.;  Storey, Michael;  Aziz, Fachroel;  Suminto;  Zhao, Jian-xin;  Aswan;  Sipola, Maija E.;  Larick, Roy;  Zonneveld, John-Paul;  Scott, Robert;  Putt, Shelby;  Ciochon, Russell L.
收藏  |  浏览/下载:42/0  |  提交时间:2020/05/13

Sea-level histories during the two most recent deglacial-interglacial intervals show substantial differences(1-3) despite both periods undergoing similar changes in global mean temperature(4,5) and forcing from greenhouse gases(6). Although the last interglaciation (LIG) experienced stronger boreal summer insolation forcing than the present interglaciation(7), understanding why LIG global mean sea level may have been six to nine metres higher than today has proven particularly challenging(2). Extensive areas of polar ice sheets were grounded below sea level during both glacial and interglacial periods, with grounding lines and fringing ice shelves extending onto continental shelves(8). This suggests that oceanic forcing by subsurface warming may also have contributed to ice-sheet loss(9-12) analogous to ongoing changes in the Antarctic(13,14) and Greenland(15) ice sheets. Such forcing would have been especially effective during glacial periods, when the Atlantic Meridional Overturning Circulation (AMOC) experienced large variations on millennial timescales(16), with a reduction of the AMOC causing subsurface warming throughout much of the Atlantic basin(9,12,17). Here we show that greater subsurface warming induced by the longer period of reduced AMOC during the penultimate deglaciation can explain the more-rapid sea-level rise compared with the last deglaciation. This greater forcing also contributed to excess loss from the Greenland and Antarctic ice sheets during the LIG, causing global mean sea level to rise at least four metres above modern levels. When accounting for the combined influences of penultimate and LIG deglaciation on glacial isostatic adjustment, this excess loss of polar ice during the LIG can explain much of the relative sea level recorded by fossil coral reefs and speleothems at intermediate- and far-field sites.


  
Observable, low-order dynamical controls on thresholds of the Atlantic meridional overturning circulation 期刊论文
CLIMATE DYNAMICS, 2019, 53 (11) : 6815-6834
作者:  Wood, Richard A.;  Rodriguez, Jose M.;  Smith, Robin S.;  Jackson, Laura C.;  Hawkins, Ed
收藏  |  浏览/下载:26/0  |  提交时间:2020/02/17
Atlantic meridional overturning circulation  Thresholds  Climate change  Dynamics  Fresh water  
Contributions of atmospheric and oceanic feedbacks to subtropical northeastern sea surface temperature variability 期刊论文
CLIMATE DYNAMICS, 2019, 53 (11) : 6877-6890
作者:  Middlemas, Eleanor;  Clement, Amy;  Medeiros, Brian
收藏  |  浏览/下载:19/0  |  提交时间:2020/02/17
Cloud radiative feedback  Meridional modes  Ocean dynamics  Northeastern subtropical ocean  WES feedback  
Impact of seawater equation of state on the simulation of Atlantic Meridional Overturning Circulation 期刊论文
CLIMATE DYNAMICS, 2019
作者:  Ma, Libin;  Wang, Bin;  Zhang, Xiao
收藏  |  浏览/下载:17/0  |  提交时间:2020/02/17
The Atlantic Meridional Overturning Circulation  Equation of state  Deep convection  Formation of deep water  Cabbeling and thermobaric effect  
Acceleration of Ocean Acidification in the Western North Pacific 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (22) : 13161-13169
作者:  Ono, Hisashi;  Kosugi, Naohiro;  Toyama, Katsuya;  Tsujino, Hiroyuki;  Kojima, Atsushi;  Enyo, Kazutaka;  Iida, Yosuke;  Nakano, Toshiya;  Ishii, Masao
收藏  |  浏览/下载:22/0  |  提交时间:2020/02/17
acceleration  atmospheric CO2 increase  decadal variability  meridional variability  ocean acidification  western North Pacific  
Uncertainty in the Evolution of Climate Feedback Traced to the Strength of the Atlantic Meridional Overturning Circulation 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019
作者:  Lin, Yuan-Jen;  Hwang, Yen-Ting;  Ceppi, Paulo;  Gregory, Jonathan M.
收藏  |  浏览/下载:30/0  |  提交时间:2019/11/27
climate sensitivity  climate feedback  Atlantic Meridional Overturning Circulation