Atlantic meridional overturning circulation during the Last Glacial Maximum

被引:306
作者
Lynch-Stieglitz, Jean [1 ]
Adkins, Jess F.
Curry, William B.
Dokken, Trond
Hall, Ian R.
Herguera, Juan Carlos
Hirschi, Joel J. -M.
Ivanova, Elena V.
Kissel, Catherine
Marchal, Olivier
Marchitto, Thomas M.
McCave, I. Nicholas
McManus, Jerry F.
Mulitza, Stefan
Ninnemann, Ulysses
Peeters, Frank
Yu, Ein-Fen
Zahn, Rainer
机构
[1] Georgia Inst Technol, Atlanta, GA 30332 USA
[2] CALTECH, Pasadena, CA 91125 USA
[3] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA
[4] Bjerknes Ctr Climate Res, N-5007 Bergen, Norway
[5] Cardiff Univ, Cardiff CF10 3YE, S Glam, Wales
[6] CICESE Oceanol, Ensenada, Baja California, Mexico
[7] Univ Southampton, Natl Oceanog Ctr, Southampton SO14 3ZH, Hants, England
[8] Russian Acad Sci, PP Shirshov Oceanol Inst, Moscow 117997, Russia
[9] UVSQ, CNRS, CEA, Lab Sci Climat & Environm, F-91198 Gif Sur Yvette, France
[10] Univ Colorado, Boulder, CO 80309 USA
[11] Univ Cambridge, Cambridge CB2 3EQ, England
[12] Univ Bremen, Forschungszentrum Ozeanrander MARUM, D-28334 Bremen, Germany
[13] Univ Bergen, Bjerknes Ctr Climate Res, N-5007 Bergen, Norway
[14] Vrije Univ Amsterdam, NL-1081 HV Amsterdam, Netherlands
[15] Natl Taiwan Normal Univ, Dept Chem, Taipei 116, Taiwan
[16] Univ Autonoma Barcelona, Inst Catalana Rec & Estudis Avancats, E-08193 Barcelona, Spain
基金
美国国家科学基金会; 英国自然环境研究理事会;
关键词
D O I
10.1126/science.1137127
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The circulation of the deep Atlantic Ocean during the height of the last ice age appears to have been quite different from today. We review observations implying that Atlantic meridional overturning circulation during the Last Glacial Maximum was neither extremely sluggish nor an enhanced version of present-day circulation. The distribution of the decay products of uranium in sediments is consistent with a residence time for deep waters in the Atlantic only slightly greater than today. However, evidence from multiple water-mass tracers supports a different distribution of deep-water properties, including density, which is dynamically linked to circulation.
引用
收藏
页码:66 / 69
页数:4
相关论文
共 62 条
[11]   Glacial water mass geometry and the distribution of δ13C of ΣCO2 in the western Atlantic Ocean -: art. no. PA1017 [J].
Curry, WB ;
Oppo, DW .
PALEOCEANOGRAPHY, 2005, 20 (01) :1-12
[12]   CARBON ISOTOPIC CHANGES IN BENTHIC FORAMINIFERA FROM THE WESTERN SOUTH-ATLANTIC - RECONSTRUCTION OF GLACIAL ABYSSAL CIRCULATION PATTERNS [J].
CURRY, WB ;
LOHMANN, GP .
QUATERNARY RESEARCH, 1982, 18 (02) :218-235
[13]  
DUPIESSY JC, 1980, NATURE, V286, P479
[14]   DEEPWATER SOURCE VARIATIONS DURING THE LAST CLIMATIC CYCLE AND THEIR IMPACT ON THE GLOBAL DEEPWATER CIRCULATION [J].
Duplessy, J. C. ;
Shackleton, N. J. ;
Fairbanks, R. G. ;
Labeyrie, L. ;
Oppo, D. ;
Kallel, N. .
PALEOCEANOGRAPHY, 1988, 3 (03) :343-360
[15]  
DUPLESSY JC, 1989, RADIOCARBON, V31, P493
[16]   Calibrations for benthic foraminiferal Mg/Ca paleothermometry and the carbonate ion hypothesis [J].
Elderfield, H. ;
Yu, J. ;
Anand, P. ;
Kiefer, T. ;
Nyland, B. .
EARTH AND PLANETARY SCIENCE LETTERS, 2006, 250 (3-4) :633-649
[17]   PLEISTOCENE TEMPERATURES [J].
EMILIANI, C .
JOURNAL OF GEOLOGY, 1955, 63 (06) :538-578
[18]   Improved estimates of global ocean circulation, heat transport and mixing from hydrographic data [J].
Ganachaud, A ;
Wunsch, C .
NATURE, 2000, 408 (6811) :453-457
[19]   Meridional circulation during the Last Glacial Maximum explored through a combination of South Atlantic δ18O observations and a geostrophic inverse model [J].
Gebbie, Geoffrey ;
Huybers, Peter .
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2006, 7
[20]   Evidence from the Northeastern Atlantic basin for variability in the rate of the meridional overturning circulation through the last deglaciation [J].
Gherardi, JM ;
Labeyrie, L ;
McManus, JF ;
Francois, R ;
Skinner, LC ;
Cortijo, E .
EARTH AND PLANETARY SCIENCE LETTERS, 2005, 240 (3-4) :710-723