ENSO variability and teleconnections during glacial climates

被引：78

作者：

Merkel, Ute ^{[1
]}

Prange, Matthias ^{[1
,2
]}

Schulz, Michael ^{[1
,2
]}

机构：

[1] MARUM, Ctr Marine Environm Sci, D-28334 Bremen, Germany

[2] Univ Bremen, Fac Geosci, D-28334 Bremen, Germany

来源：

QUATERNARY SCIENCE REVIEWS | 2010年 / 29卷 / 1-2期

关键词：

MERIDIONAL OVERTURNING CIRCULATION; PMIP2 COUPLED SIMULATIONS; SEA-SURFACE TEMPERATURE; EL-NINO-LIKE; TROPICAL PACIFIC; THERMOHALINE CIRCULATION; ISOTOPE STAGE-3; FUTURE CLIMATE; SEASONAL CYCLE; ATLANTIC;

D O I：

10.1016/j.quascirev.2009.11.006

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

Understanding the origin of sub-Milankovitch and millennial-scale abrupt climate change still poses a major challenge. An important role of communicating the orbital-scale forcing into abrupt climate change on millennial and centennial timescales has been hypothesized for the tropics in earlier studies based on the assumption of stationary teleconnections. This paper presents a modelling study for the Last Glacial Maximum and Marine Isotope Stage 3 using the comprehensive climate model CCSM3. Glacial boundary conditions and freshwater hosing at high latitudes of the North Atlantic are imposed to mimic a Heinrich stadial and Dansgaard-Oeschger stadials and interstadials. It is shown that glacial ENSO variability is strongly enhanced by a substantial slowdown of the Atlantic Meridional Overturning Circulation. The simulations also suggest that glacial boundary conditions induce major modifications to ENSO teleconnections and that the "blueprint" of modern ENSO teleconnections should only be applied with caution to glacial climate periods. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：86 / 100

页数：15

共 82 条

[1] Atmospheric CO2 and climate from 65 to 30 ka BP [J].

Ahn, Jinho ;

Brook, Edward J. .

GEOPHYSICAL RESEARCH LETTERS, 2007, 34 (10)

[2] Dominant Northern Hemisphere climate control over millennial-scale glacial sea-level variability [J].

Arz, Helge W. ;

Lamy, Frank ;

Ganopolski, Andrey ;

Nowaczyk, Norbert ;

Paetzold, Juergen .

QUATERNARY SCIENCE REVIEWS, 2007, 26 (3-4) :312-321

[3] High-resolution climate simulations of oxygen isotope stage 3 in Europe [J].

Barron, E ;

Pollard, D .

QUATERNARY RESEARCH, 2002, 58 (03) :296-309

[4] Rates of thermohaline recovery from freshwater pulses in modern, Last Glacial Maximum, and greenhouse warming climates [J].

Bitz, C. M. ;

Chiang, J. C. H. ;

Cheng, W. ;

Barsugli, J. J. .

GEOPHYSICAL RESEARCH LETTERS, 2007, 34 (07)

[5] Results of PMIP2 coupled simulations of the Mid-Holocene and Last Glacial Maximum - Part 2: feedbacks with emphasis on the location of the ITCZ and mid- and high latitudes heat budget [J].

Braconnot, P. ;

Otto-Bliesner, B. ;

Harrison, S. ;

Joussaume, S. ;

Peterchmitt, J.-Y. ;

Abe-Ouchi, A. ;

Crucifix, M. ;

Driesschaert, E. ;

Fichefet, Th. ;

Hewitt, C. D. ;

Kageyama, M. ;

Kitoh, A. ;

Loutre, M.-F. ;

Marti, O. ;

Merkel, U. ;

Ramstein, G. ;

Valdes, P. ;

Weber, L. ;

Yu, Y. ;

Zhao, Y. .

CLIMATE OF THE PAST, 2007, 3 (02) :279-296

[6] Results of PMIP2 coupled simulations of the Mid-Holocene and Last Glacial Maximum -: Part 1:: experiments and large-scale features [J].

Braconnot, P. ;

Otto-Bliesner, B. ;

Harrison, S. ;

Joussaume, S. ;

Peterchmitt, J.-Y. ;

Abe-Ouchi, A. ;

Crucifix, M. ;

Driesschaert, E. ;

Fichefet, Th. ;

Hewitt, C. D. ;

Kageyama, M. ;

Kitoh, A. ;

Laine, A. ;

Loutre, M.-F. ;

Marti, O. ;

Merkel, U. ;

Ramstein, G. ;

Valdes, P. ;

Weber, S. L. ;

Yu, Y. ;

Zhao, Y. .

CLIMATE OF THE PAST, 2007, 3 (02) :261-277

[7] The "normality" of El Nino [J].

Burgers, G ;

Stephenson, DB .

GEOPHYSICAL RESEARCH LETTERS, 1999, 26 (08) :1027-1030

[8]

Cane M, 1999, GEOPH MONOG SERIES, V112, P373

[9] Global seiching of thermocline waters between the Atlantic and the Indian-Pacific Ocean Basins [J].

Cessi, P ;

Bryan, K ;

Zhang, R .

GEOPHYSICAL RESEARCH LETTERS, 2004, 31 (04) :L043021-4

[10] Sea level changes forced ice breakouts in the Last Glacial cycle: new results from coral terraces [J].

Chappell, J .

QUATERNARY SCIENCE REVIEWS, 2002, 21 (10) :1229-1240

← 1 2 3 4 5 6 7 8 9 →