Variability of the low-level cross-equatorial jet of the western Indian Ocean since 1660 as derived from coral proxies

被引：25

作者：

Gong, Dao-Yi ^{[1
]}

Luterbacher, Juerg ^{[2
]}

机构：

[1] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Coll Resources Sci & Technol, Beijing 100875, Peoples R China

[2] Univ Bern, Inst Geog Climatol & Meteorol, CH-3012 Bern, Switzerland

来源：

GEOPHYSICAL RESEARCH LETTERS | 2008年 / 35卷 / 01期

关键词：

D O I：

10.1029/2007GL032409

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Using monthly-seasonally resolved coral proxies from the Indian Ocean basin, we statistically reconstruct the June-July-August (JJA) low-level jet in western Indian Ocean from 1660-1957 with skillful estimates for high-and low-frequencies. The El Nino/Southern Oscillation (ENSO) signals are reasonably captured. The strength of the jet significantly increases from the late 17th century to late 19th century. The decreasing in reconstructed jet in 20th century disagrees with previous studies which indicated an enhancement of Southern Asian summer monsoon (SASM) in association with the rapid global warming. The jet reconstructions are useful for understanding of SASM variability and the validation of historical monsoon simulation.

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页数：5

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共 29 条

[1] Seasonal characteristics of the Indian Ocean Dipole during the Holocene epoch [J].

Abram, Nerilie J. ;

Gagan, Michael K. ;

Liu, Zhengyu ;

Hantoro, Wahyoe S. ;

McCulloch, Malcolm T. ;

Suwargadi, Bambang W. .

NATURE, 2007, 445 (7125) :299-302

[2] Increase in the Asian southwest monsoon during the past four centuries [J].

Anderson, DM ;

Overpeck, JT ;

Gupta, AK .

SCIENCE, 2002, 297 (5581) :596-599

[3] Decadal scale droughts over northwestern Thailand over the past 448 years: links to the tropical Pacific and Indian Ocean sectors [J].

Buckley, Brendan M. ;

Palakit, Kritsadapan ;

Duangsathaporn, Khwanchai ;

Sanguantham, Prasong ;

Prasomsin, Patsi .

CLIMATE DYNAMICS, 2007, 29 (01) :63-71

[4] A 780-year annually resolved record of Indian Ocean monsoon precipitation from a speleothem from south Oman [J].

Burns, SJ ;

Fleitmann, D ;

Mudelsee, M ;

Neff, U ;

Matter, A ;

Mangini, A .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2002, 107 (D20) :ACL9-1

[5] Monsoon-tropical ocean interaction in a network of coral records spanning the 20th century [J].

Charles, CD ;

Cobb, KM ;

Moore, MD ;

Fairbanks, RG .

MARINE GEOLOGY, 2003, 201 (1-3) :207-222

[6] Interaction between the ENSO and the Asian monsoon in a coral record of tropical climate [J].

Charles, CD ;

Hunter, DE ;

Fairbanks, RG .

SCIENCE, 1997, 277 (5328) :925-928

[7] Tropical Pacific forcing of decadal SST variability in the western Indian Ocean over the past two centuries [J].

Cole, JE ;

Dunbar, RB ;

McClanahan, TR ;

Muthiga, NA .

SCIENCE, 2000, 287 (5453) :617-619

[8] Low-frequency of southern Asian monsoon variability using a 295-year record from the Dasuopu ice core in the central Himalayas [J].

Duan, KQ ;

Yao, TD ;

Thompson, LG .

GEOPHYSICAL RESEARCH LETTERS, 2004, 31 (16) :L162091-4

[9] A MAJOR LOW-LEVEL AIR CURRENT NEAR INDIAN OCEAN DURING NORTHERN SUMMER [J].

FINDLATER, J .

QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 1969, 95 (404) :362-+

[10] Holocene forcing of the Indian monsoon recorded in a stalagmite from Southern Oman [J].

Fleitmann, D ;

Burns, SJ ;

Mudelsee, M ;

Neff, U ;

Kramers, J ;

Mangini, A ;

Matter, A .

SCIENCE, 2003, 300 (5626) :1737-1739