The status of the Indo-Pacific Warm Pool and adjacent land at the Last Glacial Maximum
De Deckker, P; Tapper, NJ; van der Kaars, S
2003
发表期刊GLOBAL AND PLANETARY CHANGE
ISSN0921-8181
卷号35期号:40545页码:25-35
摘要Since the Climate: Long Range Investigation, Mapping and Prediction (CLIMAP) reconstructions for the Earth at the Last Glacial Maximum (LGM), there have been conflicting views on the extent of cooling of the oceans of tropical Australasia-here, referred to as the Indo-Pacific Warm Pool-in contrast with those temperatures registered on land. Based on sea-surface temperature (= SST) reconstructions for the Indo-Pacific Warm Pool, and on vegetation reconstruction for SE Asia as well as by considering the increase of land mass area engendered during low sea levels, we identify for the LGM a significant drop in precipitation in the Warm Pool region that would explain an increase in salinity while SST decreased by about 2 degreesC at the most. The latter would have caused a substantial decrease of large-scale atmospheric convection over the Indo-Pacific Warm Pool and suppressed deep atmospheric convection that would help maintain somewhat elevated SSTs. The drier atmosphere and diminished level of cloud cover would also have reduced nocturnal temperatures at elevation in the region and produced a steeper mean atmospheric lapse rate, forcing the tree line to drop and glaciers to be maintained down to much lower altitudes than today. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属Australian Natl Univ, Dept Geol, Canberra, ACT 0200, Australia; Monash Univ, Sch Geog & Environm Sci, Clayton, Vic 3880, Australia
关键词Last Glacial Maximum Indo-pacific Warm Pool Sea-surface Salinity Oxygen Isotopes Precipitation Sea-level Changes Foraminifera
学科领域Geography, Physical ; Geosciences, Multidisciplinary
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收录类别sci
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/8499
专题海洋科技动态信息-印太暖池系统研究
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De Deckker, P,Tapper, NJ,van der Kaars, S. The status of the Indo-Pacific Warm Pool and adjacent land at the Last Glacial Maximum[J]. GLOBAL AND PLANETARY CHANGE,2003,35(40545):25-35.
APA De Deckker, P,Tapper, NJ,&van der Kaars, S.(2003).The status of the Indo-Pacific Warm Pool and adjacent land at the Last Glacial Maximum.GLOBAL AND PLANETARY CHANGE,35(40545),25-35.
MLA De Deckker, P,et al."The status of the Indo-Pacific Warm Pool and adjacent land at the Last Glacial Maximum".GLOBAL AND PLANETARY CHANGE 35.40545(2003):25-35.
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