我國(guó)對(duì)末次冰期冰盛期東亞區(qū)域氣候模擬的研究

氣候變化研究進(jìn)展 ?? 2007, Vol. 03 ?? Issue (03): 138-143.

我國(guó)對(duì)末次冰期冰盛期東亞區(qū)域氣候模擬的研究

梁瀟云姜大膀

中國(guó)科學(xué)院大氣物理研究所

收稿日期:2006-06-30 修回日期:2007-03-30 出版日期:2007-05-30 發(fā)布日期:2007-05-30
通訊作者: 姜大膀

Advances in East Asian Paleoclimate Modelling for the Last Glacial Maximum by China

Received:2006-06-30 Revised:2007-03-30 Online:2007-05-30 Published:2007-05-30

摘要/Abstract

摘要： 末次冰期冰盛期（或稱(chēng)為末次盛冰期），為第四紀(jì)更新世最后一個(gè)冰期的鼎盛時(shí)期，該時(shí)期的氣候與當(dāng)代氣候迥然不同。近年來(lái)，中國(guó)科研工作者已就末次冰期冰盛期東亞區(qū)域氣候開(kāi)展了一些數(shù)值模擬工作。結(jié)果表明：該時(shí)期中國(guó)大陸地表氣溫降低，中東部地區(qū)降水顯著減少，東亞冬季風(fēng)增強(qiáng)、夏季風(fēng)顯著減弱。在國(guó)際古氣候模擬比較計(jì)劃（PMIP）標(biāo)準(zhǔn)試驗(yàn)的基礎(chǔ)上，進(jìn)一步指出東亞植被的反饋?zhàn)饔谩⑶嗖馗咴赡鼙ǖ姆答佔(zhàn)饔谩⒁约拔魈窖蟊砻鏈囟鹊淖饔媚軌蛞痤~外的氣候效應(yīng)，可在一定程度上改進(jìn)PMIP標(biāo)準(zhǔn)試驗(yàn)的模擬效果。

關(guān)鍵詞: 末次冰期冰盛期, 數(shù)值模擬, 東亞區(qū)域

Abstract: The Last Glacial Maximum (LGM) is about 21000 calendar years before present, with climate conditions significantly different from the present. Some numerical experiments for this period have been performed in China in recent several years. It is revealed that the LGM was generally characterized by lowered surface temperature relative to the present over China inland, decreased precipitation in the central and eastern China, intensified East Asian winter monsoon and weakened East Asian summer monsoon. Moreover, based on the boundary conditions recommended by the Paleoclimate Modelling Intercomparison Project (PMIP), it is further indicated that vegetation feedback in East Asia, possible ice sheet over the Tibetan Plateau, and sea surface temperature reconstruction in the western Pacific different from the PMIP data source can induce additional climate effects, which partly reconcile model-paleodata discrepancies as displayed by the standard PMIP simulations.

Key words: Last Glacial Maximum (LGM), modelling, East Asia

梁瀟云姜大膀. 我國(guó)對(duì)末次冰期冰盛期東亞區(qū)域氣候模擬的研究[J]. 氣候變化研究進(jìn)展, 2007, 03(03): 138-143.

. Advances in East Asian Paleoclimate Modelling for the Last Glacial Maximum by China[J]. Climate Change Research, 2007, 03(03): 138-143.

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