我國對末次冰期冰盛期東亞區(qū)域氣候模擬的研究

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

我國對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（或稱為末次盛冰期），為第四紀(jì)更新世最后一個冰期的鼎盛時期，該時期的氣候與當(dāng)代氣候迥然不同。近年來，中國科研工作者已就末次冰期冰盛期東亞區(qū)域氣候開展了一些數(shù)值模擬工作。結(jié)果表明：該時期中國大陸地表氣溫降低，中東部地區(qū)降水顯著減少，東亞冬季風(fēng)增強、夏季風(fēng)顯著減弱。在國際古氣候模擬比較計劃（PMIP）標(biāo)準(zhǔn)試驗的基礎(chǔ)上，進一步指出東亞植被的反饋作用、青藏高原可能冰川的反饋作用、以及西太平洋表面溫度的作用能夠引起額外的氣候效應(yīng)，可在一定程度上改進PMIP標(biāo)準(zhǔn)試驗的模擬效果。

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. 我國對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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