大地形の変遷と気候変動  [in Japanese] Evolution of Large Scale Topography and Variation in Climate  [in Japanese]

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Author(s)

    • 笹井 義一 SASAI Yoshikazu
    • (独)海洋研究開発機構地球環境フロンティア研究センター生態系変動予測研究プログラム Ecosystem Change Research Program, Frontier Research Center for Global Change, Japan Agency for Marine-Earth Science and Technology
    • 陳 永利 CHAN Wing-Le
    • (独)海洋研究開発機構地球環境フロンティア研究センター地球温暖化予測研究プログラム Global Warming Research Program, Frontier Research Center for Global Change, Japan Agency for Marine-Earth Science and Technology

Abstract

 Climate model experiments are carried out to understand the relationship between large-scale topography and climate variation. Mountain uplift experiments show that sea surface temperature, surface wind fields, precipitation and sea surface salinity are strongly influenced by mountain uplift. An enhanced Asian monsoon due to mountain uplift causes stronger seasonal coastal upwelling in the Indian Ocean and freshening in the Bay of Bengal, Yellow Sea and East China Sea. Mountain uplift experiments using a higher resolution atmospheric general circulation model reveal that the spatial pattern of precipitation becomes finer as resolution increases, and that there is a sharper contrast in the salinity distribution near coastal regions. Experiments in which the Panamanian Gateway is closed, opened and re-closed suggest that reorganization of the ocean current due to closure of the Panamanian Gateway induces a cooler and drier climate with a permanent halocline and sea ice in the subarctic Pacific.

Journal

  • Journal of Geography (Chigaku Zasshi)

    Journal of Geography (Chigaku Zasshi) 117(6), 1015-1028, 2008-12-25

    Tokyo Geographical Society

References:  43

Cited by:  1

Codes

  • NII Article ID (NAID)
    10025680075
  • NII NACSIS-CAT ID (NCID)
    AN00322536
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0022135X
  • NDL Article ID
    9774373
  • NDL Source Classification
    ZM41(科学技術--地球科学)
  • NDL Call No.
    Z15-169
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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