High Cloud Responses to Global Warming Simulated by Two Different Cloud Microphysics Schemes Implemented in the Nonhydrostatic Icosahedral Atmospheric Model (NICAM)

DOI PDF 被引用文献9件
  • Ying-Wen Chen
  • Tatsuya Seiki
  • Chihiro Kodama
    Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
  • Masaki Satoh
    Japan Agency for Marine-Earth Science and Technology, Yokohama, and Atmosphere and Ocean Research Institute, The University of Tokyo, Tokyo, Japan
  • Akira T. Noda
    Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
  • Yohei Yamada
    Japan Agency for Marine-Earth Science and Technology, Yokohama, and Atmosphere and Ocean Research Institute, The University of Tokyo, Tokyo, Japan

書誌事項

公開日
2016-08-04
DOI
  • 10.1175/jcli-d-15-0668.1
公開者
American Meteorological Society

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説明

<jats:title>Abstract</jats:title> <jats:p>This study examines cloud responses to global warming using a global nonhydrostatic model with two different cloud microphysics schemes. The cloud microphysics schemes tested here are the single- and double-moment schemes with six water categories: these schemes are referred to as NSW6 and NDW6, respectively. Simulations of one year for NSW6 and one boreal summer for NDW6 are performed using the nonhydrostatic icosahedral atmospheric model with a mesh size of approximately 14 km. NSW6 and NDW6 exhibit similar changes in the visible cloud fraction under conditions of global warming. The longwave (LW) cloud radiative feedbacks in NSW6 and NDW6 are within the upper half of the phase 5 of the Coupled Model Intercomparison Project (CMIP5)–Cloud Feedback Model Intercomparison Project 2 (CFMIP2) range. The LW cloud radiative feedbacks are mainly attributed to cirrus clouds, which prevail more in the tropics under global warming conditions. For NDW6, the LW cloud radiative feedbacks from cirrus clouds also extend to midlatitudes. The changes in cirrus clouds and their effects on LW cloud radiative forcing (LWCRF) are assessed based on changes in the effective radii of ice hydrometeors () and the cloud fraction. It was determined that an increase in has a nonnegligible impact on LWCRF compared with an increase in cloud fraction.</jats:p>

収録刊行物

  • Journal of Climate

    Journal of Climate 29 (16), 5949-5964, 2016-08-04

    American Meteorological Society

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