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2010 Fiscal Year Final Research Report

Diurnal variations in sea surface temperature and precipitable water observed over the tropical Ocean

Research Project

  • PDF
Project/Area Number 21740347
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

YASUNAGA Kazuaki  Japan Agency for Marine-Earth Science and Technology, 地球環境変動領域, 研究員 (50421889)

Project Period (FY) 2009 – 2010
Keywords大気海洋相互作用
Research Abstract

The relationships between large-scale motion and moisture variations are investigated. The results indicate that moisture variations show a prominent 3-4-day period, ant the 3-4-day-period variations are strongly modulated by the significant diurnal cycle of sea surface temperature. The 3-4-day period variations are observed during the developing phase of Madden-Julian oscillation (MJO) and might play a significant role in the MJO development.

  • Research Products

    (5 results)

All 2011 2010 2009

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (1 results)

  • [Journal Article] The influence of observations propagated by convectively coupled equatorial waves.2011

    • Author(s)
      Qoosaku M., K.Yoneyama, R.Shirooka, H.Kubota, K.Yasunaga, J.Suzuki, A.Seiki, N.Sato, T.Enomoto, T.Miyoshi, S.Yamane.
    • Journal Title

      Quarterly Journal of the Royal Meteorological Society. 137

      Pages: 642-655

    • Peer Reviewed
  • [Journal Article] Characteristics of 3-4-day and 6-8-day period disturbances observed over the tropical Indian Ocean.2010

    • Author(s)
      Yasunaga, K., K.Yoneyama, Q.Moteki, M.Fujita, Y.N.Takayabu, J.Suzuki, T.Ushiyama, B.Mapes.
    • Journal Title

      Monthly Weather Review 138

      Pages: 4158-4174

    • Peer Reviewed
  • [Journal Article] Continual influences of tropical waves on the genesis and rapid intensification of Typhoon Durian (2006).2010

    • Author(s)
      Yanase, W., M.Satoh, H.Yamada, K.Yasunaga, Q.Moteki.
    • Journal Title

      Geophysical Research Letters. 37

      Pages: L08809

    • Peer Reviewed
  • [Journal Article] Afternoon precipitation peak simulated in an aqua-planet global non-hydrostatic model (aqua-planet-NICAM).2009

    • Author(s)
      Yasunaga, K., T.Nasuno, H.Miura, Y.N.Takayabu, M.Yoshizaki.
    • Journal Title

      Journal of Meteorological Society of Japan in printing

    • Peer Reviewed
  • [Presentation] Water vapor variations and equatorial waves over the Indian Ocean.2009

    • Author(s)
      Yasunaga, K.
    • Organizer
      熱帯気象研究会
    • Place of Presentation
      北海道大学
    • Year and Date
      2009-09-29

URL: 

Published: 2012-02-13   Modified: 2016-04-21  

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