• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2011 Fiscal Year Final Research Report

Development of satellite precipitation maps for hydrologicalapplications

Research Project

  • PDF
Project/Area Number 22760365
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Hydraulic engineering
Research InstitutionNagasaki University (2011)
The University of Tokyo (2010)

Principal Investigator

SETO Shinta  長崎大学, 大学院・工学研究科, 准教授 (50533618)

Project Period (FY) 2010 – 2011
Keywords水文学
Research Abstract

For further improvement of satellite precipitation maps such as GSMaP, we have conducted two studies in this project. Firstly, rain rate estimates in the new standard product of TRMM/PR (Version 7, V7) were evaluated. Owing to the improvement of surface reference technique, heavy rainfall estimates appear more frequently in V7 than in the previous version. We also evaluated V7’s rain rate estimates with high-temporal resolution rain gauge dataset over Japan and concluded that the heavy rainfall estimates (higher than 50 mm/h) are overestimated, but their biases are less than 50%. Secondly, we developed a new method to detect rainfall for the interval of two measurements of microwave radiometers. In this method, we judge rain or no-rain from the decrease in brightness temperature at low frequency channels. This method yields comparable results with the method used in GSMaP for less vegetated area.

  • Research Products

    (7 results)

All 2012 2011

All Journal Article (3 results) Presentation (4 results)

  • [Journal Article] A new rain detection method to complement high-resolution global precipitation products2012

    • Author(s)
      Shinta Seto, Takahiro Tsunekawa, Taikan Oki
    • Journal Title

      Hydrological Research Letters

      Volume: Vol.6 Pages: 82-86

  • [Journal Article] TRMM/PRバージョン7プロダクトの強い雨2012

    • Author(s)
      瀬戸心太、井口俊夫、内海信幸、沖大幹
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 第68巻第4号 Pages: I_373-I_378

  • [Journal Article] CloudSatデータにおける雲粒有効半径と雲頂高度の関係の検証2012

    • Author(s)
      鈴木聡、瀬戸心太、沖大幹
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 第68巻第4号 Pages: I_421-I_426

  • [Presentation] マイクロ波放射計の観測間に生じる降水の検出手法の開発2012

    • Author(s)
      瀬戸心太、恒川貴弘、沖大幹
    • Organizer
      水文・水資源学会2012年度研究発表会
    • Place of Presentation
      広島
    • Year and Date
      20120900
  • [Presentation] 地上気象観測1分値データとTRMM/PR/V7を用いた短時間降水強度極値2012

    • Author(s)
      瀬戸心太、内海信幸、木口雅司、沖大幹
    • Organizer
      日本気象学会2012年度春季大会
    • Place of Presentation
      つくば
    • Year and Date
      20120500
  • [Presentation] Relationship between cloud droplet effective radius and cloud top height for deep convection clouds in CloudSat data product2011

    • Author(s)
      Suzuki S., S. Seto, T. Oki
    • Organizer
      IEEE IGARSS
    • Year and Date
      20110000
  • [Presentation] Comparison of TRMM PR V6 and V7 focusing heavy rainfall2011

    • Author(s)
      Seto S., T. Iguchi, R. Meneghini
    • Organizer
      IEEE IGARSS
    • Year and Date
      20110000

URL: 

Published: 2014-08-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi