DEVELOPMENT OF A METHOD OF PREDICTETING TYPHOON-RELATED RAINFALL WITH RADAR AND GPV INFORMATION INTRODUCING OROGRAPHIC RAINFALL

• NAKAKITA Eiichi

  工博京都大学防災研究所

• ADACHI Mitsuru

  京都大学 工学研究科

• KITAI Takeshi

  工修滋賀県庁

Bibliographic Information

Other Title

• 地形性降雨を導入したレーダー及びGPV情報を用いた台風性降雨予測手法の開発

Abstract

This paper shows modification of the short-term rainfall prediction method based on the translation model so that it could become suitable for predicting typhoon-related rainfall. Firstly, we defined a new field of translation vector that can express movement of both typhoon-related spiral rainbands and other general rain area. Here, the rotation of the spiral rainbands around the eye is expressed by Rankine's combined vortex. Second, orographic rainfall, which is dominated in case of typhoon, is introduced based on the Tatehira's model. As a result, when the target domain is the whole Japanese archipelago and both typhoon related and front related rain areas are coexist, three-hours ahead prediction of location of both rain areas was much improved. Also when typhoon passed over the Kinki district, orgraphic rainfall over Kii mountains, Yohro and Hira mountain chains were well predicted.

Journal

• PROCEEDINGS OF HYDRAULIC ENGINEERING

  PROCEEDINGS OF HYDRAULIC ENGINEERING 51 337-342, 2007

  Japan Society of Civil Engineers

Keywords

• rainfall prediction
• typhoon
• orographic rainfall
• radar
• GPV
• translation model
• CIP method

Details

• CRID: 1390001205170956416
• NII Article ID: 130003842466
• DOI: 10.2208/prohe.51.337
• ISSN: 18849172
• ISSN: 09167374
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed