Strong Wind around Transmission Lines in Kyushu Mountainous Terrains : Application of Wind Measured and Estimated using Meteorological Model WRF

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  • Takemura Akito
    Department of Urban Design, Planning and Disaster Management, Graduate School of Human-Environment Studies, Kyushu University : Contract Researcher
  • Tamura Naoya
    Department of Urban Design, Planning and Disaster Management, Graduate School of Human-Environment Studies, Kyushu University : Master's Program
  • Tomokiyo Eriko
    Department of Architecture and Urban Design, Faculty of Human-Environment Studies, Kyushu University
  • Maeda Junji
    Department of Architecture and Urban Design, Faculty of Human-Environment Studies, Kyushu University

Bibliographic Information

Other Title
  • 台風通過時での九州内山岳地送電線路周辺地域の強風分布 : 周辺観測値の利用と気象モデルWRFによる推定
  • タイフウ ツウカジ デ ノ キュウシュウ ウチヤマダケチ ソウデン センロ シュウヘン チイキ ノ キョウフウ ブンプ : シュウヘン カンソクチ ノ リヨウ ト キショウ モデル WRF ニ ヨル スイテイ

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Description

The structural design of transmission line requires wind information related to severe wind load. However, wind data which were observed only over short periods at a transmission line in high altitude mountainous terrain is not sufficient. For the purpose of estimation of strong wind around transmission lines which are built straddling Miyazaki Prefecture and Oita Prefecture, We analyzed correlation between wind record observed at a line and at its nearby observation points, because of utilizing long-term wind record at the surrounding points effectively. As a result, we found that high correlation between wind at the transmission line and nearby points in case of specific wind speed and direction. In addition, we reproduced wind distribution around the transmission lines caused by Typhoon Usagi(0705) using the meso-scale atmospheric model WRF. The winds measured at several transmission lines corresponded well to estimated winds using the model.

Journal

  • 都市・建築学研究

    都市・建築学研究 26 23-28, 2014-07-15

    Faculty of Human-Environment Studies, Kyushu University

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