Ｘバンド偏波レーダを用いた発達する降水セルの検出に関する研究

• 増田 有俊

  京都大学 工学研究科

• 中北 英一

  京都大学 防災研究所

書誌事項

タイトル別名

• STUDY OF HAZARDOUS STORM DETECTION USING X-BAND POLARIMETRIC RADAR OBSERVATIONS
• Xバンド ヘンパ レーダ オ モチイタ ハッタツ スル コウスイ セル ノ ケンシュツ ニ カンスル ケンキュウ

抄録

 In recent years, flood damage in urban areas due to localized heavy rain has been a serious problem. In order to save life from the flood damage, rainfall forecast is important even if 10-minute lead time. To improve the rainfall forecast system, an index is necessary to detect the hazardous storm.<br> High Z_DR area which is extending above the freezing level, i.e. a Z_DR column, is associated with strong updraft. We investigated a relation between the Z_DR column and storm development using X-band polarimetric radar observations. It is known that Z_DR is susceptible from rainfall attenuation especially in X-band radar. On the other hand, K_DP is not affected from rainfall attenuation. Therefore, we also studied the effectiveness of K_DP column. We found that Z_DR column (K_DP column) were formed about 15 min (10 min) prior to the onset of heavy rainfall on the ground based on the cell tracking algorithm.

収録刊行物

• 土木学会論文集Ｂ１（水工学）

  土木学会論文集Ｂ１（水工学） 72 (4), I_193-I_198, 2016

  公益社団法人 土木学会

キーワード

• X-band polarimetric radar
• Z_DR column K_DP column
• tracking storm cell
• storm life cycle

詳細情報

• CRID: 1390282680330298112
• NII論文ID: 130005312048
• NII書誌ID: AN10426673
• ISSN: 18808751
• ISSN: 2185467X
• ISSN: 09167374
• DOI: 10.2208/jscejhe.72.i_193
• NDL書誌ID: 027165826
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027165826
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/72/4/72_I_193/_pdf
• 本文言語コード: ja
• データソース種別:
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