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Title: 降雨成因を考慮した雨滴粒径分布の鉛直構造解析
Other Titles: Analysis of Vertical Profile of Rain Drop Size Distribution Related to Rainfall Type
Authors: 中川, 勝広  KAKEN_name
中北, 英一  KAKEN_name
佐藤, 亨  KAKEN_name
池淵, 周一  KAKEN_name
Author's alias: NAKAGAWA, Katsuhiro
SATO, Toru
Keywords: 雨滴粒径分布
Rain drop size distribution
Vertical profile
Rainfall type MU radar
Issue Date: 1-Apr-1997
Publisher: 京都大学防災研究所
Journal title: 京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B
Volume: 40
Issue: B-2
Start page: 263
End page: 274
Abstract: 鉛直方向の雨滴の落下速度のドップラースペクトルから雨滴粒径分布の鉛直分布が推定可能なMUレーダーと地上同期観測を実施し, 降雨タイプを考慮した地上の雨滴粒径分布の定式化を行い, 時々刻々変化する時・空間スケールにおける雨滴粒径分布の鉛直分布に着目し, レーダー雨量計で分類した降雨タイプごとの雨滴粒径分布の鉛直構造を明らかにした。さらに, 降雨タイプに依存した雨滴粒径分布パラメータの鉛直方向の関係の定式化を行った。
The rainfall intensity on the ground is usually not equivalent to the rainfall intensity estimated from the conventional radar.To improve the accuracy of the radar‐estimated rainfall, we observe and analyze the vertical profile of the rain drop size distribution (DSD), then create a new formulation of the vertical profile of DSD.Based on the obtained information, first, a new formulation of DSD which considers rainfall type, rainfall intensity and observed DSD from the Disdrometer is developed.Then, the analysis of the vertical profile of DSD in the selected rainfall type is carried out to investigate the possibility of determing relationships among parameters for the DSD.
Appears in Collections:No.40 B-2

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