集中豪雨に対する防災情報としてのGMS-5赤外輝度温度活用の可能性

概要

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Radar measurement is important information for heavy rainfall disaster prevention. Also, GMS-5 infrared brightness temperature information can detect the existence and movement of cloud cluster. So, improvement of accuracy to expect a localized heavy rainfall by utilizing radar information together with GMS-5 infrared brightness temperature information could be anticipated. The temporal and spatial changes of infrared brightness temperature T_<BB> and radar echo are analyzed by using hourly data about 0.05 degrees spatial resolution by Geostationary Meteorological Satellite (GMS-IR) and hourly data from Radar AMeDAS Precipitation Data over Shizuoka-Kanagawa region in 1998 Kochi region in 1998,and Nagoya region in 2000 as examples of localized heavy rainfall in this study. As results, GMS-T_<BB> data can be obtained by real-time at present, therefore, according to the weather condition, localized heavy rainfall can be expected at earlier stage by keeping watch on low infrared brightness temperature area (less than -5O℃ ) and radar precipitation area. The GMS-5 infrared brightness temperature information could be utilized for disaster prevention information of a localized heavy rainfall.
日本自然災害学会の論文
2001-08-31