衛星リモートセンシングによるタイ中央平原西部クラシオ川流域の洪水地形分類

概要

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The purposes and applications of the field of geomorphological land classification are explained. Also, the history of the classification in the field for flood prevention and the procedure for map making in this field based on satellite remote sensing are explained. The study area is set up along the boundary of the Chao Phraya River delta in the western part of the Central Plain of Thailand. The map has been made in a scale of 1 : 100, 000. This study has been carried out in an area of about 72 km x 110 km which includes the Krasieo River basin. The map is made using mainly visual photo obtained from Landsat data. A principal component analysis method is applied to Landsat TM data, which gives good results for visual photo interpretation. For the purpose of evaluating the circumstances of a disaster caused by flooding and/or drought, a change in the landuse over a period of 15 years has been detected using Landsat TM data and MSS data in the area. The geomorphological characteristics of the Krasieo River basin are analyzed, and the conditions in which an inundation is caused by heavy rains are investigated for every geomorphological elements of the basin.
独立行政法人防災科学技術研究所の論文
1991-03-29