ANALYSIS OF BEHAVIOR OF OVER-LAND FLOW BASED ON GEOPHYSICAL CHARACTERISTICS USING GEOGRPHIC INFORMATION SYSTEM

Autor: Masataka Ikari, Shuuichi Takasaki, Juichiro Akiyama, Hirotada Matsuki, Hisao Nakayama, Kenichi Teramachi, Takeshi Tanabe, Mirei Shige-Eda
Rok vydání: 2008
Předmět:
Zdroj: PROCEEDINGS OF HYDRAULIC ENGINEERING. 52:829-834
ISSN: 1884-9172
0916-7374
Popis: An analysis of behavior of over-land flows based on geophysical characteristics using geographic information system (GIS) was conducted. Firstly, the digital surface model (DSM), which is the data of the surface of ground, was verified against the data of bed elevation in the map of the city planning whose scale is 1/2500. Secondary, using digital surface model, a behavior of over-land flow was analyzed. Finally, the analyzed behavior of over-land flow was compared with the flood process examined in the field study and numerical simulation. It shows that the GIS and DSM are useful tool and data for examining the behavior of the inundation flows.
Databáze: OpenAIRE