GIS 기반 농경지 침수모의시스템의 구축 및 적용
Applications of a GIS-bsaed Paddy Inundation Simulation System
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Abstract
A GIS-based paddy inundation simulation system which is capable of simulating temporal and spatial inundation processes was established and applied in this paper. The system is composed of HEC-GeoHMS, and HEC-GeoRAS modules which interface the GIS and flood runoff models, and HEC-HMS, and HEC-RAS models which estimate the flood runoff. It was used to simulate storm runoff and inundation for a small rural watershed, the Baran HP#7, which is 10.69 km2 in size. The simulated peak runoff, time to peak, and total direct runoff for eight storms were compared with the observed data. The results showed that the coefficient of determination (R2) for the observed peak runoff was 0.99 and an error, RMSE, 11.862 m3/s for calibration stages. In the model verification, R2 was 0.99 and RMSE 1.296 m3/s. Paddy inundation for each paddy growing stages in study watershed were estimated using verified inundation simulation system when probability rainfall was applied.
참고문헌 (14)
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