| Large-scale rainfall?runoff?inundation modeling for upper CitarumRiver watershed, Indonesia |
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학술지명 Environmental Earth Sciences
저자 김연수,Kania,안현욱,정관수
발표일 2018-09-30
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The Citarum River is one of the strategic rivers in West Java, Indonesia. Its total watershed area is approximately 1800 km2.Almost every year, the overflow from the Citarum River causes the inundation of most of the upper Citarum River watershed.To prevent and mitigate flood damage, it is necessary to understand the flooding characteristics. The region, however, suffersfrom a lack of observational data. Therefore, to analyze the inundation caused by flooding in the upper Citarum Riverwatershed, a rainfall?runoff?inundation (RRI) model was employed. It used the following multiple satellite-derived datasetsas input data as well as for model verification: Global Satellite Mapping of Precipitation, Hydrological data and maps basedon Shuttle elevation Derivatives at multiple scales, Global Mosaics of the standard MODIS land cover type data product,and Landsat 7 satellite images. Parameter calibration was performed using a Monte Carlo simulation. The simulation wasperformed for February 2010. The results of this study show that the RRI model identifies inundation areas in large-scaleriver watersheds more effectively when using multiple satellite-derived datasets compared with the observed inundationmap obtained from JICA in 2010 and Landsat 7 images. The model results can be improved if high-quality observed rainfalldata, topographic data, and river cross-sectional data are available. |