| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
New methodology for constructing digital river network dataset is developed using globally available high resolution satellite observations and digital topography data. The digital river network dataset includes river morphological information (river width, river bank slope, etc.), and it can be used for hydrological application on regional to continental scale. The validity of the proposed methodology is verified through the comparison of cross-sectional and longitudinal elevation profile between observed and developed dataset.
The developed digital river network dataset is used for analysis of river morphological characteristics, and difference of these characteristics are discussed in several Asian rivers. The utility of the developed dataset for modeling work is also demonstrated through the numerical experiments using one-dimensional hydraulic model and distributed hydrological model.
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