| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Research Abstract |
This study is aimed at seeking the adequate interval estimate method of effluent loading from diffuse source, such as forested or agricultural catchment. A configuration of confidence interval was based on the bootstrap method. As a results, the best performance was attained with the interval estimation method that combined periodical sampling with 7 parameters model of USGS Load Estimator applying bias correction by composite method for dissolved ions. In contrast, the best performance was achieved with the interval estimation method that combined probabilistic SALT sampling with power type loading-discharge rate regression model applying no bias correction for suspended solids. However the interval estimation method for dissolved ions still has rooms for improvement.
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