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High-water Level River Discharge Measurement Method in Japan

High-water Level River Discharge Measurement Method in Japan

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Feature of <strong>River</strong> <strong>in</strong> <strong>Japan</strong><br />

• Catchment area is small<br />

• <strong>River</strong>s have very steep bed<br />

slope<br />

• Annual precipitation is big<br />

<strong>Japan</strong><br />

Annual precipitation[mm/year]<br />

Other countries<br />

Most of Floods are Flash Floods<br />

<strong>in</strong> <strong>Japan</strong>

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