Calculation of designed flood drainage flow rate has significant importance for water safety and effectively reduction of economic loss from water logging disaster in low-lying region.

圩区设计排涝流量的计算对圩区的水安全和有效减免涝灾经济损失有着重要意义。

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The main methods for calculating designed flood are probable maximum precipitation and hydrologic frequency analysis.

设计洪水计算方法主要是可能最大降雨和水文频率法。

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The designed discharge and designed flood level are determined by hydrological computation and main characteristic value of highway bridge is checked.

通过桥渡水文计算，确定了设防流量及设防水位，校核了大桥主要特征值；

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The same drawback, of course, applies to dams designed for flood control.

ECONOMIST: The Mekong river

In Pakistan, for example, the International Centre for Water Hazard and Risk Management (ICHARM), created under the auspices of UNESCO, and the Japan Aerospace Exploration Agency (JAXA) designed the Integrated Flood Analysis System (IFAS), a risk-prevention system using data obtained via satellite.

UNESCO: Published in Mainichi Newspaper on 21 May 2012.

The Elwy reached its highest recorded level breaching flood defences designed to cope with a one in 100-year event, says the report.

BBC: St Asaph floods cost council house insurers ?1m