Hydrograph and its assumptions

Hurricane_Irene_flood Hydrograph

It is defined as the hydrograph of direct runoff resulting from unit depth (1cm) of rainfall excess occurring uniformly over the the basin and at a uniform rate for a specified duration (D hour). Assumption of unit hydrograph (i) The effective rainfall is uniformly distributed within its duration …

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Dampness in the buildings

Dampness-in-the-building-wall

The penetration or excess of moisture inside the building from its walls, floors, or roof is known as dampness in the buildings. Sources of Dampness in the buildings The following are the main sources due to which dampness occurs in the building. Moisture penetrating into the building through …

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