Causes of Flood

Heavy rain: It is characterized by high amounts of precipitation falling quickly, usually in a restricted area, and having brief warning periods because of its convective origin.

Deforestation: It is the term used to describe the disappearance or thinning of forests due to tree cutting. Humans use the space that has been cleared by deforestation to build highways, factories, homes, dams, and agricultural land.

Cyclone: It is a massive air mass that revolves around a powerful low-pressure center. . The centre of a cyclone is a calm area. It is called the eye of the storm. It is a region free of clouds and has light winds.

Lack of drainage system: Poor drainage caused by the shape of the landscape or inadequate drainage systems can damage buildings and move soil from where it’s needed to where it causes trouble. The effects of poor drainage systems extend beyond single properties and can have an impact on roads, waterways, and health.

Change in river: Firstly, sediment size decreases due to erosion, which causes sediment to get finer and smoother. This happens due to hydraulic action, abrasion, attrition and solution which act on the sediment throughout the course of the river. Another characteristic of the river that changes is the channel width and depth.

Population Pressure: Population pressure, a term summarizing the stress brought about by an excessive population density and its consequences, is used both in conjunction with human overpopulation and with other animal populations that suffer from too many individuals per area (or volume in the case of aquatic organisms).

Tsunami: It series of extremely long waves, It are very long wavelengths of water caused by a large and sudden displacement of the ocean due to earthquakes, volcanic eruptions etc. These are also called seismic sea waves and are one of the most powerful and destructive natural forces.

Glacial Lake Outburst: It is also known as a Glacial Lake Outburst Flood, or GLOF, is sudden release of water from a lake fed by glacier melt that has formed at the side, in front, within, beneath, or on the surface of a glacier.