Tag: disasters - case studies

The Ganges river system, particularly its northern tributaries originating in the Himalayas, is the primary cause of frequent flooding in the plains of Uttar Pradesh.

Forests naturally absorb water from rainfall and slowly release the water into the rivers. After deforestation, rainfall flows too quickly to the rivers, stripping the topsoil and causing erosion and flooding to occur. When these floods break the river's banks, further problems arise as the path of the river changes and further soil erosion occurs along the river's new path. Deforestation also makes an area more arid, contributing to droughts.

A flood is an overflow of water that submerges land, which is classified as a natural disaster caused by meteorological or hydrological events.

Flash floods are defined by the speed of flooding, not the source or location of flooding. While flash floods are often caused by heavy rainfall, they can also result from other events, such as drain blockages and cloud bursts

A flood is an overflow of water that submerges land which is usually dry. The European Union (EU) Floods Directive defines a flood as a covering by water of land not normally covered by water. In the sense of "flowing water", the word may also be applied to the inflow of the tide.

Floods are complex events that can vary significantly in their physical characteristics, including the volume of water (size), the velocity of the current, and the duration of the inundation.

A cyclone is a large-scale air mass that rotates around a strong center of low atmospheric pressure. Winds blow inward toward the low-pressure center.

Global meteorological studies generally categorize the world into four major cyclone-prone zones based on the frequency and intensity of tropical storms.