Related topics: climate change · drought · rainfall

Built on sand: Dutch find unlikely ally against water

The Netherlands is deploying an unlikely ally as climate change intensifies the low-lying country's age-old fight against floods: more than 666,000 truckloads of sand to shore up a crucial dike.

Warm-sector heavy rainfall in China: Studies and challenges

Warm-sector heavy rainfall (WSHR) is a type of rainstorm proposed by Chinese meteorologists that had been found to only occur in South China. However, WSHR has also been found in other regions of China, according to Prof. ...

A battle for the jet stream is raging above our heads

When prolonged periods of severe weather strike, two things often get the blame these days: climate change and the jet stream. Many have expressed concerns that the rapidly melting Arctic is now disturbing the jet stream, ...

Why flooding is still so difficult to predict and prepare for

Before you read this story, take a minute to stop and look around you. Now imagine your surroundings under two feet of dirty, sewage-filled water. If you're at home, everything is trashed. Never mind your car, your furniture ...

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Flood

A flood is an overflow or accumulation of an expanse of water that submerges land. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Flooding may result from the volume of water within a body of water, such as a river or lake, which overflows or breaks levees, with the result that some of the water escapes its normal boundaries. While the size of a lake or other body of water will vary with seasonal changes in precipitation and snow melt, it is not a significant flood unless such escapes of water endanger land areas used by man like a village, city or other inhabited area.

Floods can also occur in rivers, when the strength of the river is so high it flows out of the river channel, particularly at bends or meanders and causes damage to homes and businesses along such rivers. While flood damage can be virtually eliminated by moving away from rivers and other bodies of water, since time out of mind, people have lived and worked by the water to seek sustenance and capitalize on the gains of cheap and easy travel and commerce by being near water. That humans continue to inhabit areas threatened by flood damage is evidence that the perceived value of living near the water exceeds the cost of repeated periodic flooding.

The word "flood" comes from the Old English flod, a word common to Germanic languages (compare German Flut, Dutch vloed from the same root as is seen in flow, float). The specific term "The Flood," capitalized, usually refers to the great Universal Deluge described in the Bible, in Genesis, and is treated at Deluge.

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