Flood is a meteorological disaster, which is caused by the extreme weather of continuous torrential rain. Flood disaster mainly includes flood and rain.
Flood disaster is a kind of natural disaster, which often brings great harm to human beings. However, many people do not understand what kind of disaster flood belongs to. Let’s learn about it together.
Flood disaster refers to the disaster that causes the increase of water in rivers, lakes and coastal areas, rising water levels and mountain floods due to heavy rainfall, melting snow and ice, ice, dam break, storm surge and other reasons.
Rain and waterlogging disaster refers to the disaster caused by heavy rain, heavy rain, and a lot of water and runoff, because the drainage is not timely, and the land, housing and so on flooded.
According to the cause of formation, flood disasters can be divided into: storm floods, snow melt floods, ice storm floods, storm surge floods, etc. According to the season of rain and flooding, the rain and flooding disasters can be divided into: spring flooding, summer flooding, summer-autumn flooding and autumn flooding, etc.
Water conservancy measures are the fundamental measures for flood control and waterlogging control. For hilly areas, it is necessary to build water conservancy projects such as reservoirs, valleys, ponds and ditches to control soil erosion and prevent slope floods.
The characteristics of flood disaster are sudden and wide. Using satellite remote sensing to monitor a large area of flood, the field of vision is wider and the flood boundary will be clearer. Therefore, the introduction of remote sensing information products makes the monitoring of flood disaster more timely and accurate.