Traditional Culture Encyclopedia - Weather inquiry - 1998 Jingdezhen flood level
1998 Jingdezhen flood level
1998 flood, including the Yangtze River, Nenjiang River and Songhua River. The Yangtze River flood is one of the most serious floods in the whole basin in the 20th century, following the two floods of 193 1 and 1954.
The floods in Nenjiang River and Songhua River are also the worst floods in the whole basin since 150 years. The affected area is 3/kloc-0.80 million mu, the affected area is/kloc-0.96 million mu, the affected population is 223 million, 4 150 people died, 6.85 million houses collapsed, and the direct economic loss reached/kloc-0.66 billion yuan.
Extended data:
According to different regions, floods can generally be divided into river floods, coastal floods and lake floods.
Floods can be divided into rain floods, mountain torrents, snowmelt floods and ice floods according to their causes.
Flood level:
General flood: the return period is less than 10 year.
Great flood: return period 10 ~ 20 years.
Great flood: the return period is 20-50 years.
Extraordinary flood: the return period exceeds 50 years.
The climate of Jingdezhen is prone to floods, as follows:
Jingdezhen has a subtropical monsoon climate with abundant sunshine and rainfall, mild and humid, and distinct four seasons.
The climate in Jingdezhen is changeable in spring, sometimes cold and sometimes warm. At the turn of spring and summer, cold and warm air currents often meet in the territory, with continuous rain. Rainfall is concentrated in the rainy season before summer, and heavy rain and heavy rain are frequent. The average annual precipitation in May, June and July is 200 ~ 350 mm, which is easy to cause floods.
After plum blossom, it is mostly controlled by subtropical high. The weather is hot and the humidity is high, which makes people feel sultry. In autumn, the temperature is mild and there is little rain; Winter is often affected by Siberian (or Mongolian) cold high pressure, prevailing northerly winds and cold weather.
References:
Baidu encyclopedia-1998 catastrophic flood
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