Bad weather occurs frequently. Comparing the floods in Shanxi and the heavy rains in Henan, what are the differences in the disaster situation?

The rainfall map in 2021 seems to be "upside down". Guangdong, Hunan, Jiangxi, Hubei and other places that are traditionally prone to flood disasters have not experienced large-scale floods this year. Instead, Henan, Henan, and Hubei are often in drought. Shaanxi, Shanxi and other northern provinces have experienced flood disasters one after another. We have to lament that climate warming has a great impact on extreme weather. Although they are both flood disasters, the Shanxi floods are very different from the Henan floods in July, which are specifically reflected in the attributes of the affected areas and the affected area.

Let’s talk about the nature of the disaster-stricken areas first. The areas most affected by the heavy rains in Henan in July were cities. Although the short-term rainfall of the heavy rains at that time was greater than that in Shanxi this time, the scale of the heavy rains was not large, so the affected areas were not large. Mainly in Zhengzhou and Xinxiang urban areas. Affected by extreme heavy rains, subways and hospitals in Zhengzhou were flooded, and a large number of private cars were flooded. The traffic in the entire city was basically paralyzed;

This is equivalent to directly cutting off the basic operation of the city. In one sentence, The impact of the heavy rain in Zhengzhou is "a small area but a loss of precious materials." In contrast, the Shanxi flood disaster this time is more similar to the traditional flood disaster in the south. The disasters mainly affected river floodplain areas, basic farmland, village and town houses, etc., and there were many dam collapses, bridge overthrows, mudslides, etc. If necessary, To characterize flood disasters, the disaster manifestations in Shanxi this time tend to be more common.

Looking at the affected area, although the short-term rainfall in Shanxi this time was not as large as that in Henan, it lasted longer and the scale of the impact was larger. Therefore, the affected area in Shanxi was much larger than that in Henan. Basically all 11 cities in the province were affected, and a total of 1.7571 million people in 76 counties (cities and districts) were affected.

In addition, there are differences in basic terrain between Shanxi and Henan. Shanxi belongs to the plateau terrain and has many surrounding basins. Therefore, floods in Shanxi cause more farmland damage. According to rough statistics, there are 3.6 million acres of crops. Damage, and Shanxi's latitude is further north, the climate is drier, and the plateau soil's flood carrying capacity is lower. Therefore, in the face of large-scale heavy rains, it is also easy to cause debris flows. Comprehensive comparison, the flood losses in Shanxi this time are higher than those in Henan in July. rainstorm.