What's the weather like in Tangshan on August 3, 2065438+00?

Bulletin of Climate Impact Assessment in August 2065438+00 Font: large, medium and small 2065438+00-09-0613: 34: 41Source: Hebei Station of China Weather Network I. Basic climate profile.

The basic climate of Hebei province in August of 20 10 is as follows: the average temperature in most parts of the province is close to normal, and the local temperature is high; Precipitation in most parts of the province is more or close to normal, and less in parts of northeast China; The sunshine hours in the south are less than normal, and most other areas are close to normal.

Second, the main climate characteristics

1, temperature

The average monthly temperature in the whole province is between 16.4 ~ 26.0℃, the average temperature in northern Zhangjiakou and Chengde is below 20.0℃, and the temperature in some parts of northern Rizo is between 16.0 ~ 18.0℃. The average monthly temperature in most parts of central and southern China is higher than 24.0℃, and the highest temperature in Bazhou, Langfang is 26.0℃.

Compared with normal years, the average monthly temperature in most parts of the province is close to normal years, and the local temperature is higher than 65438 0.0℃.

Step 2 precipitate

In August, the precipitation in our province was between 50 and 355 mm, of which, most of the central and southern areas were above 100 mm, most of Qinhuangdao, Xingtai, Handan and Hengshui, some of Tangshan and Cangzhou were above 200 mm, some of Qinhuangdao and Xingtai were above 300 mm, and the inner mound was 355 mm, which was the largest in the province. The monthly precipitation in most parts of Rizo and northern Tangshan is less than 100 mm, and 50 mm in Pingquan is the least in the whole province.

Compared with normal years, the precipitation in most parts of the province is more or close to normal years, and some parts of the northeast are less. Most of the precipitation in Xingtai, Handan, Hengshui, Cangzhou and Qinhuangdao is above 50%, among which most of Qinhuangdao and Xingtai, parts of western and eastern Handan, Hengshui and Cangzhou are above 80%, and most of Xingtai is above 1 times.

3. sunshine

In August, the sunshine hours in the whole province were 93 ~ 282 hours. The sunshine hours in most areas of Zhangjiakou and northern Chengde are more than 240 hours a month, and the sunshine hours in Guyuan are the most, with 282 hours. The monthly sunshine hours in most areas of Tangshan, southern Baoding, eastern Cangzhou, Shijiazhuang, Hengshui and southern areas are below 190 hours, and 93 hours in Neiqiu is the least in the province.

Compared with normal years, the sunshine hours in most parts of the central and northern parts of our province are close to normal years, and the sunshine hours in southern Baoding and Tangshan, eastern and southern Cangzhou and most parts of the south are less than normal years. Among them, the sunshine hours in central Hengshui, central and eastern Xingtai and eastern Handan are less than 80 hours, and the maximum sunshine hours in Neiqiu are 107 hours.

Three. Major weather and climate events

The main weather and climate events in August are: severe meteorological drought occurred in some areas in early and middle August; There were heavy rains and floods in the area.

1, drought

In August, the spatial and temporal distribution of precipitation in our province was uneven, and periodic droughts occurred in some areas. At the beginning of the month, there was less precipitation and higher temperature in most parts of our province, which made the early drought develop rapidly, especially in most parts of Baoding and parts of northern Langfang. Meteorological drought monitoring showed that drought occurred in most parts of the central and western parts of our province on August 3, in which most parts of Baoding reached the level of severe drought and some areas reached the level of special drought. After August 3rd, with the appearance of many precipitation processes, the drought in some areas of our province has been alleviated to some extent, especially in the central and southern regions. However, due to the uneven spatial distribution of precipitation, there was less precipitation in Northeast China during this period, which made the drought in this area develop. On June 5438+00, the moderate drought in our province mainly appeared in Baoding, north-central Langfang, southwest Chengde and north Tangshan, with severe drought locally. In the middle and late period, there have been many large-scale precipitation processes in our province, and the drought has eased. By the end of August, meteorological drought occurred only in Chengde, northern Tangshan and western Zhangjiakou, and the drought was mainly light, while there was no drought in most other parts of the province.

2. Heavy rain

In August, there were * * * rainstorm 1 15 stations in our province, 38 stations more than normal, the most since 1997. This month's rainstorm mainly occurred on August ~ 12 and 19 ~ 22.

On August 8 ~ 12, a province-wide precipitation process occurred in our province. The precipitation is mainly concentrated in the south of our province and most of the Qin and Tang Dynasties. The precipitation in Xingtai and eastern Handan exceeds 100 mm, of which 72 counties (cities) have rain on the 9th, 10 counties (cities) have heavy rain, and 1 county (city) has heavy rain. The rainfall in Guangping is 102 mm, which is the largest in the province. On June 5438+00, the scope of the rainstorm was expanded, but the intensity was weakened compared with that on the 9th. There are 98 counties (cities) in the province, including 2 counties (cities), 1 county (city), and the maximum precipitation is Linxi114 mm.

19 On June 22nd, a precipitation process with the largest range and strongest intensity occurred in our province. The precipitation in most parts of the province exceeds 50 mm, and the precipitation in Qinhuangdao, eastern Tangshan, north-central Langfang, eastern Cangzhou, most of Hengshui and central Xingtai all exceeds 100 mm, 19. Rainfall occurred in 32 counties (cities) in the province, including 35 counties (cities) with heavy rain and 3 counties. The precipitation in Qinglong is 134. 1 mm, which is the largest in the province. The rainstorm range of this day is 1997. On August 2 1 day, the rainfall range was the largest, covering 142 counties (cities) in the whole province, in which 19 counties (cities) experienced heavy rain, and 4 counties (cities) experienced heavy rain, among which the rainfall in southern Luannan 130mm was the largest in the whole province.

Affected by heavy rainfall, the affected area of crops is 996 hectares. In Wu 'an City, maize lodging was 3 12 hectares, millet lodging was 56 hectares, cotton lodging was 67 hectares, and vegetables were destroyed by 6.7 hectares. 53 hectares of corn and 10 hectares of cotton in Yanshan were affected, and the economic loss was 165438+ ten thousand yuan. Due to Laoting's disaster, crop yield decreased by 1.385 hectares, fruit trees by 687 hectares, 737 greenhouses, and 55 hectares of greenhouse facilities and vegetables were damaged.

Fourthly, the influence of weather and climate conditions on agriculture.

Within a month, spring corn from pollination to milk ripening, summer corn from jointing to filling, cotton from flowering to bolling. The development period of crops in central and southern China is 5 ~ 10 days later than normal.

The monthly precipitation is unevenly distributed, with more in the south and less in the north. Most of the monthly precipitation in Zhangjiakou and Chengde in the north is 50 ~ 100 mm, so the water condition can't meet the filling growth of crops such as spring corn, and the drought continues in some areas, which has certain influence on the full filling of spring corn. Rainfall 100 ~ 300mm in most parts of central and southern China, and water conditions can meet the growth and development of summer corn and cotton. In some rainfall concentration stages, the soil is too wet or the farmland is flooded.

The monthly temperature changes smoothly, and the average monthly temperature is basically close to normal. In early days, 1 ~ 2℃ was low in the north and 1 ~ 2℃ was low in the south, but they were all within the suitable range of filling for spring corn and summer corn. The temperature conditions are suitable for the growth and development of maize, with less accumulated temperature in the central and southern parts, the development of summer maize delayed by 5 ~ 10 days, and the temperature in the late spring maize area in the north is higher, which promotes the development of maize. During the month, there is more sunshine in the north, with an average of 7-9 hours per day, and it is obviously less in the south-central part, with an average of about 5 hours per day. Among them, some maize pollinated in Baoding and Shijiazhuang in the early and early middle stages were affected by poor pollination due to rainy days, less sunshine and high air humidity, which affected the increase of grain number per ear. In addition, the average daily time in some parts of southern China is only about 4 hours, which has a great impact on the normal development of cotton bolls in this area, leading to an increase in cotton boll shedding and serious boll rot, which has a certain adverse impact on cotton production.

Climate pre-assessment in May and September

It is estimated that in September, the precipitation in the central, southern and eastern parts of our province will be more1~ 20% than normal, and the precipitation in Zhangjiakou and Chengde will be less1~ 20% than normal. The monthly average temperature is 0.5℃ higher than normal. Other areas are slightly less than normal; The average monthly temperature in most areas is higher than normal.

In September, the autumn crops in our province will enter the late growth stage and mature harvest stage, which is the last stage of yield formation. Warm, bright and dry weather is needed at this stage to facilitate corn grain filling and boll cracking. It is suggested that all localities should actively do a good job in field management according to the current crop growth and weather changes, take effective measures to promote the normal maturity and timely harvest of autumn grain, and the central, southern and eastern regions should also make preparations for wheat sowing in advance; Cotton should be picked in time, and rotten bells should be removed in time to prevent the occurrence and spread of verticillium wilt.