Delingha meteorological data

The winter of 2006 (12, 2005-February 2006) was characterized by high temperature, which was the warmest winter since meteorological data were available and the ninth consecutive warm winter. Except for the agricultural areas in the east, the eastern part of Haibei and the central and western part of Qaidam Basin, the precipitation in other areas is less. The average precipitation in the whole province is 197 1 ~ 2000, which is less than the climate average 18.2%. Except for most areas in the south of Qinghai Plateau, the sunshine hours in other areas are less, and the average sunshine hours in winter are 4% less than the climate average 197 1 ~ 2000. The main weather and climate events are the snowstorm in Yushu, Dulan and Menyuan, the continuous low temperature and dry weather in the north of our province from June 5438 to February 2005, the unusually high temperature weather in our province from June 5438 to February 2006, and the large-scale cold wave and strong cooling weather in our province from June 5438 to October 3-5, 2006.

1 Basic Climate Overview

1. 1 temperature

From June 5 to February 2005, the monthly average temperature in the whole province was high in the south and low in the north. Compared with the same period of previous years, the Qingshui River in southern Qinghai, the northwest and southeast of Qaidam Basin, Qilian Mountain and the eastern agricultural areas of our province are 0. 1℃ ~ 1.7℃, of which Dulan, Qilian, Xining, Minhe, Datong, Hualong and Qingshui River are lower than 1℃, and Xining is/kloc-. Gangcha and Guide are close to perennial; The temperature in other parts of the province is on the high side. Most of Yushu, Guoluo, southern Huangnan and Tuotuo River are above 65438 0℃, while Yushu, Zaduo and Maduo are above 2℃, which is the highest temperature in the province. The monthly average temperature in the whole province is -9.6℃, which is 0.2℃ higher than the average climate in 197 1 ~ 2000, and is the lowest temperature in the same period since 2000.

In June, 2006, the monthly average temperature was higher in the south than in the north. Compared with the same period of previous years, the temperatures in southern Qinghai, Menyuan, Tole, Dachaidan and Delingha are 4.4 ~ 7.5℃ higher, among which Guinan is the smallest, 4.4℃ higher and Heteropoly is the largest. All the northern areas are higher than 1.9 ~ 4.3℃, with the highest in Nomuhong, which is 4.3℃. The monthly average temperature in the whole province is -6.8℃, which is 4.2℃ higher than the average over the years, and the higher range is 1 bit in the same period since meteorological records were recorded.

In February 2006, the temperature in our province was generally high, ranging from 0.4℃ to 5.3℃, and the high range was basically high in the west and low in the east, among which the high range of Mangya and Tuotuo River was > 5℃. Xining has the smallest height, which is 0.4℃ higher. In February 2006, the average temperature in the whole province was -4.5℃, which was 3.0℃ higher than the average climate in 197 1 ~ 2000, which was the highest temperature in the same period since meteorological data were available in February 2006.

In the winter of 2006, except Xining and Jianzha, the temperature was 0.7℃ and 0.6℃ respectively, and it was higher in other areas, ranging from 0.5℃ to 4.5℃. The higher amplitude is basically high in the west and low in the east, high in the south and low in the north, and the higher amplitude of Tuotuo River is the largest, reaching 4.5℃. The average temperature in the whole province is -6.9℃, which is 2.5℃ higher than the average climate in 197 1 ~ 2000. The winter temperature once again exceeded the highest average temperature in the same period of history after last winter. This winter is the warmest winter since meteorological data were available in our province, and it is also the ninth consecutive warm winter since 1998.

1.2 precipitation

From June, 5438 to February, 2005, compared with the same period of previous years, the precipitation in Tuotuo River was 60% more. Yushu in the northeast, Golomado, Gande, Huangnan Zeku, Gangcha in the east of Qaidam Basin, Haiyan in the north of Qinghai Lake, Haidong Huzhu and Huangzhong in the east are less than 30-90%. There is no precipitation in the rest of the province this month. The average precipitation in the whole province is 0.3mm, which is less than 1, 976,5438+0, and the average climate in 2000 is 1.3mm, and the precipitation in the same period since 1997 is the least.

From June 5438- 10, 2006, the monthly precipitation in most parts of the province was less. Compared with the same period of previous years, the precipitation around Qinghai Lake, western Haixi, Huangyuan, Huzhu, Menyuan, Delingha and other places is1.0 ~ 5.0mm, which is more than 1% ~ 3.3 times, with the western edge of Qaidam Basin and Gangcha being the most, which is more than 1.4 ~ 3.3 times. Huangzhong, Datong, Wulan and other places are close to the annual value; Less than 20% of the rest of the province, including most of Hainan, most of Huangnan, Maqin, Dari, Nangqian, Qumalai, Tuotuo River, Xunhua and other 12 stations, has no precipitation for a whole month. The average precipitation in the whole province is 1. 1mm, which is 1.2mm less than the average for many years, ranking 10 in the same period of history, and 0.9mm less than that in the same period of 2005.

In February 2006, the precipitation in our province was unevenly distributed. The precipitation in central and western Qaidam, eastern and eastern agricultural areas of Haibei, and parts of Guoluo is 6% ~ 400% higher, among which Ledu and Lenghu are 400% higher. There are few other areas, and there is no precipitation in Xinghai for the whole month. The average precipitation in February in our province is 4.5mm, which is the climate average of 197 1 ~ 2000.

In the winter of 2006, the precipitation in our province was less than that in eastern agricultural areas, eastern Haibei and central and western Qaidam Basin. Menyuan Lake and Lenghu Lake are the most abundant, accounting for 168.2% and 14 1.7% respectively. There was no precipitation in Xinghai all winter. The average precipitation in our province is11.5mm, which is less than the average climate in 2000 197 18.2%.

1.3 sunshine

From June 5438 to February 2005, the sunshine hours ranged from192 to 263 h, among which Zaduo, Xunhua and Nuomuhong were slightly less, and Xining, Wulan, Tuotuohe, Yushu and Nangqian were particularly rich, with the sunshine anomaly percentage ranging from10% to13%. Other places in the province are slightly more or more. The average sunshine hours in the province are 234h hours, which is 197 10 hours more than the average climate in 2000 ~ 2005. It is the year with the most sunshine hours in the same period since 2000.

In June 2006, the sunshine hours in the whole province were 140.0 ~ 249.0h, which was 2 1.7h less than the average for many years. Compared with the same period of last year, except Wudaoliang, Qingshuihe, Yushu, Maduo, Dari, Qumalai and Tuotuo River, the rest areas are less than 2% ~ 32%, among which Xining, Huangyuan, Minhe, Ledu and Menyuan are less than 22%. The average sunshine hours in the province are 195.2h, which is at least the third in the same period in history.

In February 2006, the sunshine hours in the whole province were 13.3h ~ 239h, and the average sunshine hours were 192.2h, which was less than the average climate in 200019713.3h.. Compared with the same period of last year, the sunshine hours in southwest Qinghai, Haibei and Guoluo are more than those in previous years, with the most sunshine hours reaching 43%, while those in other areas are less, ranging from 2% to 40%, of which Dulan is the most, reaching 40%.

In the winter of 2006, the sunshine hours in our province were 534.0 ~ 70 1.0h, which was less in other areas except the southern part of Qinghai Plateau. Among them, most of the eastern Haixi, parts of Hainan and eastern agricultural areas are less, and Huangzhong is the least, with a loss of 15.6%. Yushu is the most abundant, with an excess of 8.2% (Attached Figure 3). The average sunshine hours in winter in our province are 620. 1h, which is 25.9h less than the climate average 197 1 ~ 2000 and 4% less.

2 Main weather and climate events and their impacts

In winter of 2006, the main weather and climate events were snowstorms in Yushu, Dulan and Menyuan. In June 2005, the northern part of our province continued to suffer from low temperature and drought, in June 2006, it was extremely hot, and in June 2006, it was a large-scale cold wave and strong cooling.

2. 1 snowstorm

It is called multi-snowstorm, Dulan blizzard and Menyuan blizzard.

2.2 In June 5438+February 2005, the weather in the northern part of our province continued to be low-temperature and dry.

2.3 In June and February, 2006, the weather was unusually hot in our province.

2.4 From March 3 to 5, 2006 10, a large-scale cold wave and strong cooling weather occurred in our province.

3. Impact assessment of climatic conditions on agriculture and animal husbandry

3. 1 Impact assessment of climatic conditions on agriculture

The winter of 2006 is obviously warm, with high temperature and less precipitation, which is conducive to the overwintering of pests.

3.2 Assess the impact of climatic conditions on animal husbandry

Since the catastrophic snowstorm occurred in Qingshuihe area in late June of 5438+ 10, the snow melted slowly due to the low temperature, and the depth of the snow remained between 12 ~ 16cm for a long time, and it only dropped to 1cm on October 24, 2006. The snowstorm caused great losses to the local animal husbandry.

On February 13 ~ 23, 2006, a light snow weather occurred in Dulan after winter. According to the survey, moderate snowstorms occurred in Guli Township and Hot Water Township of dulan county, and some places suffered serious disasters. 4. Climate pre-assessment and countermeasures

According to the forecast of Qinghai Meteorological Observatory, the total precipitation in the east of Haixi in spring is less than 13mm, 80 ~ 140mm in the south of Qinghai, and 30 ~ 100mm in the eastern agricultural area and the rest of the province. Compared with the same period of last year, the western part of Haixi Prefecture and most agricultural areas are less than1~ 20%, and Guoluo, southern Huangnan and Qingshuihe are local. The temperature is slightly higher than that of the same period last year.

According to the forecast results that the total amount of spring precipitation in most areas of the Yellow River Basin and Huangshui Basin in the eastern agricultural area of our province this spring is less than that in the same period of history 1 ~ 20%, and the date of soaking rain and the start date of rainy season are basically close to normal years, it is predicted that there will be moderate drought in Huangzhong, and staged mild drought will occur in the agricultural areas of Guide, Hualong, Datong, Huangyuan, Ping 'an, Ledu, Huzhu, Xunhua, Minhe and Jianzha in spring. Please ask.

In spring, precipitation will continue to be high in most pastoral areas, and there will still be short-term snowfall in some areas. Relevant departments should continue to strengthen disaster prevention and mitigation.