Xinjiang Kashgar Hetian now extreme rainfall experts respond to "Southern Xinjiang becomes Jiangnan"
China News Agency, Urumqi, May 13 (Sun Tingwen, Wang Anni) "In fact, southern Xinjiang has not experienced excessive precipitation this year. It has been approximately 10 years since 2000, especially since 2010. The precipitation in the western part of southern Xinjiang has been interdecadal. Increased phenomenon. But this does not mean that 'Southern Xinjiang becomes Jiangnan'. Xinjiang still maintains arid and semi-arid climate characteristics. "
In an interview with the China News Service on the 13th, Senior Engineer Li Haiyan of the Xinjiang Climate Center said that the climatic anomaly in the western South Xinjiang in recent 20 years has increased year by year, which is also a response to global warming. In other words, it is also a global change. An expression of warmth in Xinjiang.
Recently, some media have published "The desert becomes the oasis and the coast becomes the desert?" The rainfall in Xinjiang's inland far exceeded that of Shantou in Xiamen ... "which caused netizens to watch.
The reporter learned from the Xinjiang Climate Center on the 13th that the average precipitation in Xinjiang since this year is about 32.3 millimeters, 22% less than normal. Precipitation in most parts of Xinjiang is relatively low, but it is more than double in the western part of southern Xinjiang (part of Kashgar and Hotan). The western part of southern Xinjiang experienced three short-term heavy rainfalls and hailstorms, which were mainly convective weather, which were the extreme rainfall process in the western part of southern Xinjiang on April 17-23, and the extreme rainfall event in Cele County in Hetian from May 6-7 On May 10, hail in western southern Xinjiang, local short-term heavy rain, etc. Since the beginning of this year, high temperature, low rainfall, windy sand, drought in northern Xinjiang have intensified, and strong convection in southern Xinjiang has become the key word of Xinjiang weather.
Li Haiyan said that since this year, the average temperature in Xinjiang has been 2.9 ° C, which is 2.3 ° C higher than the same period in normal years, the highest in the same period since 1961. The spring and spring period in most areas of southern and northern Xinjiang ranges from 5 to 20 days earlier. “Spring travel in summer”, for southern Xinjiang, it was originally a heavy rainfall event that occurred in summer, but it occurred early in spring. This abnormal phenomenon is related to the abnormally warm climate in Xinjiang in the first half of the year, and it is also related to the national or even northern hemisphere. The climate background is consistent with high temperature, drought and frequent extreme events.
In fact, since last winter, the temperature in northern Xinjiang and eastern Xinjiang has been high for 5 consecutive months, and the rainfall has continued to be low for 6 months. The daily maximum temperature of 34 stations including Naomao Lake in Hami City and Caijia Lake in Changji Prefecture broke through the extreme value in April. High temperatures and low rainfall have caused droughts to appear in most areas north of the Tianshan Mountains, and moderate droughts have occurred in many places. At present, the drought conditions in northern Xinjiang, especially on the northern slopes of the Tianshan Mountains, have further intensified, and the fire and insect weather risk levels have increased.
Since the beginning of this year, especially the strong winds in Xinjiang, there have been up to 7 wind and sand storms of varying degrees in North and South Xinjiang, and there have been 41 dust storms in the Tarim Basin. Since April 17, thunderstorms, strong winds, and hail have occurred in western South Xinjiang. , Strong convective weather such as short-term heavy precipitation, Kashi, Hotan and other places have extreme rainfall events.
Fu Weidong, the chief forecaster of Xinjiang Agricultural Meteorological Observatory, said that the spring of Xinjiang is ahead of schedule this year, and the agricultural activities are relatively advanced. In Northern Xinjiang, the temperature is particularly high, and the precipitation is abnormally low. The high temperature and low precipitation cause the grassland to turn green later than usual. However, most of the agriculture in Xinjiang is currently irrigated, which has little effect on the spring sowing of farmland. This year, there is more precipitation in southern Xinjiang. Because most of southern Xinjiang is saline-alkali land, it will cause the formation of farmland compaction and the difficulty of farmland emergence. However, it will not cause much impact on early-sown crops, winter wheat, and special forest fruits. (Finish)