China News Service, Xining, January 7 (Sun Rui, Yang Yanhua, Liu Zhiyuan) A reporter learned from the Qinghai Climate Center on the 7th that since late December 2021, there have been three snowy weather processes in Yushu Prefecture, Qinghai Province, which is located in the hinterland of the Three Rivers. , Causing snow to accumulate to varying degrees in many places. At present, some townships have reached the meteorological standard for light to moderate snow disasters. Among them, the snow cover of 11 cm to 13 cm in Moyun Township, Zaduo County, the source of the Lancang River, lasted for 7 days, reaching moderate snow disasters. standard.
Statistics show that as of 8 o'clock on January 6, 2 cm to 5 cm of snow cover is widespread throughout the Sanjiangyuan area, and the depth of snow cover in some towns is 5 cm to 11 cm, which has reached the standard for light to moderate snow disasters in the sense of meteorology. The snow cover of 11 cm to 13 cm in Moyun Township, Zaduo County, the source of the Lancang River, lasted for 7 days and reached the meteorological standard for moderate snow disasters. Yushu City, Qingshuihe Town and Zhenqin Town in Chenduo County, Juola Township, Nangqian County, Quma Maduo Township in Lai County has reached the meteorological standard for mild snow disasters.
The results of satellite remote sensing monitoring by the Qinghai Meteorological Research Institute at 13:00 on the 4th showed that the snow area of the Three River Source area was 134,800 square kilometers, and the proportion of the snow area to the administrative area was 37.75%.
From the perspective of recent snow distribution in the Sanjiangyuan area, from December 19 to 24, 2021, the snow is mainly distributed around Zhaling Lake and Eling Lake at the source of the Yellow River; after December 24, 2021, snow cover in the southern part of the Sanjiangyuan The area began to increase slowly, and the snow coverage reached a maximum of 258,900 square kilometers on December 31, 2021.
According to the Climate Center of Qinghai Province, due to the low temperature in the source area of the Three Rivers and the slower snow melting, the current snow accumulation in many areas of Yushu Prefecture continues, especially the thicker snow on the leeward slopes and low-lying areas in high-altitude areas, which has a certain impact on livestock foraging Impact, remind herders to do a good job of supplementary feeding.
From the winter of 2019 to 2020, 6 meteorological observation stations in the Sanjiangyuan area of Qinghai reached the standard for extremely severe snow disasters, and the number of days of snow cover lasted up to 117 days.
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