China News Agency, Lhasa, June 16 (Zhajiang Feibo) The Climate Center of the Tibet Autonomous Region released the "Tibet Spring Climate Communiqué 2020" on the 16th. The communiqué shows that from 1981 to 2020, the average temperature in the spring of Tibet (March to May) There was a significant upward trend, and the precipitation increased significantly.
According to the communiqué, through statistical analysis of climatic data from 1981 to 2020, the average temperature in spring in Tibet increased by 0.28°C every 10 years in 40 years; the precipitation increased by 5.2 mm every 10 years; the average sunshine hours decreased every 10 years 6.8 hours.
According to the Climate Center of the Tibet Autonomous Region, the average temperature in Tibet this spring is 4.2°C, which is 0.5°C lower than normal, which is the lowest average temperature in the past 19 years. The average precipitation is 100.7 mm, which is 26.7 mm more than normal, which is the last 10 years. The most years; the average sunshine hours are 728 hours, which is 10 hours more than normal years. It is the only year in the past 8 years.
Zhuoma, chief expert of the Climate Monitoring and Evaluation Office of the Climate Center of the Tibet Autonomous Region, said that frequent precipitation and cooling weather processes in Tibet this spring are the main reason for the relatively low temperature, but from the perspective of climate trends, the temperature is lower this spring On a case-by-case basis, the average spring temperature in Tibet is still rising significantly.
Dolma said that under the background of global climate warming, Tibet's spring is obviously warming, and precipitation is increasing. The development of this warm and humid climate is conducive to the overall improvement of Tibet's ecological environment, such as the growing season of plants and strong winds. And the reduction of sandstorms, etc. However, warming will also cause the snow line to rise, the glaciers to retreat, and the frozen soil to become shallower, which will increase the risk of secondary geological disasters such as accelerated glacier melt water, local snow avalanches, landslides, and debris flows. (Finish)