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《Plateau Meteorology》 2003-05
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The Standard of Marking off the Four Seasons along Qinghai-Xizang Railway and Its Temperature Variation Analysis

TANG Maocang,\ ZHONG Hai\|ling,\ LI Dong\|liang(Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China)\ \  
We discussed the standard of marking off the four seasons in the Qinghai\|Xizang Plateau, and we think if using the daily average temperature as the index, we should reduce the standard of Zhangbaokun by 5℃ which fits the East China. We mark off the beginning date of the four seasons according to 40 year data of the seven meteorology stations and Wenquan data of 6 years. It found that Golmud and Lhasa have transitory summer, but the main body of the Plateau has no summer between spring and autumn. The area near the mouth of Kunlun mountain has only winter. The temperature varying with the latitude in the Plateau is similar to that in the Plain of East China, The temperature gradient is big in winter and small in summer. The inversion layer in Chaidamu basin is the thickest, which become gradually thinner toward south.
【Fund】: 中国科学院知识创新工程重大项目"青藏铁路工程与多年冻土相互作用及其环境效应"(KZCX1 SW 04)资助
【CateGory Index】: P468
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