ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Analyses on Characteristics of Air Temperature Change in Hami, Xinjiang in Recent 45 Years
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Abstract:
Based on the meteorological data from 6 observational stations in Hami, Xinjiang during 1961-2005, characteristics of air temperature, daily range, hot day and cool day were analyzed. In order to find the relationship between the tempe rature and other weather conditions, precipitation and cloud fraction were also discussed. The results show that the temperature has increased remarkably in Ha mi area in recent 45 years, with the most obvious [JP2]warming occurring in sum mer, but the warming trends in spring were weak. The warming was the most re markable after the 1990's, and the largest increase range appeared in recent yea rs of the 21st century. Similar to the average temperature, the maximum and min imum temperature had increasing trends. The reason of obvious decrease in da ily range was that the extent of warming in the minimum temperature is larger th an that of the maximum temperature. Under the global warming background, the hot days were increasing but the cool days decreasing. There was some difference in the warming trends in several stations. The possible reasons of the difference are related to the increasing of the precipitation and cloud fraction and the re ducing sunshinehour. Moreover winter average air temperature of Hami jumped in the 1980's, and the jumping time was 5 to 6 years later than that in the other a rea of Xinjiang. Therefore, there were differences in the climate jump in diffe rent area.
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