Author(s): Lingmei Huang; Bing Shen; Xiaoyu Song
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Keywords: Hotan oasis; Temperature; Evaporation; Humidity; Rainfall; River runoff
Abstract: This paper presents the results of analysis of the observed temperatures and runoffs in the Hotan oasis during the second half of the 20th century. The methods of deviation and accumulated difference and the Kendall’s rank verification were used to analyze the observed data of temperature and river runoff in the Hotan oasis in the second half of last century. It is foundshowed that the annual average temperature had a clear and gradual trend of increase, which means it fell has been going throughinto a warming period. The evaporation changed in accordance with the temperature. The rainfall varied dramatically from year to year and it distributed unevenlyconcentratively within one year. Some unusual rainfall events whappenedere observed. The atmosphere humidity changed littleonly slightly, because water vapor would diffuse rapidly to the surrounding desert around. The river runoff had a distinct trend of decrease due to human activity, such as water diversion for irrigation.
Year: 2004