1951—2020 年疏勒河流域气温时空变化特征

Subjects: Geosciences >> Atmospheric Sciences submitted time 2023-08-25 Cooperative journals: 《干旱区研究》

王士维 孙栋元 周敏 王亦可 王祥镔 季宗 张文睿 武兰珍

Abstract： The linear tendency, cumulative anomaly, and Mann-Kendall test were used to analyze the temporaland spatial variation of temperature in Dunhuang, Guazhou, and Yumen stations in the Shule River Basin from1951 to 2020. The results revealed that (1) all stations experienced a significant upward trend in averagetemperature, with tendency rates of 0.244 °C·(10a)−1 (P<0.05) for Dunhuang station, 0.209 °C·(10a)−1 (P<0.05)for Guazhou station, and 0.195 ° C · (10a) − 1 (P<0.05) for Yumen station. (2) Dunhuang and Yumen stationsexhibited a significant upward trend in average temperature across all seasons, except for a nonsignificant upwardtrend in summer. (3) the mutation years for average temperature at Dunhuang, Guazhou, and Yumen stations were1998, 1997, and 1995, respectively, with the first main cycles being 58 a, 30 a, and 13 a, respectively. (4) andannual and seasonal average temperatures gradually increased from east to west in the Shule River Basin, withdecreasing nonuniformity coefficients and concentration degrees also observed.
 

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