气候变化领域集成服务门户(CCPortal): Spatial analysis of temperature time series over the Upper Indus Basin (UIB) Pakistan

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DOI	10.1007/s00704-019-02993-8
	Spatial analysis of temperature time series over the Upper Indus Basin (UIB) Pakistan
	Latif, Yasir; Ma Yaoming; Yaseen, Muhammad; Muhammad, Sher; Wazir, Muhammad Atif
通讯作者	Latif, Y (通讯作者)
发表日期	2020
ISSN	0177-798X
EISSN	1434-4483
起始页码	741
结束页码	758
卷号	139 期号:1-2
英文摘要	Runoff generated from the Upper Indus Basin (UIB) mainly originates in the massifs of the Hindukush-Karakoram-Himalaya (HKH) region of Pakistan. Water supply in early spring depends upon the snow accumulation in the winter and the subsequent temperature. Seasonal temperature variations corroborate the contemporary dynamics of snow and glaciers. Recently, there has been increasing evidence of accelerated warming in high mountain areas, termed as elevation-dependent warming (EDW). We have identified trends, analyzed inconsistencies, and calculated changes in the maximum, minimum, mean and diurnal temperature range (T-max, T-min, T-mean, and DTR) at 20 weather stations during four-time series: 1961-2013 (first), 1971-2013 (second), 1981-2013 (third), and 1991-2013 (fourth). We employed the Mann-Kendall test to determine the existence of a trend and Sen's method for the estimation of prevailing trends, whereas homogeneity analysis was applied before trend identification using three different tests. This study revealed that the largest and smallest magnitudes of trends appeared in the winter and summer, respectively, particularly during the fourth data series. T-max revealed robust warming at ten stations, most remarkably at Gupis, Khunjrab, and Naltar at rates of 0.29, 0.36, and 0.43 degrees C/decade, respectively, during the fourth series. We observed that T-min exhibits a mixed pattern of warming and cooling during the second and third series, but cooling becomes stronger during the fourth series, exhibiting significant trends at twelve stations. Khunjrab and Naltar showed steady warming during the fourth series (spring), at rates of 0.26 and 0.13 degrees C/decade in terms of T-mean. The observed decreases in DTR appeared stronger in the fourth series during the summer. These findings tend to partially support the notion of EDW but validate the dominance of cooling spatially and temporally.
关键词	CLIMATE-CHANGE IMPACTS MASS-BALANCE MANN-KENDALL 2 GLACIERS TRENDS KARAKORAM PRECIPITATION RAINFALL VARIABILITY CALIBRATION
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000492215400001
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259920
推荐引用方式 GB/T 7714	Latif, Yasir,Ma Yaoming,Yaseen, Muhammad,et al. Spatial analysis of temperature time series over the Upper Indus Basin (UIB) Pakistan[J]. 中国科学院青藏高原研究所,2020,139(1-2).
APA	Latif, Yasir,Ma Yaoming,Yaseen, Muhammad,Muhammad, Sher,&Wazir, Muhammad Atif.(2020).Spatial analysis of temperature time series over the Upper Indus Basin (UIB) Pakistan.THEORETICAL AND APPLIED CLIMATOLOGY,139(1-2).
MLA	Latif, Yasir,et al."Spatial analysis of temperature time series over the Upper Indus Basin (UIB) Pakistan".THEORETICAL AND APPLIED CLIMATOLOGY 139.1-2(2020).