气候变化领域集成服务门户(CCPortal): Spatiotemporal analysis of precipitation variability in annual, seasonal and extreme values over upper Indus River basin

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DOI	10.1016/j.atmosres.2018.06.019
	Spatiotemporal analysis of precipitation variability in annual, seasonal and extreme values over upper Indus River basin
	Ahmad, Ijaz; Zhang, Fan; Tayyab, Muhammad; Anjum, Muhammad Naveed; Zaman, Muhammad; Liu, Junguo; Farid, Hafiz Umar; Saddique, Qaisar
通讯作者	Ahmad, I (通讯作者)
发表日期	2018
ISSN	0169-8095
EISSN	1873-2895
起始页码	346
结束页码	360
卷号	213
英文摘要	This paper investigates the annual and seasonal precipitation variability at 20 stations over upper Indus River basin (UIRB) by using an innovative trend analysis (ITA) method, Mann-Kendall (MK) and Sen's slope estimator tests. Moreover, the annual precipitation time series is investigated for five precipitation intensities i.e. light, low, moderate, high and heavy; and on a seasonal scale for extreme values i.e. light and heavy precipitation intensities. Annual precipitation showed an increasing trend at four stations in the northeast region and a decreasing trend at two stations in the southeast region of UIRB. On a seasonal scale, the results showed that Garidopatta, Peshawar, Astore and Gupis stations are more sensitive to seasonal precipitation variabilities. Changes in heavy precipitation (> 90th percentile) are found more severe in winter and summer seasons in the northern regions suggesting a probable flooding aggravation. However, a reduction in flooding event observed during the spring season in the southern regions of the UIRB indicating a shift in the precipitation regime from south to north. The results of light precipitation (< 10th percentile) intensity showed that winter and spring seasons are more vulnerable to the occurrence of prolonged drought events. Moreover, ITA method has the advantage of detecting the sub-trends in the precipitation series because of its ability to present the results in graphical format. The results of this study could help to understand seasonal and annual precipitation variability over UIRB and will have imperative insinuations for further studies.
关键词	TREND ANALYSIS CLIMATE-CHANGE MANN-KENDALL REFERENCE EVAPOTRANSPIRATION HYDROLOGICAL CYCLE MONOTONIC TRENDS TEMPORAL TRENDS PAN EVAPORATION UNITED-STATES TEMPERATURE
英文关键词	Trend analysis; ITA; Mann-Kendall; Precipitation; Indus River basin
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000442169800029
来源期刊	ATMOSPHERIC RESEARCH
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/259363
推荐引用方式 GB/T 7714	Ahmad, Ijaz,Zhang, Fan,Tayyab, Muhammad,et al. Spatiotemporal analysis of precipitation variability in annual, seasonal and extreme values over upper Indus River basin[J]. 中国科学院青藏高原研究所,2018,213.
APA	Ahmad, Ijaz.,Zhang, Fan.,Tayyab, Muhammad.,Anjum, Muhammad Naveed.,Zaman, Muhammad.,...&Saddique, Qaisar.(2018).Spatiotemporal analysis of precipitation variability in annual, seasonal and extreme values over upper Indus River basin.ATMOSPHERIC RESEARCH,213.
MLA	Ahmad, Ijaz,et al."Spatiotemporal analysis of precipitation variability in annual, seasonal and extreme values over upper Indus River basin".ATMOSPHERIC RESEARCH 213(2018).