气候变化领域集成服务门户(CCPortal): Large observational bias on discharge in the Indus River since 1970s

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DOI	10.1038/s41598-018-35600-3
	Large observational bias on discharge in the Indus River since 1970s
	Liu, Jingshi; Kang, Shichang; Hewitt, Kenneth; Hu, Linjin; Li Xianyu
发表日期	2018
ISSN	2045-2322
卷号	8
英文摘要	The discharge of one of the world's largest river - Indus River was reported to be increasing that was not supported by the Karakoram (KK) glacier expansion. A major hydrometric bias was ignored, which seemed similar to the montage that the Himalayan glaciers would disappear. This study proposed a framework for quantifying the bias resulting from inaccurate data affecting hydrologic studies on the Indus. We constructed a statistical model by converting the rating curves of rivers into air temperature (T) - discharge (Q) curves from an adjacent catchment in China where flow measurement was carried out using a standard method. We found that most flow data for the Indus were much greater than the error limits of T-Q curves estimated by daily data, a greater bias occurred in recent decades when discharge increased, the higher the flow was, the larger the bias was. The estimated mean annual and maximum monthly bias was 22.5% and 210%, respectively. These biases indicated that discharge increase in the Indus probably resulted from the large errors of hydrometrics without a scientific basis. We suggested a montage bias was needed in the hydrologic science of KK's rivers that may strongly affect water resource management.
学科领域	Science & Technology - Other Topics
语种	英语
WOS研究方向	Multidisciplinary Sciences
来源期刊	SCIENTIFIC REPORTS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111944
作者单位	Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jingshi,Kang, Shichang,Hewitt, Kenneth,et al. Large observational bias on discharge in the Indus River since 1970s[J]. 中国科学院西北生态环境资源研究院,2018,8.
APA	Liu, Jingshi,Kang, Shichang,Hewitt, Kenneth,Hu, Linjin,&Li Xianyu.(2018).Large observational bias on discharge in the Indus River since 1970s.SCIENTIFIC REPORTS,8.
MLA	Liu, Jingshi,et al."Large observational bias on discharge in the Indus River since 1970s".SCIENTIFIC REPORTS 8(2018).