气候变化领域集成服务门户(CCPortal): Evaluation of the GSMaP_Gauge products using rain gauge observations and SWAT model in the Upper Hanjiang River Basin

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DOI	10.1016/j.atmosres.2018.12.032
	Evaluation of the GSMaP_Gauge products using rain gauge observations and SWAT model in the Upper Hanjiang River Basin
	Deng P.; Zhang M.; Bing J.; Jia J.; Zhang D.
发表日期	2019
ISSN	0169-8095
起始页码	153
结束页码	165
卷号	219
英文摘要	Global Satellite Mapping of Precipitation (GSMaP) product is an important satellite precipitation product of Global Precipitation Measurement (GPM) mission, which provides an alternative means to ground-based rainfall estimates, in which case a rigorous product assessment was required before implementation. The objective of this paper is to evaluate and calibrate the errors of GSMaP_Gauge (GG) products, then SWAT model is chosen to evaluate its performance in hydrological simulation. It was found that the GG has a superior ability in detecting moderate rainfall events of 10–20 mm/d, while other magnitude accuracy needs to be strengthened. The Nash-Sutcliffe coefficient of efficiency (NS), coefficient of determination (R 2 ) and the percent bias (PBIAS) were used to evaluate hydrological model performance in the daily scale, supporting the view that GG still allow considerable room for improvement. SWAT model driving by GG performed relatively poorly which is 0.77 ≤ R 2 ≤ 0.84, 0.53 ≤ NS ≤ 0.64 and \|PBIAS\| < 9%, while the performance of corrected GG is relatively better that is 0.85 ≤ R 2 ≤ 0.87, 0.70 ≤ NS ≤ 0.75 and \|PBIAS\| < 15%. Through the error's correction of GG, it brings a better performance of runoff simulation under SWAT modeling, leading to 11.94% and 6.1% maximum increase in NS and R 2 respectively. Certain shortcomings are also noted that improvements to the relative runoff depth errors are limited or worse. But in general, GSMaP product has the potential to be an alternative data source for the research on hydrological simulation and water resources management in data-poor or ungauged basins. © 2019 Elsevier B.V.
英文关键词	GSMaP_Gauge; Hanjiang River Basin; Precipitation correction; Rainfall; SWAT
语种	英语
scopus关键词	Errors; Information management; Rain gages; Runoff; Watersheds; Coefficient of determination; Global precipitation measurement missions; GSMaP_Gauge; Hanjiang rivers; Nash-Sutcliffe coefficient; Precipitation correction; Satellite precipitation products; SWAT; Rain; calibration; error correction; hydrological modeling; rainfall; raingauge; river basin; soil and water assessment tool; China; Hanjiang Basin
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162048
作者单位	Bureau of Hydrology, Changjiang Water Resources Commission, Wuhan, 430010, China; Hubei Provincial Hydrology and Water Resources Investigation Bureau, Wuhan, 430071, China
推荐引用方式 GB/T 7714	Deng P.,Zhang M.,Bing J.,et al. Evaluation of the GSMaP_Gauge products using rain gauge observations and SWAT model in the Upper Hanjiang River Basin[J],2019,219.
APA	Deng P.,Zhang M.,Bing J.,Jia J.,&Zhang D..(2019).Evaluation of the GSMaP_Gauge products using rain gauge observations and SWAT model in the Upper Hanjiang River Basin.Atmospheric Research,219.
MLA	Deng P.,et al."Evaluation of the GSMaP_Gauge products using rain gauge observations and SWAT model in the Upper Hanjiang River Basin".Atmospheric Research 219(2019).