气候变化领域集成服务门户(CCPortal): Prediction of evapotranspiration variance in the Budyko framework with the incorporation of soil storage and runoff

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DOI	10.1016/j.scitotenv.2024.171839
	Prediction of evapotranspiration variance in the Budyko framework with the incorporation of soil storage and runoff
	Jun, Changhyun; Narimani, Roya; Yeh, Pat J. -F.; Kim, Sang Yeob; Wu, Chuanhao
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	925
卷号	925
英文摘要	Water availability needs to be accurately assessed to understand and effectively manage hydrologic environments. However, the estimation of evapotranspiration ( ET ) is prone to errors due to the complex interactions that occur between the atmosphere, the Earth ' s surface, and vegetation cover. This paper proposes a novel approach for analyzing the sources of inaccuracy in estimating the annual ET using the Budyko framework (BF), particularly temporal variability in precipitation ( P ), potential evapotranspiration ( E P ), runoff ( R ), and the change in soil storage ( & Aring; S ). Error decomposition is employed to determine the individual contributions of P , R , E P , and & Aring; S to the ET error variance at 12 locations in the state of Illinois using a dataset covering a 22 -year period. To the best of our knowledge, this study represents the first BF-based investigation that considers R in the error decomposition of the predicted ET variance. The ET error variance increases with the variance in the P and R in Illinois and decreases with the covariance between these two variables. In addition, when accounting for & Aring; S in the BF, the scenario in which & Aring; S affects the total available water (i.e., P ) is reliable, with a low prediction error and a 13.87 % lower root mean square error compared with the scenario in which the effect of & Aring; S is negligible. We thus recommend the inclusion of & Aring; S and R as key variables in the BF to improve water budget estimations.
英文关键词	Evapotranspiration estimation; Error variance; Budyko hypothesis; Soil storage; Runoff
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001221707300001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300998
作者单位	Chung Ang University; Monash University; Monash University Malaysia; Konkuk University; Jinan University
推荐引用方式 GB/T 7714	Jun, Changhyun,Narimani, Roya,Yeh, Pat J. -F.,et al. Prediction of evapotranspiration variance in the Budyko framework with the incorporation of soil storage and runoff[J],2024,925.
APA	Jun, Changhyun,Narimani, Roya,Yeh, Pat J. -F.,Kim, Sang Yeob,&Wu, Chuanhao.(2024).Prediction of evapotranspiration variance in the Budyko framework with the incorporation of soil storage and runoff.SCIENCE OF THE TOTAL ENVIRONMENT,925.
MLA	Jun, Changhyun,et al."Prediction of evapotranspiration variance in the Budyko framework with the incorporation of soil storage and runoff".SCIENCE OF THE TOTAL ENVIRONMENT 925(2024).