干旱区生态环境知识资源中心(Arid): Estimating daily evapotranspiration in the agricultural-pastoral ecotone in Northwest China: A comparative analysis of the Complementary Relationship, WRF-CLM4.0, and WRF-Noah methods

Arid

DOI	10.1016/j.scitotenv.2020.138635
	Estimating daily evapotranspiration in the agricultural-pastoral ecotone in Northwest China: A comparative analysis of the Complementary Relationship, WRF-CLM4.0, and WRF-Noah methods
	Xu, Xuefeng; Li, Xuliang; Wang, Xuejin; He, Chansheng; Tian, Wei; Tian, Jie; Yang, Lixiao
通讯作者	He, CS
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2020
卷号	729
英文摘要	Accurate estimation of evapotranspiration (ET) over regional scale is essential for ecohydrological research, agricultural production, and water resources management. However, few studies have been done to estimate regional ET in data lacking, highly heterogeneous arid areas such as the Agricultural-Pastoral Ecotone in Northwest China (APENC). In this study, we compared three actual ET-estimation methods driven by Weather Research and Forecasting (WRF) model in a semi-arid region. We selected the state of the art Weather Research and Forecasting-Community Land Model 4.0 (WRF-CLM4.0) model, the widely used WRF-Noah model and an empirical Complementary Relationship (CR) model to compare their model structures and mechanisms of estimating daily ET in the study region. The WRF model was chosen to address the problem of data scarcity in the study region and to derive model input for ET estimation with high spatial resolution. The seasonal and pooled performances of the three models were verified with in situ observations. Results indicate that the WRFCLM4.0 model shows a better applicability in the study region, with a superior performance for the pooled datasets (Pearson correlation coefficient [r] = 0.89, root-mean-square error [RMSE] = 0.66 mm/d and NashSutcliffe efficiency coefficient [NSE] = 0.90), while the CR model has a comparable performance (r = 0.91, RMSE= 0.86mm/d andNSE= 0.85) and theWRF-Noahmodel shows theworst performance (r= 0.82, RMSE= 0.94 mm/d and NSE = 0.81). The differences are mainly caused by different representations of the land surface characteristics and hydrology of the study region by the three different models. Our analysis shows that theWRFCLM4.0 model and the CR model are more applicable to the APENC than the WRF-Noah model. For regional applications, the CR model, with fewer parameters and simpler structure, is able to capture the local characteristic and well-suited for data lacking, highly heterogeneous landscapes such as the APENC. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Daily regional ET Complementary relationship Community land model Noah model Weather research and forecasting Agricultural-pastoral ecotone in Northwest China
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000537441700010
WOS关键词	LAND USE/COVER CHANGE ; AGROPASTORAL ECOTONE ; MODEL PERFORMANCE ; NORTHERN CHINA ; LOESS PLATEAU ; WATER ; SOIL ; EVAPORATION ; MOISTURE ; DESERTIFICATION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324604
作者单位	[Xu, Xuefeng; Li, Xuliang; Wang, Xuejin; He, Chansheng; Tian, Wei; Tian, Jie; Yang, Lixiao] Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab West Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China; [He, Chansheng] Western Michigan Univ, Dept Geog, Kalamazoo, MI 49008 USA
推荐引用方式 GB/T 7714	Xu, Xuefeng,Li, Xuliang,Wang, Xuejin,et al. Estimating daily evapotranspiration in the agricultural-pastoral ecotone in Northwest China: A comparative analysis of the Complementary Relationship, WRF-CLM4.0, and WRF-Noah methods[J]. 兰州大学,2020,729.
APA	Xu, Xuefeng.,Li, Xuliang.,Wang, Xuejin.,He, Chansheng.,Tian, Wei.,...&Yang, Lixiao.(2020).Estimating daily evapotranspiration in the agricultural-pastoral ecotone in Northwest China: A comparative analysis of the Complementary Relationship, WRF-CLM4.0, and WRF-Noah methods.SCIENCE OF THE TOTAL ENVIRONMENT,729.
MLA	Xu, Xuefeng,et al."Estimating daily evapotranspiration in the agricultural-pastoral ecotone in Northwest China: A comparative analysis of the Complementary Relationship, WRF-CLM4.0, and WRF-Noah methods".SCIENCE OF THE TOTAL ENVIRONMENT 729(2020).