干旱区生态环境知识资源中心(Arid): Conditioning point and gridded weather data under aridity conditions for calculation of reference evapotranspiration

Arid

DOI	10.1016/j.agwat.2020.106531
	Conditioning point and gridded weather data under aridity conditions for calculation of reference evapotranspiration
	Allen, Richard G.; Dhungel, Ramesh; Dhungana, Bibha; Huntington, Justin; Kilic, Ayse; Morton, Charles
通讯作者	Allen, RG (corresponding author), Univ Idaho, Dept Soil & Water Syst, Res & Extens Ctr, Kimberly, ID 83341 USA.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2021
卷号	245
英文摘要	Meteorological data are often collected in dry, desert regions where the local environments exhibit effects of aridity caused by the lack of evapotranspiration (ET). In contrast, the standard reference ET (ETo) calculations of FAO56 and ASCE assume that the surfaces underlying collected weather data are well-watered so that near-surface meteorological measurements reflect the cooling and humidifying effects of an evaporating surface. In this study, we develop a weather data conditioning process and algorithms to adjust for biases in meteorological data that exhibit aridity effects. The conditioning process is intended to adjust the weather data to better exhibit characteristics of data collected over a well-watered vegetated surface prior to use of the data to estimate reference ET. The procedure involves the extrapolation of air temperature, vapor pressure, and wind speed profiles to and from a regional blending height using standard surface energy balance equations and flux-profile relationships and employing ET estimated for the ambient, dry conditions of an arid weather station and reference ET that should co-exist with weather measurements used to calculation reference ET. Example applications are given with 24-hour weather data and hourly weather data in Idaho and Nevada. Results indicate that reference ETo can be overstated by as much as 25% in southern Idaho and 8% in eastern Nevada. The methodology is intended to be transferrable to other regions and climates and is self-aware of the need for conditioning of weather data according to differences in ambient ET and the reference ET estimates.
英文关键词	Evapotranspiration Aridity Boundary layer profiles Blending height Conditioning Reference evapotranspiration Surface energy balance Weather data
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000606745000001
WOS关键词	SURFACE FLUXES ; IRRIGATION ; MODEL ; INTERPOLATION ; TEMPERATURE ; VARIABILITY ; CALIBRATION ; MANAGEMENT ; ACCURACY ; CLIMATE
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
来源机构	Desert Research Institute
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347645
作者单位	[Allen, Richard G.] Univ Idaho, Dept Soil & Water Syst, Res & Extens Ctr, Kimberly, ID 83341 USA; [Dhungel, Ramesh] Kansas State Univ, Dept Agron, Manhattan, KS 66506 USA; [Dhungana, Bibha] Sheffield Sci LLC, Houston, TX USA; [Huntington, Justin; Morton, Charles] Desert Res Inst, Reno, NV USA; [Kilic, Ayse] Univ Nebraska, Lincoln, NE USA
推荐引用方式 GB/T 7714	Allen, Richard G.,Dhungel, Ramesh,Dhungana, Bibha,et al. Conditioning point and gridded weather data under aridity conditions for calculation of reference evapotranspiration[J]. Desert Research Institute,2021,245.
APA	Allen, Richard G.,Dhungel, Ramesh,Dhungana, Bibha,Huntington, Justin,Kilic, Ayse,&Morton, Charles.(2021).Conditioning point and gridded weather data under aridity conditions for calculation of reference evapotranspiration.AGRICULTURAL WATER MANAGEMENT,245.
MLA	Allen, Richard G.,et al."Conditioning point and gridded weather data under aridity conditions for calculation of reference evapotranspiration".AGRICULTURAL WATER MANAGEMENT 245(2021).