DOI: 10.5194/hess-19-969-2015
Scopus记录号: 2-s2.0-84923359023
论文题名: Development and evaluation of an efficient soil-atmosphere model (FHAVeT) based on the Ross fast solution of the Richards equation for bare soil conditions
作者: Tinet A ; -J ; , Chanzy A ; , Braud I ; , Crevoisier D ; , Lafolie F
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 2 起始页码: 969
结束页码: 980
语种: 英语
Scopus关键词: Environmental management
; Heat transfer
; Solute transport
; Vegetation
; Accurate prediction
; Agricultural management
; Better performance
; Environmental performance
; Intermediate waters
; Pedo-transfer functions
; Physically based modeling
; Vegetation temperature
; Soils
; accuracy assessment
; agricultural management
; bare soil
; energy balance
; heat transfer
; pedotransfer function
; prediction
; Richards equation
; software
英文摘要: In agricultural management, a good timing in operations, such as irrigation or sowing, is essential to enhance both economical and environmental performance. To improve such timing, predictive software are of particular interest. Optimal decision-software would require process modules which provide robust, efficient and accurate predictions while being based on a minimal amount of parameters easily available. The objective of this study is to assess the accuracy of a physically based model with high efficiency. To this aim, this paper develops a coupled model with climatic forcing based on the Ross fast solution for Richards' equation, heat transfer and detailed surface energy balance. The present study is limited to bare soil, but the impact of vegetation can be easily included. The developed model, FHAVeT (Fast Hydro Atmosphere Vegetation Temperature), is evaluated against the coupled model based on the Philip and De Vries (1957) description, TEC. The two models were compared for different climatic and soil conditions. Moreover, the model allows using various pedotransfer functions. The FHAVeT model showed better performance in regards to mass balance, mostly below 0.002 m, and generally improved computation time. In order to allow for a more precise comparison, six time windows were selected. The study demonstrated that the FHAVeT behaviour is quite similar to the TEC behaviour except under some dry conditions. The ability of the models to detect the occurrence of soil intermediate water content thresholds with a 1 day tolerance was also evaluated. Both models agreed in more than 90% of the cases. © 2015 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78598
Appears in Collections: 气候变化事实与影响
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作者单位: Institut National de la Recherche Agronomique, Unite Mixte de Recherche, Environnement Mediterraneen et Modelisation des Agro-Hydrosystemes, Avignon Cedex 9, France; Irstea HHLY-Hydrology-Hydraulics, Lyon-Villeurbanne, France; INRA, UMR LISAH, INRA-IRD-SupAgro, Montpellier, France; Université de Lorraine, CNRS, GeoRessources Laboratory, Vandoeuvre-les-Nancy, France
Recommended Citation:
Tinet A,-J,, Chanzy A,et al. Development and evaluation of an efficient soil-atmosphere model (FHAVeT) based on the Ross fast solution of the Richards equation for bare soil conditions[J]. Hydrology and Earth System Sciences,2015-01-01,19(2)