气候变化领域集成服务门户(CCPortal): Evapotranspiration partition using the multiple energy balance version of the ISBA-A-gs land surface model over two irrigated crops in a semi-Arid Mediterranean region (Marrakech; Morocco)

CCPortal

DOI	10.5194/hess-24-3789-2020
	Evapotranspiration partition using the multiple energy balance version of the ISBA-A-gs land surface model over two irrigated crops in a semi-Arid Mediterranean region (Marrakech; Morocco)
	Aouade G.; Jarlan L.; Ezzahar J.; Er-Raki S.; Napoly A.; Benkaddour A.; Khabba S.; Boulet G.; Garrigues S.; Chehbouni A.; Boone A.
发表日期	2020
ISSN	1027-5606
起始页码	3789
结束页码	3814
卷号	24 期号:7
英文摘要	The main objective of this work is to question the representation of the energy budget in soil-vegetation- atmosphere transfer (SVAT) models for the prediction of the turbulent fluxes in the case of irrigated crops with a complex structure (row) and under strong transient hydric regimes due to irrigation. To this end, the Interaction between Soil, Biosphere, and Atmosphere (ISBA-A-gs) is evaluated at a complex open olive orchard and, for the purposes of comparison, on a winter wheat field taken as an example of a homogeneous canopy. The initial version of ISBA-A-gs, based on a composite energy budget (hereafter ISBA-1P for one patch), is compared to the new multiple energy balance (MEB) version of ISBA that represents a double source arising from the vegetation located above the soil layer. In addition, a patch representation corresponding to two adjacent, uncoupled source schemes (hereafter ISBA-2P for two patches) is also considered for the olive orchard. Continuous observations of evapotranspiration (ET), with an eddy covariance system and plant transpiration (Tr) with sap flow and isotopic methods were used to evaluate the three representations. A preliminary sensitivity analyses showed a strong sensitivity to the parameters related to turbulence in the canopy introduced in the new ISBA-MEB version. For wheat, the ability of the single-and dual-source configuration to reproduce the composite soil-vegetation heat fluxes was very similar; the root mean square error (RMSE) differences between ISBA-1P, ISBA-2P and ISBA-MEB did not exceed 10Wm2 for the latent heat flux. These results showed that a composite energy balance in homogeneous covers is sufficient to reproduce the total convective fluxes. The two configurations are also fairly close to the isotopic observations of transpiration in spite of a light underestimation (overestimation) of ISBA. 1P (ISBA-MEB). At the olive orchard, contrasting results are obtained. The dual-source configurations, including both the uncoupled (ISBA-2P) and the coupled (ISBA-MEB) representations, outperformed the single-source version (ISBA-1P), with slightly better results for ISBA-MEB in predicting both total heat fluxes and evapotranspiration partition. Concerning plant transpiration in particular, the coupled approach ISBA-MEB provides better results than ISBA-1P and, to a lesser extent, ISBA-2P with RMSEs of 1.60, 0.90, and 0.70mmd1 and R2 of 0.43, 0.69, and 0.70 for ISBA-1P, ISBA-2P and ISBA-MEB, respectively. In addition, it is shown that the acceptable predictions of composite convective fluxes by ISBA-2P for the olive orchard are obtained for the wrong reasons as neither of the two patches is in agreement with the observations because of a bad spatial distribution of the roots and a lack of incoming radiation screening for the bare soil patch. This work shows that composite convection fluxes predicted by the SURFace EXternalisée (SURFEX) platform and the partition of evapotranspiration in a highly transient regime due to irrigation is improved for moderately open tree canopies by the new coupled dualsource ISBA-MEB model. It also points out the need for further local-scale evaluations on different crops of various geometry (more open rainfed agriculture or a denser, intensive olive orchard) to provide adequate parameterisation to global database, such as ECOCLIMAP-II, in the view of a global application of the ISBA-MEB model. © 2020 Author(s).
语种	英语
scopus关键词	Agricultural robots; Budget control; Crops; Energy balance; Forecasting; Forestry; Heat flux; Irrigation; Isotopes; Mean square error; Orchards; Sensitivity analysis; Soils; Transpiration; Vegetation; Continuous observation; Eddy covariance systems; Land surface modeling; Mediterranean region; Plant transpiration; Rain fed agriculture; Root mean square errors; Soil-vegetation-atmosphere transfer models; Evapotranspiration; crop plant; energy balance; evapotranspiration; irrigation system; land surface; model; semiarid region; Marrakech [(PRV) Marrakech-Safi]; Marrakech-Safi; Mediterranean Region; Morocco; Triticum aestivum
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159339
作者单位	Aouade, G., Laboratoire de Géoressources/LMI Trema, Faculté des Sciences et Techniques, Université Cadi Ayyad, Marrakech, Morocco, Centre Sdc Maroc, Marrakech, Morocco; Jarlan, L., Centre d'Etudes Spatiales de la Biosphère (CESBIO)/Research Institute for Development (IRD), Toulouse, France; Ezzahar, J., Laboratoire de Mathématiques Informatiques et Systèmes de Communication (MISCOM), École Nationale des Sciences Appliquées, Université Cadi Ayyad, Safi, Morocco, Center for Remote Sensing Applications (CRSA), Mohammed Vi Polytechnic University (UM6P), Ben Guerir, Morocco; Er-Raki, S., Center for Remote Sensing Applications (CRSA), Mohammed Vi Polytechnic University (UM6P), Ben Guerir, Morocco, Laboratoire des Procédés Pour l'Energie Durable et Environnement (ProcEDE), Faculté des Sciences et Techniques, Université Cadi Ayyad, Marrakech, Morocco; Napoly, A., Centre National de Recherches Météorologiques (CNRM), Météo-France/CNRS, Toulouse, France; Benkaddour, A., Laboratoire de Géoressources/LMI Trema, Facul...
推荐引用方式 GB/T 7714	Aouade G.,Jarlan L.,Ezzahar J.,et al. Evapotranspiration partition using the multiple energy balance version of the ISBA-A-gs land surface model over two irrigated crops in a semi-Arid Mediterranean region (Marrakech; Morocco)[J],2020,24(7).
APA	Aouade G..,Jarlan L..,Ezzahar J..,Er-Raki S..,Napoly A..,...&Boone A..(2020).Evapotranspiration partition using the multiple energy balance version of the ISBA-A-gs land surface model over two irrigated crops in a semi-Arid Mediterranean region (Marrakech; Morocco).Hydrology and Earth System Sciences,24(7).
MLA	Aouade G.,et al."Evapotranspiration partition using the multiple energy balance version of the ISBA-A-gs land surface model over two irrigated crops in a semi-Arid Mediterranean region (Marrakech; Morocco)".Hydrology and Earth System Sciences 24.7(2020).