Comparison between energy balance and mass balance models for actual evapotranspiration assessment

机译：实际蒸散评估中能量平衡和质量平衡模型的比较

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The assessment of the water needs for a specific crop has a fundamental importance in the management of water resources. The application of empirical models able to retrieve estimates of the actual evapotranspiration (ET_a) to assess the need for water could give a valid tool for the planning of water supply, avoiding unnecessary water losses. In this context, two independent models for estimating actual evapotranspiration were compared. The first model is based on an energy balance and uses remotely sensed data and ancillary data from weather stations to assess the ET_a. The second model also uses remotely sensed data and climatic data on a daily basis from a weather network. Field measurements are needed to calibrate both models. The study was conducted in a commercial vineyard located in Napa Valley (California). The observed range of ET_(daily) is included within the values measured by other authors. The results retrieved from both models show actual ET_(daily) values with a different trend over time; after mid-summer (early July) VSIM estimates of ET_(daily) trend downwards, while SEBAL estimates remain fairly constant.rnThis disagreement illustrate the difficulty in estimating the actual evapotranspiration at the end of season, when soil moisture gets low and vine water stress increases due to reducing stomatal conductance.

机译：评估特定作物的水需求在水资源管理中具有根本的重要性。应用能够检索实际蒸散量（ET_a）的估计值以评估水需求的经验模型，可以为规划供水提供有效的工具，避免不必要的水损失。在这种情况下，比较了两个独立的模型来估算实际的蒸散量。第一个模型基于能量平衡，并使用遥感数据和气象站的辅助数据来评估ET_a。第二种模型还每天使用来自气象网络的遥感数据和气候数据。需要现场测量以校准两个模型。该研究是在位于加利福尼亚纳帕谷的商业葡萄园中进行的。观察到的ET_（每日）范围包括在其他作者测得的值内。从两个模型中检索到的结果均显示实际ET_（每日）值，随时间变化趋势不同；在仲夏（7月初）之后，VSIM估计的ET_（每日）趋势下降，而SEBAL估计的趋势仍相当稳定。rn该分歧说明了在季节结束时土壤湿度变低和葡萄水分胁迫时难以估算实际蒸散量的困难。由于气孔导度的降低而增加。

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《Remote sensing for agriculture, ecosystems, and hydrology XI》|2009年|P.747212.1-747212.12|共12页
会议地点 Berlin(DE)
作者
A. Gentile; rnL. Pierce; rnG. Ciraolo; rnG. Zhang; rnG. La Loggia; rnR. Nemani;
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作者单位

IIAA, Depart, of Hydraulic Engineering and Environmental Applications, University of Palermo, Italy;

rnDivision of Science Environmental Policy, California State University Monterey Bay, CA USA;

rnIIAA, Depart, of Hydraulic Engineering and Environmental Applications, University of Palermo, Italy;

rnDepartment of Watershed Sciences, Utah State University, UT USA;

rnIIAA, Depart, of Hydraulic Engineering and Environmental Applications, University of Palermo, Italy;

rnEarth Science Division, NASA Ames Research Center, CA USA;

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原文格式 PDF
正文语种 eng
中图分类环境遥感;
关键词
evapotranspiration; surface energy balance; water balance; viticulture; landsat 5;

机译：蒸散表面能平衡水平衡葡萄栽培；陆地卫星5;

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1. Assessment of actual evapotranspiration over a semiarid heterogeneous land surface by means of coupled low-resolution remote sensing data with an energy balance model: comparison to extra-large aperture scintillometer measurements [J] . Saadi Sameh, Boulet Gilles, Bahir Malik, Hydrology and Earth System Sciences . 2018,第4期

机译：利用耦合的低分辨率遥感数据和能量平衡模型评估半干旱异质土地表面的实际蒸散量：与超大孔径闪烁仪测量结果的比较
2. Assessment of actual evapotranspiration over a semiarid heterogeneous land surface by means of coupled low-resolution remote sensing data with an energy balance model: comparison to extra-large aperture scintillometer measurements [J] . Saadi Sameh, Boulet Gilles, Bahir Malik, Hydrology and Earth System Sciences Discussions . 2018,第4期

机译：通过耦合的低分辨率遥感数据与能量平衡模型的耦合低分辨率遥感数据评估实际蒸散量：与超大孔径闪烁计测量相比
3. Assessment of actual evapotranspiration over a semiarid heterogeneous land surface by means of coupled low-resolution remote sensing data with an energy balance model: comparison to extra-large aperture scintillometer measurements [J] . Saadi Sameh, Boulet Gilles, Bahir Malik, Hydrology and Earth System Sciences . 2018,第4期

机译：通过耦合的低分辨率遥感数据与能量平衡模型的耦合低分辨率遥感数据评估实际蒸散量：与超大孔径闪烁计测量相比
4. Comparison between energy balance and mass balance models for actual evapotranspiration assessment [C] . A. Gentile, L. Pierce, G. Ciraolo, Conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology . 2009

机译：实际蒸散评估能量平衡与质量平衡模型的比较
5. Comparison of evapotranspiration using the aerodynamic and Bowen ratio energy balance methods. [D] . Richardson, Jalyn Cristi. 1996

机译：使用空气动力学和鲍文比能量平衡方法比较蒸散量。
6. A Coupled Remote Sensing and Simplified Surface Energy Balance Approach to Estimate Actual Evapotranspiration from Irrigated Fields [O] . Gabriel B. Senay, Michael Budde, James P. Verdin, 2007

机译：遥感和简化的地表能量平衡耦合方法估算灌溉田的实际蒸散量
7. Actual Evapotranspiration (Water Use) Assessment of the Colorado River Basin at the Landsat Resolution Using the Operational Simplified Surface Energy Balance Model [O] . Ramesh K. Singh, Gabriel B. Senay, Naga M. Velpuri, 2013

机译：利用可操作的简化表面能量平衡模型评估Landsat分辨率下科罗拉多河流域的实际蒸发蒸腾（用水量）
8. Actual Evapotranspiration Modeling Using the Operational Simplified Surface Energy Balance (SSEBop) Approach. [R] . Savoca, M. E., Senay, G. B. 2013

机译：使用操作简化表面能量平衡（ssEBop）方法的实际蒸发蒸腾模型。

Comparison between energy balance and mass balance models for actual evapotranspiration assessment

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