Using midday surface temperature to estimate daily evaporation from satellite thermal IR data
Using midday surface temperature to estimate daily evaporation from satellite thermal IR data
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DOI：
10.1080/01431168308948554
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发表时间：
1983
影响因子：
3.4
通讯作者：
B. Séguin;B. Itier
中科院分区：
文献类型：
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作者：
B. Séguin;B. Itier
我们参与欧洲TELLUS项目所获得的实际经验（HCMM计划的一部分）使我们指出，热惯性概念和复杂的模型对于理解基本过程和进行信息模拟是有用的，但不能用于蒸发的真实的估计。类似于杰克逊等人（1977）提出的简化方法似乎是可行的，但其理论基础和应用领域有待讨论。出现了两个主要问题，即，使用一个瞬时测量值来估计日积分值的基本条件，以及简化关系式ETd = Rnd-B（Ts-Ta）i中调整参数B的意义，该关系式通过一次表面和空气温度测量将日蒸发量与日净辐射联系起来，这些问题是结合最近的实验结果来讨论的。理论分析…
Abstract The practical experience obtained by our participation in the European project TELLUS (a part of the HCMM programme) led us to state that the thermal inertia concept and sophisticated models are useful for understanding basic processes and for performing informative simulations, but cannot be used for a real estimation of evaporation On the other hand, a simplified procedure like that proposed by Jackson et al. (1977) appears feasible, but its theoretical basis and its field of application are subject to discussion. Two main questions arise, namely, the conditions underlying the use of one instantaneous measurement to estimate daily integrated values, and the significance of the adjustment parameter B in the simplified relationship ETd = Rnd − B(Ts − Ta)i which relates the daily evaporation to daily net radiation by means of one measurement of the surface and air temperature, at a given time of day These questions are discussed with reference to results of recent experiments. A theoretical analys...