Soil Moisture at Owada, estimated from potential Evapotranspiration
نویسندگان
چکیده
منابع مشابه
Diurnal Method for Evapotranspiration Estimation from Soil Moisture Profile
Water use of plants can be manifested in diurnal signal of soil moisture changes, and also of water table fluctuations in shallow water table environments. The signal can be especially strong in case of groundwater dependent forest vegetation with high water demand, where the water uptake is partly happening across the capillary zone. A new technique for water uptake estimation was elaborated o...
متن کاملObserved timescales of evapotranspiration response to soil moisture
[1] The sensitivity of evapotranspiration (ET) to soil moisture storage plays an important role in the landatmosphere system. Yet little is known about its magnitude, or its dependence on vegetation, soil, and/or climate characteristics. Here we relate the sensitivity to the timescale of ET decay in absence of rainfall, and show that it can thus be derived from time series of ET alone. We analy...
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An overview of the ‘triangle’ method for estimating soil surface wetness and evapotranspiration fraction from satellite imagery is presented here. The method is insensitive to initial atmospheric and surface conditions, net radiation and atmospheric correction, yet can yield accuracies comparable to other methods. We describe the method first from the standpoint of the how the triangle is obser...
متن کاملPolarimetric Soil Moisture Retrieval at Short Wavelength
Soil moisture was assessed with quad-polarimetric TerraSAR-X and dual-polarimetric (HH/VV) TanDEM-X data from the agricultural region of Wallerfing, Germany. The investigations included a bare soil case in April 2009 (TerraSAR-X) and a time series of 04-07/2011 (TanDEM-X) to estimate soil moisture on bare and vegetated soils including different agricultural crop types at various phenological st...
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ژورنال
عنوان ژورنال: Journal of Agricultural Meteorology
سال: 1957
ISSN: 0021-8588,1881-0136
DOI: 10.2480/agrmet.12.81