In a study of surface (10 cm) soil moisture modelling, where there is no soil moisture measurement network, we want to use a portable TDR for data measurement in 20 points at a 50 ha catchment. We can have data measurement in just two or three times in a week. Pleas give me your critical comments.
Many thanks!
You may put simple raim gauges in each network node and record % soil humidity and rainfall volumes. Baseflow variations according to inputs would give an approximate drainage model. Data collection would depend on rainfall frequency.
We found that measurements two/three times per week are enough for constraining a soil moisture model. For instance, see our paper on HYP 2008 (attached link 1), but also our studies on soil moisture spatial variability (attached link 2 for the one on WRR).
Of course, for soil moisture modelling you will need meteorological data (rainfall and air temperature) for forcing the model.
Good luck,
L
Article On the estimation of antecedent wetness condition in rainfal...
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