Principles of unsaturated zone
3 important questions on Principles of unsaturated zone
What is surface tension?
A property at the liquid gas interface.
Gives three reasons why a pF-curve differs between wetting and drying conditions.
1. Ink bottle effect caused by inhomogeneity of the different shapes and sizes of the pores.
2. Various liquid-solid contact angles for advancing (wetting) and receding (drying) water meniscus.
3. Air trapped in newly wet soils.
2. Various liquid-solid contact angles for advancing (wetting) and receding (drying) water meniscus.
3. Air trapped in newly wet soils.
What is Storativity and how to calculate it.
How much the entire aquifer changes in water content.
S=Ss*D
S=Ss*D
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