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is water that crosses the soil surface
(i.e., goes from being out in the air to being below ground). |
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| water that passes through a porous medium |
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| Finite amount of water soil can absorb |
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Up to the time of ponding, all rainfall has infiltrated
at time of ponding, infiltration rate = rainfall rate (i = r) |
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| Volumetric Water Content (VWC) |
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Particle density = ms/Vs
(dry) Bulk soil density = mT/VT |
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results from rainfall exceeding the soil’s infiltration rate
occurs when r > i
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| Interflow (subsurface storm flow) |
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results from percolating water hitting a less permeable subsurface layer
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| Saturation excess overland flow |
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results from soil becoming saturated by water table rise
Occurs mainly at the bottom of hill slopes and near stream banks |
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