In this spongy hillslope I would expect high infiltration and reemergence of what I would call delayed baseflow - calling it "groundwater" this high in the topography is bit of a stretch in my opinion. Are there wells high up on the ridge? In any case, this is very beautiful and interesting documentation of a massive rainfall event.
@selkerjss
Жыл бұрын
This water soaked in (with zero direct runoff), then emerged about 100-200m down-slope on a slope with an angle of about 30 degrees. My impression is that the water percolated vertically for something on the order of 50-100m, and then moved laterally for 100-200m. I call that groundwater: you can call it Fred or Pete - these are just labels. "Delayed base flow"? not sure that is well defined in hydrology, but no worries.
@bitem13
Жыл бұрын
Does this suggest limited infiltration rate and impermeable layers or the groundwater is recharged up to that elevation (well above the creek)? It's only coming out in certain places, not everywhere.
@selkerjss
Жыл бұрын
This would be my interpretation: local horizontal impermeable layers that intercept the percolating water. I wish I knew what the "regional" or "deep" groundwater table was doing!
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