Base-flow by using Curve-number
Base-flow by using Curve-number
(OP)
How can I get the base-flow in a small watershed based on the curve number or the landuse?
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Base-flow by using Curve-number
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RE: Base-flow by using Curve-number
RE: Base-flow by using Curve-number
RE: Base-flow by using Curve-number
first calculate cum. infiltration for each storm using the CN method and construct infiltration time series. Then look for cross correlation between base flow time series and infiltration time series and come up with a statistical model.
i think this will work for large basins only where regional groundwater movement into basin is somewhat limited.
if the watershed is small i think you should use base flow exponential models.
RE: Base-flow by using Curve-number
I just moved near a creek and I can tell by the salts exactly where the normal base flow (we are in year 7 of a drought) should be. Base flow is so variable that just about any guess is good so long as you use something as a basis. I like using plants because they photograph well for the file and environmentalists seem to feel at ease.