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(2) If you need the extra control of setting an NDTARG, then use Ponds
rather than Wetlands as your modeling tool; they are functionally very
similar.
(3) In the standard release of SWAT, any infiltration from surface- water
bodies (Ponds, Wetland, Reservoirs, Channels) gets trapped in shallow
aquifer storage. There is a beta version of SWAT that addresses this issue,
but I don't know how widely available it currently (or if it's revised
algorithms have been incorporated into the "standard" version of SWAT).
In any case, if WET_K > zero, you will be losing water from your system - when one would think this water should contribute to base flow. So
beware of such losses, as they can significantly alter your water balance. I
presume this is where your "10% reduction in flow" went to. Otherwise,
why would you expect a reduction in flow?
241-Lake Representation in AVSWATX
Question: I seek some help regarding SWAT model. I am working on
surface water quality and quantity modeling of a long lake (approximately
233 km2) which is in the middle of a watershed. I would like to request you
for a suggestion about how to represent the lake in AVSWATX model.
I have tried in many ways and could not get determine how to represent the
lake in the AVSWATX. Attached are my trials and the actual lake watershed
boundary that i should get at the end of my watershed delineation.
Please suggest/help me about how to represent lake in AVSWATX.
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