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User Forum

All Topics | Topic "Problem specifiying groundwater inflow to river"
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Author Message
Charles Abolt

Subject: Problem specifiying groundwater inflow to river   
Posted: 2/28/2017 Viewed: 1094 times
I'm having an issue simulating groundwater discharge to the main river in my area.

I currently have it set that the headflow into my river is a constant volume of water per month from one groundwater node, which works fine.

However, when I try to simulate any other discharge from a groundwater node into a lower reach of the river, I get a number of error messages, and numbers that make no sense in my results.

To test what was going on, I reverted back to the last version that worked, and specified an inflow of 0 into a lower section of my river from a groundwater node. This caused a similar set of errors, even though mathematically it shouldn't have made a difference.

Is this a known bug with the software? Is there any work around?

Thanks for any insights.
Stephanie Galaitsi

Subject: Re: Problem specifiying groundwater inflow to river   
Posted: 3/1/2017 Viewed: 587 times
Hi Charles,

Can you tell me a little bit more about the system you're trying to simulate? Does the groundwater come from pumping activities (humans pump up the groundwater), or does it come from an aquifer that naturally seeps water into the river basin?

Have you set it up in WEAP with a groundwater node attached directly (no transmission link) to the different river reaches (e.g. Below River Headflow)?

What error messages are you getting?


Welber Ferreira

Subject: Re: Problem specifiying groundwater inflow to river   
Posted: 3/16/2017 Viewed: 588 times
I'm having same situation. In my city, seasons are well defined, so I'm trying to keep the groundwater giving water during the dry season. However, I couldn't do this.
Stephanie Galaitsi

Subject: Re: Problem specifiying groundwater inflow to river   
Posted: 5/1/2017 Viewed: 580 times
Hi Welber,

Do you mean that you want the groundwater to only supply water during the dry season? How have you tried to do this so far?

Welber Ferreira

Subject: Re: Problem specifiying groundwater inflow to river   
Posted: 6/20/2017 Viewed: 72 times
Yes. During the dry season, the only supply water comes from groundwater. So I have created a transmission link from groundwater (A) to catchment (X), and a runoff/infiltration from this catchment (X) to groundwater (A).
Stephanie Galaitsi

Subject: Re: Problem specifiying groundwater inflow to river   
Posted: 6/21/2017 Viewed: 68 times
Hi Welber,

In your first post, you referred to a city, but now you are referring to a catchment. Does the catchment have demand (have you modeled irrigation?). And since we are discussing the catchment now, does it receive water during the dry season?

Topic "Problem specifiying groundwater inflow to river"