I'm working in a model to evaluate the impact of a mine in the water supply of
springs and rivers around the mine. My question is: what is better - put the
rivers and springs like river or like drains?
Hello. I'm working in a model to evaluate the impact of a mine in the water supply of springs and rivers around the mine. My question is: what is better - put...
Hello Jeane, it depends on the size and flow of the springs and the connectivity with the aquifer. The main difference between river and drain packages is that...
Hallo Jeane, The drain boundary package in MODFLOW is designed to simulate the effects of features e.g. agricultural drain, which remove water from thw aquifer...
Hallo Jeane, The drain boundary package in MODFLOW is designed to simulate the effects of features e.g. agricultural drain, which remove water from thw aquifer...
Hi, I am a civil engineer from Chile, I work in groundwater exploration. I have two doubts about Visual MODFLOW: 1.- I found a difference between the water...
Amparo Edwards
aedwards@...
Jul 5, 2008 3:37 am
Hallo, 1) You consider the computed heads obtained from Calibration Graph( Calculated vs. observed head) in steady state model. 2) After running the model in...
Hello, I'm having problems when I try to use initial heads from a previous run. I get a messenge like this "your initial heads are below the bottom of layer 1...
Hi Paulo, During 'creation of a new model' in 'model domain' window, u might put such a value of "Zmax" (i.e bottom) in layer 1, which is above the initial...
It seems I am lacking some basic understanding of hydraulics: Why does 1 mm/a of recharge to an aquitard result in a water level rise of 1.000 m? Dieter...
Dieter Plass
plass@...
Aug 25, 2008 1:44 pm
Because you are probably talking about a steady-state simulation, isn´t it? I had a problem like this too. If the K is too low, the porous material is not...
Yes, it is a steady-state simulation. Am I right in assuming that steady-state simulation means that water levels are calculated for a quasi infinite time...
Dieter Plass
plass@...
Aug 26, 2008 9:17 am
Dear Ampro, I guess the data you have put is been interpolated as you need to convert point data into continuous surface. I have done some work for possible...
Hi, 1.- That difference always occurs, but is very little (in my cases is in the second decimal, with head ranging between 0 to 900 m.), so it must be a...
I think the difference between one and the other is that a drain takes the water out of the system and there is no interaction with the groundwater, while a...
Cristina, so far I used river, once more people suggested river, and I obtained a good calibration. But we are cheking the fields data and the model is not...
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