my model is a one-layer model

can i add a second layer above but with different extent ??

]]>

I am learning GMS and already working on a conceptual model. I have a set of data consisting of coordinates and the values for hydraulic conductivity for an aquifer. The K values are not representing the who area of the aquifer and instead it represents a portion of my aquifer. If I want to assign K polygons to my entire boundary, how it can be done in ArcGIS so the results could be utilized in GMS to have K polygons?

Thank you,

Armin

]]>i want to know why at the specified flux boundary the calculated head is equal zero

]]>

I need a help. I have set up a MODFLOW model (attached). The simulation gives correct head change condition. Now I am trying to set up an MT3DMS model. I am providing a constant concentration of 3 mg/l in the specified head cell. I have a well in the package. However, it is not acting as source/sink. I am trying to set an areal source-sink and giving a low areal recharge as not more contaminant add by recharge. However, the contaminant is not moving and its giving 0 concentration overall. Can you please tell me what I am doing wrong? Do I need to provide recharge as the same as constant concentration? Thank you

]]>in my model i had 3 types of boundary conditions one of them is specified flux

i used the modflow-2000 >>package LPF

i drew the arcs then chose the type of arc to be specified flow and entered a value

the i built the 3D grid and ran the model it gave error

>>

i tried for smaller model and it didn't converge (attached photo)

so i want to know if there a certain package or certain way to add specified flow BC ( the outer boundaries)

and how the program would interpolate heads with flow ??? will the GMS convert this flux to head and interpolate them

plzzzz help i searched alot and i want to know the problem urgently

thank you in advance

]]>I would like to know if there is another way than manually assign transient recharge values from 2d array in the recharge package window. I have 120 raster (10 years of monthly recharge) of spatially distributed recharge to load in GMS. I'm thinking of going into MODFLOW input files.

Any ideas?

Regards

]]>I can create animations for each of the two models and merge them together. This works fine for actual gw elevation contours, but it does not for drawdown contours, because the drawdown for model 2 starts at the starting gw for the second model, not the starting gw of the first model. It need to have the second model calculate the drawdown from the starting gw of the first model for the drawdown contours to be continuous between the two models. Is there any way to get the second model to use the first models starting gw elevation for the drawdown calculations.

Any help would be appreciated.

]]>

In addition my model has concentrations in mg/L (I set it up this way because there are other concentrations to be run in here later).

]]>

I have successfully created a Modflow model and a MT3DS models and ran them to determine the groundwater flow field and constituent transport in the ground (figure blow is an example of a constituent plume). Model has 10 layers. This model domain is bounded by ocean from one side (red square).

A separate hydrodynamic model is run for ocean currents and transport to determine the behavior of constituents that seeps to the ocean. My Modflow and MT3DS models are supposed to provide the constituent flux to the ocean (flow and constituent concentration). **I would like to get the constituent flux from each of the model grid cells faces in the ocean side. Would you please let me know how to do this?**

Thank you,

Lalith

]]>I would like to extract zonebudget data from each file from stochastic MODFLOW run. Do anyone know if there is any possibility to run zonebudget automatically for each stochastic file in GMS? If not, I guess it is possible to set up a script to calculate it outside of of the gms environment, for the cells I'm interested in from the .ccf files. But how do I read the cell-to-cell flow file outside GMS?

Thanks for any advice.

Agnes

]]>Is there an easy way to export all material sets generated by TPROGS at the same time? I know that i can export one by right clicking - edit values - export but this is time consuming if you have multiple material sets.

Best regards

Johanna

]]>I am trying to add a specified flow boundary condition to my model to simulate additional recharge that enters from uphill (which is not covered in my modeled area). I have an estimated inflow value of 468,307 m^3/d, which I want to apply to an arc boundary condition. The arc length is 24,880 m, which intersects a total of 819 cells over 21 layers. If I want the inflow to enter through the entire side of my model (through all 819 cells), what flow rate value would I need to enter for my specified flow arc? Do I need to divide my estimated inflow value by the length of the arc?

Thank you,

Brytne

]]>

Thanks for help.

]]>by default the maximum number of stress periods in modflow 2005 is/was originally 1,000. Is this still valid within GMS? In an older thread it was mentioned that there is another compilation of modflow available which can handle up to 10,000 SP.

What is the current state? Thank you.

Regards

Markus

]]>I can run MT3D on my model. However, once I want to use RT3D it gives me this error:

Error: Invalid Flow-Transport Link File

Name of the Flow Term Required=THKSAT

How can I fix this problem?

]]>

I would like to check the effectiveness of using canals to draining water into the ground with the gravity (opposite of drain) without using injection well. How do I model this in GMS modflow?

Please let me know your suggestions.

Thank you,

Lalith

]]>Thanks,

Haley

]]>I have a set of measured Thiophenol concentration values. I can prepare a 3D plume of Thiophenol using 3D Geostatistics tool of GMS (in a 3D grid) in a new GMS project. However, I cannot make this 3D plume grid in an existing model set up that already has both modflow and MT3DMS models in the same region. When I prepare the plume as 3D Grid Data in the same model set up as in modflow and MT3DMS model, GMS requires to delete modflow and MT3DMS 3D grid. The reason why I want to prepare the 3D Thiophenol plume in the same set up as my modflow and MT3DMS model set is because I want to provide the above Thiophonol plume as the initial condition to the M3DMS model? How can I use “3D Data Set -> Grid…” option for this? Or, is my approach to this modeling initial conditions for MT3DMS correct? Please advise me?

Any suggestion to resolve this situation is highly appreciated.

Thank you,

Lalith

]]>