Hello,

I have a transport model in MT3DMS. From the results, I can plot the
concentration contours. Also, from the mass balance, I can read the
total mass of the contaminant in the aquifer.

Question: is it possible to extract information about the total volume
of contaminated groundwater in Visual Modflow? ((e.g. volume with
concentration > 100 ug/L contaminant)?

Thanks,

Greetz,

Arjen

If I were you firstly I would check the boundry condition and
rectify the boundry condition .There might also exist a wrong  data
in your input file that might have been generated due to simple
mistakes.also check for the units and how u convert units this is
common if thats your firt time modeling groundwater flow.

Regards
Mehran


--- In visual-modflow@..., "brngzz" <mi2992@...> wrote:
>
> Dear gio2anne,
>
> as first attempt you can:
> 1) refine the grid;
> 2) change the solver;
>
> 1) in order to refine the grid, in input menu select grid/edit
grid/
> (edit row) or (edit column) or (edit layer)/ refine by (number).
> 2) in order to change the solver in Vmengine window
> select "modflow2000" (on the left). Then try to select another
solver
> (for example PCG2 or WHS, or, LMG, ecc...) and in top menu bar
> select "run".
> Best regard
>
> G. Bernagozzi

Dear gio2anne,

as first attempt you can:
1) refine the grid;
2) change the solver;

1) in order to refine the grid, in input menu select grid/edit grid/
(edit row) or (edit column) or (edit layer)/ refine by (number).
2) in order to change the solver in Vmengine window
select "modflow2000" (on the left). Then try to select another solver
(for example PCG2 or WHS, or, LMG, ecc...) and in top menu bar
select "run".
Best regard

G. Bernagozzi

it's very easy

For example, your model contains 3 layers, You have to just change the name of
the layer in option goto (input module)

good luck


Uma Mahes <indo_mahes@...> a
écrit :                               Sir, i am happy for join the group

    i am very new to the field

    i know only very small about modflow

    i want to run model in second layer also

    but i know single layer

    pls guide me

    thanks

Sir, i am happy for join the group

   i am very new to the field

   i know only very small about modflow

   i want to run model in second layer also

   but i know single layer

   pls guide me

   thanks

Hi Subrata,

   I didn't take any training for MODFLOW but it took me a considerable time to
strengthen my basics and i learnt MODFLOW while working on it. Mcdonald and
Harbaugh book helped me a lot to get hold on gw modeling basics.

   I am currently posted in guwahati and I am looking for some better options.

   I am sending you the references of my thesis, hope this helps.

   If u find any problem in the working of MODFLOW, then you are always welcome.

   With best wishes
   Vivek


subrata halder <shalder_2007@...> wrote:
           Dear Mr. Gupta
Thanks a lot for your valuable information. Pl. send me the list of review
(1972-2007) from your thesis so that I can go through the literatures which will
be helpful to me for my M.Tech dissertation purpose.Do u get any training for
MODFLOW operation?
Where have u posted now?
Awaiting for your reply soon.
yours faithfully,
Subrata Halder
vivek gupta <jazzvivek_2002@...> wrote:
Hi Subrata,

I have done my M.Tech project in Groundwater flow modeling using Visual MODFLOW
in 2006-07, and i may send u the list of review (1972-2007) which i have made
during my thesis, I believe this should help you.

To tell you the truth Subrata, in india very few studies have been carried out
in the field of groundwater flow modeling.

Sciencedirect.com is the best place for getting any literature from all across
the world. Refine your search by searching into the standard journals such as,
Journ. of Hydrol., Ground Water, Agr. Water Mgmt. etc,.

Hoping to hearing from u soon. All the best in whatever u r doing.

Regards

Vivek Gupta
Design Engineer
Tahal Groups
Mo.: 09954757624

subrata halder <shalder_2007@...> wrote:
Hallo

I want to get a list of few literatures related to past & recent -past works on
'Groundwater flow modelling using MODFLOW' in India.
Pl. help.

Thanks
S.Halder

Dear Mr. Gupta
   Thanks a lot for your valuable information. Pl. send me the list of review
(1972-2007) from your thesis so that I can go through the literatures which will
be helpful to me for my M.Tech dissertation purpose.Do u get any training for
MODFLOW operation?
   Where have u posted now?
   Awaiting for your reply soon.
   yours faithfully,
   Subrata Halder
vivek gupta <jazzvivek_2002@...> wrote:
           Hi Subrata,

I have done my M.Tech project in Groundwater flow modeling using Visual MODFLOW
in 2006-07, and i may send u the list of review (1972-2007) which i have made
during my thesis, I believe this should help you.

To tell you the truth Subrata, in india very few studies have been carried out
in the field of groundwater flow modeling.

Sciencedirect.com is the best place for getting any literature from all across
the world. Refine your search by searching into the standard journals such as,
Journ. of Hydrol., Ground Water, Agr. Water Mgmt. etc,.

Hoping to hearing from u soon. All the best in whatever u r doing.

Regards

Vivek Gupta
Design Engineer
Tahal Groups
Mo.: 09954757624

subrata halder <shalder_2007@...> wrote:
Hallo

I want to get a list of few literatures related to past & recent -past works on
'Groundwater flow modelling using MODFLOW' in India.
Pl. help.

Thanks
S.Halder






---------------------------------
  Forgot the famous last words? Access your message archive online. Click here.

[Non-text portions of this message have been removed]

Hi Subrata,

   I have done my M.Tech project in Groundwater flow modeling using Visual
MODFLOW in 2006-07, and i may send u the list of review (1972-2007) which i have
made during my thesis, I believe this should help you.

   To tell you the truth Subrata, in india very few studies have been carried out
in the field of groundwater flow modeling.

   Sciencedirect.com is the best place for getting any literature from all across
the world. Refine your search by searching into the standard journals such as,
Journ. of Hydrol., Ground Water, Agr. Water Mgmt. etc,.

   Hoping to hearing from u soon. All the best in whatever u r doing.

   Regards

   Vivek Gupta
   Design Engineer
   Tahal Groups
   Mo.: 09954757624

subrata halder <shalder_2007@...> wrote:
           Hallo

I want to get a list of few literatures related to past & recent -past works on
'Groundwater flow modelling using MODFLOW' in India.
Pl. help.

Thanks
S.Halder

Hallo

   I want to get a list of  few literatures related to past & recent -past works
on 'Groundwater flow modelling using MODFLOW'  in India.
   Pl. help.

   Thanks
   S.Halder

There will be a Visual MODFLOW + HydroGeo Analyst course organized in Budapest,
Hungary between 2-5 October. Please visit the following link for course details:

www.jaketa.hu/Software/Hirlevel/GIS_MOD_Bud_en.html

Please contact me directly if you need further information.

Best Regards,
András Jakab

Jakab és Társai Kft.
Ipar u. 17.
H-5100 Jászberény, Hungary
Tel./FAX: +36 (57) 502-640
Tel.: +36 (57) 502-641; +36 (30) 935-9966
E-mail 1: ajakab@...
E-mail 2: jakaband@...
www.jaketa.hu

Akciós ajánlatunk: www.jaketa.hu/Software/arlistak_akc.html
Featured Products: www.jaketa.hu/Software/prlists_spec.html


   ----- Original Message -----
   From: wjt0449
   To: visual-modflow@...
   Sent: Monday, September 17, 2007 8:33 PM
   Subject: [visual-modflow] visual modflow 4.1 training course


   Is there anybody knowing a good modflow training course available soon?
   Onsite or online course is fine.

   Thank you very much for your information.

Please see the following links for the forthcoming training programs.

http://www.flowpath.com/training/training.htm
http://training.bossintl.com/html/groundwater-modeling-engineeri.html

Regards
Kumar
================================================
C. P. KUMAR
Scientist 'E1'
National Institute of Hydrology
Jal Vigyan Bhawan
Roorkee - 247667 (Uttarakhand)
INDIA

Web Page : http://www.angelfire.com/nh/cpkumar/
================================================
Unfold the Goddess Within:
http://groups.yahoo.com/group/Shambhavi/
================================================


--- In visual-modflow@..., "wjt0449" <wjt0449@...>
wrote:
>
> Is there anybody knowing a good modflow training course available
soon?
> Onsite or online course is fine.
>
> Thank you very much for your information.
>

Is there anybody knowing a good modflow training course available soon?
Onsite or online course is fine.

Thank you very much for your information.

Dear Professional,

We would like to inform you about an upcoming 4-day course that will be
organized in Budapest, Hungary with the topic: GIS Analysis and Groundwater
Modeling using HydroGeo Analyst and Visual MODFLOW.

The course is organized by Waterloo Hydrogeologic, Inc. A Schlumberger Company
together with Jakab és Társai Kft.

Course Date:    2007 October 2-5
Course Location:    Geological Institute of Hungary

Please visit our website or contact us for more information about this event, or
Click Here to register.

Upon registering please select the following course topic: Making Sense of
Environmental Data with HydroGeo Analyst (HGA), and select Budapest, Hungary as
the course location.

We hope to see you soon at this unique event.

Sincerely,
András Jakab

Jakab és Társai Kft.
Ipar u. 17.
H-5100 Jászberény, Hungary
Tel./FAX: +36 (57) 502-640
Tel.: +36 (57) 502-641; +36 (30) 935-9966
E-mail: ajakab@...
www.jaketa.hu

Featured products: www.jaketa.hu/Software/arlistak_akc.html

hello i'm morroccan student in hydrogeology and I am a new user of visual
modflow.

I would like to have your opinion concerning how to calculate the quantity of
pollutant in gram in a plume simulated using visual modflow. I imagine that one
will use the option zone budget on  the meshs covered by the pollution which one
will multiply by the concentration calculated on each mesh. Except that the
plume covers only one portion of certain meshs. How approach you one in this
case?

Thank you for your assistance.

I'm trying to import a modflow 2000 dataset in Visual Modflow,
created by the MF96to2k.exe tool. The original model was a modflow96
model created in PM Win. I ran in to the following problem:

The original model (modflow96) works with user defined leakance
(VCONT) and transmissivity. Modflow 2000 of course uses conductance
and thickness.

Kz is calculated by Visual Modflow when a modflow 2000 dataset is
imported, using VCONT and thickness of the layers. The thickness of
the layers is defined by hand (when using the MF96to2k tool), which
is a (arbitrary) constant thickness. The layer thickness, however was
also defined in the original PM Win model, and is not constant at all.

I wish to use a discretization file created by PM win,in stead of the
one created by MF96to2k, so I renamed the discretization file to
match the name in the .nam file.

Visual Modflow however, does not accept my discretization file. An
error occurs.

My question: can Visual Modflow import a modflow 2000 model with a
non-constant thickness, and if so, how can I check what the problem
with the PM Win discretization file is?

Thanks,
Arjen  Oord

Hi Elizabeth is very easy..

Lo primero que puedes hacer es realizar para cada una de las capas es una malla
de superficie en SURFER o en la version que tengas de VISUALMODFLOW...

debes generar para estos 4 superficies que te generan tus 3 Capas dentro de
VISUALMODFLOW, es tos archivos son de extensión "*.grd" una vez tengas estas
superficies las importas desde VISUALMODFLOW...

You need more information, tell me...

________________________________________________________________________________
Ing. John Jairo Márquez Molina
Grupo de Investigación en Ingenieria de los
Recursos Hídricos y Desarrollo de Suelos - IREHISA
Línea de Aguas Subterraneas
Universidad del Valle - Colombia
E-mail: jojamarmol@...
Telf: (057) - 321 21 59 Ext 107



----- Mensaje original ----
De: C. P. Kumar <cpkumar@...>
Para: visual-modflow@...
Enviado: martes, 7 de agosto, 2007 22:40:31
Asunto: [visual-modflow] Layer thickness

Date: Tue, 7 Aug 2007 09:33:41 -0400 (EDT)
From: "elizabeth Philip" <philip_kochumol@ yahoo.ca>
Subject: Layer thickness
To: gwmodel-owner@ yahoogroups. com

Hi, Would you please let me know how to make three layers with 0-40m,
40-130 m and 130-400 m layer thickness in VISUALMODFLOW.

Thanks.
EPhilip

Date: Tue, 7 Aug 2007 09:33:41 -0400 (EDT)
From:  "elizabeth Philip" <philip_kochumol@...>
Subject: Layer thickness
To: gwmodel-owner@yahoogroups.com

Hi, Would you please let me know how to make three layers with 0-40m,
40-130 m and 130-400 m layer thickness in VISUALMODFLOW.

Thanks.
EPhilip

Hi Philip,

   Demo excercise/tutorial of VMOD would be of great help to beginners. I guess
you can download this from WHI website.

   Hash.



philip_kochumol <philip_kochumol@...> wrote:
           Hi, Would you please suggest me any text book with exercises on
VISUALMODFLOW.

EPhilip

Hi, Would you please suggest me any text book with exercises on
VISUALMODFLOW.

EPhilip

Dear Member,

Based upon the information received, I have initiated preparing the
directory of groundwater hydrologists. You can access the directory at

http://tech.groups.yahoo.com/group/gwmodel/files/

I again request the remaining groundwater hydrologists in this group
to please forward the following details to my e-mail address
cpkumar@... at your earliest convenience.

* Name
* Official Address
* Phone Number
* FAX Number
* E-mail Address
* Website Address
* Area(s) of Specialization

If you press the reply button, then ensure that default group address
is replaced by cpkumar@... in the "To" field, otherwise the
message will go for posting to entire group.

Regards
Kumar
==================================================
C. P. KUMAR
Scientist 'E1'
National Institute of Hydrology
Jal Vigyan Bhawan
Roorkee - 247667 (Uttarakhand)
INDIA

Web Page : http://www.angelfire.com/nh/cpkumar/
==================================================

Dear Member,

I intend to prepare a directory of groundwater hydrologists. After
compilation, I can upload the directory in the Files section of
gwmodel group (http://tech.groups.yahoo.com/group/gwmodel/files/), so
that anyone can refer to it whenever needed. I therefore request all
the groundwater hydrologists in this group to please forward the
following details to my e-mail address cpkumar@... at your
earliest convenience.

********************************
Name
Official Address

Phone Number
FAX Number
E-mail Address
Website Address

Area(s) of Specialization
********************************

If you press the reply button, then ensure that default group address
is replaced by cpkumar@... in the "To" field, otherwise the
message will go for posting to entire group.

Regards
Kumar
==================================================
C. P. KUMAR
Scientist 'E1'
National Institute of Hydrology
Jal Vigyan Bhawan
Roorkee - 247667 (Uttarakhand)
INDIA

Web Page : http://www.angelfire.com/nh/cpkumar/
==================================================

Hi Dear Members

   I have some querries regarding the Visual modflow simulation. i found this
group and i hope that i will get some guidance in this regard.

   1.I am doing work in an alluvial plain and developing a three layered model of
the unconfined aquifer system of the area. I am bit confused in assigning the
boundary conditions for the canal that whether it should be assigned a stream
boundary or a recharge boundary and moreover it would be assigned on the top
layer or in the other lower layers as well.

   2.If there are streams in the area but those are having a very little flow
whether those should be assigned as the stream boundaries or left opened.

   I will be really thankful.

   Regards

Philip,

If you want to know how to use the program the user guide is very
good, if you want to know something more about the finite difference
method there should be a pdf file attached with the program package
that describes the theory. By the way you can find more about the
engine MODFLOW at the following webpage:

http://water.usgs.gov/nrp/gwsoftware/modflow2000/modflow2000.html

Ciao
Gio


2007/5/3, elizabeth Philip <philip_kochumol@...>:
> Hi, I am just starting  an introductory course in ground water modelling and
will be using VISUAL-MODFLOW. Would you please suggest me of books/notes that I
should refer as a starter.
>
> Thanks
> K. Philip

Hi, I am just starting  an introductory course in ground water modelling and
will be using VISUAL-MODFLOW. Would you please suggest me of books/notes that I
should refer as a starter.

Thanks
K. Philip

Hi members, I am working with Modflow since a couple of months and am
actually using PMWin. Now i am working on this 3D-model which has 20
stressperiods (each 1/2 day) with 12 timesteps each, i.e. 1h length.
Modflow runs up to timestep 8 in stress period 19 and then stops with
the following erro message:
An I/O error was detected (system call=lseek, errno=19, unit=50)
error occurs at _ubudsv_
called from _wel5bd_
called from _MAIN_

If i use only 11 timesteps, the program runs through and the more
timesteps i add the earlier it stops.

I hope someone of you might be able to help me with this.

Thanks in advance.

Maria

Dear Members,

   i am doing research on ground water optimization for coastal region. i need to
optimize pumping rate, etc..,. so i want any GW optimization program with source
code to learn and understand. Please share your ideas and help me in this
regard. if you have any query do mail me.

   With Regards
   Lenin
   Reserach Scholar
   Anna University
   Chennai

just go to the input section that you want to export, then file/export.
It'll walk you through

Best regards,
Arne Springorum


From: visual-modflow@...
[mailto:visual-modflow@...] On Behalf Of syed hashmath
Sent: Saturday, March 10, 2007 11:37 PM
To: gwmodel@yahoogroups.com
Cc: visual-modflow@...
Subject: [visual-modflow] Exporting in VMOD

Hi all,

Is there any option of exporting top, bottom, K, S, Rch etc in VMOD. I wish
to export them in ascii (x,y,z) or in grid format.

Regards,
Hash

Hi all,

   Is there any option of exporting top, bottom, K, S, Rch etc in VMOD.  I wish
to export them in ascii (x,y,z) or in grid format.

   Regards,
   Hash

Hello,

first I have to say, that this group ist very usefull! Thanks!

Here my question:
I have problems with convergence by running the modell. Sometimes you
can see in the residualgraph (running modus) a up and down in a very
regular way. This leads to "no convergence", if the maximun of
iteration ist reached.
Do you have any idea, whats wrong with the model, if doing in this way
by running the model?

Thanks for helping!

I am in Delhi, and would like to know, the vendors from whom the
vmodflow software can be purchased on limited tender basis, for a Govt
organisation. Can anyone pass me on this software by Email or by CD if
it is possible?