Hi, Marcio,
Thanks for answer.
The project with "inflow into the shaft" is over.
Writing my mail (many, many months ago) I did not know many details.
Finally I had to assume that... shaft is hermetic.
On the other hand I never used DAFLOW...
Regards,
Adam
U¿ytkownik arcds_dis napisa³:
> Hi Adam,
>
> This is one most of the problems that we have when using Modflow.
>
> Why din't you try to use DAFLOW that simulates interactin between
> subsurface and surface waters, mainly in open channels?
>
> Greetings,
>
> Marcio
> Brazil
>
> --- In visual-modflow@..., "adam_mendakiewicz"
> <adam_mendakiewicz@y...> wrote:
>
>>Dear All,
>>Have you got any experience in modellig of water inflow in mine
>
> shaft ?
>
>>The problem is how to model the shaft?
>>
>>The shaft is 400m deep, its perimeter is 4m. There are 3 vertical
>>dewatering boreholes located around. The value of total inflow into
>>the shaft is known, the inflow comes from several aquifers.
>>A vertical barrier of impervious material is planned arround the
>
> shaft
>
>>(from ground surface level to a depth of 70m) and the dewatering
>>borholes closed. The goal of the model is to find what will happen
>>with the water table and how much the inflow may decrease.
>>
>>What should be the best aproach in modelling the shaft?
>>
>>Adam
Dear Mr. Gupta,
THe problem can be handled in following manner:
1) For getting real world coordinate in desired projection from Lat/Long bound
you can take help of image processing facility available at RRSSC-Kharagpur,
mostly UTM co-ordinatees area desired.
2) Orianting grid is matter of ease of work, however if you are inputing as
DXF or any GIS layer they are north oriented. Grid can be oriented after
inputing the layer, but to best my knowledge you to feed your inputs again if
you do not find vid media.
Reply if it helps
Suparn
vivek gupta <jazzvivek_2002@...> wrote:
Hello Sir/Madam,
I m using Visual Modflow v.4.0 for Groundwater flow Modeling.As i m
a new user i m experiencing very elementry problems:-
1) In georeferencing a graphic file,it requires X AND Y world co-
ordinates, i want to know whether i have to enter Lat-Long directly
for X and Y World coordinate or is there some other transformation i
have to use.In manual i saw that coordinates are in five digit
figures so i want to ask something abt real world coordinates for
how to get them for particular grid location.
2) My study area is oriented in south eastward direction, firstly do
i need to orient Grid,secondly i want to know whether i have to
orient my Grid before georeferencing or after, thirdly on what basis
i shud orient my grid, i mean what r the things that r to be taken
care while orienting our model domain.
I m really looking forward for getting my answers as soon as
possibles, i will highly appreciate all of u for helping me...
Thank you.
Vivek Gupta , Mtech( water resources), IIT kharagpur, India
Hello Sir/Madam,
I m using Visual Modflow v.4.0 for Groundwater flow Modeling.As i m
a new user i m experiencing very elementry problems:-
1) In georeferencing a graphic file,it requires X AND Y world co-
ordinates, i want to know whether i have to enter Lat-Long directly
for X and Y World coordinate or is there some other transformation i
have to use.In manual i saw that coordinates are in five digit
figures so i want to ask something abt real world coordinates for
how to get them for particular grid location.
2) My study area is oriented in south eastward direction, firstly do
i need to orient Grid,secondly i want to know whether i have to
orient my Grid before georeferencing or after, thirdly on what basis
i shud orient my grid, i mean what r the things that r to be taken
care while orienting our model domain.
I m really looking forward for getting my answers as soon as
possibles, i will highly appreciate all of u for helping me...
Thank you.
Vivek Gupta , Mtech( water resources), IIT kharagpur, India
Hi Adam,
This is one most of the problems that we have when using Modflow.
Why din't you try to use DAFLOW that simulates interactin between
subsurface and surface waters, mainly in open channels?
Greetings,
Marcio
Brazil
--- In visual-modflow@..., "adam_mendakiewicz"
<adam_mendakiewicz@y...> wrote:
>
> Dear All,
> Have you got any experience in modellig of water inflow in mine
shaft ?
> The problem is how to model the shaft?
>
> The shaft is 400m deep, its perimeter is 4m. There are 3 vertical
> dewatering boreholes located around. The value of total inflow into
> the shaft is known, the inflow comes from several aquifers.
> A vertical barrier of impervious material is planned arround the
shaft
> (from ground surface level to a depth of 70m) and the dewatering
> borholes closed. The goal of the model is to find what will happen
> with the water table and how much the inflow may decrease.
>
> What should be the best aproach in modelling the shaft?
>
> Adam
>
Kampala, 10th July 2006 19:35HRS (EAT)
Hello Francesca,
The file which holds the grid information is "projectname.vmf" and grid
discretisation information is in "projectname.vmg". But if I understand your
problem, then this wont really help you. Those files only contain grid
information and in Visual ModFlow, grids are in row and column format, where
columns always run from top to bottom and rows run across the screen. In my
view it seems that you probably have an overlay map/image but do not like
the way it is oriented over the grid.
At this stage, if you re-orient the map over the grid to suit your
preference, then the underlying grid data for any cell (elevations,
properties, etc) won't correspond to the same geographic location that the
map shows and so the whole model won't really make sense. (E.g: wells won't
move with the overlay, cell elevations will not alter accordingly, etc)
Ideally, to do what you want to do, you would have to start from scratch and
redo the model with a re-oriented map. Then also re-orient the grid cell
properties data to ensure that each cell's properties are assigned to the
same spot as before.Be carefull as you add the cell data because it has to
be in effect reoriented as well. Then, your whole model will be reoriented.
(To avoid this, I usually choose my overlay map/image orientation before I
begin creating the model.)
Another option is that if you are only after the aesthetic benefit of
reorientation, you could use 3D exlporer, remove the grid display and rotate
the entire model. Then you could capture that image with any desired outputs
and add the grid to the captured image externally. But essentially, you wont
have reoriented the model, only the model display image.
The actual truth is in as far as I know, you probably have to redo the model
with a priorly reoriented map to get exactly what you want. Exporting,
reorienting and then importing the cell data may create more critical errors
that you may not be see until after allot of time and effort has been put
in. So if you really have to re-orient, for excellence or any other reason,
then the safest way is to redo the model from scratch, which will be easier
though since yo're familiar with the data now
Hope that was helpfull. Someone from the group was a great help to me when I
was starting, so I like to return the favour.
Wish you all the best. Id love to have a look at your finding in the end, if
you dont mind.
God bless and hope you succeed,
Kakimpa Bruce
Bsc. Civil Engineering
Makerere University
Kampala, Uganda
[Non-text portions of this message have been removed]
Francesca, if you think about rotating your model you might have to first
export all your inputs based on model coordinates (instead of world
coordinates). Then you can recreate the model relatively easy. I don't think
you can rotate the model domain without starting from scratch. But importing
would make things go much faster.
a
-----Original Message-----
From: visual-modflow@...
[mailto:visual-modflow@...]On Behalf Of Francesca
Sent: Thursday, July 06, 2006 6:23 AM
To: visual-modflow@...
Subject: [visual-modflow] VModflow 3.1 grid exportation
Hello everybody, I'm new in the group and I've used Visual Modflow 3.1
just for one model. I'm now at a good point, good model, good
calibration... but I think it would improve changing the grid
orientation. Does everybody know how can I do in an already existing
model without doing it anew? Which are the files in which grid
information are stored?
Thanks everybody! Fra
I'm experiencing a problem while trying to run a model. I choose Run
-> Run -> Translate & Run. It translates but doesn't start the numeric
engine.
Has anyone ever experienced something like that???
I think it may be a error added to the vmf file due to previous
erroneous run of the model which resulted in abnormal termination.
Then I thought in deleting the 'track' of this error left in vmf file,
like 'reseting' the run part in the vmf file. Does anyone know how do
I do that???
Thanks in advance, and sorry for the quite certain mistakes in my
concepts about this issue.
Samuel
go to Grid>Edit Grid here you can add, remove, refine or course etc. the grid.
shimul
Room No 92, Pleinlaan 2
1050 Brussels
Belgium
Phone: +3226295592
Mobile: +32484928897
Francesca <fralotti@...> wrote: Hello everybody, I'm new in the group and
I've used Visual Modflow 3.1
just for one model. I'm now at a good point, good model, good
calibration... but I think it would improve changing the grid
orientation. Does everybody know how can I do in an already existing
model without doing it anew? Which are the files in which grid
information are stored?
Thanks everybody!
Fra
Hello everybody, I'm new in the group and I've used Visual Modflow 3.1
just for one model. I'm now at a good point, good model, good
calibration... but I think it would improve changing the grid
orientation. Does everybody know how can I do in an already existing
model without doing it anew? Which are the files in which grid
information are stored?
Thanks everybody! Fra
===========================================================
Please note deadline for applications is June 7th 2006.
Terms of reference may be found in the following documents:
Strategic Study of Groundwater Resources in Prey Veng and Svay Rieng
Phase 2
http://www.seila.gov.kh/english/consult_en.asp?
language=en&pgid=30&title=Consultant
A Senior Hydrogeologist is required (57 person-days)
The Senior Hydrogeologist will be a senior international expert in
the development and application of groundwater models for water-
resources applications. The Senior Hydrogeologist will have overall
responsibility for model development and will oversee the work of
the Intermediate Hydrogeologist. It is envisaged that the Senior
Hydrogeologist will be based overseas and will conduct the majority
of his/her work at home base, communicating with the team in
Cambodia by e-mail. Provision will be made for the Senior
Hydrogeologist to make two visits to Cambodia of 2-3 weeks each.
Model development will be based on the data collected during the
already completed Phase 1 study.
http://203.223.42.59:8080/downloads/SSGWRPVSR_STFS-FinalReport_05-12-
23.pdf
STRATEGIC STUDY OF GROUNDWATER RESOURCES IN PREY VENG AND SVAY RIENG
(PHASE 1) With funding from IFAD-RPRP project, STFS contracted IDE
to carry out the first phase of a strategic study of groundwater
resources in Prey Veng and Svay Rieng provinces. The objective of
the study is to assess the potential for sustainable development of
groundwater irrigation in Prey Veng and Svay Rieng provinces,
considering the availability of groundwater resources and other
environmental constraints. The first phase comprised collection and
interpretation of existing data on groundwater availability and
groundwater use, and recommendations for subsequent phases of the
study.
Other members of the four person team have already been selected.
GEB Development, a respected national consulting and construction
company with strong links to the Cambodian Ministry of Rural
Development, will prepare the bid. GEB Corp may also be contacted
directly at:
GEB Development Corporation
Chhum Bok Village
Kompong Speu, Cambodia
Email1: Landmine_Mapper@...
Email2: geb@...
Hi guys
I've just joined in this group to get some help.
I've two pumping test data for two different layers pupmped at the
same place in different time.
for that two test i'm getting completely opposite conductivity for
each layer!!! and not able to yield designed water while pumping in
the top layer.
can anyone tell me how to increase the yield. for ur information i've
limitation on conductivity and already tried with rewetting and
relaxation parameter:(
thank u.
Madflow:(
Is there anyone whom may help me in placing a multilevel monitoring
well in Visual MODFLOW 2.8.2???
My problem is:
#1 I choose Head Obs.
#2 I set two observation points: raso (shallow) and profundo
(deep),
and their respective depths, 8.5 and 11.7 meters.
#3 I set the head observed after 30 days, but just for one of the
depths I'm observing.
It appears to me I may be missunderstanding few concepts like
'monitoring well' and 'observation point', or entering information in
the wrong window, then there would be a window for static heads, and
this window (Head Obs.) would be useful for pump tests but not for
static heads, or I must add two different observation wells in the
same
location, with two different observation point depth, and two
different
head after the same 30 days.
Sorry about my poor english.
Thanks in advance,
Samuel Siqueira.
This is a brief email to provide information on the upcoming model
calibration and uncertainty analysis course – using PEST – in late summer
2006.
Regards – Matt Tonkin
pest@... <mailto:pest@...>
Calibration and Predictive Uncertainty Analysis Using PEST, San Francisco,
Fall, 2006
In collaboration with the Groundwater Resources Association of California
(GRA) the third annual California PEST Course will be presented at the Savoy
Hotel in San Francisco, September 13th to 15th, 2006. The instructors will
be Dr. John Doherty, the author of PEST, and Matt Tonkin.
For more details visit http://www.sspa.com/PEST/training.html
<http://www.sspa.com/PEST/training.html> or to register for the course,
visit http://www.grac.org/pest.html <http://www.grac.org/pest.html> .
Further info about PEST can be found at pest@... <mailto:pest@...>
. This account is used to circulate occasional information on courses and
software updates. PEST has been freeware since February 2001 and is
available at http://www.sspa.com/PEST <http://www.sspa.com/PEST> .
[Non-text portions of this message have been removed]
Dear,
Hello!
I am working on ground water modeling using software Visual Modflow
V2.8. We are facing a problem while importing data. We have 5 pumping
test data and while importing transmissivity/well depth value
(unloading arc/info point coverage) but the software is not
interpolating (Inverse Distance Weighted) the data for the entire
grids. Please guide us in this matter.
With regards,
Suparn Pathak
PS. We also tried interpolating it outside and feed as .GRD surfer
format but failed.
Dear Sir/M'am,
Hello!
I am working on ground water modeling using software Visual Modflow V2.8. We
are facing a problem while importing data. We have 5 pumping test data and while
importing transmissivity value (unloading arc/info point coverage) but the
software is not interpolating (Inverse Distance Weighted) the data for the
entire grids. Please guide us in this matter.
With regards,
Kunwar Pratap
PS. We also tried interpolating it outside and feed as .GRD surfer format but
failed.
---------------------------------
Jiyo cricket on Yahoo! India cricket
Yahoo! Messenger Mobile Stay in touch with your buddies all the time.
[Non-text portions of this message have been removed]
hi,
i am in need of the details about the base map, how it should be? what are the
necessary points to be present in the base map, bcoz i am preparing the base map
of my study area. so can anyone help me?( i am not having any satelite photos of
my study area.)
sridevi.
sri devi <sri_jrl@...> wrote:
hi,
I am preparing the base map for my project work. Does it accept only satellite
images or shall we prepare the map with all important details? Then which
salient features are to be present in that map? I am in the initial stage of my
project only, and i have to complete within two months. I am expecting the
suggestions from our group as quick as posssible.
bye
sri.
Jakab András wrote:
Joseph,
You may only rotate the model domain during model setup, i.e., when you
build your model. You may do it by specifying a base map when you define
your model grid. This step will enable to rotate, align, or resize your grid
over the base map. Rotating the grid may be done using the rotation icon in
the Select Model Region window or specifying a rotation angle. I have never
had problems using this feature. Please let me know if this is not the
answer you were expecting to receive.
András
----- Original Message -----
From: "Joseph Zume"
To:
Sent: Tuesday, January 17, 2006 6:57 AM
Subject: [visual-modflow] Grid orientation
> Hello everyone,
> I am a not-so-experienced modeller and new in the group. I have started
> a modeling exercise with Visual MODFLOW and need help on rotating the
> model domain over my basemap. The instructions in the manual look
> straightforward but when I follow them and rotate the grid my basemap
> rotates also in the final grid layout. Here is what I mean: My aquifer
> trends in a southeasterly direction but groundwater flow is
> southwesterly. When I import the basemap and try to allign the model
> domain with the flow direction, the aquifer appears horizontal (map)
> in the final grid layout. Any suggestions to help me? I will really
> appreciate it.
> Joseph
Hi Bruce,
I advise you to have a geological cross section as well.
From c/s:
- First, differentiate between aquitards and aquifers.
- Join similar geological layers (aquifers and aquitards) into a single layer
called hydrostratigraphic unit or layer.
- Try reducing layers.
- Finally, u will come up with layers of the model.
- Decide areal extent of the model.
- Choose no flow boundary condition, if any of the layer is in contact with
basement(physical boundary of the model).
- Choose constant head boundary on the other sides of the model boundaries if
the effect of the stresses will not change the head.
- See where the recharge is possible (out crops) and choose those areas as
recharge boundary condition.
With more information coming, you can update your conceptual model.
Hashmath
Bruce Kakimpa <brucekakimpa@...> wrote:
Hi, Im at the conceptualisation stage of a groundwater model. I have a
geological map and would like to derive some basic system concept from
it.
can anyon give me some guidance on this?
Thank you.
Hi, Im at the conceptualisation stage of a groundwater model. I have a
geological map and would like to derive some basic system concept from
it.
can anyon give me some guidance on this?
Thank you.
hi sri devi,
It depends on your model, what type of maps you use.
I usually use several .DXF or .shp files prepared from any GIS software, one
each for each property like recharge (outcrops maps), layers extents etc.
basic aim of base maps is to guide you to the features on ground surface and
also if you are working on multi aquifer model, base maps (dxf etc) will help
you in knowing where your aquifers pinch out or there areal exent so that its
help ful for you in assinging hydraulic parameters.
hope this helps you,
hashmath
sri devi <sri_jrl@...> wrote:
hi,
I am preparing the base map for my project work. Does it accept only satellite
images or shall we prepare the map with all important details? Then which
salient features are to be present in that map? I am in the initial stage of my
project only, and i have to complete within two months. I am expecting the
suggestions from our group as quick as posssible.
bye
sri.
Jakab András <ajakab@...> wrote:
Joseph,
You may only rotate the model domain during model setup, i.e., when you
build your model. You may do it by specifying a base map when you define
your model grid. This step will enable to rotate, align, or resize your grid
over the base map. Rotating the grid may be done using the rotation icon in
the Select Model Region window or specifying a rotation angle. I have never
had problems using this feature. Please let me know if this is not the
answer you were expecting to receive.
András
----- Original Message -----
From: "Joseph Zume"
To:
Sent: Tuesday, January 17, 2006 6:57 AM
Subject: [visual-modflow] Grid orientation
> Hello everyone,
> I am a not-so-experienced modeller and new in the group. I have started
> a modeling exercise with Visual MODFLOW and need help on rotating the
> model domain over my basemap. The instructions in the manual look
> straightforward but when I follow them and rotate the grid my basemap
> rotates also in the final grid layout. Here is what I mean: My aquifer
> trends in a southeasterly direction but groundwater flow is
> southwesterly. When I import the basemap and try to allign the model
> domain with the flow direction, the aquifer appears horizontal (map)
> in the final grid layout. Any suggestions to help me? I will really
> appreciate it.
> Joseph
hi,
I am preparing the base map for my project work. Does it accept only satellite
images or shall we prepare the map with all important details? Then which
salient features are to be present in that map? I am in the initial stage of my
project only, and i have to complete within two months. I am expecting the
suggestions from our group as quick as posssible.
bye
sri.
Jakab András <ajakab@...> wrote:
Joseph,
You may only rotate the model domain during model setup, i.e., when you
build your model. You may do it by specifying a base map when you define
your model grid. This step will enable to rotate, align, or resize your grid
over the base map. Rotating the grid may be done using the rotation icon in
the Select Model Region window or specifying a rotation angle. I have never
had problems using this feature. Please let me know if this is not the
answer you were expecting to receive.
András
----- Original Message -----
From: "Joseph Zume"
To:
Sent: Tuesday, January 17, 2006 6:57 AM
Subject: [visual-modflow] Grid orientation
> Hello everyone,
> I am a not-so-experienced modeller and new in the group. I have started
> a modeling exercise with Visual MODFLOW and need help on rotating the
> model domain over my basemap. The instructions in the manual look
> straightforward but when I follow them and rotate the grid my basemap
> rotates also in the final grid layout. Here is what I mean: My aquifer
> trends in a southeasterly direction but groundwater flow is
> southwesterly. When I import the basemap and try to allign the model
> domain with the flow direction, the aquifer appears horizontal (map)
> in the final grid layout. Any suggestions to help me? I will really
> appreciate it.
> Joseph
Hi, i'm quite new with the software..Now i'm facing problem in input a
concentration data in my model...In transport engine, there is
required for SP1 data which is refer to distribution coefficient of
the species..But i did'nt know the value...For info, i'm doing a
contaminant transport model for BOD,COD,DO ant TSS...can anyone give
me the value range of Kd for my species...
hi,
i am also new to this software, and i am also having the same doubt. so if
anyone give the solution please forward that to me too.
sri.
Jakab András <ajakab@...> wrote:
Hi Joseph,
Yes, this is the way it should happen. Once the grid was created it will
always appear as horizontal rows and vertical columns.
András
----- Original Message -----
From: "Joseph Zume"
To:
Sent: Tuesday, January 17, 2006 2:58 PM
Subject: Re: [visual-modflow] Grid orientation
Andras,
Thanks for your speedy response to my need. As you suggested, I also
import a basemap (bitmap) and georeference it, then I rotate and resize
the model domain as I think appropraite. However, when the final model
region is created, the grid is still vertical, only my map changes
orientation (e.g. from being vertical to horizontal). Is this normal or
I am doing something wrong? Your help is greatly appreciated.
Thanks.
Joseph
Jakab ? wrote:
>Joseph,
>
>You may only rotate the model domain during model setup, i.e., when you
>build your model. You may do it by specifying a base map when you define
>your model grid. This step will enable to rotate, align, or resize your
grid
>over the base map. Rotating the grid may be done using the rotation icon in
>the Select Model Region window or specifying a rotation angle. I have never
>had problems using this feature. Please let me know if this is not the
>answer you were expecting to receive.
>
>András
>
>----- Original Message -----
>From: "Joseph Zume"
>To:
>Sent: Tuesday, January 17, 2006 6:57 AM
>Subject: [visual-modflow] Grid orientation
>
>
>
>
>>Hello everyone,
>>I am a not-so-experienced modeller and new in the group. I have started
>>a modeling exercise with Visual MODFLOW and need help on rotating the
>>model domain over my basemap. The instructions in the manual look
>>straightforward but when I follow them and rotate the grid my basemap
>>rotates also in the final grid layout. Here is what I mean: My aquifer
>>trends in a southeasterly direction but groundwater flow is
>>southwesterly. When I import the basemap and try to allign the model
>>domain with the flow direction, the aquifer appears horizontal (map)
>>in the final grid layout. Any suggestions to help me? I will really
>>appreciate it.
>>Joseph
Hi Joseph,
Yes, this is the way it should happen. Once the grid was created it will
always appear as horizontal rows and vertical columns.
András
----- Original Message -----
From: "Joseph Zume" <jzume@...>
To: <visual-modflow@...>
Sent: Tuesday, January 17, 2006 2:58 PM
Subject: Re: [visual-modflow] Grid orientation
Andras,
Thanks for your speedy response to my need. As you suggested, I also
import a basemap (bitmap) and georeference it, then I rotate and resize
the model domain as I think appropraite. However, when the final model
region is created, the grid is still vertical, only my map changes
orientation (e.g. from being vertical to horizontal). Is this normal or
I am doing something wrong? Your help is greatly appreciated.
Thanks.
Joseph
Jakab ? wrote:
>Joseph,
>
>You may only rotate the model domain during model setup, i.e., when you
>build your model. You may do it by specifying a base map when you define
>your model grid. This step will enable to rotate, align, or resize your
grid
>over the base map. Rotating the grid may be done using the rotation icon in
>the Select Model Region window or specifying a rotation angle. I have never
>had problems using this feature. Please let me know if this is not the
>answer you were expecting to receive.
>
>András
>
>----- Original Message -----
>From: "Joseph Zume" <jzume@...>
>To: <visual-modflow@...>
>Sent: Tuesday, January 17, 2006 6:57 AM
>Subject: [visual-modflow] Grid orientation
>
>
>
>
>>Hello everyone,
>>I am a not-so-experienced modeller and new in the group. I have started
>>a modeling exercise with Visual MODFLOW and need help on rotating the
>>model domain over my basemap. The instructions in the manual look
>>straightforward but when I follow them and rotate the grid my basemap
>>rotates also in the final grid layout. Here is what I mean: My aquifer
>>trends in a southeasterly direction but groundwater flow is
>>southwesterly. When I import the basemap and try to allign the model
>>domain with the flow direction, the aquifer appears horizontal (map)
>>in the final grid layout. Any suggestions to help me? I will really
>>appreciate it.
>>Joseph
Andras,
Thanks for your speedy response to my need. As you suggested, I also
import a basemap (bitmap) and georeference it, then I rotate and resize
the model domain as I think appropraite. However, when the final model
region is created, the grid is still vertical, only my map changes
orientation (e.g. from being vertical to horizontal). Is this normal or
I am doing something wrong? Your help is greatly appreciated.
Thanks.
Joseph
Jakab ? wrote:
>Joseph,
>
>You may only rotate the model domain during model setup, i.e., when you
>build your model. You may do it by specifying a base map when you define
>your model grid. This step will enable to rotate, align, or resize your grid
>over the base map. Rotating the grid may be done using the rotation icon in
>the Select Model Region window or specifying a rotation angle. I have never
>had problems using this feature. Please let me know if this is not the
>answer you were expecting to receive.
>
>András
>
>----- Original Message -----
>From: "Joseph Zume" <jzume@...>
>To: <visual-modflow@...>
>Sent: Tuesday, January 17, 2006 6:57 AM
>Subject: [visual-modflow] Grid orientation
>
>
>
>
>>Hello everyone,
>>I am a not-so-experienced modeller and new in the group. I have started
>>a modeling exercise with Visual MODFLOW and need help on rotating the
>>model domain over my basemap. The instructions in the manual look
>>straightforward but when I follow them and rotate the grid my basemap
>>rotates also in the final grid layout. Here is what I mean: My aquifer
>>trends in a southeasterly direction but groundwater flow is
>>southwesterly. When I import the basemap and try to allign the model
>>domain with the flow direction, the aquifer appears horizontal (map)
>>in the final grid layout. Any suggestions to help me? I will really
>>appreciate it.
>>Joseph
Joseph,
You may only rotate the model domain during model setup, i.e., when you
build your model. You may do it by specifying a base map when you define
your model grid. This step will enable to rotate, align, or resize your grid
over the base map. Rotating the grid may be done using the rotation icon in
the Select Model Region window or specifying a rotation angle. I have never
had problems using this feature. Please let me know if this is not the
answer you were expecting to receive.
András
----- Original Message -----
From: "Joseph Zume" <jzume@...>
To: <visual-modflow@...>
Sent: Tuesday, January 17, 2006 6:57 AM
Subject: [visual-modflow] Grid orientation
> Hello everyone,
> I am a not-so-experienced modeller and new in the group. I have started
> a modeling exercise with Visual MODFLOW and need help on rotating the
> model domain over my basemap. The instructions in the manual look
> straightforward but when I follow them and rotate the grid my basemap
> rotates also in the final grid layout. Here is what I mean: My aquifer
> trends in a southeasterly direction but groundwater flow is
> southwesterly. When I import the basemap and try to allign the model
> domain with the flow direction, the aquifer appears horizontal (map)
> in the final grid layout. Any suggestions to help me? I will really
> appreciate it.
> Joseph
Hello everyone,
I am a not-so-experienced modeller and new in the group. I have started
a modeling exercise with Visual MODFLOW and need help on rotating the
model domain over my basemap. The instructions in the manual look
straightforward but when I follow them and rotate the grid my basemap
rotates also in the final grid layout. Here is what I mean: My aquifer
trends in a southeasterly direction but groundwater flow is
southwesterly. When I import the basemap and try to allign the model
domain with the flow direction, the aquifer appears horizontal (map)
in the final grid layout. Any suggestions to help me? I will really
appreciate it.
Joseph
Hi,
I am about to start a transport model ( I already have the calibrated
flow model) to simulate a nitrate plume in a sand & gravel aquifer. I
have the following questions:
1. Which transport package is best suitable for the modeling MT3D or
RT3D?
2. What is a good dispersion coefficient for nitrate?
3. First order chemical reaction coefficients for nitrogen to nitrate
and for nitrate to nitrogen gas? Values?
4. What is a good immobilization rate (uptake rate for nitrogen into
organic form)Value?
5. Release rate of nitrogen from immobile form through mineralization?
Value?
Thanks for your help
Best regards,
a
I am using visual modflow in combination with RT3Dv2.5 to simulate
transport of PCE, TCE, DC and VC. I am looking for a tool to
automatically calculate the mass of each species in a certain zone or
in a certain layer. Does anyone know of such tool?
I would be very grateful for some input on this!
Regards
Mia
Hello everyone, my name is Stefania.
I am a new user of PMWIN 5.3.I am getting problem to define a head
gradient between to cells. In other words, in the Ground Water Vistas
software the gradient is simply defined by assigning two different
values (head at boundary) in the first and last point of the polyline.
I can also assign a gradient in the zone properties. Can I perform the
same procedure with PMWIN?
Thanks in advance!!
Stefania
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