In answer to the following message :
Message: 1
Date: Mon, 27 Dec 2004 15:26:59 +0200
From: "Mustafa Ergil"
Subject:

Dear all,
I am working on Extreme Value Distribution functions. I have the Gumbel
distribution equation but I am also in need of the equation of so called
Log-Gumbel distribution but I couldn't find it. Does anyone of you have any idea
about this equation. Perhaps it might have an other name in the literature.
Cheers


I have been studying this subject. I I am sending you a file in French with some
formulas, some may help you

I think I remember that Log gumbel is the same as Gumbel, except that you
transform your X into log X before using gumbel formula / Gumbel paper

I hope this can help

Best wishes for 2005






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

Dear All
I am looking for some material on how to (optimally)
estimate scour and safe exit gradients (if any) for
rocks like sandstone and limestone while designing
spillways with either stilling basins or flip buckets
as energy dissipators. I hope u can refer me for some
literature, URLs/ forums etc. from ur experience.

In Pakistan we are mostly using scour and creep/
seepage theories for hydraulic structures design that
are limited to alluvium beds only (?)
Thanks
zafar





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Dear all,
I am working on Extreme Value Distribution functions. I have the Gumbel
distribution equation but I am also in need of the equation of so called
Log-Gumbel distribution but I couldn't find it. Does anyone of you have any idea
about this equation. Perhaps it might have an other name in the literature.
Cheers

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

--- In hydrologymodel@..., "R. Jeffrey Davis"
<jeff@e...> wrote:
> Dear "herodelft"
Thank you for you help.
I could import MODFLOW files generated by PMWIn into GMS 4.0.
However, not all the data were imported properly. The grid
information are Ok, but ther was no top level information for example.
On the other hand, I could not read Modflow file generated by GMS
into PMWIN.
Regarding modification of the code, yes I meant the source code for
some programs such as stochastic modelling and sensitivity analysis.
There are written in Fortran. I am not sure about the compiler. Is it
Lahey Fortran or something else?
does any modification  of the source code affect running of the
application in GMS interface?

>
> Both GMS 4.0 and 5.0 generate MODFLOW 2000 files.
> I'm not certain but PMWIN 5.0 did not support MF2K
> files.  You would need to use the latest version
> which is 7.0.
>
> As for the differences from version 4.0 and 5.0 I
> would refer you to a web page that describes the
> many features of version 5.0:
>
> http://ems-i.com/GMS/gms50new/index.html
>
> Version 5.1 was released about 1.5 months ago.  There
> were only a few minor additions to this version from
> version 5.0.
>
> As to your last question, I'm not sure what you are
> talking about.  GMS is not written in FORTRAN.  Are
> you possibly referring to the MODFLOW code?  If you
> would like to contact me offline, I would be happy to
> answer your question(s) in greater detail.
>
> Warm regards
>
> Jeff
>
> -----Original Message-----
> From: herodelft [mailto:herodelft@y...]
> Sent: Tuesday, December 14, 2004 7:04 AM
> To: hydrologymodel@...
> Subject: [hydrologymodel] Re: PMWIN and GMS
>
>
>
> Thanks to everybody who answered me. What I would like to say that
> all the people have talked about importing Modlflow files, which
have
> been generated in PMWIN, into GMS. However, I need the reverse
> process. In other words, I have a modflow model which was generated
> by GMS v4.0 and want to import it in PMWIN 5.0
> Another thing, is there a big difference between GMS 4.0 and GMS
5.0?
> also is the new version GMS5.1 released?
> If some changes in fortran code of the modules in GMS were changed,
> does that affect running them in GMS interface?
>
>
>
> --- In hydrologymodel@..., "herodelft"
<herodelft@y...>
> wrote:
> >
> > Hi everybody,
> >
> > could anyone tell me if it is possible to transfer the MODFLOW
> model
> > files from GMS interface to PMWIN and the reverse process?
> >
> > Thanks
>
>
>
>
>
> =================================================
> * To subscribe this group, send a blank email to:
> hydrologymodel-subscribe@...
>
> * Post message: hydrologymodel@...
>
> * This list is moderated by C. P. Kumar -
> http://www.angelfire.com/nh/cpkumar/
> =================================================
> * Subscribe other related groups by sending blank
> email to the addresses given below -
>
> Hydrology Forum:
> hydforum-subscribe@yahoogroups.com
>
> Ground Water Modelling:
> gwmodel-subscribe@yahoogroups.com
>
> Roorkee Hydrology Group:
> rhydrology-subscribe@yahoogroups.com
> =================================================
>
>
> Yahoo! Groups Links

Dear Mr. Martin Draeger,
Thanks. I am registered user of Visual Modflow. There
is question about its capability. I will try to
explore the new features in Visual Modflow 4.0.0. I
have one question about the installation of demo
version of software to the system already have fully
functional Visual Modflow 2.8.2. I have not explored
new features as I am fearing that it will coorupt my
old licence.
with regards
ashok
--- Martin Draeger <mdraeger@...> wrote:

> Hello Dr. Kumar,
>
> To clarify the capabilities of Visual MODFLOW, the
> latest version (Version 4.0.0, released in April of
> 2004) is capable of importing any MODFLOW-based
> model.  The import capabilities have been
> significantly enhanced since the release of Version
> 2.8.2 in 1999.  The Version 4.0 User's Manual
> contains a detailed description of how to convert an
> older MODFLOW-88 or MODFLOW-96 model to MODFLOW-2000
> format (using the USGS MF96TO2K program), then
> import the MODFLOW-2000 model directly into Visual
> MODFLOW.
>
> The following excerpt is taken from the "What's new
> in Visual MODFLOW 4.0" section of our website
>
(http://www.waterloohydrogeologic.com/software/visual_modflow_pro/visual_modflow\
_pro_whats_new.htm)
>
> "Although previous versions of Visual MODFLOW were
> able to import existing MODFLOW data sets, the
> import process often ignored important data such as
> Specific Storage and Specific Yield values, and it
> was not able to accommodate quasi 3D models
> containing implicitly represented aquitards. Visual
> MODFLOW 4.0 has a significantly improved importing
> process that supports both MODFLOW-2000 Groundwater
> Process data sets, and older data sets from
> MODFLOW-96 and MODFLOW-88. This process utilizes a
> modified version of the USGS utility (MF962MF2K.EXE)
> to convert MODFLOW-96 and MODFLOW-88 data sets to
> MODFLOW-2000 data sets, and then imports the
> MODFLOW-2000 data set into the Visual MODFLOW
> graphical environment."
>
> If you have any further questions about the import
> capabilities of Visual MODFLOW Version 4.0, please
> feel free to contact Waterloo Hydrogeologic's
> Technical Support department at
> techsupport@....
>
> Thank you.
>
>
> Chris Helmer, B.Sc.
> EIT and Technical Support Coordinator
> Waterloo Hydrogeologic, Inc.
> (519) 746-1798 x225
> www.waterloohydrogeologic.com
>
> -----Original Message-----
> From: Dr. Ashok Kumar [mailto:ashok_bcst@...]
> Sent: Wednesday, December 15, 2004 4:58 AM
> To: hydrologymodel@...
> Subject: RE: [hydrologymodel] PMWIN and GMS
>
>
>
> R. Jeffrey Davis:
> I have tried to open *.bas file. GMS is working
> well.
> There is problem in opening *.nam file. I have
> noticed
> that *.nam file created in PMWIN giving no error.
> There is problem with opening *.bas file crated in
> Visual Modflow. Evapotranspiration, recharge data is
> not coming out. Well locations are coming but its
> discharge value is not coming. I have also noticed
> that Visual Modflow is not creating *.nam file where
> as PMWIN is not creating *.bas file.
> I may say that GMS has great facility for converting
> MODFLOW files created in other software. It
> compatibility with PMWIN is better than Visual
> MODFLOW.
> Ashok
> --- "R. Jeffrey Davis" <jeff@...> wrote:
>
> > Ashok and others
> >
> > Using the File|Open command in GMS 5.1 you can
> open
> > either the *.bas file or the *.nam file.  If you
> > have
> > a set of MODFLOW files that do not open, please
> send
> > them to me (offline).
> >
> > Thanks
> >
> > Jeff
> >
> > -----Original Message-----
> > From: Dr. Ashok Kumar
> [mailto:ashok_bcst@...]
> > Sent: Monday, December 13, 2004 7:21 PM
> > To: hydrologymodel@...
> > Subject: RE: [hydrologymodel] PMWIN and GMS
> >
> >
> > R. Jeffrey Davis:
> > I have explored Visual Modflow2.8.2, GMS5.0 and
> > PMWin5.0. In visual MODFLOW there is provision for
> > importing MODFLOW files (*.bas files). In PMWin
> > there
> > is provision for conversion of MODFLOW88/96
> (*.nam).
> > I
> > have tried to import *.bas file in Visual MODFLOW
> > and
> > found that model data is not correctly coming to
> > model. These options may be available in GMS but I
> > am
> > unable to locate the exact sub-menu. Number of
> > options
> > is available for opening different format files In
> > the
> > FILE menu. But It does not permit opening of *.bas
> > or
> > *.nam files. This option must be in different
> menu.
> > Please help me to locate this option in GMS.
> >
> > The original question raised by Herodelft is
> related
> > to exchange of MODFLOW model files between the GMS
> > and
> > PMWin.
> > ashok
> > --- "R. Jeffrey Davis" <jeff@...> wrote:
> >
> > > Dear "herodelft"
> > >
> > > GMS has always read in and written out standard
> > > MODFLOW files.  If you are trying to read in a
> > > model that was generated outside of GMS, either
> > > read in the *.bas or the *.nam file and GMS will
> > > read in the rest.  There should be a similar
> > method
> > > for reading in GMS-generated files into PMWIN.
> > >
> > > If you are having any trouble, please feel free
> > > to contact the GMS support staff
> (gms@...).
> > > They are always happy to help.
> > >
> > > Jeff
> > >
> > > -----Original Message-----
> > > From: herodelft [mailto:herodelft@...]
> > > Sent: Saturday, December 11, 2004 7:28 AM
> > > To: hydrologymodel@...
> > > Subject: [hydrologymodel] PMWIN and GMS
> > >
> > >
> > >
> > > Hi everybody,
> > >
> > > could anyone tell me if it is possible to
> transfer
> > > the MODFLOW model
> > > files from GMS interface to PMWIN and the
> reverse
> > > process?
> > >
> > > Thanks
> > >
> > >
> > >
> > >
> > >
> > >
> =================================================
> > > * To subscribe this group, send a blank email
> to:
> > > hydrologymodel-subscribe@...
> > >
> > > * Post message: hydrologymodel@...
> > >
> > > * This list is moderated by C. P. Kumar -
> > > http://www.angelfire.com/nh/cpkumar/
> > >
> =================================================
> > > * Subscribe other related groups by sending
> blank
> > > email to the addresses given below -
> > >
> > > Hydrology Forum:
> > > hydforum-subscribe@yahoogroups.com
> > >
> > > Ground Water Modelling:
> > > gwmodel-subscribe@yahoogroups.com
> > >
> > > Roorkee Hydrology Group:
> > > rhydrology-subscribe@yahoogroups.com
> > >
> =================================================
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
>
=== message truncated ===


=====
Dr Ashok Kumar
Scientist, ERD
Remote Sensing Application Centre,
IGSC-Planetarium, Patna - 800 001, India
Tele +91-612-2235264(O)/ 2689001(R)/ +91-94310-14590 (mobile)
http://www.geocities.com/ashok_bcst



__________________________________
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Hello Dr. Kumar,

To clarify the capabilities of Visual MODFLOW, the latest version (Version
4.0.0, released in April of 2004) is capable of importing any MODFLOW-based
model.  The import capabilities have been significantly enhanced since the
release of Version 2.8.2 in 1999.  The Version 4.0 User's Manual contains a
detailed description of how to convert an older MODFLOW-88 or MODFLOW-96 model
to MODFLOW-2000 format (using the USGS MF96TO2K program), then import the
MODFLOW-2000 model directly into Visual MODFLOW.

The following excerpt is taken from the "What's new in Visual MODFLOW 4.0"
section of our website
(http://www.waterloohydrogeologic.com/software/visual_modflow_pro/visual_modflow\
_pro_whats_new.htm)

"Although previous versions of Visual MODFLOW were able to import existing
MODFLOW data sets, the import process often ignored important data such as
Specific Storage and Specific Yield values, and it was not able to accommodate
quasi 3D models containing implicitly represented aquitards. Visual MODFLOW 4.0
has a significantly improved importing process that supports both MODFLOW-2000
Groundwater Process data sets, and older data sets from MODFLOW-96 and
MODFLOW-88. This process utilizes a modified version of the USGS utility
(MF962MF2K.EXE) to convert MODFLOW-96 and MODFLOW-88 data sets to MODFLOW-2000
data sets, and then imports the MODFLOW-2000 data set into the Visual MODFLOW
graphical environment."

If you have any further questions about the import capabilities of Visual
MODFLOW Version 4.0, please feel free to contact Waterloo Hydrogeologic's
Technical Support department at techsupport@....

Thank you.


Chris Helmer, B.Sc.
EIT and Technical Support Coordinator
Waterloo Hydrogeologic, Inc.
(519) 746-1798 x225
www.waterloohydrogeologic.com

-----Original Message-----
From: Dr. Ashok Kumar [mailto:ashok_bcst@...]
Sent: Wednesday, December 15, 2004 4:58 AM
To: hydrologymodel@...
Subject: RE: [hydrologymodel] PMWIN and GMS



R. Jeffrey Davis:
I have tried to open *.bas file. GMS is working well.
There is problem in opening *.nam file. I have noticed
that *.nam file created in PMWIN giving no error.
There is problem with opening *.bas file crated in
Visual Modflow. Evapotranspiration, recharge data is
not coming out. Well locations are coming but its
discharge value is not coming. I have also noticed
that Visual Modflow is not creating *.nam file where
as PMWIN is not creating *.bas file.
I may say that GMS has great facility for converting
MODFLOW files created in other software. It
compatibility with PMWIN is better than Visual
MODFLOW.
Ashok
--- "R. Jeffrey Davis" <jeff@...> wrote:

> Ashok and others
>
> Using the File|Open command in GMS 5.1 you can open
> either the *.bas file or the *.nam file.  If you
> have
> a set of MODFLOW files that do not open, please send
> them to me (offline).
>
> Thanks
>
> Jeff
>
> -----Original Message-----
> From: Dr. Ashok Kumar [mailto:ashok_bcst@...]
> Sent: Monday, December 13, 2004 7:21 PM
> To: hydrologymodel@...
> Subject: RE: [hydrologymodel] PMWIN and GMS
>
>
> R. Jeffrey Davis:
> I have explored Visual Modflow2.8.2, GMS5.0 and
> PMWin5.0. In visual MODFLOW there is provision for
> importing MODFLOW files (*.bas files). In PMWin
> there
> is provision for conversion of MODFLOW88/96 (*.nam).
> I
> have tried to import *.bas file in Visual MODFLOW
> and
> found that model data is not correctly coming to
> model. These options may be available in GMS but I
> am
> unable to locate the exact sub-menu. Number of
> options
> is available for opening different format files In
> the
> FILE menu. But It does not permit opening of *.bas
> or
> *.nam files. This option must be in different menu.
> Please help me to locate this option in GMS.
>
> The original question raised by Herodelft is related
> to exchange of MODFLOW model files between the GMS
> and
> PMWin.
> ashok
> --- "R. Jeffrey Davis" <jeff@...> wrote:
>
> > Dear "herodelft"
> >
> > GMS has always read in and written out standard
> > MODFLOW files.  If you are trying to read in a
> > model that was generated outside of GMS, either
> > read in the *.bas or the *.nam file and GMS will
> > read in the rest.  There should be a similar
> method
> > for reading in GMS-generated files into PMWIN.
> >
> > If you are having any trouble, please feel free
> > to contact the GMS support staff (gms@...).
> > They are always happy to help.
> >
> > Jeff
> >
> > -----Original Message-----
> > From: herodelft [mailto:herodelft@...]
> > Sent: Saturday, December 11, 2004 7:28 AM
> > To: hydrologymodel@...
> > Subject: [hydrologymodel] PMWIN and GMS
> >
> >
> >
> > Hi everybody,
> >
> > could anyone tell me if it is possible to transfer
> > the MODFLOW model
> > files from GMS interface to PMWIN and the reverse
> > process?
> >
> > Thanks
> >
> >
> >
> >
> >
> > =================================================
> > * To subscribe this group, send a blank email to:
> > hydrologymodel-subscribe@...
> >
> > * Post message: hydrologymodel@...
> >
> > * This list is moderated by C. P. Kumar -
> > http://www.angelfire.com/nh/cpkumar/
> > =================================================
> > * Subscribe other related groups by sending blank
> > email to the addresses given below -
> >
> > Hydrology Forum:
> > hydforum-subscribe@yahoogroups.com
> >
> > Ground Water Modelling:
> > gwmodel-subscribe@yahoogroups.com
> >
> > Roorkee Hydrology Group:
> > rhydrology-subscribe@yahoogroups.com
> > =================================================
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
> =====
> Dr Ashok Kumar
> Scientist, ERD
> Remote Sensing Application Centre,
> IGSC-Planetarium, Patna - 800 001, India
> Tele +91-612-2235264(O)/ 2689001(R)/ +91-94310-14590
> (mobile)
> http://www.geocities.com/ashok_bcst
>
>
>
> __________________________________
> Do you Yahoo!?
> Jazz up your holiday email with celebrity designs.
> Learn more.
> http://celebrity.mail.yahoo.com
>
>
> =================================================
> * To subscribe this group, send a blank email to:
> hydrologymodel-subscribe@...
>
> * Post message: hydrologymodel@...
>
> * This list is moderated by C. P. Kumar -
> http://www.angelfire.com/nh/cpkumar/
> =================================================
> * Subscribe other related groups by sending blank
> email to the addresses given below -
>
> Hydrology Forum:
> hydforum-subscribe@yahoogroups.com
>
> Ground Water Modelling:
> gwmodel-subscribe@yahoogroups.com
>
> Roorkee Hydrology Group:
> rhydrology-subscribe@yahoogroups.com
> =================================================
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>


=====
Dr Ashok Kumar
Scientist, ERD
Remote Sensing Application Centre,
IGSC-Planetarium, Patna - 800 001, India
Tele +91-612-2235264(O)/ 2689001(R)/ +91-94310-14590 (mobile)
http://www.geocities.com/ashok_bcst



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=================================================
* To subscribe this group, send a blank email to:
hydrologymodel-subscribe@...

* Post message: hydrologymodel@...

* This list is moderated by C. P. Kumar - http://www.angelfire.com/nh/cpkumar/
=================================================
* Subscribe other related groups by sending blank
email to the addresses given below -

Hydrology Forum:
hydforum-subscribe@yahoogroups.com

Ground Water Modelling:
gwmodel-subscribe@yahoogroups.com

Roorkee Hydrology Group:
rhydrology-subscribe@yahoogroups.com
=================================================


Yahoo! Groups Links

R. Jeffrey Davis:
I have tried to open *.bas file. GMS is working well.
There is problem in opening *.nam file. I have noticed
that *.nam file created in PMWIN giving no error.
There is problem with opening *.bas file crated in
Visual Modflow. Evapotranspiration, recharge data is
not coming out. Well locations are coming but its
discharge value is not coming. I have also noticed
that Visual Modflow is not creating *.nam file where
as PMWIN is not creating *.bas file.
I may say that GMS has great facility for converting
MODFLOW files created in other software. It
compatibility with PMWIN is better than Visual
MODFLOW.
Ashok
--- "R. Jeffrey Davis" <jeff@...> wrote:

> Ashok and others
>
> Using the File|Open command in GMS 5.1 you can open
> either the *.bas file or the *.nam file.  If you
> have
> a set of MODFLOW files that do not open, please send
> them to me (offline).
>
> Thanks
>
> Jeff
>
> -----Original Message-----
> From: Dr. Ashok Kumar [mailto:ashok_bcst@...]
> Sent: Monday, December 13, 2004 7:21 PM
> To: hydrologymodel@...
> Subject: RE: [hydrologymodel] PMWIN and GMS
>
>
> R. Jeffrey Davis:
> I have explored Visual Modflow2.8.2, GMS5.0 and
> PMWin5.0. In visual MODFLOW there is provision for
> importing MODFLOW files (*.bas files). In PMWin
> there
> is provision for conversion of MODFLOW88/96 (*.nam).
> I
> have tried to import *.bas file in Visual MODFLOW
> and
> found that model data is not correctly coming to
> model. These options may be available in GMS but I
> am
> unable to locate the exact sub-menu. Number of
> options
> is available for opening different format files In
> the
> FILE menu. But It does not permit opening of *.bas
> or
> *.nam files. This option must be in different menu.
> Please help me to locate this option in GMS.
>
> The original question raised by Herodelft is related
> to exchange of MODFLOW model files between the GMS
> and
> PMWin.
> ashok
> --- "R. Jeffrey Davis" <jeff@...> wrote:
>
> > Dear "herodelft"
> >
> > GMS has always read in and written out standard
> > MODFLOW files.  If you are trying to read in a
> > model that was generated outside of GMS, either
> > read in the *.bas or the *.nam file and GMS will
> > read in the rest.  There should be a similar
> method
> > for reading in GMS-generated files into PMWIN.
> >
> > If you are having any trouble, please feel free
> > to contact the GMS support staff (gms@...).
> > They are always happy to help.
> >
> > Jeff
> >
> > -----Original Message-----
> > From: herodelft [mailto:herodelft@...]
> > Sent: Saturday, December 11, 2004 7:28 AM
> > To: hydrologymodel@...
> > Subject: [hydrologymodel] PMWIN and GMS
> >
> >
> >
> > Hi everybody,
> >
> > could anyone tell me if it is possible to transfer
> > the MODFLOW model
> > files from GMS interface to PMWIN and the reverse
> > process?
> >
> > Thanks
> >
> >
> >
> >
> >
> > =================================================
> > * To subscribe this group, send a blank email to:
> > hydrologymodel-subscribe@...
> >
> > * Post message: hydrologymodel@...
> >
> > * This list is moderated by C. P. Kumar -
> > http://www.angelfire.com/nh/cpkumar/
> > =================================================
> > * Subscribe other related groups by sending blank
> > email to the addresses given below -
> >
> > Hydrology Forum:
> > hydforum-subscribe@yahoogroups.com
> >
> > Ground Water Modelling:
> > gwmodel-subscribe@yahoogroups.com
> >
> > Roorkee Hydrology Group:
> > rhydrology-subscribe@yahoogroups.com
> > =================================================
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
> =====
> Dr Ashok Kumar
> Scientist, ERD
> Remote Sensing Application Centre,
> IGSC-Planetarium, Patna - 800 001, India
> Tele +91-612-2235264(O)/ 2689001(R)/ +91-94310-14590
> (mobile)
> http://www.geocities.com/ashok_bcst
>
>
>
> __________________________________
> Do you Yahoo!?
> Jazz up your holiday email with celebrity designs.
> Learn more.
> http://celebrity.mail.yahoo.com
>
>
> =================================================
> * To subscribe this group, send a blank email to:
> hydrologymodel-subscribe@...
>
> * Post message: hydrologymodel@...
>
> * This list is moderated by C. P. Kumar -
> http://www.angelfire.com/nh/cpkumar/
> =================================================
> * Subscribe other related groups by sending blank
> email to the addresses given below -
>
> Hydrology Forum:
> hydforum-subscribe@yahoogroups.com
>
> Ground Water Modelling:
> gwmodel-subscribe@yahoogroups.com
>
> Roorkee Hydrology Group:
> rhydrology-subscribe@yahoogroups.com
> =================================================
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>


=====
Dr Ashok Kumar
Scientist, ERD
Remote Sensing Application Centre,
IGSC-Planetarium, Patna - 800 001, India
Tele +91-612-2235264(O)/ 2689001(R)/ +91-94310-14590 (mobile)
http://www.geocities.com/ashok_bcst



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Dear "herodelft"

Both GMS 4.0 and 5.0 generate MODFLOW 2000 files.
I'm not certain but PMWIN 5.0 did not support MF2K
files.  You would need to use the latest version
which is 7.0.

As for the differences from version 4.0 and 5.0 I
would refer you to a web page that describes the
many features of version 5.0:

http://ems-i.com/GMS/gms50new/index.html

Version 5.1 was released about 1.5 months ago.  There
were only a few minor additions to this version from
version 5.0.

As to your last question, I'm not sure what you are
talking about.  GMS is not written in FORTRAN.  Are
you possibly referring to the MODFLOW code?  If you
would like to contact me offline, I would be happy to
answer your question(s) in greater detail.

Warm regards

Jeff

-----Original Message-----
From: herodelft [mailto:herodelft@...]
Sent: Tuesday, December 14, 2004 7:04 AM
To: hydrologymodel@...
Subject: [hydrologymodel] Re: PMWIN and GMS



Thanks to everybody who answered me. What I would like to say that
all the people have talked about importing Modlflow files, which have
been generated in PMWIN, into GMS. However, I need the reverse
process. In other words, I have a modflow model which was generated
by GMS v4.0 and want to import it in PMWIN 5.0
Another thing, is there a big difference between GMS 4.0 and GMS 5.0?
also is the new version GMS5.1 released?
If some changes in fortran code of the modules in GMS were changed,
does that affect running them in GMS interface?



--- In hydrologymodel@..., "herodelft" <herodelft@y...>
wrote:
>
> Hi everybody,
>
> could anyone tell me if it is possible to transfer the MODFLOW
model
> files from GMS interface to PMWIN and the reverse process?
>
> Thanks





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Thanks to everybody who answered me. What I would like to say that
all the people have talked about importing Modlflow files, which have
been generated in PMWIN, into GMS. However, I need the reverse
process. In other words, I have a modflow model which was generated
by GMS v4.0 and want to import it in PMWIN 5.0
Another thing, is there a big difference between GMS 4.0 and GMS 5.0?
also is the new version GMS5.1 released?
If some changes in fortran code of the modules in GMS were changed,
does that affect running them in GMS interface?



--- In hydrologymodel@..., "herodelft" <herodelft@y...>
wrote:
>
> Hi everybody,
>
> could anyone tell me if it is possible to transfer the MODFLOW
model
> files from GMS interface to PMWIN and the reverse process?
>
> Thanks

Ashok and others

Using the File|Open command in GMS 5.1 you can open
either the *.bas file or the *.nam file.  If you have
a set of MODFLOW files that do not open, please send
them to me (offline).

Thanks

Jeff

-----Original Message-----
From: Dr. Ashok Kumar [mailto:ashok_bcst@...]
Sent: Monday, December 13, 2004 7:21 PM
To: hydrologymodel@...
Subject: RE: [hydrologymodel] PMWIN and GMS


R. Jeffrey Davis:
I have explored Visual Modflow2.8.2, GMS5.0 and
PMWin5.0. In visual MODFLOW there is provision for
importing MODFLOW files (*.bas files). In PMWin there
is provision for conversion of MODFLOW88/96 (*.nam). I
have tried to import *.bas file in Visual MODFLOW and
found that model data is not correctly coming to
model. These options may be available in GMS but I am
unable to locate the exact sub-menu. Number of options
is available for opening different format files In the
FILE menu. But It does not permit opening of *.bas or
*.nam files. This option must be in different menu.
Please help me to locate this option in GMS.

The original question raised by Herodelft is related
to exchange of MODFLOW model files between the GMS and
PMWin.
ashok
--- "R. Jeffrey Davis" <jeff@...> wrote:

> Dear "herodelft"
>
> GMS has always read in and written out standard
> MODFLOW files.  If you are trying to read in a
> model that was generated outside of GMS, either
> read in the *.bas or the *.nam file and GMS will
> read in the rest.  There should be a similar method
> for reading in GMS-generated files into PMWIN.
>
> If you are having any trouble, please feel free
> to contact the GMS support staff (gms@...).
> They are always happy to help.
>
> Jeff
>
> -----Original Message-----
> From: herodelft [mailto:herodelft@...]
> Sent: Saturday, December 11, 2004 7:28 AM
> To: hydrologymodel@...
> Subject: [hydrologymodel] PMWIN and GMS
>
>
>
> Hi everybody,
>
> could anyone tell me if it is possible to transfer
> the MODFLOW model
> files from GMS interface to PMWIN and the reverse
> process?
>
> Thanks
>
>
>
>
>
> =================================================
> * To subscribe this group, send a blank email to:
> hydrologymodel-subscribe@...
>
> * Post message: hydrologymodel@...
>
> * This list is moderated by C. P. Kumar -
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>
>
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=====
Dr Ashok Kumar
Scientist, ERD
Remote Sensing Application Centre,
IGSC-Planetarium, Patna - 800 001, India
Tele +91-612-2235264(O)/ 2689001(R)/ +91-94310-14590 (mobile)
http://www.geocities.com/ashok_bcst



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R. Jeffrey Davis:
I have explored Visual Modflow2.8.2, GMS5.0 and
PMWin5.0. In visual MODFLOW there is provision for
importing MODFLOW files (*.bas files). In PMWin there
is provision for conversion of MODFLOW88/96 (*.nam). I
have tried to import *.bas file in Visual MODFLOW and
found that model data is not correctly coming to
model. These options may be available in GMS but I am
unable to locate the exact sub-menu. Number of options
is available for opening different format files In the
FILE menu. But It does not permit opening of *.bas or
*.nam files. This option must be in different menu.
Please help me to locate this option in GMS.

The original question raised by Herodelft is related
to exchange of MODFLOW model files between the GMS and
PMWin.
ashok
--- "R. Jeffrey Davis" <jeff@...> wrote:

> Dear "herodelft"
>
> GMS has always read in and written out standard
> MODFLOW files.  If you are trying to read in a
> model that was generated outside of GMS, either
> read in the *.bas or the *.nam file and GMS will
> read in the rest.  There should be a similar method
> for reading in GMS-generated files into PMWIN.
>
> If you are having any trouble, please feel free
> to contact the GMS support staff (gms@...).
> They are always happy to help.
>
> Jeff
>
> -----Original Message-----
> From: herodelft [mailto:herodelft@...]
> Sent: Saturday, December 11, 2004 7:28 AM
> To: hydrologymodel@...
> Subject: [hydrologymodel] PMWIN and GMS
>
>
>
> Hi everybody,
>
> could anyone tell me if it is possible to transfer
> the MODFLOW model
> files from GMS interface to PMWIN and the reverse
> process?
>
> Thanks
>
>
>
>
>
> =================================================
> * To subscribe this group, send a blank email to:
> hydrologymodel-subscribe@...
>
> * Post message: hydrologymodel@...
>
> * This list is moderated by C. P. Kumar -
> http://www.angelfire.com/nh/cpkumar/
> =================================================
> * Subscribe other related groups by sending blank
> email to the addresses given below -
>
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> hydforum-subscribe@yahoogroups.com
>
> Ground Water Modelling:
> gwmodel-subscribe@yahoogroups.com
>
> Roorkee Hydrology Group:
> rhydrology-subscribe@yahoogroups.com
> =================================================
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>


=====
Dr Ashok Kumar
Scientist, ERD
Remote Sensing Application Centre,
IGSC-Planetarium, Patna - 800 001, India
Tele +91-612-2235264(O)/ 2689001(R)/ +91-94310-14590 (mobile)
http://www.geocities.com/ashok_bcst



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Dear "herodelft"

GMS has always read in and written out standard
MODFLOW files.  If you are trying to read in a
model that was generated outside of GMS, either
read in the *.bas or the *.nam file and GMS will
read in the rest.  There should be a similar method
for reading in GMS-generated files into PMWIN.

If you are having any trouble, please feel free
to contact the GMS support staff (gms@...).
They are always happy to help.

Jeff

-----Original Message-----
From: herodelft [mailto:herodelft@...]
Sent: Saturday, December 11, 2004 7:28 AM
To: hydrologymodel@...
Subject: [hydrologymodel] PMWIN and GMS



Hi everybody,

could anyone tell me if it is possible to transfer the MODFLOW model
files from GMS interface to PMWIN and the reverse process?

Thanks





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Herodelft:
I do not find direct transfer is possible. If this
possible, i am also looking for the answer. I
generally do it but exporting data of GMS into common
input format acceptable to PMWIN and Vice-Versa.
ashok
--- herodelft <herodelft@...> wrote:

>
> Hi everybody,
>
> could anyone tell me if it is possible to transfer
> the MODFLOW model
> files from GMS interface to PMWIN and the reverse
> process?
>
> Thanks
>
>
>
>


=====
Dr Ashok Kumar
Scientist, ERD
Remote Sensing Application Centre,
IGSC-Planetarium, Patna - 800 001, India
Tele +91-612-2235264(O)/ 2689001(R)/ +91-94310-14590 (mobile)
http://www.geocities.com/ashok_bcst



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Hi everybody,

could anyone tell me if it is possible to transfer the MODFLOW model
files from GMS interface to PMWIN and the reverse process?

Thanks

Hi Reet

Q1 :

Upwind discretization always has an artificial diffusion term no mater how
refined your grid is (even thought it diminishes with grid refinement).

Central discretization always produces an artificial dispersion term that causes
"wigles" however you can't control it with grid refinement.

For almost any Pellet number the upwind scheme will produce positive
coefficients for your coefficient matrix, while that isn't true for central
differences.

However central differences has "second order accuracy" while upwind only has
first order.

             You can visualize numerical diffusion and dispersion mathematically
by deriving the "equivalent or modified equation" see
http://widget.ecn.purdue.edu/~jmurthy/me608/main.pdf for some cool notes on this
(as good as any book I've read).

Physically you can visualize numerical diffusion by imagining a 1D
discretization of a domain | : | : | : | where | are faces and : is the center
of the cells.

If your initial property is 1 on a given cell say i and 0 on all others it would
look like this:

| 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0

So using upwind with a courant = v dt / dx of say 0.5 and a velocity from left
to right after the first time step the accurate solution would be something like
(zooming on cell i):

|   0  {  0.5  |  0.5  }  0  |

Note that I have created a new cell delimited by the {} brackets this "new cell"
that doesn't exist in our domain is exactly half of cell i and alf of cell i+1.
The property's value will be 0.5 inside this new cell and 0 outside it (meaning
that cell i and i+1 would have half with 0.5 and half with 0).

This would be the accurate solution because a courant of 0.5 makes the property
shift half a cell every time step. However we are bounded to our initial
discretization so the solution we will obtain will be:

|   0   |  0.5  |  0.5  |  so you can see than instead of having a 0.5 of
property in a volume the size of a cell we have 0.5 in a volume the size of 2
cell thus lowering the concentration. This happened because the definition of
concentration is C = lim vol ->0 DM/DVOL and we implemented it as DM/DVOL.

If we would diminish the size of our grid so that currant = 1 we could obtain
the exact solution. So the smaller your grid is the more accurate your solution
will be.

This is the physically correct way of solving the diffusion problem another way
is to use higher order schemes witch usually maintain the sharpness of the
gradients but usually remove mass from all the wrong places (even thought they
conserve it).

Looking at the same example a central differences discretization would derive
something like:

|  -0.25 |   0.75    |   0.25   |

Cell i-1 will produce a negative property because the concentration al the face
between i-1 and i is 0.5 cell i +1 will obtain the accurate concentration of
0.25 (0.5 in half the volume of a cell). But we are producing the famous
"wigles" close to the properties gradient.

There are smarter second order schemes like qwick or TVD schemes.

Hope this helps, but for now that's all I have time for (sorry). I'll try to
answer your other question later.

Cheers

Pedro B. Galvão

______________________________________________________

Instituto Superior Técnico - MARETEC

Secção de Ambiente e Energia - Departamento de Engenharia Mecânica

Av. Rovisco Pais 1049-001 Lisboa

tel. +351 21 841 9433

fax +351 21 841 9423

e-mail: pgalvao.maretec@...

url: http://www.mohid.com <http://www.mohid.com/>



   _____

From: rhyythmmmm2000 [mailto:rhyythmmmm2000@...]
Sent: quinta-feira, 2 de Dezembro de 2004 19:10
To: hydrologymodel@...
Subject: [hydrologymodel] Querry




I`ve just taken ground water modelling course..so probably my qns
will sound very basic types to you people.

Qn::When we solve for the unknowns(concentrations at different nodes
after a particular time) using upstream spatial weighing with crank
nicholson(theta=0.5) for different sized meshes(coarse, fine, medium)
and by using central spatial weighing with crank nicolson or fully
implicit .

What will be the impact of upstream versus central spatial weighing
on numerical dispersion as the grid size is refined.

Can this be defined numerically by using peclet number and courant
number?

Can anyone please explain it with physical aspect as well as
numerical.

qn2::What will be the impact of crank nichoson temporal weighting
(theta=0.5) and fully implicit temporal weighting(theta =1)on
numerical dispersion as the time step is refined.??????

time step being refined means..courant number c=q*delta(t)/deta(x)
will also become less thus monotonous.

Thanx allot.

Reet





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Hi friends,
I am looking for potential transpiration rate of lime trees
specially under British weather.
Can you give me some idea with references. Similar cases can be
useful as well?
Cheers,
Behzad

Dear Dr.N.Rajmohan

I plan to start using HYdrus2 (there is also Hydrus3) to simulate the
movement of Nitrate from the landsurface through the unsaturated zone
to the groundwater table.

Could you please give me more details about Hydrus2 and how to bulid
a conceptual model? what kind of data needed?

I would highly appreciate your respond.

Thanks
--- In hydrologymodel@..., "Dr.N.Rajmohan"
<nrm_72@y...> wrote:
> Hai
>
> Nice to see your reply.
>
> I did unsaturated zone modelling using HYDRUS 2D to understand the
movement of chloride and nitrogen in the unsaturated zone during my
ph.d programme.
>
> Now I am working as Post doc in South Korea. Presently, I am
working in Groundwater geochemistry.
>
> I am sorry to say that there is no idea about your SWAP model.
Hope, your model may be similar to HYDRUS 2D.
>
> all the best
>
> regards
> Rajmohan
>
> sahil khan <guy8024@y...> wrote:
> Hello mr. Nata Raj,
>
> Thank you you very much for your suggestions. But the thing is i am
not constructing any new model. I am using SWAP model developed
by "Department of Water Management and The Environment
Droevendaalsesteeeg 3, Wageningen PO.Box 47, 6700 AA Wageningen /
Netherlands" and i am planning to validate that model ty my study
area. My study area is in western ghats area in India. If you have
any idea about SWAP please try to pass me some information.
>
> Thank you once again for your kind reply,
>
> Yours,
> Sunil Gurrapu
>
> Yahoo! India Matrimony: Find your life partneronline.
>
> [Non-text portions of this message have been removed]
>
>
>
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Hello
you can use the field interpolator program in the PMWIN package.
Using the field interpolator you can interpoltae the field data in
txt file to the grid point of your model. On the other hand, you can
import any dxf file which illustrate the changes in hydraulic
properties to help you in the graphical interface.

--- In hydrologymodel@..., syed hashmath
<hashmath01@y...> wrote:
> Hi all,
>
> I have just started using PMWIN 5.3.0 and working on a project.
>
> I want to know how do I import and geo-reference the map? and how
do I import top and bottom of layers? hydraulic properties? etc from
files such as .txt or .grd
>
> input is highly appreciated.
>
> regards,
> hash
>
>
> ---------------------------------
> Do you Yahoo!?
>  Yahoo! Mail - You care about security. So do we.
>
> [Non-text portions of this message have been removed]

In one of the contaminant transposrt problems..I calculated the
unknown
concentrations by solving the matrix equations using matlab".I did a
material
balance on the solution by back calculating for the full
concentration of flow.

How can I figure it out that the solution is pointwise as well as
step wise
stable. What is meant by point wise stability?

thanx.

Regards.

Reet

I`ve just taken ground water modelling course..so probably my qns
will sound very basic types to you people.

Qn::When we solve for the unknowns(concentrations at different nodes
after a particular time) using upstream spatial weighing with crank
nicholson(theta=0.5) for different sized meshes(coarse, fine, medium)
and by using central spatial weighing with crank nicolson or fully
implicit .

What will be the impact of upstream versus central spatial weighing
on numerical dispersion as the grid size is refined.

Can this be defined numerically by using peclet number and courant
number?

Can anyone please explain it with physical aspect as well as
numerical.

qn2::What will be the impact of crank nichoson temporal weighting
(theta=0.5) and fully implicit temporal weighting(theta =1)on
numerical dispersion as the time step is refined.??????

time step being refined means..courant number c=q*delta(t)/deta(x)
will also become less thus monotonous.

Thanx allot.

Reet

Hash, I saw your question about importing top and bottom layers for your
groundwater model.  Although I'm not highly familiar with PMWin's GUI, I thought
you may be interested to know about a new program that hit the market a few
months ago called HydroGeo Analyst.  It's a great system for developing ALL your
model input data and acts as a "conceptual model builder" for any groundwater
modeling package.  Since you are currently dealing with model input issues, you
may wish to streamline the process with HydroGeo Analyst.

Here are some features that would be of interest to you.  You can...

- Analyze & Develop Your Conceptual Model of the Groundwater System
- Manage & Maintain Consistency of Model Input Data for Each Project (Units,
Projections, etc.)
- Produce Basemaps for use in any groundwater model (Raster, CAD, ESRITM Shape)
- Query & Review Analytical Lab Data or Hydrogeologic Data (QA/QC)
- Interpret & Create Model Layers Directly From Your Borehole Data - A MAJOR
TIME SAVER!
- Digitize Model Properties for use in any groundwater model (Streams, Recharge
Zones, Initial Concentrations, Head Elevations, etc.)
- Visualize Model Results in HydroGeo Analyst's GIS Map Manager (Concentration
Contours, etc.)

There is a small article about HydroGeo Analyst and groundwater model input at
http://www.waterloohydrogeologic.com/software_news/vmod/vmod_hga_news.htm . 
Note: This discusses HydroGeo Analyst as it pertains to Visual MODFLOW however
it should give you an overall impression on how to create and import your data
to your PMWin model.

For technical details or to download a free demo of HydroGeo Analyst, visit
http://www.waterloohydrogeologic.com/software/Hydrogeo_Analyst/Hydrogeo_analyst_\
ov.htm

Again, though I'm not familiar with PMWin, I hope this information will help you
with creating and importing your data.

Sincerely,

Martin Draeger
____________________________________________
Martin Draeger, B.E.S.
Waterloo Hydrogeologic, Inc.
Tel: 519-746-1798, Ext. 246
www.waterloohydrogeologic.com



GROUNDWATER IS OUR BUSINESS!



-----Original Message-----
From: syed hashmath [mailto:hashmath01@...]
Sent: Thursday, December 02, 2004 2:28 AM
To: gwmodel@yahoogroups.com
Cc: hydrologymodel@...
Subject: [gwmodel] PMWIN



Hi all,

I have just started using PMWIN 5.3.0 and working on a project.

I want to know how do I import and geo-reference the map? and how do I import
top and bottom of layers? hydraulic properties? etc from files such as .txt or
.grd

input is highly appreciated.

regards,
hash


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  Yahoo! Mail - You care about security. So do we.

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

Hi all,

I have just started using PMWIN 5.3.0 and working on a project.

I want to know how do I import and geo-reference the map? and how do I import
top and bottom of layers? hydraulic properties? etc from files such as .txt or
.grd

input is highly appreciated.

regards,
hash


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

Hi,

I don't know how you have installed the AVSWAT model.
From my understanding of the AVSWAT model to install
you need to open the ArcView first and open the
setup.apr project it will automatically install AVSWAT
to the ArcView. In order to work with AVSWAT you need
to open the ArcView and click on the File Menu and
then on the Extension. It will open the extension
dialog box where you will see lot of other extensions
available. Check the box beside the AVSWAT and click
ok it will load the AVSWAT interface and you should be
able to run it. One more important thing is in order
to run the AVSWAT you must have Spatial Analyst (and I
think 3D Analyst) extension installed.
Hope you should be able to run the AVSWAT.

Cheers,

Harshal

=====
Harshal M Galgale



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Hi, as I know you have to follow the given installation instructions of
AVSWAT interface.
Then you launch ArcView with an emty project. In the files-menu you
chose 'extensions' and activate the AVSWAT Extension. You also need the
Spatial-Analyst Extension.

kai
--
--------------------------------------------------------

Dipl.-Ing. Kai Schröter


TECHNISCHE UNIVERSITÄT DARMSTADT
Institut für Wasserbau und Wasserwirtschaft
Fachgebiet Ingenieurhydrologie und Wasserbewirtschaftung
Petersenstr. 13
64287 Darmstadt

Telefon : +49 / (0)6151 / 16 - 2443
Fax : +49 / (0)6151 / 16 - 3243
email: schroeter@...

Greetings,

I am looking for a method to estimate annual sediment loads in a number of very
flashy streams, in order to find out whether or not conservation practices have
been effective in reducing TSS and meeting the TMDL targets. I have a data set
where flow and TSS were measured on a bi-weekly basis, at established sites, for
one year. I realize that event based sampling would have enabled me to have a
better idea of the loadings during high flows, but I'm stuck dealing with the
data I was given. Any suggestions?

Thanks in advance for your insights.

Ken P. Clark
IASCD - Water Quality Analyst
220 E. 5th, Room 212-A
Moscow, ID 83843
(208) 892-1404
Fax: (208) 883-4239

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

Hi
to my knowledge Av SWAT cant work as it is on the arcview. You have to download
the basins. it acts lika a interface to the swat and arcview.
hopefully it will help to you may be not.


Áõ´óÇì <dqliu@...> wrote:
hi all,
i have downloaded avSwat model and installed it ,but i can not introduce it
to arcview,how can i do? thanks a lot!
loadarting

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



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

hi friends
     i am doing my thesis in flow duration curves generation and
regionalization. it will be very nmuch helpfull to me if i get the
methodology for  regionalization for ungauged basins.
thanks in advance

hi all,
i have downloaded avSwat model and installed it ,but i can not introduce it
to arcview,how can i do? thanks a lot!
loadarting

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

This should be normally the process with MODFLOW.
Success,

R. Vazquez
--
Raul Vazquez Z, Ph.D. MSc. Eng.
On leave from: Katholieke Universiteit Leuven
Department of Civil Engineering - Hydraulics Laboratory
Kasteelpark Arenberg 40
B-3001 Leuven (Belgium)
URL: http://www.kuleuven.ac.be/hydr/Index.html


Quoting Olayinka Oladeji <olayinka_oladeji@...>:

>
> Dear Phemsi,
> I think if you have 2 separate simulations,then their input files
> will
> have to be read distinctly. For you to have the output of one
> simulation
> to be the initial conditions (which I suppose it to be nodal water
> head
> or concentration values), of the second simulation, then I think you
> have
> to manually format the output of the first simulation so that it can
> be
> read by the second simulation as initial conditions.
>
> Olayinka Oladeji
>
>  --- phemsi <pshemsi@...> wrote:
>
> ---------------------------------
>
> Thank you very much Olayinka,
> I guess I should use 2 separate simulations... I would like to set
> up
> the second simulation so that the end results of simulation 1 are
> initial conditions for simulation 2...Have you tried that before?
> Thanks and have a great day.
> Paulo
>
>
> --- In hydrologymodel@..., Olayinka Oladeji
> <olayinka_oladeji@y...> wrote:
> > Phemsi,
> >
> > I think your scenario will represent two different geologic
> materials with peculiar intrinsic properties. Hence, I suppose this
> will require two separate simulations. To the best of my knowledge,
> MODFLOW 2000 only allow one K matrix values per layer per simulation
> and this is incorporated within the flow package.
> >
> > However, if the introduction of the permeable barrier is
> controlled
> along defined specific paths or unique relatively smaller area(s),
> then you can use one simulation with two stress periods and
> incorporate Horizontal Flow Barrier Package in the second period to
> account for the permeable barrier distribution. This is not suppose
> to
> be of much problem especially if you incorporate your modflow with
> GIS
> package like GRASS GIS.
> >
> > Olayinka Oladeji.
> >
> > phemsi <pshemsi@e...> wrote:
> >
> > Hello.
> > I have been trying to create a MODFLOW-2000 (not Visual)simulation
> > containing 2 stress periods, each period with a different input map
> of
> > hydraulic conductivities. This scenario represents, for example,
> the
> > original aquifer (1st period) and the aquifer after the
> introduction
> > of a permeable barrier (2nd period).
> > However, I could not find the way to define the matrix of K
> (hydraulic
> > conductivity) per stress period. It seems that the matrix of K is
> > defined once for the entire simulation??
> > Thank you for any ideas from users.
> > Paulo
> >
> >
> >
> >
> >
> > =================================================
> > * To subscribe this group, send a blank email to:
> > hydrologymodel-subscribe@...
> >
> > * Post message: hydrologymodel@...
> >
> > * This list is moderated by C. P. Kumar -
> http://www.angelfire.com/nh/cpkumar/

Dear Phemsi,
I think if you have 2 separate simulations,then their input files will
have to be read distinctly. For you to have the output of one simulation
to be the initial conditions (which I suppose it to be nodal water head
or concentration values), of the second simulation, then I think you have
to manually format the output of the first simulation so that it can be
read by the second simulation as initial conditions.

Olayinka Oladeji

  --- phemsi <pshemsi@...> wrote:

---------------------------------

Thank you very much Olayinka,
I guess I should use 2 separate simulations... I would like to set up
the second simulation so that the end results of simulation 1 are
initial conditions for simulation 2...Have you tried that before?
Thanks and have a great day.
Paulo


--- In hydrologymodel@..., Olayinka Oladeji
<olayinka_oladeji@y...> wrote:
> Phemsi,
>
> I think your scenario will represent two different geologic
materials with peculiar intrinsic properties. Hence, I suppose this
will require two separate simulations. To the best of my knowledge,
MODFLOW 2000 only allow one K matrix values per layer per simulation
and this is incorporated within the flow package.
>
> However, if the introduction of the permeable barrier is controlled
along defined specific paths or unique relatively smaller area(s),
then you can use one simulation with two stress periods and
incorporate Horizontal Flow Barrier Package in the second period to
account for the permeable barrier distribution. This is not suppose to
be of much problem especially if you incorporate your modflow with GIS
package like GRASS GIS.
>
> Olayinka Oladeji.
>
> phemsi <pshemsi@e...> wrote:
>
> Hello.
> I have been trying to create a MODFLOW-2000 (not Visual)simulation
> containing 2 stress periods, each period with a different input map of
> hydraulic conductivities. This scenario represents, for example, the
> original aquifer (1st period) and the aquifer after the introduction
> of a permeable barrier (2nd period).
> However, I could not find the way to define the matrix of K (hydraulic
> conductivity) per stress period. It seems that the matrix of K is
> defined once for the entire simulation??
> Thank you for any ideas from users.
> Paulo
>
>
>
>
>
> =================================================
> * To subscribe this group, send a blank email to:
> hydrologymodel-subscribe@...
>
> * Post message: hydrologymodel@...
>
> * This list is moderated by C. P. Kumar -
http://www.angelfire.com/nh/cpkumar/
> =================================================
> * Subscribe other related groups by sending blank
> email to the addresses given below -
>
> Hydrology Forum:
> hydforum-subscribe@yahoogroups.com
>
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> gwmodel-subscribe@yahoogroups.com
>
> Roorkee Hydrology Group:
> rhydrology-subscribe@yahoogroups.com
> =================================================
>
>
>
>
>
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>
>
>
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