Hi,

Does anyone know where I can find some literature values for the diffusion
coefficient for saline water in an aquifer? I have searched and found very
little, only conflicting information. The tutorial tells you to use 10^-10 m2/d,
but the manual (older version) which discusses Henry's problem says that they
used 1.62925 m2/d. They are obviously many orders of magnitude different, which
is worrying!

Also, is it possible to change the diffusion coefficient once you have set up a
transport variant in SEAWAT? The option is there under the species parameters
when you first apply the values, but if you return later the option is no longer
on the list. Do I have to add a new species from scratch or is there a quick
way?

Thanks,

Matt

S.S. Papadopolous and Associates, Inc. is very excited to announce that Dr.
James Craig, University of Waterloo, will teach a 2-day short course
entitled "Groundwater Model Development with the Analytic Element Method" in
Bethesda, Maryland, August 6-7th.

James Craig is the author of the (free!) analytic element modeling software
Visual AEM (the successor to Visual Bluebird), a graphical user interface
for single and multi-layer analytic element modeling of (mostly)
steady-state groundwater flow and numerical/analytical modeling of
vertically-averaged contaminant transport. Visual AEM also incorporates
TimML, a multi-layer AEM code developed by Dr. Mark Bakker. For more
information on Visual AEM visit:

http://www.civil.uwaterloo.ca/jrcraig/VisualAEM/Main.html

The AEM course is geared to those interested in learning how to properly use
the analytic element method for developing groundwater models at the local
and regional scale. Further information about the course is available at:

http://www.sspa.com/Software/AEM
<http://www.sspa.com/Software/AEM%20August%202009%20training.shtml>  August
2009 training.shtml

Note that attendance is limited and early-bird registration rates apply only
through July 4th, so get your registrations in early!

If you have any questions about the technical content of the course, please
contact James Craig (jrcraig@...)

If you have any questions about the logistical aspects of the course, please
contact me (matt@...)

Kind Regards,

Matt Tonkin
S.S. Papadopulos & Assoc., Inc.
Bethesda, MD, 20814
email:  <blocked::mailto:matt@...> matt@...

(Apologies for double-posting)

The DOW is up (or was it down today?), and the economic outlook is rosy (or
is it gloomy today?). It is so confusing. But, one thing is certain - the
early-bird registration and abstract submittal date for the inaugural PEST
Conference is fast approaching..!

The first-ever PEST Conference will be held in The Stained Glass Hall of the
Bolger Center, Potomac, Maryland ( <http://bolgercenter.dolce.com/>
http://bolgercenter.dolce.com/) November 2nd through 4th, 2009. The goal is
to bring together modelers from a variety of disciplines to discuss inverse
modeling - i.e., parameter estimation and uncertainty analysis - with a
focus on the PEST suite of programs, and seek input from modelers on inverse
modeling needs to guide future code development. The conference will
commence with a message from John Doherty, the developer of PEST, and will
follow with morning and afternoon sessions, each commencing with a key-note
address given by a noted modeler. A poster session will be held one evening.
Oral and poster submissions will be summarized in extended abstracts and/or
full papers, published in electronic proceedings distributed on thumb
drives. The conference will wrap-up with a question-and-answer session
during which attendees will be able to ask questions and provide suggestions
for future development directions. Keynote speakers include John Doherty
(developer of PEST), Ghislain DeMarsily (developer of the Pilot Point
technique), Jim Rumbaugh (ESI, developer of Groundwater Vistas), Jasper
Vrugt (Los Alamos National Laboratory), and Randy Hunt (US Geological
Survey). A one-day "Introductory PEST Course" will be held immediately prior
to the conference, and a two-day "Advanced PEST Course" will be held
immediately following the PEST Conference.

Conference details including information on abstract submissions, early-bird
discounted registration, accommodations, and the pre- and post-conference
courses can be found at:

<http://www.sspa.com/ThePESTConference> www.sspa.com/ThePESTConference

Best wishes -

Matt Tonkin, SSP&A
Email:  <mailto:pest@...> pest@...

Following repeated requests from the Obama Administration to stimulate the
environmental business sector, and demands from the G20 Summit that we save
the world from imminent economic collapse, the PEST Conference organizing
committee (John Doherty, Jim Rumbaugh, and myself) has agreed to extent the
early-bird registration and abstract submittal period through May 1st!

The first-ever PEST Conference will be held in The Stained Glass Hall of the
Bolger Center, Potomac, Maryland ( <http://bolgercenter.dolce.com/>
http://bolgercenter.dolce.com/) November 2nd through 4th, 2009. The goal is
to bring together modelers from a variety of disciplines to discuss inverse
modeling - i.e., parameter estimation and uncertainty analysis - with a
focus on the PEST suite of programs, and seek input from modelers on inverse
modeling needs to guide future code development. The conference will
commence with a message from John Doherty, the developer of PEST, and will
follow with morning and afternoon sessions, each commencing with a key-note
address given by a noted modeler. A poster session will be held one evening.
Oral and poster submissions will be summarized in extended abstracts and/or
full papers, published in electronic proceedings distributed on thumb
drives. The conference will wrap-up with a question-and-answer session
during which attendees will be able to ask questions and provide suggestions
for future development directions. Keynote speakers include John Doherty
(developer of PEST), Ghislain DeMarsily (developer of the Pilot Point
technique), Jim Rumbaugh (ESI, developer of Groundwater Vistas), Jasper
Vrugt (Los Alamos National Laboratory), and Randy Hunt (US Geological
Survey). A one-day "Introductory PEST Course" will be held immediately prior
to the conference, and a two-day "Advanced PEST Course" will be held
immediately following the PEST Conference.

Conference details including information on abstract submissions, early-bird
discounted registration, accommodations, and the pre- and post-conference
courses can be found at:

<http://www.sspa.com/ThePESTConference> www.sspa.com/ThePESTConference

Best wishes -

Matt Tonkin, SSP&A
Email:  <mailto:pest@...> pest@...

(Apologies for double-postings)

PEST Courses and Conference 2009

Registration is open for the inaugural "DOUBLE-HEADER" SPRING PEST COURSE,
San Francisco, May 2009, comprising a two-day "Introduction to PEST" course
and a subsequent two-day "Advanced Analysis using PEST" course. The
introductory course is suitable to modelers with little to no experience
with inverse methods. This course will comprise about 50:50 lectures and
hands-on-exercises, with the aim of providing theoretical background on
least-squares inverse methods, and practical experience in their
implementation. In the advanced course the emphasis turns to highly
parameterized inversion in calibration of ground and surface water models,
and in exploration of the uncertainty associated with model parameters and
predictions. Topics covered in detail include the use of pilot points as a
parameterization device; advanced regularization techniques; the
"SVD-assist" technique for efficient inversion of highly parameterized
models; linear and nonlinear uncertainty analysis including the highly
expedient Null-Space Monte Carlo method that is unique to PEST. This course
will comprise about 80:20 lectures and hands-on exercises, with ample room
for discussion. Participants at either course will receive a CD containing
12 exercises to take away and study. Attendees can register for the
"Introductory" course, or the "Advanced" course, or both courses with a
discount on the individual course prices. Further information, including a
detailed course outline and registration details, is available at
http://www.sspa.com/Pest/training.shtml

Registration is open for THE INAUGURAL PEST CONFERENCE, to be held in The
Stained Glass Hall of the Bolger Center, Maryland, USA (
http://bolgercenter.dolce.com/ <http://bolgercenter.dolce.com/> ) November
2nd through 4th, 2009. The objective of bringing together modelers from a
variety of disciplines is to exchange ideas, discuss applications of the
PEST suite of programs, share lessons learned, discuss new and planned
developments, and seek input from modelers on inverse modeling needs to
guide future code development with a focus on PEST (www.sspa.com/pest). The
Conference will commence with a message from John Doherty, the developer of
PEST. This will be followed by morning and afternoon sessions, commencing
with a key-note address by a noted modeler, followed by submitted
presentations and a poster session. Submissions will be summarized in
extended abstracts and/or full papers published in electronic proceedings.
The conference will wrap with a question-and-answer session. Keynote
speakers include John Doherty (developer of PEST), Ghislain DeMarsily
(developer of the Pilot Point technique), Jim Rumbaugh (ESI, developer of
Groundwater Vistas), Jasper Vrugt (Los Alamos National Laboratory) and Randy
Hunt (US Geological Survey). A one-day "Introductory PEST Course" will be
held immediately prior to the conference, and a two-day "Advanced PEST
Course" will be held immediately following the PEST Conference, with
instruction from John Doherty, Jim Rumbaugh, and Matt Tonkin. Details
including information on abstract submissions, early-bird discounted
registration, accommodations, and the pre- and post-conference courses can
be found at www.sspa.com/ThePESTConference.


Regards,
Matt Tonkin
S.S. Papadopulos & Assoc., Inc.
email:  <blocked::mailto:matt@...> matt@...

On behalf of John Doherty, Jim Rumbaugh, and myself, please consider joining
us at the first-ever PEST conference! This will be held in The Stained Glass
Hall of the Bolger Center, Potomac, Maryland (
<http://bolgercenter.dolce.com/>  http://bolgercenter.dolce.com/) November
2nd through 4th, 2009. The goal is to bring together modelers from a variety
of disciplines to discuss the use of inverse modeling techniques - i.e.,
parameter estimation and uncertainty analysis - with a focus on the PEST
suite of programs, and seek input from modelers on inverse modeling needs to
guide future code development. The conference will commence with a message
from John Doherty, the developer of PEST, and will follow with morning and
afternoon sessions, each commencing with a key-note address given by a noted
environmental modeler. A poster session will be held one evening. Oral and
poster submissions will be summarized in extended abstracts and/or full
papers, published in electronic proceedings distributed on thumb drives. The
conference will wrap-up with a question-and-answer session during which
attendees will be able to ask questions and provide suggestions for future
development directions. Keynote speakers include John Doherty (developer of
PEST), Ghislain DeMarsily (developer of the Pilot Point technique), Jim
Rumbaugh (ESI, developer of Groundwater Vistas), Jasper Vrugt (Los Alamos
National Laboratory), and Randy Hunt (US Geological Survey). A one-day
"Introductory PEST Course" will be held immediately prior to the conference,
and a two-day "Advanced PEST Course" will be held immediately following the
PEST Conference.

Conference details including information on abstract submissions, early-bird
discounted registration, accommodations, and the pre- and post-conference
courses can be found at:

www.sspa.com/ThePESTConference

Best wishes -

Matt Tonkin, SSP&A
Email:  <mailto:pest@...> pest@...

Hi,

I downloaded SEAWAT to evaluate. I am looking for a groundwater model that
integrates
solute transport in ground water. I know I can use the MT3DMS model along with
MODFLOW,
but if SEAWAT already integrates those two then is it safe to assume that SEAWAT
is
appropriate for solute transport in river systems. I simply want to obtain info
about river flow
and solute concentration in the river at a given location.

--------------------------------------------------------------------------------\
------------------------------------------------------
APOLOGIZE FOR CROSS POSTING
----------------------------------------------------------------------
CALL FOR PAPERS
Journal of Flood Engineering (JFE)
Editor-in-chief: A/Prof. Dr. Saeid Eslamian, IUT, TMU, Australian
University of New South Wales (Ph.D. Adviser: Emeritus Prof. David H.
Pilgrim), Former V. Prof. of Princeton University, United States,
Research Partner of ETH Zurich and EPFL, Switzerland.
Jflood.eng@..., eslamian@...
-------------------------------------------------------------------------
Associate Editors:
Kazimierz Adamowski, Adjunct Professor, University of Ottawa, Canada.
Benigno E. Aguirre, Professor, University of Delaware, USA.
Jean E. Berlamont, Professor, University of Leuven, Belgium.
Mitja Brilly, Professor, University of Ljubljana, Slovenia.
Colin Green, Professor, Middlesex university, UK.
Khaled H. Hamed, Associate Professor, Cairo University, Egypt.
Anisul Haque, Professor, Bangladesh University of Engineering and
Technology, Bangladesh.
Peter Kinnell, Associate Professor, University of Canberra, Australia.
Donald W. Knight, Emeritus Professor, University of Birmingham, UK.
Mark G. Macklin, Professor , Aberystwyth University, UK.
Maria A. Mimikou, Professor, National Technical University of Athens,
Greece
Charles Pearson, Regional Manager, National Institute of Water and
Atmospheric Research, NZ.
Artur Radecki-Pawlik, Professor,Agricultural University of Krakow, Poland.
Witold G. Strupczewski, Professor, Polish Academy of Sciences, Poland.
Bruce William Webb, Professor,University of Exeter,UK.
Alan Werritty, Professor, University of Dundee, UK.
--------------------------------------------------------------------------------\
--------------------
The  Journal of Flood Engineering (JFE) is the peer reviewed technical
publication of research and novel practical studies  on flood and
related topics. The Journal accepts papers dealing with all aspects of
flood engineering and applied sciences, streamflow quantity, quality
and ecology modelling and statistics, river management and both social
and health aspects of flooding. Contact JFE, if you want to submit a
paper at Jflood.eng@..., if you would like to serve as a
potential reviewer at Eslamian@... with including your CV.  If
you know of others that may have a paper that can be published, please
forward this information to her or him or invite them to visit our JFE
web site at
http://www.serialspublications.com/journals1.asp?jid=324&jtype=1

The Journal will be published 2 issues each year by Serials
Publications www.serialspublications.com. Serials Publications was
came into limelight in 1981 with the objective of fetching legendary
international publishers, vendor and global subscription agents of
books and academic journals. The books and journals released by
Serials Publications always keep pace with the international standards
of quality, with authors and editorial members across the globe. It
propagates the laissez-faire objectives of the University Institutes
to further education and learning through publications that replicate
the explicit needs of the country that it doles out.

Examples of areas covered by the journal include, but are not
restricted to

-Hydrology of Extreme Floods
-Coastal Surge Flooding
-Climate Change
-Flood Hazard Management
-Flood Forecasting and Infiltration Modeling
-Flood Warning Techniques
-Disaster Recovery
-Human and Flood
-Land Use Management
-GIS and Flood Zoning
-Policy and Legislation
-Environment and Flood
-Snowmelt Flooding
-Rainwater Harvesting
-Health and Social Aspects of Flooding
-Economical Analysis
-Regionalization
-Geostatistics
-Flood Frequency Analysis
-Rainfall Runoff Modeling
-Flood Insurance
-Arctic Flood
-Urban Flood
-Flood Risk Analysis
-Flood Uncertainty
-Habitat Aspects of Flooding
-Sedimentation and Water Erosion
-Data Mining and Remote Sensing
-PMP and PMF Estimation
-Flood Control Structures
-Flood Case Studies
-River Engineering
-Floodplain Management
-Reservoir Optimization
-Flood Damages
-Flood Spreading
-Paleoflood
-Flood Indices
  ----------------------------------
Dr. S. Saeid Eslamian,  IUT, TMU, Australian University of New South Wales
Associate Professor of Hydrology and Risk Analysis
IUT Head of Water Department
Former V. Prof. of Princeton University
Research Partner of ETH Zurich and EPFL Switzerland
Editor-in-Chief, Journal of Flood Engineering (JFE)
Editor, Bulletin of Statistics and Economics (BEE)
Guest Editor-in-Chief, International Journal of Water (IJW)
Guest Editor-in-Chief, International Journal of Global Energy Issues
(IJGEI)
Regional Editor, Australian Journal of Basic and Applied Sciences (AJBAS)
Regional Editor, Journal of Applied Sciences (ISI Index)
Regional Editor, Research Journal of Environmental Sciences  (ISI Index)
Regional Editor, Journal of Fisheries and Aquatic Sciences  (ISI Index)
Associate Editor, International Journal of Ecological Economic and
Statistics (IJEES)
GCC Network for Drylands Research and Development (NDRD)
Project Mentor, United States Civilian Research and Development
Foundation (USCRDF)
Jflood.eng@..., Prof.Eslamian@..., Eslamian@...
--------------------------------------------------------------------------------\
----------------------------------------

Dear Group Member,

With reference to my earlier queries (did not get any response at that time), a
recent response from Mr. Alessandro Casasso is placed below.

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/
==================================================

******************************************************************

Re: Modelling of seawater intrusion
Monday, September 22, 2008 3:52 PM
From: "alessandro.casasso" <alessandro.casasso@...>
To: "C. P. Kumar" <cpkumar@...>

Have you found any answer to you questions? I'm working at a MS thesis about
Feflow modelling of a shallow aquifer in Venice. I will not try to model salt
pans - too difficult even to think where they are.

About rainfall and evapotranspiration: I've got rainfall and temperature data. I
calculated ET with Blaney-Criddle formula, but I found that results are
overestimated. I tried to reduce risults by comparing modeling results with real
results (in the area I'm studying, I can get results from 11 piezometers..) and
I found that BC formula results can be divided by 3. I found that ET estimation
is one of the most difficult parts of shallow aquifers modeling...

I've got no idea about brackish water in rivers. In my model, I assigned the
tidal oscillations (1st type boundary conditions) also to a channel of Venice
lagoon that encloses my modeling domain.

I developed a relation between TDS and conductivity (I've got specifical
conductivity measures), but I did a very rude approximation. As I'm modeling a
peninsula, I thought that seawater contains most NaCl , so conductivity
(microSiemens per cm) is dominated by NaCl concentration. Conductivity is linked
to NaCl concentration in this way: - every ion has an equivalent conductivity,
that is the specifical conductivity for a concentration of 1 equivalent/liter
(for NaCl, 1 equivalent = 1 mole); - this equivalent conductivity is also linked
to concentration by Onsager formula; - specifical conductivity = equiv conduct x
concentration [mole/liter]

I visited your site some time ago, I found it very interesting. Sorry for my
English, I have to improve it. About my tip on TDS-conductivity: as we say in
Italy "here I tell it, and here I deny it" :-) I'm only a MS student and I got
these advice reading a laboratory chemistry manual...

See you soon on this forum,
Alessandro Casasso

******************************************************************

Date: Sun, 20 May 2007 20:03:41 -0700 (PDT)
From: "C. P. Kumar" <cpkumar@...>
Subject: Modelling of seawater intrusion
To: hydforum@yahoogroups.com, hydrologymodel@...,
gwmodel@yahoogroups.com, gwrm@..., rhydrology@yahoogroups.com,
feflow@..., seawat@..., coastal@googlegroups.com

Dear Group Member,

I am grateful to the following members/experts for their interesting/useful
observations/comments/suggestions on my report "Modelling of a Coastal Aquifer
using FEFLOW" (available at ftp://ftp.wasy.de/FEFLOW/Goa.pdf ).

(1) Reinhard Zapata (Waterloo Hydrogeologic, Canada)
(2) Krishnaiah C. (India)
(3) S.V.N.Rao (Roorkee, India)
(4) V.V.S. Gurunadha Rao (Hyderabad, India)
(5) Michael Jorgensen (Australia)

I am prompted to seek further suggestions for the following issues in modelling
the seawater intrusion in coastal aquifers.

(a) How to model the effect of salt pans on groundwater in coastal areas?

(b) How to incorporate the evaporation from open water surfaces (e.g. to define
time-variant boundary condition in case of rivers) and evaporation from shallow
groundwater table?

(c) How to model the effect of brackish water in rivers (due to tidal backwater
effect from sea) on groundwater in coastal areas?

(d) How to develop correlation between resistivity values and TDS and between
resistivity values and hydraulic conductivity.

(e) Suitability of Kriging, Akima and Inverse Distance Weighting techniques for
interpolation/regionalization of different parameters/variables.

Any suggestions for the above will be helpful for extension of this (or similar)
study in future.

There is a small errata in the report - title of figure 7 may be read as
"Measured Values of Hydraulic Conductivity (*10E-4 m/s)" - the multiplier was
missing.

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/
==================================================

I'm not familiar with how VMOD PRO 4.2 writes the SEAWAT input files,
but I have had similar issues when the time information in the DIS
(MF2K) input file does not match the time information in the BTN
(MT3DMS) input file.  Try matching the time information in those two
files.

Hope that helps.

Greg


--- In seawat@..., rmdasdhy@... wrote:
>
> Dear All,
>
> I have given the data upto 3650 days.But the programme is running
for 4688 days.Data for 4688 days were given initially.When I give
comand to run for 3650 days the programme is abnormally
terminated.When I give comand to run for 4688 days the programme ends
normaly.The package is SEAWAT 2000 which comes with VMOD PRO 4.2
> What is the reason?
>
> Thanks.
>
> Radha mohan Das,
> Research Scholar,
> Department of Hydrology,
> IIT Roorkee,
> Roorkee 247667
> Uttarakhand,
> INDIA
>

All,
I have been trying to use the observation process in SEAWAT 2000.
The model runs fine, but I do not get anything meaningful from the
observation process output files.  I have checked to see if it is my
OBS or HOB input files by running the model in MODFLOW 2000 which
results in meaningful output files.  I have also checked the binary
head file output by the SEAWAT model and find it to contain the
correct heads.  It is just the heads that are output through the
observation process (the `*._os' file) that aren't accurate.

Has anyone encountered this problem before?  Has anyone been able to
successfully use the Observation process in SEAWAT 2000?  Any idea as
to what is causing the issue?

I have the Observation process set up to calculate heads at
monitoring wells during a pumping test (i.e. the model is
transient).  In the `*._os' file, the first predicted head value for
any monitoring well is shown as some number not zero and all other
predicted head values for other times at the given monitoring well
are reported as zero.  The same OBS and HOB file work fine when
running just MODFLOW 2000, it is when I try and run the model using
SEAWAT that this problem occurs.

We would like to make you aware of session H75 "Decision-Appropriate
Modeling throughout the Lifecycle of Restoration, and other, Environmental
Projects" at this years AGU Meeting in San Francisco, December 15-19
(http://www.agu.org/meetings/fm08/index.php/Main/HomePage). The goal of this
session is not to discuss the mathematical details of model applications and
uncertainty analysis: rather, the goal is to discuss examples where models
have been both successfully and unsuccessfully applied in support of
environmental decision making, and attempt to elucidate the apparent reasons
for their success or failure. The conveners consider the following as
potential topics for discussion:

*         Simplistic versus complex models - Do the benefits of complex
models justify their use?

*         Deterministic or stochastic modeling? - Their pro's and con's for
decision making and for expert testimony.

*         Dealing with uncertainty - Rigorous evaluation vs. communication?

*         How can you tell a good model from a bad? - Is there no hope for
the decision maker to tell the difference?

*         Modeling objectives - Who sets them, are they realistic, and who
evaluates the results?

*         Collaboration with stakeholders - Best practices, new paradigms,
and future directions.

Abstracts for this session are due no later than September 10th, 2008:
please review the instructions on the following page
(http://submissions3.agu.org/submission/subm-ins.htm) regarding submittals.

We hope that you will be able to join us for some lively debate in December

Regards,

Matt Tonkin, S.S. Papadopulos & Assoc., Inc.
  <blocked::mailto:matt@...> matt@...

Dave Miller, Fluor Hanford, Richland, WA

David_S_Miller@...

Alex Spiliotopoulos, S.S. Papadopulos & Assoc, Inc.

alexs@...

SSP&A is excited to be able to host the following course in Bethesda,
Maryland (USA) this September, 2008:

"Building and Applying Analytical Element Models with Examples and Exercises
using Python"

Analytic element models are often refreshingly easy to understand, and
insightful. The best approach to learn the analytic element method is to
implement it in a simple computer program. This sounds daunting, but using
the Python language, it is possible for any hydrogeologist with a basic
understanding of the building blocks of a computer program. In this new
course, you will build your own analytic element model, and have a great
time doing it.

The course is taught by Dr. Mark Bakker. Mark has taught for 10 years at
American universities and now teaches at the Delft University of Technology
in The Netherlands. In addition, Mark is a consultant for Kiwa WR in Holland
and for WHPA in Bloomington, IN. Mark received his Ph.D. at the University
of Minnesota under the guidance of Prof. Otto Strack, the originator of the
analytic element method. Mark has written a number of analytic element
programs, of which TimML, the free, open-source analytic element model for
steady multi-aquifer flow is the most extensive. Mark has taught workshops
in Python for Hydrologists and used Python in his Computational Methods
class at the University of Georgia, where students were programming in
Python after a basic 2 hour lecture.

For further information on the course, please visit the following web page,
or write to matt@... :

  <http://www.sspa.com/Software/analytic.shtml>
http://www.sspa.com/Software/analytic.shtml

Registration will be limited to 12 attendees. A block of rooms has been
arranged at a nearby hotel for course participants - details are provided on
the web page.

Best wishes -

Matt Tonkin
S.S. Papadopulos & Assoc., Inc.
Tel:    301 718 8900 x258
email: matt@...

Dear All,

I have given the data upto 3650 days.But the programme is running for 4688
days.Data for 4688 days were given initially.When I give comand to run for 3650
days the programme is abnormally terminated.When I give comand to run for 4688
days the programme ends normaly.The package is SEAWAT 2000 which comes with VMOD
PRO 4.2
What is the reason?

Thanks.

Radha mohan Das,
Research Scholar,
Department of Hydrology,
IIT Roorkee,
Roorkee 247667
Uttarakhand,
INDIA

Dear colleague: At present I am working to develop a neural network
assessment model to predict various seawater quality variables and to
study the significant correlation between different seawater quality
variables along Gaza-Palestine. The water quality assessment and the
neural network model will help to setup the required management plan
to control and combat marine pollution along Gaza coast. One of my
PhD work articles has been accepted at (Quarterly) Mehran University
Research Journal of Engineering and Technology. The following is a
display of my article.

Title: Application of ANN for Predicting Water Quality Parameters in
the Mediterranean Sea along Gaza-Palestine

ABSTRACT

Seawater pollution problems are gaining interest world wide because
of their health impacts and other environmental issues. Intense human
activities in areas surrounding enclosed and semi-enclosed seas such
as the Mediterranean Sea always produce in the long term a strong
environmental impact in the form of coastal and marine degradation.
This paper is concerned with the use of Artificial Neural Networks
(ANN's) - Multilayer Perceptron (MLP) model for the prediction of pH
and EC in water quality parameters along Gaza city coast. MLP neural
networks are trained and developed with reference to three major
oceanographic parameters (water temperature, wind speed and
turbidity) to predict the values of pH and EC; these parameters are
considered as inputs of the neural network. The data collected
comprised of four years and collected from nine locations along Gaza
coastline. Results show that the model has high capability and
accuracy in predicting both parameters. The network performance has
been validated with different data sets and the result show
satisfactory performance. Results of the developed model have been
compared with multiple regression statistical models and found that
MLP predictions are slightly better than the conventional methods.
Prediction results prove that the proposed approach is suitable for
modeling the water quality in the Mediterranean Sea along Gaza.

Keywords: pH; electrical conductivity; temperature, wind speed,
turbidity, water quality; ANNs, MLP; statistical model.

Best regards,
Hossam Zaqoot
Institute of Environmental Engineering and management
Mehran University of Engineering and Technology, Jamshoro-Pakistan
Gaza Strip-Palestine

Hi everyone,

I'm trying to learn how to use SEAWAT to simulate seawater intrusion.
Numerical  modelling is a completely new world for me. I'm having a
problem with it as my model crashed when I try to make the cell size
smaller. Can anyone come up with any suggestion? I would be very much
appreciated.

Thanks,
Lee

SSP&A is very excited to be able to host the following course in Bethesda,
Maryland (USA) this September, 2008:

"Building and Applying Analytical Element Models with Examples and Exercises
using Python"

Analytic element models are often refreshingly easy to understand and very
insightful. The best approach to learn the analytic element method is to
implement it in a simple computer program. This sounds daunting, but using
the Python language, it is possible for any hydrogeologist with a basic
understanding of the building blocks of a computer program. In this new
course, you will build your own analytic element model, and have a great
time doing it!

The course is taught by Dr. Mark Bakker. Mark has taught for 10 years at
American universities and now teaches at the Delft University of Technology
in The Netherlands. In addition, Mark is a consultant for Kiwa WR in Holland
and for WHPA in Bloomington, IN. Mark received his Ph.D. at the University
of Minnesota under the guidance of Prof. Otto Strack, the originator of the
analytic element method. Mark has written a number of analytic element
programs, of which TimML, the free, open-source analytic element model for
steady multi-aquifer flow is the most extensive. Mark has taught workshops
in Python for Hydrologists and used Python in his Computational Methods
class at the University of Georgia, where students were programming in
Python after a basic 2 hour lecture.

For further information on the course, please visit the following web page,
or write to matt@... :

  <http://www.sspa.com/Software/analytic.shtml>
http://www.sspa.com/Software/analytic.shtml

Registration will be limited to 12 attendees. A block of rooms has been
arranged at a nearby hotel for course participants - details will be
provided on the web page soon.

Best wishes -

Matt Tonkin
S.S. Papadopulos & Assoc., Inc.
Tel:    301 718 8900 x258
email: matt@...

Good Day !!!

You are invited to join "Yahoo! Groups - archydro" (ArcGIS -
Geographical Information System). This group aims to provide a forum
for exchange of ideas and experiences regarding application of GIS in
Hydrology and Water Resources; and use of ArcGIS software (in
general) and Arc Hydro (in particular).

Geographical Information Systems (GIS) are used to display,
manipulate and analyse spatial (map) data. ArcGIS (produced by ESRI)
is an integrated collection of software products for building a
complete geographic information system (GIS). There are three ArcGIS
desktop applications - ArcCatalog, ArcMap, and ArcToolbox. ArcCatalog
is the application for managing your spatial data holdings, for
managing your database designs, and for recording and viewing
metadata. ArcMap is used for all mapping and editing tasks, as well
as for map-based analysis. ArcToolbox is used for data conversion and
geoprocessing. Using these three applications together, you can
perform any GIS task, simple to advanced, including mapping, data
management, geographic analysis, data editing, and geoprocessing.
There are also server-based ArcGIS products, as well as ArcGIS
products for PDAs. Extensions can be purchased separately to increase
the functionality of ArcGIS.

GIS is a powerful tool for developing solutions for water resources
such as assessing water quality and managing water resources on a
local or regional scale. Hydrologists use GIS technology to integrate
various data and applications into one, manageable system. ArcGIS
with Arc Hydro gives you the flexibility to combine watershed
datasets from one map source with stream and river networks. The
suite of tools contained in Arc Hydro facilitate the creation,
manipulation, and display of hydro features and objects within the
ArcGIS environment. Use ArcGIS Spatial Analyst for hydrologic
analysis such as calculating flow across an elevation surface, which
provides the basis for creating stream networks and watersheds;
calculating flow path length; and assigning stream orders.

To subscribe this group, please send a blank email to
archydro-subscribe@yahoogroups.com

Apologies for cross-postings.

Regards
Kumar

Thanks,

I'm waiting for reply from WHI Tech support, I'll keep you informed.

Daniele

--- In seawat@..., michael kulbersh <mkulbersh@...> wrote:
>
> Danielle,
>
>   there used to be a SEWAT tutorial that came w/V-MOD because I
remember going over it once.  I am sure if you contact tech support @
WHI they can provide it to you.
>
>   However, I do have tutorials for SEWAT for GW Vistas.
>
>   Mike
>
>
> daniele_baldi <daniele_baldi@...> wrote:
>           Hi
>
> Does anyone have some example for V-Modflow on SEWAT?
>
> Thanks,
>
> Daniele
>

Danielle,

   there used to be a SEWAT tutorial that came w/V-MOD because I remember going
over it once.  I am sure if you contact tech support @ WHI they can provide it
to you.

   However, I do have tutorials for SEWAT for GW Vistas.

   Mike


daniele_baldi <daniele_baldi@...> wrote:
           Hi

Does anyone have some example for V-Modflow on SEWAT?

Thanks,

Daniele

Dear Daniele,

You can download the complete report at

http://www.nih.ernet.in/report/Goa.pdf

Regards
Kumar


--- In seawat@..., "daniele_baldi" <daniele_baldi@...>
wrote:
>
> Dear Kumar,
> I'm learning sea-water intrusion and I'd like to read your study.
> Please, if you could send me a copy on daniele.baldi@...
>
> Thank you very much.
>
> Daniele
>
> --- In seawat@..., "C. P. Kumar" <cpkumar@> wrote:
> >
> > Dear Member,
> >
> > I am pleased to inform that I have recently completed
> > the study "Modelling of a Coastal Aquifer using
> > FEFLOW". A brief introduction of the study is given
> > below.
> >
> > Coastal tracts of Goa (India) are rapidly being
> > transformed into settlement areas. The poor water
> > supply facilities have encouraged people to have their
> > own source of water by digging or boring a well.
> > During the last decade, there have been large-scale
> > withdrawals of groundwater by builders, hotels and
> > other tourist establishments. Though the seawater
> > intrusion has not yet assumed serious magnitude, but
> > in the coming years it may turn to be a major problem
> > if corrective measures are not initiated at this
> > stage. It is necessary to understand how fresh and
> > salt water move under various realistic pumping and
> > recharge scenarios. Objectives of the study include
> > simulation of seawater intrusion in a part of the
> > coastal area in Bardez taluk of North Goa, evaluation
> > of the impact on seawater intrusion due to various
> > groundwater pumping scenarios and sensitivity analysis
> > to find the most sensitive parameters affecting the
> > simulation.
> >
> > For the study, a finite-element model (FEFLOW) was
> > used for model simulations. The FEFLOW is an
> > interactive finite element simulation system (Version
> > 5.1) for three-dimensional (3D) or two-dimensional
> > (2D), i.e. horizontal (aquifer-averaged), vertical or
> > axi-symmetric, transient or steady-state, fluid
> > density- coupled or linear, flow and mass, flow and
> > heat or completely coupled thermohaline transport
> > processes in subsurface water resources (groundwater
> > systems).
> >
> > Salient conclusions of the study are given below.
> >
> > (1) Presently, seawater intrusion in Bardez taluk of
> > North Goa is confined only upto 290 m from the coast
> > under normal rainfall conditions and present draft
> > pattern. It may slightly extend farther for low
> > rainfall years.
> >
> > (2) Seawater intrusion may further advance inland if
> > withdrawals of groundwater by builders, hotels and
> > other tourist establishments continue to increase in
> > the coming years.
> >
> > (3) Groundwater salinity needs to be continuously
> > monitored near the coastal area, especially within 2
> > km from the coast.
> >
> > (4) Corrective measures with proper planning and
> > management of groundwater resources in the area need
> > to  be initiated so that it may not turn to be a major
> > water quality problem in the coming times.
> >
> > (5) The model is very sensitive to hydraulic
> > conductivity and dispersivity values. Field and
> > laboratory investigations need to be undertaken for
> > measurement of these parameters for use in further
> > modelling studies.
> >
> > (6) The study will guide in making management
> > decisions to monitor and control seawater intrusion
> > and planning of groundwater development in the area.
> >
> > I can send the complete report (in pdf format) by
> > e-mail to the interested persons. Your comments or
> > suggestions are welcome.
> >
> > 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/
> > ================================================

Dear Kumar,
I'm learning sea-water intrusion and I'd like to read your study.
Please, if you could send me a copy on daniele.baldi@...

Thank you very much.

Daniele

--- In seawat@..., "C. P. Kumar" <cpkumar@...> wrote:
>
> Dear Member,
>
> I am pleased to inform that I have recently completed
> the study "Modelling of a Coastal Aquifer using
> FEFLOW". A brief introduction of the study is given
> below.
>
> Coastal tracts of Goa (India) are rapidly being
> transformed into settlement areas. The poor water
> supply facilities have encouraged people to have their
> own source of water by digging or boring a well.
> During the last decade, there have been large-scale
> withdrawals of groundwater by builders, hotels and
> other tourist establishments. Though the seawater
> intrusion has not yet assumed serious magnitude, but
> in the coming years it may turn to be a major problem
> if corrective measures are not initiated at this
> stage. It is necessary to understand how fresh and
> salt water move under various realistic pumping and
> recharge scenarios. Objectives of the study include
> simulation of seawater intrusion in a part of the
> coastal area in Bardez taluk of North Goa, evaluation
> of the impact on seawater intrusion due to various
> groundwater pumping scenarios and sensitivity analysis
> to find the most sensitive parameters affecting the
> simulation.
>
> For the study, a finite-element model (FEFLOW) was
> used for model simulations. The FEFLOW is an
> interactive finite element simulation system (Version
> 5.1) for three-dimensional (3D) or two-dimensional
> (2D), i.e. horizontal (aquifer-averaged), vertical or
> axi-symmetric, transient or steady-state, fluid
> density- coupled or linear, flow and mass, flow and
> heat or completely coupled thermohaline transport
> processes in subsurface water resources (groundwater
> systems).
>
> Salient conclusions of the study are given below.
>
> (1) Presently, seawater intrusion in Bardez taluk of
> North Goa is confined only upto 290 m from the coast
> under normal rainfall conditions and present draft
> pattern. It may slightly extend farther for low
> rainfall years.
>
> (2) Seawater intrusion may further advance inland if
> withdrawals of groundwater by builders, hotels and
> other tourist establishments continue to increase in
> the coming years.
>
> (3) Groundwater salinity needs to be continuously
> monitored near the coastal area, especially within 2
> km from the coast.
>
> (4) Corrective measures with proper planning and
> management of groundwater resources in the area need
> to  be initiated so that it may not turn to be a major
> water quality problem in the coming times.
>
> (5) The model is very sensitive to hydraulic
> conductivity and dispersivity values. Field and
> laboratory investigations need to be undertaken for
> measurement of these parameters for use in further
> modelling studies.
>
> (6) The study will guide in making management
> decisions to monitor and control seawater intrusion
> and planning of groundwater development in the area.
>
> I can send the complete report (in pdf format) by
> e-mail to the interested persons. Your comments or
> suggestions are welcome.
>
> 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/
> ================================================
>

Hi

Does anyone have some example for V-Modflow on SEWAT?

Thanks,

Daniele

sir,

conc. contours are not given;if given at all the contours follow recharge
boundary.

what is the remerdy.

R.M.Das
research scholar
Hydrology
IIT roorkee
INDIA

Dear  colleagues,

We have the pleasure to inform you that the Environmental Studies and Research
Institute, Minufiya University will organize scientific 1st International
conference on "Environmental Studies and Research" at Egypt in the span April,
7-9, 2008.

Please find attached the conference brochure including: main topics,
registration details, payment terms, contacts, etc. We are asking for your
contribution. (Attachments are not allowed in this group - Moderator)

Please make sure that all your colleagues that could be interested in the
conference are informed about it. If you have further inquiries please do not
hesitate to contact us via (n.elhefnawy@...).

Looking forward to see you in the conference.

Prof. Dr. Nabil Nasr El-Hefnawy
Institute Dean
32897 Environmental Studies and Research Institute (ESRI),
Minufiya University, Sadat City, EGYPT.
Tel.: +2 048 2603208  -  +2 048 2608762
Fax: +2 048 2600404
Cell Phone: +2 010 6609055
E. mail: n.elhefnawy@...

A 3 day PEST course will be held in Bethesda, Maryland, USA, the week of
April 7th, 2008. Recent PEST development has focused on stabilizing the
inverse problem for highly-parameterized models and evaluating model
predictive error. In doing so, the methods embodied in PEST take into
account the null space contribution to potential predictive error. All
course participants will receive a CD with a seven comprehensive PEST
workshops. Participants will also receive the latest version of PEST and all
of its support utilities. The workshops show how to use these utilities. For
more information on the course, including registration, please visit the
following web page.

http://www.sspa.com/pest/training.html

Current course registration fees reflect a 10% "early-bird" registration
discount available through January 31st, 2008. Fees will rise to the full
rate February 1st, 2008. Please write to pest@... with any questions
about the course.

Best wishes ---

Matt Tonkin, SSP&A
Moderator, pest@...

> Please distribute and/or post the following full-time classified
> position with the Virginia DEQ Ground Water Withdrawal Program in
> Richmond, VA.  If you need additional information about the duties of
> this position, please do not hesitate to call or write.
> Thank you
>
> Robin Patton
> 804.698.4085
>  <<Picture (Metafile)>>  DEPARTMENT OF ENVIRONMENTAL QUALITY
> 		 EMPLOYMENT OPPORTUNITIES
>
> At the Virginia Department of Environmental Quality, we value our
> employees who dedicate themselves in protecting Virginia's natural
> resources.  Be a part of a dynamic team where you can make a
> difference while enjoying all of the benefits of working in state
> government:  competitive salary for working a 40 hour week,
> comprehensive insurance, 12 paid holidays, vacation/personal/sick
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> schedules, tuition reimbursement, telecommuting, performance based
> recognition, access to an extensive professional training program,
> many opportunities for advancement, and much more.  So if you enjoy
> working on a variety of projects with high-quality colleagues in a
> fostering environment, apply today!
>
> ENVIRONMENTAL SPECIALIST II (Environmental Program Planner), #P4337
> Richmond, Virginia
> Salary:  Negotiable - Based on Experience.
>
> The Department of Environmental Quality, Division of Water Resources,
> Office of Ground Water Withdrawal Permitting seeks a qualified
> candidate to assure consistent, accurate, technically defensible and
> enforceable ground water withdrawal permits are issued by providing
> technical expertise and support to the regional offices and agency
> management regarding the potential impacts of proposed withdrawals.
> The position accomplishes this through ground water modeling
> activities (i.e., design of hydrogeologic investigations, evaluation
> of site and regional hydrogeologic data, develop and update regional
> models, and development of custom ground water flow models).
>
> Qualifications include considerable knowledge of state and federal
> water laws and regulations, hydrogeology, geology, development and
> application of ground water flow models (drawdown and salt water
> intrusion), design and evaluation of aquifer tests, and management of
> spatially related data.  Must demonstrate and possess excellent
> computer programming and communication skills, orally and in writing.
> Degree in environmental, natural, or physical science, and/or
> environmental or water resources engineering or equivalent
> training/experience preferred.
>
> The Commonwealth does not provide sponsorship; therefore, applicants
> must be a citizen or national of the U.S., a Lawful Permanent
> Resident, or an alien authorized to work.  Excluding current DEQ
> employees, the selected candidate MUST pass a criminal background
> check.
>
> Contact:  Elaine Hill
> Recruit:  General Public
> Application Closing Date:  Open Until Filled
>
> For consideration for this position, candidates MUST apply online at
> https://jobs.agencies.virginia.gov
> <https://jobs.agencies.virginia.gov/>
> Applicants are encouraged to be specific regarding job-related
> knowledge, skills, and abilities.  Resumes are encouraged but do not
> substitute submittal of the online application. Applications submitted
> via postal mail, email, or fax will not be considered.  Please contact
> eahill@... if you need assistance.
>
> An Equal Opportunity/Affirmative Action Employer
> Funding:   512/25 00 00000 604 0100 000 100%
>
> Supervisor:  Robin Patton
>
> Ads:  CareerBuilder.com, VaCareerSeeker.com, Environmentalcareers.com,
> Monster.com, Universities
>
>


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

Hi

Does anyone have a tutorial for GW Vistas on SEWAT?  I am familiar
w/MODFLOW and MT3D but have not spent time reading up on SEAWAT, yet I
have the opportunity to do some work using it.  If anyone has such a
tutorial or model that they can share w/me I am sure I can figure it
out from there.

Thanks,

Mike

Sir/Madam

I have simulated the flow in MODFLOW from 1992 to 2001.
I have water quality data for 1994,1997,2002,2004.
How to incorporate it in SEAWAT FOR FLOW & TRANSPORT modeling?

R.M.Das.

Hello everybody


I just started with seawat, but i  have no idea how to set the data,
when i have a modflow that works properly and also a mt3d that works,
how can i initiate with seawat? is taking me some time to understand this.

thanks for your time and patiente


fredy.