Dear all, Somebody can tell me how to test the stationnary hypothesis invoked in time series analysis ? Best wishes to the yahoogroups. Courbet ... Nouveau :...
You are cordially invited to attend an exciting three-day continuing education workshop on aquifer testing methods and data analysis techniques featuring...
... Which version of MT3D, and which solution method are you using? The answers to some of your questions are dependant on the answers to these questions....
Jonathan Keizer
jkeizer@...
Jan 5, 2006 3:29 am
1900
Dear members, Happy New Year! I need your advice concerning setting up a north and south boundary for a model: the model is part of a valley area, a river is...
ali taha
alitaha07@...
Jan 8, 2006 3:55 am
1901
You are invited to visit the AQTESOLV Users Group at http://groups.yahoo.com/group/AQTESOLV/ to find over 50 links to free hydrological software. Please send a...
The Journal of Spatial Hydrology (JOSH: ISSN:1530-4736) was established in Fall 2001. We are pleased to invite you to join this endeavor as a peer reviewer for...
Has anyone used the fracture well package to represent a vertically transmissive fault in a multi layered aquifer. If so, are there any special constraints or...
Hello members, I am using ArcView 3.2a (demo version) to generate contour maps for different physico chemical parameters of groundwater samples. The contours...
I have used the fracture well package successfully over the last 10 years for various purposes, including as a conduit connecting multiple aquifers and in...
Sorab Panday
spanday@...
Jan 11, 2006 5:32 am
1906
Dear Tejaswi: Contouring is a "trend" analysis. While we accept interpolation using known random points, we do not trust extrapolation, that is program...
Karanjac
karanjac@...
Jan 12, 2006 11:11 am
1907
Dear Members, How can I go about doing sensitivity analysis for transient simulations? So far I've varied specific yeild and the source parameter by an order...
hi, i can only offer that when i have used interpolation in arcview, a gradient is maintained which can cause your gridded values to be below zero. one way to...
If you have one time series, then the decision on the stationarity of the data is actually an assumption (needed in most cases). Strict stationarity indicates...
Michel C. Boufadel
boufadel@...
Jan 12, 2006 12:41 pm
1910
About Hydroxpert Forum: Hydroxpert forum is intended to be a common platform for hydraulic and environmental engineers, hydrologists, hydrogeologists, and ...
... specific ... with deterministic, you have defind mathematical solution to determine the outcome based on some physical or natural law With stochastic,...
Hi Raj To help you clarify : * Deterministic means that for one set of input data, you will get only one solution. * probabilistic: it is a way to study and...
ETCHEVERRY David
david.etcheverry@...
Jan 13, 2006 9:37 am
1913
An alternative is to take the natural log of the values you wish to contour (grid), then grid these values, and then back-transform the gridded data and ...
Dear members, Happy New Year! I need your advice concerning setting up a north and south boundary for a model: the model is part of a valley area, a river is...
ali taha
alitaha07@...
Jan 14, 2006 5:38 am
1915
as a word of caution in arcview, matt's proposal to convert to the LN values will not preclude the occurrence of the original problem as the calculated...
Dear Rubina In stressed conditions under the granular porous formations the regional flow is always laminar, which may not be so in extreme cases of fractured...
hello all, I am using GMS6.0 and following grid approach for modeling. what I wish to know is; how can I import recharge values in recharge package in MODLFOW...
Hasmath, The reason you don't see that button is that recharge is a 2D array, not a 3D array. You will see a "2D Data Set -> Array" button that does the same ...
Norm Jones
njones@...
Jan 19, 2006 3:42 am
1920
My former colleague is dead right that kriging the log of the values will not preclude the occurrence of negative values in log space - this might be ...
However, you can only specify a transmissivity if you are using the BCF package. If you use the LPF or HUF packages, hydraulic conductivity will be used...
Richard B. Winston
rbwinston@...
Jan 19, 2006 3:44 am
1922
Dear all, I am trying to assess the volume of NAPL present in a fine sand aquifer using the API model, but using the default parameter values it seems to...
Hello to Everybody, I am dealing with groundwater modelling but also its analytical background. I am trying to solve the difference between solute rayleigh and...
I am not sure about the equations you present, but I think the difference here is due to the different mechanisms of transport. Advection along a flow path is...
I agree with most of Weinig's argument. A good discussion on Peclet and Rayleigh is given by Schincariol and separately by Wooding, both in WRR. You could...
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