Tuesday, March 10, 2009

Latest Groundwater Vistas Modifications

The latest version of Groundwater Vistas is 5.33 Build 13. Here are the modifications since my last posting:

- Added zonebud format to Props/Export/Zone Numbers
- Changed color flooding of properties with bitmap map files to make it easier to see the colors
- Added prompt to repair streams after xyz file import
- Added Pest option to have negative RLAMFAC value
- Added sub-space enhanced Tikhonov in Pest 11.8 (note that Pest 11.8 not yet added to Vistas as we have not yet confirmed it works properly
- Added option to always draw wells regardless of which layer you are viewing
- Added transient SFR import of precip, et, runoff, and flow from text file
- Added column headers when copy/pasting from spreadsheets
- Added river bottom elevation to simplified BC editing
- Allow uncoupled transport simulation in SEAWAT2000
- Added reach number range for copying transient BC data and BC cycles

Bugs Fixed:
- Export of HFB (walls) to shapefile not working in rotated models
- Various bugs fixed for GWM
- When importing streams from text file, the reach number was always 1
- Problem with GHB file in MODPATH when GHB head was negative
- Problem importing RES input file without name file
- Gradient targets not exported properly to shapefile
- There was a problem using the DDREFERENCE flag in output control with MF2k5
- BCs/Modify/Copy Stress Period could give memory error if there were mixed steady and transient BCs and the user chose not to convert steadystate to transient
- Updating recharge pilot points after Pest run did not work properly.
- When using Pest with Kz pilot points, sometimes not all the *._kz files were written out.
- UZF Package option to use HSU zones as layer numbers did not work
- Layer number not exported to shapefile for no-flow cells
- Problem importing EVS GVG file when more than 30 layers
- Lake BCs in TMR files sometimes did not import properly


Anonymous Greg Ruskauff said...

Egad Dude, haven't you heard of feature bloat? You never seem to get any comments so I thought I'd drop you one.


Timothy R. Ginn* , Civil and Environmental Engineering, University of California-Davis, Davis, CA
Timothy D. Scheibe , Environmental Technology Directorate, Pacific Northwest Laboratory, Richland, WA
Laura Foglia , University of California-Davis, Davis, CA
Hanieh Haeri , Civil and Environmental Engineering, University of California-Davis, Davis, CA
Cynthia N. McClain , Geology, University of California-Davis, Davis, CA

The data limitations of hydrogeology rank it between Astrology and Astronomy. As a result uncertainty affects every aspect of simulation and/or prediction of subsurface fate and transport, from conceptual models to spatial discretization to parameter values and their evaluation. The literature and conference proceedings are replete with approaches, templates, paradigms and such for treatment of uncertainty, but these are mainly restricted to parameter valuation. Even so, these tools remain poorly used, especially those of the stochastic analytic sort, leading recently to explicit inquiries about why this is the case, in response to which entire journal issues have been dedicated. In 2006/2007 we made a web-based survey of hydrogeology practitioners including both consultants and academics worldwide as the "marketplace" for techniques to deal with uncertainty. Results imply significant differences in perceived importance of uncertainty, as well as on methods for uncertainty characterization and analysis, frequency and level of usage, and reasons behind the selection or avoidance of available methods. Results shed light on fruitful directions for future research in uncertainty quantification in hydrogeology, and we note some initial work toward one such direction, the bundling of groundwater age data with piezometric head data in model inversion.

is frustrating, considering the work we both put into making Monte Carlo versions of MODFLOW, MODPATH, and MT3DMS that, I thought, were pretty easy and cost effective to use. I think the fact that it is a bunch of lab academics writing this is at the heart of the problem. You?

4:57 PM  

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