Visual PEST-ASP combines the powerful
parameter estimation capabilities of PEST-ASP, with the graphical processing
and display features of WinPEST.
About PEST-ASP
"ASP" stands for "Advanced Spatial
Parameterization". PEST-ASP is version 5 of PEST, and is the latest version
of the popular parameter estimation package that achieves model-independence
through its capacity to communicate with a model through the model’s own
input and output files.
PEST-ASP can be used to estimate parameters
for just about any model. It works by “taking control” of the model, running
it as many times as it needs to while adjusting the parameters of the model
until the discrepancies between user-specified outputs and complementary
field or laboratory measurements are minimized in the weighted least squares
sense.
Visual PEST-ASP
Main Features
Here are just some of the features which make
Visual PEST-ASP truly unique:
- Model Indepedent
- Can be used with virtually any type of
model.
- Advanced Regularization
- Maintains numerical stability when
working with highly parameterized systems.
- Pilot Points
Uses "pilot points" as a method
of spatial parameterization to find regions of heterogeneity. PEST-ASP
dispenses with traditional and sometimes unrealistic user-defined zones
by employing "pilot points" to ensure distributed parameters are
reasonable.
Visual PEST-ASP
Inversion Engine
Uses an extremely robust numerical
inverse-problem-solver with painstaking attention to detail in all aspects
of design and implementation.
Visual PEST-ASP
Parameter Bounds
The user is able to set upper and lower
bounds on parameters during the calibration process, thus ensuring that
estimated values are in range.
Visual PEST-ASP
User Intervention
Allows user-intervention in the parameter
estimation process whereby troublesome parameters can be held for a while
and the most recent parameter upgrade repeated without the need for
extensive re-calculation.
Visual PEST-ASP
Parallel Processing
With Parallel PEST, model runs can be
distributed across a PC network. Savings in overall optimization time can be
enormous.
Visual PEST-ASP
Utilities
PEST is accompanied by a suite of powerful
utilities which automate PEST setup and carry out extensive error checking
on all aspects of PEST input dataset construction. A suite of utilities also
facilitates use of PEST with MODFLOW-2000 and HSPF.
Visual PEST-ASP
Data Handling
Observations and parameters can be grouped
for ease of property definition and weights allocation, and to add
flexibility to the inversion process.
Visual PEST-ASP
Predictive Analysis
PEST’s unique predictive analyzer allows
the user to estimate the true range of predictive non-uniqueness associated
with a calibrated model.
Visual PEST-ASP
WinPEST
The WinPEST graphical user interface
displays an extensive range of run-time and post-run data for easy analysis
and post-processing.
Visual PEST-ASP
Experience
PEST has stood the test of time. It has
been used to carry out countless calibration and data interpretation
exercises in all fields of science and engineering. Over its six-year life
it has undergone continuous improvement and refinement to keep it at the
cutting edge of model-calibration technology.
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Visual PEST-ASP - Packages & Pricing |
| Visual PEST-ASP - Single User License,
Commercial |
$ 795.00 |
| Visual PEST-ASP - Single User
License, Government |
$ 675.00 |
| Visual PEST-ASP - Single User
License, Academic |
$ 395.00 |
| Visual PEST-ASP - Site License |
Contact Us! |
| Details |
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| Price: |
$395.00 (€ 355.50)
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