HSPF (Hydrological Simulation Program- FOTRAN) Calibration and Validation

Please see the information below on the upcoming webinar from Forester University carded for January 23 2018. Additional information can also be sourced via the supplied links.


What’s the difference between calibration and validation? And…when is calibration/validation needed in HSPF continuous simulation modeling?

Calibration is the iterative adjustment of parameter values to get a good fit or match of simulated results with observed or recorded data.  Validation, on the other hand, is an independent check or comparison of simulated results produced by the calibrated parameter values with a separate time period of recorded data. In a perfect world, a good calibration should also result in a good validation.

Join returning speaker, Doug Beyerlein, for the third session in our HSPF Hydrology Master Class Series exploring and comparingcalibration parameters, the statistical tests and measures used to evaluate a calibration and/or validation, and when (and when not) to calibrate HSPF parameter values.

We’ll kick off this online training webinar by discussing the various factors and variables that come into play when evaluating whether a calibration is a good calibration. We’ll then examine what distinguishes calibration parameters from other parameters in the HSPF continuous simulation model and which calibration parameters have the greatest impact on simulated results. Next, we’ll evaluate the pros and cons of a number of statistical tests and measures used to determine whether simulated results accurately reproduce and represent the observed hydrology. We’ll conclude by discussing the outside influences that affect calibration and validation and the circumstances in which a calibration/validation is unnecessary.

Learning Objectives
Attendees can expect the discussion and education of the following learning objectives.

  • Learn which parameters are calibration parameters (and which are not).
  • Learn how to focus on the significant calibration parameters that have the greatest influence on the simulated results.
  • Learn the different statistical tests and measures used in evaluating a calibration and/or validation and the advantages and disadvantages of each.
  • Learn to identify the outside influences that will affect a calibration and validation.
  • Learn when a calibration/validation is not needed.

Persons wishing to enroll in this course, which is available at the the cost of 79.00 (US Dollars) can use the following link.

About Presenter

Douglas Beyerlein, P.E., P.H., D.WRE

Clear Creek Solutions

Train Your Team
Get the whole team trained! We offer additional savings if you register as a group. For group pricing information, contact us at learning@forester.net


* Presentations are scheduled for approximately one hour with a 15-20 minute question and answer session to follow. Presentation may exceed scheduled time.
* Each state and certification agency has different requirements; it is your responsibility to know what they are. Note that 1 PDH = 0.1 CEU.
* Purchase of this course allows you access to the presentation(s) for 6 months from the order date.

Author: WRLibrarian

Currently employed with the Water and Sewerage Authority at the Water Resources Agency, I have created this blog to provide an online presence for the Agency's library. The purpose of this blog would be to inform staff about library related activities, as well as, relevant information that can have an impact on the Agency's operation.

One thought on “HSPF (Hydrological Simulation Program- FOTRAN) Calibration and Validation”

  1. Good day Alex. There are many courses offered by Forester University such as the one I spoke about in this blog post which you can access to get a better idea of the topic highlighted. However, unlike some of the courses I pointed out in the earlier posts there is a cost attached.


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