New update: CALPUFF course in Santiago, Chile 3rd March 2014

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calpuff course in the seminar of is aware of the multiple issues and questions of odour modellers every day. There is a wide-ranging discussion about CALPUFF modelling with special focus on:

  • Complex terrain
  • Coastal regions/ land-water boundaries
  • Overwater transport
  • Inhomogeneous dispersion conditions
  • Stagnation (99% of odor complaints)
  • Flow reversals
  • Recirculation
  • Subhourly data management.
  • Selection of proper averaging times.
  • Peak to mean factors.

Inscription is already complete for the CALPUFF course. However, you may send us an email, in case we have the chance to include more people.



Exponent’s Atmospheric Sciences staff has experience serving a wide range of industrial and government clients around the world. Their scientists and engineers have been influential in the evolution of air quality modelling, and have developed or contributed to five of the seven U.S. EPA models recommended in the Guideline on Air Quality Models. Most notable of these is the CALPUFF model, an advanced non-steady-state meteorological and air quality modelling system recommended by many regulatory agencies worldwide as the preferred model for assessing near-field complex meteorological conditions and long-range transport applications.

Joseph Scire, CCM is a Principal Scientist at Exponent and an author of the CALPUFF model (Scire et al., 2000). He will provide training on the CALPUFF modelling system. He has more than 35 years experience in the design, development, and application of research and regulatory air quality models. He has taught more than 80 training courses over the last 18 years on the CALPUFF model for government agencies, private industry, and universities around the world.

Jenny Barclay is an independent atmospheric scientist. With 21 years of experience in dispersion modelling, Jenny was part of the Atmospheric Sciences group that developed the CALPUFF model and she is expert in odour modelling with CALPUFF.

The program of the course is the following:



Introduction to Odour Modelling

Course Outline

Ecometrika Odour Management, Santiago, Chile

March 3, 2014

Instructors: Joe Scire and Jenny Barclay

Monday, March 3: Morning

MODELLING TECHNIQUES (8:30 a.m. – 10:30 a.m.)

    1. Overview of the CALPUFF non-steady-state modelling system

    2. Special factors in odour modelling

1.2.1 Light wind speed dispersion/stagnation conditions

1.2.2 Steady-State Index

1.2.3 Complex dispersion conditions

1.2.4 Use of sub-hourly meteorological data

Morning Break (10:30 a.m. – 10:45 a.m.)

    1. CALPUFF software system

1.3.1 Model components, Graphical User Interface

1.3.2 Forecasting system for odour problems

1.3.3 Forensic modelling to diagnose source contributions

    1. Demonstration of the CALPUFF software

Lunch (12:30 p.m. – 1:30 p.m.)

Monday, March 3: Afternoon

ODOUR MODELLING (1:30 p.m. – 3:00 p.m.)

    1. Odour Properties and Effects

    2. Odour Assessment

    3. Olfactometry and Sampling

    4. Odour Regulation

    5. Dispersion Model Inputs and Emissions

    6. Odour Modelling

2.6.1 Sub-hourly Data

2.6.2 Peak to Mean ratios

    1. Interpretation of Results and Complaint Analysis

Afternoon Break (3:00 p.m. – 3:15 p.m.)


3.0 Application of CALPUFF to an Odour Problem

3.1 Subhourly Odour Case Study

 Download de program here

 inscription closed

The course will take place at the facilities of Ecometrika in Av. Amèrico Vespucio 2296, El Cortijo. Conchalí, Santiago, Chile. The cost of this one-day course is €225 EUR (VAT excluded). To register to the course, please contact us. Please note that we reserve the right to cancel the course, in case there are not enough attendees. Shall this happen, we will refund the full cost of the course.

For this introductory course there is no need to buy expensive Graphical User Interface (GUI) or have special software requirements. At the end of the course you will have a working copy of the CALApps GUI for free for your use. You do not need to buy model software or pay for additional data for this course either.

Please note that although the CALApps GUI is provided free, it does depend on third party software (Surfer graphics software by Golden Software, Inc.) to produce vector and contour plots. Download a working demo of Surfer and see videos for training on this software. A licensed copy of Surfer is required for CALApps to produce graphics, but not to set up or run the CALPUFF modelling components.





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