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As the Manager of the Bell Bay Environmental Baseline Monitoring Program from 1993 - 1996, I was responsible for the setting up and maintenance of an extensive network of meteorological instruments.
(I had inherited the instrumentation too late to change the specifications and it was not until the data acquisition phase was underway that inherent weaknesses in the original instruments and loggers became evident to all - leading to their ultimate replacement with items of suitable specification.)
The network was instituted over an area of 30 km x 60 km so that a model of air movement within the Tamar Valley could be produced. The model was to be used to predict the dispersion of air emissions from both point and diffuse sources so that the impact of new emission sources could be assessed. An additional use would be to predict the effects of changing levels from existing emission sources, particularly diffuse sources such as motor vehicles and domestic wood heaters.
To assist in the latter phase, a fairly comprehensive, although empirical, Emissions Inventory was produced and the domestic wood-smoke component was incorporated into the model.
The Study involved a number of Intensive Observation Periods (IOPs), where detailed information (including upper air stability & movement) was acquired throughout the Valley over continuous periods of about 36 hours. The Study also involved a Tracer Validation Study, based on the release of SF6, to validate the model predictions.
The results of the dispersion model were incorporated into a GIS for visual display and an example of the output is available for viewing.
The Commonwealth EPA (as it was at the time) set up a Task Force to oversee the development of a Pilot NPI for air emissions.
As the Manager of the TVAS, I was nominated to the Working Group actually developing the model, which had a graphical interface to a Windows-based GIS.
Four locations were chosen - Newcastle (NSW), Dandenong (Vic), Port Pirie (SA) and Launceston (Tas).
Each of the locations had differing air emissions profiles. A wide-ranging emissions inventory was established in each region, covering industrial, vehicular, agricultural and household emissions for a diverse range of chemicals. The householder portion of the survey gathered information on lawn mower use, wood heaters, pesticide use, backyard incineration, painting etc.
Extensive experience in instrumentation selection, installation & maintenance Good knowledge of desktop GIS programs Links to expert atmospheric modellers (see Associates) Experience in emission inventories
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