Positive responses to AERIUS at the Flemish Environment Agency

Wednesday, 14 May 2014

Flanders has decided to also develop an integrated approach to nitrogen. A working group on models is currently being set up to assess the possibilities for a calculation tool to support policy.  At the invitation of this working group, AERIUS and the RIVM visited the Flemish Environment Agency to hold a presentation on the Dutch approach. 

The meeting was the follow up of a more policy-oriented AERIUS presentation in April of this year. The eight participants had their professional background in both monitoring and modelling of nitrogen. AERIUS project leader Mark Wilmot provided a detailed explanation not only of AERIUS as a model, but also about the development methods and project background and organisation. In addition, he also elaborated on the way in which policy principles are operationalised in the tool. All those present agreed that this last point is one of the main challenges in the development of the tool set.  

Advice to the Flemish task force
The working group members were very interested in AERIUS as one of the possibilities for the Flemish PAS instrumentation, as its functionality appears to fit the need. Obviously, there are also differences, such as in emission factors, meteorology and geographical projection, both those seem to have technical solutions.

A nice similarity is that of VLOPS, the Flemish implementation of the dispersion model OPS, which also is the calculation centre of AERIUS. Other combinations are also quite conceivable, such as with the IFDM tool.  Other important choices relate to the areas of organisation and funding. The model working group will present their advice about the tool set to the Flemish interdepartmental task force PAS.

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Picture by: André Leroux