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Data for Evaluating Regional-Scale Models: The AQMEII Experience

pubblicazioni - Articolo ISI

Data for Evaluating Regional-Scale Models: The AQMEII Experience

The article presents the main methodological aspects that characterized the creation of the large database of observed data used to validate the modeling simulations of air quality produced by the project AQMEII. In the light of this experience, the possible protocols are suggested to be used for general operating properly select the data observed also in other modeling applications.

The Air Quality Model Evaluation International Initiative (AQMEII) is an unprecedented effort for evaluating the capability of regional air quality models to assess concentration and deposition of a number of pollutants over a large part of the North American and European continents. More than twenty modelling groups from both sides of the Atlantic ocean participated to AQMEII, in which over ten regional-scale air quality (AQ) models were applied to retrospectively calculate, for the year of 2006, concentration and deposition fields. In order to build the database of ground measurements to compare the models against, data from the main monitoring networks in the two continents were collected, critically evaluated and processed to produce a consistent set of reference values. An overview of these activities is provided in this article. The experience gained suggests possible protocols for selecting among measurements those that better fit model evaluation procedures. We shall also point out that, although data relevant for evaluating meteorological driver were also collected within AQMEII, those are not discussed here.

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