Workplan of Working Group 3

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Last update:
July 31st 2002

The Working Group has prepared the following workplan (WP).. The WP contains the following items (coordinators in parenthesis):

  • WP 1: Analysis and evaluation of meteorological data during air pollution episodes in European urban areas (Ranjeet Sokhi),

  • WP 2: Evaluation and testing of the performance of various mesoscale and NWP models against a specific dataset in the course of air pollution episodes (Erik Berge), and

  • WP 3: Evaluation and testing of a specific model against various datasets in the course of air pollution episodes (Millan Millan).

The idea of WP 1 is first to compile relevant data in a structured and harmonised forum, using a specific questionnaire, and then analyse and evaluate the results. The work shoud be limited to a few of the most important compounds (as, e.g. PMx, NOx and O3), and specific list of meteorological variables. Based on the initial questionnaire, a limit number of cities will be selected (those with the best available information, and covering various European regions), and the corresponding results for these will be inter-compared.

The basic idea of WP's 2 and 3 is to evaluate either several models against one dataset (WP 2), or one model against several datasets (WP 3). Clearly, while the WP's 2 and 3 are partly complementary, these can be partly overlapping. The main focus of WP2 will probably be on the Central European (CE) and the Northern European (NE) regions, while WP3 will have more emphasis on the SE and CE regions.

One particular model evaluation exercise could address the testing of the performance of the MM5 model in various cities (for instance, Oslo, Helsinki and Copenhagen). The meteo-
rological dataset from a mast that is 330 meters high in the Helsinki Metropolitan Area (Kivenlahti mast) is available for model evaluation studies.

These work packages are intented to be a starting point for a more concrete cooperation between the participants. The final objective is to produce a joint publications, peer-reviewed if possible, based on each comparison or evaluation activity in these WP's.

A specific time-table was also set for these actions. These WP's have to be completed within six months, i.e. latest in November 2001, and the WP coordinators are responsible for keeping this timetable. The results of this work will be presented by the WP coordinators and discussed at the next WG meeting in Toulouse, France in 3-4 October, 2001, both at the WG3 meeting and the Workshop.

The previous workplan is here.




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