By S. Trivikrama Rao, Christian Hogrefe, Gopal Sistla, Shiang-Yuh Wu, Winston Hao (auth.), Sven-Erik Gryning, Ekaterina Batchvarova (eds.)
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Extra resources for Air Pollution Modeling and Its Application XIII
Comparison with observations As a model evaluation procedure, the simulated surface ozone is compared with observations from two sources: the EMEFS database and the Canadian National Air Pollutant Surveillance (NAPS) database. The comparisons for a selected sites shown in Figure 2 are presented here. More extensive and detailed evaluation can be found in Multistakeholder (1997) and Gong et al. (1998). Time series of the modelIed and the observed ozone for 4 sites are shown in Figure 3. The first two sites (Madison and Newburyport) are fairly elose to source regions and, as seen from both the simulation and the observation, the time series at these two sites are dominated by strong diurnal signals.
Traditional model evaluation methods are not very powerful in revealing to us why the model has performed the way it did. A REGIONAL MODELLING STUDY OF TRANSPORT AFFECTING THE CANADIAN SOUTHERN ATLANTIC REGION OXIDANTS Wanmin Gongt, Xiude Lin2, Sylvain Menard3, Pierre Pellerin4, and Robert Benoit4 1Atmospheric Environment Service, Downsview, Ontario, Canada 20 ntario Hydro, Toronto, Ontario, Canada 340 Lucien Theriauit, Notre-Dame-de-I'Ile Perrot, Quebec, Canada 4RPN, Atmospheric Environment Service, Dorval, Quebec, Canada INTRODUCTION Elevated ozone levels in the Canadian southern Atlantic region (SAR) are usually associated with regional ozone episodes over the northeastern US and southern Ontario/Quebec, typically under the synoptic settings of a high pressure system to the east over the Atlantic Ocean and a low pressure system to the northwest.
Modelled ozone (ppb) and wind vectors at the first model level for a) 20Z August 1, 1988 and b) 20Z August 4, 1988. Comparison with observations As a model evaluation procedure, the simulated surface ozone is compared with observations from two sources: the EMEFS database and the Canadian National Air Pollutant Surveillance (NAPS) database. The comparisons for a selected sites shown in Figure 2 are presented here. More extensive and detailed evaluation can be found in Multistakeholder (1997) and Gong et al.
Air Pollution Modeling and Its Application XIII by S. Trivikrama Rao, Christian Hogrefe, Gopal Sistla, Shiang-Yuh Wu, Winston Hao (auth.), Sven-Erik Gryning, Ekaterina Batchvarova (eds.)