Comparative analysis between results of Lagrangian and Gaussian Atmospheric Models.
Journal Title: Advance Research Journal of Multidisciplinary Discoveries - Year 2018, Vol 30, Issue 30
Abstract
The atmospheric modeling has simple fast-running models with little data demands, which require some academic preparation from users, but the accuracy of their results is questionable and they are recommended only for screening to determine if a complex modeling is necessary or not. SCREEN3 was the screening model used in this research.The use of more complex modeling will depend on the atmospheric conditions in the study area, the complexity of the topography and the variability in terrestrial coverage. The Panama Canal being a complex area, with undulating topography, the presence of the change in water-soil cover that contributes to a three-dimensional variability of the meteorological conditions and the phenomena of fumigation, it was proposed to use the Lagrangian model CALPUFF. However, it was important to consider the evaluation, through a correlational analysis of the results, of the advantage of using CALPUFF instead of SCREEN3. The results of both models yielded Pearson coefficients for the three modeled pollutants (PM10, NO2, SO2) in a range of 0.7 to 0.84, indicating a considerable correlation; however, the values of CALPUFF hourly concentrations were greater than the SCREEN3 values up to a factor of 5, which would suggest the use of CALPUFF.
Authors and Affiliations
Ricardo De Leon Ortega, Jose Fabrega
Keywords
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