This report summarizes an analysis of the meteorological and ozone air quality conditions observed throughout the Eastern U.S. during the period 1985-1995. The primary objectives of this study were to (1) examine the meteorological and air quality characteristics of the Ozone Transport Assessment Group (OTAG) modeling episodes (LADCO, 1995), (2) identify important features of the episode periods, and (3) determine the frequency of occurrence of the associated (spatial and temporal) ozone concentration patterns and meteorological conditions.
This report summarizes the results of an ozone episode classification analysis that was performed for the cities of Atlanta, Birmingham, Charlotte, and Nashville using the Classification and Regression Tree (CART) analysis technique as the primary classification tool. The overall objective of the analysis was to characterize ozone exceedance days for the four urban areas as either predominantly "home grown" (resulting from locally emitted pollutants) or resulting from pollutant transport. Following classification of the exceedance days, the potential influence of transport with respect to attainment of the federal ozone standard was also examined.
This report documents the episode selection analysis that was performed to support the identification of a regional-scale ozone episode (with emphasis on the southeastern U.S.) to be modeled as part of the Ozone Transport Assessment Group (OTAG) super-regional modeling effort. The objectives of the episode selection analysis were to identify episodes:
| In order to add a new entry to this list, you must be registered with the OTAG/AQA Peoples Page. |