PAMSDAS: A PC-based menu-driven system for the statistical analysis of photochemical assessment monitoring station data
- ENVIRON International Corp., Novato, CA (United States)
In recognition of the need for detailed ambient data on ozone precursors and meteorological conditions associated with ozone episodes, EPA developed the Photochemical Assessment Monitoring Station (PAMS) program in accordance with the Enhanced Ozone Monitoring Regulations of the Clean Air Act Amendments of 1990. This program requires enhanced monitoring of ozone precursors and meteorological conditions in certain ozone nonattainment areas. Foremost among the components of the PAMS monitoring program is the collection of hourly or 3-hourly speciated hydrocarbon measurements with a target list of 55 species. Together with the carbonyl, NO{sub x}, O{sub 3}, and meteorological measurement components, this results in the collection of large amounts of complex ambient data which are difficult and time consuming to manage and analyze effectively. Insightful review and analysis of PAMS data by a wide variety of users in the air quality community is needed to realize the full value of PAMS data for air quality management. In recognition of this need, EPA has sponsored the development of PAMSDAS, a new, PC-based, user-friendly, menu driven program that provides air quality analysts and managers with easy point and click access to their PAMS data for browsing, preparing tabular and graphical summaries, and performing statistical analyses. No knowledge of statistical data analysis software programs is required to use the program. Summary and analysis functions included in PAMSDAS are specifically tailored to provide the types of information which have been found to be especially useful to users of PAMS data (e.g., mean diurnal profiles, comparisons of weekday and weekend data, calculation of TNMOC weight percents, etc.). PAMSDAS` modular design allows new analysis and display functions to be easily added. PAMSDAS is based on S-PLUS, an extension of the S language originally developed by AT and T.
- OSTI ID:
- 679383
- Report Number(s):
- CONF-980632--
- Country of Publication:
- United States
- Language:
- English
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