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Conversion of Site-Specific Meteorological Data for use in CAP-88 PC
1Pacific Northwest National Laboratory, 902 Battelle Blvd, Richland, WA 99454.
Health Physics
|July 25, 2024
Summary
This study presents a method for preparing onsite meteorological data for the CAP-88 PC atmospheric dispersion model. Using local weather data can provide more realistic public dose estimates near facilities.
Area of Science:
- Environmental Science
- Radiological Health
- Atmospheric Modeling
Background:
- CAP-88 PC is a US EPA-approved radiological atmospheric dispersion model.
- The model typically uses a library of US meteorological data.
- Onsite meteorological data may offer more accurate local dose assessments.
Purpose of the Study:
- To provide a workaround for preparing and converting onsite meteorological data for CAP-88 PC input.
- To highlight the benefits of using local meteorological data over historical regional data.
Main Methods:
- Development of a data preparation and conversion process for onsite meteorological data.
- Integration of the prepared local data into the CAP-88 PC model.
Main Results:
- A viable method for incorporating site-specific meteorological data into CAP-88 PC was established.
- Local data potentially offers more realistic public dose estimations in the immediate vicinity of a facility.
Conclusions:
- Using onsite meteorological data in CAP-88 PC can improve the accuracy of localized dose assessments.
- Regulatory acceptance of local data for compliance may vary by jurisdiction.
- Local data is more representative of current weather patterns than historical regional data.
