Document: NUREG-0800
Document ID: 332f67ca-c2d9-4259-bbfb-485a47724ddc
Document Type: srp
Title: REGIONAL CLIMATOLOGY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0636/ML063600393.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.1
CFR Part: 
CFR Title: 

Content:
rological averages and extremes are best obtained from stations that have long periods of record. Meteorological stations used to describe the regional climatology might not be near the site, with the possible exception of stations at existing nuclear power plants near which the site might be located. Therefore, one primary concern of this review is to determine the representativeness of the available data for the site. Proximity to the site and differences in topography, terrain elevation, land use (e.g., urban versus rural), and closeness to large bodies of water between the site and an offsite data source should be taken into consideration when evaluating the representativeness of an offsite data source. The adequacy of the meteorological stations and their data is also evaluated, including data collection and recording techniques. 2.3.1-7 Revision 3 - March 2007 Meteorological averages and extremes are checked against standard publications to determine whether the site characteristics are reasonable for ESP applications or design and operating bases for CP, OL, or COL applications. Climatological data summaries suitable for review of the applicant’s values are published by organizations such as the American Society of Civil Engineers (e.g., Reference 10), American Society of Heating, Refrigerating, and Air-Conditioning Engineers (e.g., Reference 23), and American Standards Institute. Climatological data suitable for use in this review are available from NOAA’s National Climatic Data Center. For example, the Engineering Weather Data CD-ROM (Reference 11) contains data summaries prepared by the U.S. Air Force Combat Climatology Center. The historical data used to characterize a site should extend over a significant time interval to capture cyclical extremes. Current literature on possible changes in the weather in the site region should also be reviewed to be confident that the methods used to predict weather extremes are reasonable. 3. Air Quality The