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Publications referenced or available on this DMCC site:

NRC Regulatory Guide 1.221. Design-Basis Hurricane and Hurricane Missiles for Nuclear Power Plants

Specifically, this regulatory guide provides new guidance that the NRC staff considers acceptable for use in selecting the design-basis hurricane windspeed and hurricane-generated missiles that a new nuclear power plant should be designed to withstand to prevent undue risk to the health and safety of the public.

  • NUREG/CR-7004:   Technical Basis for Regulatory Guidance on Design-Basis Hurricane-Borne Missile Speeds for Nuclear Power Plants, Draft, Dec 2009.
  • NUREG/CR-7005Technical Basis for Regulatory Guidance on Design-Basis Hurricane Wind Speeds for Nuclear Power Plants, Draft, Dec 2009.

Wet Bulb Globe Temperature Measurement at the Y-12 National Security Complex
Thomas E. Bellinger, CCM, Y-12 National Security Complex, Oak Ridge, TN

This paper documents the Y-12 National Security Complex (Y-12 NSC) wet bulb globe temperature (WBGT) project, components used, installation, costs, suppliers, as well as the data obtained during the summer of 2009 and how it is used at the Y-12 NSC. The overall goal is to improve heat stress awareness of the Y-12 NSC plant population, provide Fire Services and Industrial Hygiene with needed heat stress information, and provide a historical archive of measurable WBGT.

Evaluating the Wind Data from the Automated Surface Observing System in Oak Ridge, TN - Is KOQT the Calmest Site in the U.S.?, by Thomas Bellinger, Y-12, Oak Ridge, TN.

The winds from the Automated Surface Observing System at Oak Ridge, TN (KOQT) are often shown as calm. Calms pose problems for dispersion modelers and emergency response decision makers when they are trying to determine which way a plume is headed, who should take shelter or evacuate, and where to locate the incident command center. The goal of this study is to understand the high frequency of calm or variable winds at KOQT and the implications this has for dispersion modeling on the Oak Ridge Reservation. The study was published in 2011. 

Investigation of Range – Applicable Lightning Detection Systems
Darryl Randerson and Walter W. Schalk, Special Operations and Research Division, Las Vegas, Nevada

This publication is an investigation of current operating lightning activity/potential monitoring systems. The primary purpose of the study was to compare systems used to determine the static electrical field at the sites. The study was across 10 Federal facilities using up to four systems to determine the static electrical field. One research grade system being evaluated, the LDAR/LMA might increase the lightning detection envelope by 5 to 10 minutes.

Lightning Detection at the Savannah River Site
Washington Savannah River Company, Savannah River Site, Aiken, SC

Worker safety at the Department of Energy’s Savannah River Site (SRS) is the top priority of site management. Due to the size of the site, 310 square miles, getting timely hazardous weather warnings to remote workers is critical for optimal safety. Lightning presents one of the largest weather related hazards to remote workers and can strike with little or no warning, making detection crucial for safety. The Savannah River National Laboratory (SRNL) monitors changes to the electric field of the atmosphere atop a building near the northern edge of the SRS. Data from the electric field sensor were correlated with actual lightning strikes over the 2006 and 2007 lightning seasons. In most cases, the data indicate that ample warning time can be provided before lightning strikes occur.

The Federal Plan for Meteorological Services and Supporting Research
Fiscal Year 2012 (FCM-01-2011)

The Federal Plan provides Congress and the Executive Branch with a comprehensive compilation of proposed meteorological service and supporting research programs for the current fiscal year and a review of programs from the previous fiscal year.  The Office of Federal Coordinator for Meteorology (OFCM) is an interdepartmental office established because Congress and the Executive Office of the President recognized the importance of full coordination of federal meteorological activities. Its mission is to ensure the effective use of federal meteorological resources by leading the systematic coordination of operational weather requirements and services, and supporting research, among the federal agencies.  Fifteen federal departments and agencies are currently engaged in meteorological activities and participate in the OFCM's coordination and cooperation infrastructure. The OFCM carries out its tasks through an interagency staff working with representatives from the federal agencies who serve on program councils, committees, working groups, and joint action groups. This infrastructure supports all of the federal agencies that are engaged in meteorological activities or have a need for meteorological services.

Preliminary Review of Safety Assessment Issues at Savannah River Site, August 2011(PNNL-20734)
Bruce Napier, Jeremy Rishel, and Nathan Bixler; Pacific Northwest National Laboratory (PNNL); Richland, WA

A preliminary review of meteorological and MACCS2 consequence assessment modeling issues at the Savannah River Site (SRS) was conducted by meteorologists and health physicists from PNNL and Sandia National Laboratories (SNL). This review focused on the following issues:  

  • Use of SRS meteorological data in MACCS2
  • Deposition velocities for particles and tritium
  • MACCS2 dispersion coefficients
  • Use of low surface roughness in open areas
  • Adequacy of SRS meteorological monitoring
  • Wind speed adjustment heights
  • Validity of MACCS2 calculations at close-in distances

A more detailed report is planned that will elaborate on the above issues and associated recommendations.