Analysis of Precipitation (Rain and Snow) Levels and Straight-line Wind Speeds in Support of the 10-year Natural Phenomena Hazards Review for Los Alamos National Laboratory

Kelly, Elizabeth J.¹  Dewart, Jean Marie¹  Deola, Regina² 

[1]Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

[2]Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

关键词: extreme events;    natural phenomena hazards;   

DOI  :  10.2172/1229718
RP-ID  :  LA-UR--15-29420
PID  :  OSTI ID: 1229718

学科分类：地球科学(综合)

美国|英语

来源: SciTech Connect

【 摘 要 】

This report provides site-specific return level analyses for rain, snow, and straight-line wind extreme events. These analyses are in support of the 10-year review plan for the assessment of meteorological natural phenomena hazards at Los Alamos National Laboratory (LANL). These analyses follow guidance from Department of Energy, DOE Standard, Natural Phenomena Hazards Analysis and Design Criteria for DOE Facilities (DOE-STD-1020-2012), Nuclear Regulatory Commission Standard Review Plan (NUREG-0800, 2007) and ANSI/ ANS-2.3-2011, Estimating Tornado, Hurricane, and Extreme Straight-Line Wind Characteristics at Nuclear Facility Sites. LANL precipitation and snow level data have been collected since 1910, although not all years are complete. In this report the results from the more recent data (1990???2014) are compared to those of past analyses and a 2004 National Oceanographic and Atmospheric Administration report. Given the many differences in the data sets used in these different analyses, the lack of statistically significant differences in return level estimates increases confidence in the data and in the modeling and analysis approach.