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Thunderstorm hazard risk for the Atlanta, GA metropolitan region.

机译:乔治亚州亚特兰大都会区的雷暴危害风险。

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摘要

Many U.S. city regions have experienced some form of urban "sprawl," or the uneven, outward spreading of urban development from city centers. For city regions lying in areas prone to severe weather, the sprawl phenomenon exposes greater numbers of developed areas to thunderstorm hazards of different intensities. One such region, the Metropolitan Statistical Area (MSA) of Atlanta, GA, has experienced extensive sprawl development since 1960 and lies in an area prone to thunderstorms year-round. This study will use three approaches to examine how the Atlanta area's massive development has affected its overall risk to thunderstorm hazards, which include tornadoes, wind, and hail. First, spatial densities and temporal intervals of hazard events are examined for each MSA county to determine if some locations may be more prone to hazard exposure than others. Second, spatial densities are computed for population, housing, and median income values for all counties to locate areas of greatest potential loss. Last, archived census data are employed to assess overall impacts from hypothetical tornado, wind, and hail events occurring at different time periods throughout several locations in the Atlanta MSA. Given the Atlanta area's history of extensive development and hazardous weather exposure, the region qualifies as a sufficient study area for this project, whose principal goal is to determine how urbanization growth patterns affect a region's vulnerability to severe weather events.
机译:美国许多城市地区都经历了某种形式的城市“蔓延”,即城市发展从市中心向外界的不均匀扩散。对于处于恶劣天气地区的城市地区,蔓延现象使更多的发达地区面临不同强度的雷暴危害。一个这样的地区,佐治亚州亚特兰大市大都市统计区(MSA)自1960年以来就经历了广泛的蔓延发展,并且该地区常年处于雷暴天气。这项研究将使用三种方法来检查亚特兰大地区的大规模发展如何影响其整体遭受雷暴危害的风险,包括龙卷风,风和冰雹。首先,检查每个MSA县的灾害事件的空间密度和时间间隔,以确定某些地点是否比其他地点更容易遭受危害。其次,计算所有县的人口,住房和中位数收入值的空间密度,以找出潜在损失最大的地区。最后,已存档的人口普查数据用于评估在亚特兰大MSA中多个地点在不同时间段发生的假想龙卷风,风和冰雹事件的总体影响。考虑到亚特兰大地区的广泛发展和危险天气的历史,该地区有资格成为该项目的足够研究区域,其主要目标是确定城市化增长方式如何影响该地区对恶劣天气事件的脆弱性。

著录项

  • 作者

    Paulikas, Marius.;

  • 作者单位

    Northern Illinois University.;

  • 授予单位 Northern Illinois University.;
  • 学科 Geography.;Atmospheric Sciences.;Meteorology.
  • 学位 M.S.
  • 年度 2010
  • 页码 123 p.
  • 总页数 123
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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