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Potential Impacts of Accelerated Sea-Level Rise and Hurricane-Induced Storm Surge in Western Pasco County, Florida

机译：佛罗里达州西帕斯科县海平面上升和飓风引发的风暴潮的潜在影响

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摘要

Sea levels have risen approximately 20 cm since the beginning of the 20th century and more than 3 cm in the past 20 years, suggesting that global sea level rise is accelerating. As sea levels continue to rise and storms become more intense, coastal property and populations become more susceptible to damage. Florida is especially vulnerable to hurricane-induced storm surge (HSS) and the onset of accelerated sea-level rise (ASLR) due to its extensive coastline and high population density along the coast. The main purpose of this research is to assess the potential economic impacts of ASLR and HSS for two of western Pasco County's municipalities, Port Richey and New Port Richey. A Geographic Information System is used to determine the spatial extent at a high-resolution of coastal inundation, the economic loss based on property value and road expenditure due to this inundation, and its impact on critical infrastructure. The results from this study showed coastal flooding generated by 0.5m SLR amounted to 48.8% land loss and $217,108,692 of property loss. Monetary losses from inundated properties shifted dramatically from 1.0m to 1.5m SLR, from $295 million to $417 million, suggesting that the tipping point could only be a half-meter SLR. Based on the 2.0m SLR results, most of major highway US-19 was completely flooded, property tax losses amounted to approximately $7.1 million, and road expenditure was approximately $158 million. Data provided in this study can be useful for coastal management and planning in Port Richey and New Port Richey.
机译：自20世纪初以来，海平面上升了约20厘米，而在过去20年中，海平面上升了3厘米以上，这表明全球海平面上升正在加速。随着海平面继续上升和风暴变得更加强烈，沿海财产和人口变得更容易受到破坏。佛罗里达州特别容易受到飓风引发的风暴潮（HSS）和海平面加速上升（ASLR）的影响，原因是佛罗里达州海岸线宽阔，沿海人口密度高。这项研究的主要目的是评估ASLR和HSS对西部Pasco县的两个城市，Richey和New Port Richey的潜在经济影响。地理信息系统用于确定高分辨率的沿海淹没的空间范围，基于财产价值和由于这种淹没造成的道路支出的经济损失及其对关键基础设施的影响。这项研究的结果显示，50万单反相机产生的沿海洪灾相当于损失了48.8％的土地，并损失了217,108,692美元的财产。被淹没的财产造成的货币损失从100万单反大幅增加到150万，从2.95亿美元增加到4.17亿美元，这表明临界点只能是半米的单反。根据200万SLR的结果，大部分US-19主要高速公路被完全淹没，财产税损失总计约710万美元，道路支出约为1.58亿美元。这项研究中提供的数据对于Port Richey和New Port Richey的沿海管理和规划很有用。

著录项

  • 作者

    Harris, Kittiya.;

  • 作者单位

    University of South Florida.;

  • 授予单位 University of South Florida.;
  • 学科 Geographic information science and geodesy.;Climate change.
  • 学位 M.A.
  • 年度 2017
  • 页码 54 p.
  • 总页数 54
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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