Overlapping Climate Hazard Areas in the SCAG Region for Connect SoCal 2024

This dataset includes the data used to develop Map 10 for the Connect SoCal 2024 Equity Analysis Technical Report, adopted on April 4, 2024. The dataset includes binary indicators for seven climate hazard geographies in the SCAG region based on the latest available geographic information. The nine layers were overlaid using the ArcGIS union tool with a minimum of one and a maximum of six overlapping layers in the region. The climate hazard layers include: flooding, landslides, sea-level rise, extreme heat, wildfires, drought, and earthquake hazard zones. This dataset was prepared to share more information from the maps in Connect SoCal 2024 Equity Analysis Technical Report. To reduce the loading time for the complex geometry of this layer, the vertices were simplified with a tolerance of 1 foot. For more details on the methodology, please see the methodology section(s) of the Equity Analysis Technical Report: https://scag.ca.gov/sites/main/files/file-attachments/23-2987-tr-equity-analysis-final-040424.pdf?1712261887 For more details about SCAG's models, or to request model data, please see SCAG's website: https://scag.ca.gov/data-services-requests Climate Hazard Source Details: Flood: 100-year and 500-year flood areas from Federal Emergency Management Agency (FEMA); 2017 Landslide: Landslide zones from California Geological Survey (CGS), California Department of Conservation; California Department of Conservation, California Geological Survey Geologic Maps, Accessed June 2023 Sea-level rise: areas vulnerable to 1 meter of sea-level rise from the Coastal Storm Modeling System (CoSMoS), U.S. Geological Survey (USGS); Coastal Storm Modeling System (CoSMoS) for Southern California, v3.0, Phase 2, 2018, USGS Wildfire: Local Responsibility Areas and State Responsibility Areas that are moderate, high, and very high risk of wildfires from CalFire; Fire Hazard Severity Zones Local Responsibility Areas Maps, 2007/2008, Wildland Urban Interface, 2020, CAL FIIRE Extreme heat: areas that are projected to experience more than two heat health events from 2031 to 2050 from the California Heat Assessment Tool, California Natural Resources Agency, Accessed June 2023 Drought: areas that experienced severe, extreme, or exceptional drought during September 2014 from U.S. Drought Monitor, Accessed June 2023 Earthquake: Alquist-Priolo Earthquake Fault Zones from the California Geological Survey (CGS), California Department of Conservation Substandard Housing: Housing units without plumbing facilities, U.S. Census Bureau American Communities Survey 5-year estimates 2017-2021本数据集包含用于编制《Connect SoCal 2024公平分析技术报告》中地图10的相关数据，该报告已于2024年4月4日正式采用。 本数据集基于最新可用地理信息，涵盖南加州政府协会（Southern California Association of Governments, SCAG）辖区内7类气候灾害地理区域的二分类指标。 本次研究采用9个图层，通过ArcGIS联合工具进行空间叠加分析，辖区内单区域的叠加图层数量区间为1至6层。 上述气候灾害图层包括：洪水、滑坡、海平面上升、极端高温、野火、干旱及地震灾害带。 本数据集旨在公开《Connect SoCal 2024公平分析技术报告》地图所载的更多相关信息。 为缩短该复杂几何图层的加载时长，我们以1英尺为容差对其顶点进行了简化处理。 如需了解方法学细节，请参阅《公平分析技术报告》的方法学章节：https://scag.ca.gov/sites/main/files/file-attachments/23-2987-tr-equity-analysis-final-040424.pdf?1712261887。 如需了解SCAG的模型详情或申请模型数据，请访问SCAG官方网站：https://scag.ca.gov/data-services-requests。 气候灾害与相关数据源详情如下： - 洪水：取自美国联邦紧急事务管理局（Federal Emergency Management Agency, FEMA）的100年一遇与500年一遇洪水区域，数据时间为2017年； - 滑坡：取自加州地质调查局（California Geological Survey, CGS）、加州自然资源部的滑坡带；数据源自加州自然资源部加州地质调查局地质图，2023年6月获取； - 海平面上升：取自美国地质调查局（U.S. Geological Survey, USGS）海岸风暴模拟系统（Coastal Storm Modeling System, CoSMoS）的1米海平面上升脆弱区域；相关成果为《南加州海岸风暴模拟系统v3.0 第二阶段》，2018年发布，USGS出品； - 野火：取自加州消防局（CalFire）的中等、高及极高野火风险区域的本地责任区与州责任区；相关资料包括《火灾危险等级分区本地责任区地图（2007/2008年）》《野地-城市交界带（2020年）》，加州消防局（CAL FIRE）发布； - 极端高温：取自加州自然资源部加州热评估工具的2031至2050年预计将经历2次以上热健康事件的区域，2023年6月获取； - 干旱：取自美国干旱监测系统的2014年9月经历严重、极端或异常干旱的区域，2023年6月获取； - 地震：取自加州地质调查局（CGS）、加州自然资源部的Alquist-Priolo地震断层带； - 不合格住房：取自美国人口普查局（U.S. Census Bureau）2017-2021年美国社区调查（American Community Survey, ACS）5年估算数据中的无卫生设施住房单元。