Nolensville_Flood_Hazard_Areas_2026

This feature layer contains flood hazard areas in Nolensville, TN from 2026. The flood hazard area polygons have been enriched with total population counts, OSM building counts, and % area urban forest cover. The sources for this layer are FEMA’s USA Flood Hazard Areas, OpenStreetMap Buildings for North America, ESRI's most up-to-date socioeconomic variables, USDA NAIP Imagery, and ESRI's High Resolution Land Cover Classification - USA.本要素图层包含田纳西州诺伦斯维尔（Nolensville, TN）2026年的洪水灾害风险区。该洪水灾害风险区的面状要素已补充总人口数、开放街道地图（OpenStreetMap, OSM）建筑数量以及城市森林覆盖面积占比等属性信息。本图层的数据源包括：美国联邦紧急事务管理局（Federal Emergency Management Agency, FEMA）的美国洪水灾害风险区数据集、北美地区开放街道地图建筑数据、环境系统研究所（ESRI）最新社会经济变量数据集、美国农业部（United States Department of Agriculture, USDA）国家农业影像计划（National Agricultural Imagery Program, NAIP）影像数据，以及环境系统研究所（ESRI）高分辨率土地覆盖分类数据集——美国版。