NOAA Composite Shoreline

The NOAA Office for Coastal Management’s composite shoreline is a high-resolution vector shoreline based on a multi-temporal collection of NOAA shoreline manuscripts (T-sheets), which are special-use planimetric or topographic maps that precisely define the shoreline and alongshore natural and man-made features. Note that shorelines may have eroded, acreted, or been anthropogenically altered since the historic T-sheets were produced. These data are derived from shoreline data that were produced by the NOAA National Ocean Service including its predecessor agencies. Where T-sheets are unavailable, NOAA’s extracted vector shoreline (EVS) was used to compile seamless shoreline coverage. For this layer, NOAA's national dataset was clipped to the Florida state boundary and control points, jetties, and piers were removed.美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）海岸管理办公室的复合海岸线数据集，是基于多时序采集的NOAA海岸线手稿（T-sheets）构建的高分辨率矢量海岸线。T-sheets属于专用平面测量图或地形图，可精准界定海岸线及沿岸的自然与人工地物。需注意，自历史T-sheets编制完成以来，海岸线可能已发生侵蚀、淤积或人为改造。本数据集源自NOAA国家海洋服务局（含其前身机构）生成的海岸线数据。在无法获取T-sheets的场景下，采用NOAA提取矢量海岸线（Extracted Vector Shoreline, EVS）生成无缝海岸线覆盖图层。针对该图层，已将NOAA国家级数据集裁剪至佛罗里达州州界范围内，并移除了其中的控制点、防波堤与码头。