25m Hillshaded Bathymetric ArcRaster Grid of Apalachicola Bay and St. George Sound, FL (APBAY25HS)

These data were collected under a cooperative mapping program between the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration Coastal Services Center (NOAA\CSC), and the Apalachicola National Estuarine Research Reserve (NERR). The primary objectives of this program were to collect marine geophysical data to develop a suite of seafloor maps to better define the extent of oyster habitats, the overall seafloor geology of the bay and provide updated information for management of this resource. In addition to their value for management of the bay's oyster resources, the maps also provide a geologic framework for scientific research and the public
High-resolution bathymetry, backscatter intensity, and seismic profile data were collected over 230 square kilometers of the floor of the bay. The study focused on the Apalachicola Bay and Western St. George Sound portions of the estuary mostly in depths > 2.0 meters.

本数据集来源于美国地质调查局（U.S. Geological Survey, USGS）、美国国家海洋和大气管理局海岸服务中心（National Oceanic and Atmospheric Administration Coastal Services Center, NOAA CSC）与阿巴拉契科拉国家河口研究保护区（Apalachicola National Estuarine Research Reserve, NERR）联合开展的合作测绘项目。本项目的核心目标为采集海洋地球物理数据，生成系列海底地图，以更精准地划定牡蛎栖息地的分布范围，明确海湾整体的海底地质特征，并为该资源的管理提供更新后的参考信息。除具备海湾牡蛎资源的管理应用价值外，该系列地图还可为科学研究及公众提供地质框架支撑。
研究团队在该海湾230余平方公里的海底区域采集了高分辨率水深测量数据、反向散射强度数据与地震剖面数据。本次研究聚焦于河口区域的阿巴拉契科拉湾与圣乔治湾西部海域，大部分探测区域的水深大于2.0米。