Bathymetric Dynamic Digital Elevation Model for the Northern Gulf of Mexico.

The Bathymetric Dynamic Digital Elevation Model (BDDEM) was developed using open source software. The BDDEM's initial basis was obtained by merging the five digital elevation models of the Northern Gulf region released by the National Centers for Environmental Information. The final build of the BDDEM includes all of the National Ocean Service hydrographic surveys conducted in Alabama, Mississippi and Louisiana through 2011. The digital elevation model (BDDEM) is available at resolutions of 3, 1 and 1/3 arc seconds.

水深动态数字高程模型（Bathymetric Dynamic Digital Elevation Model，BDDEM）采用开源软件开发构建。其初始基础数据通过合并美国国家环境信息中心（National Centers for Environmental Information）发布的北墨西哥湾区域5套数字高程模型得到。该模型的最终版本包含了截至2011年在阿拉巴马州、密西西比州及路易斯安那州境内开展的全部美国国家海洋服务局（National Ocean Service）水文勘测数据。本数字高程模型（BDDEM）提供3弧秒、1弧秒及1/3弧秒三种分辨率的数据集。