rm08_09_50gv2.tif

During the summers of 2008 and 2009 the USGS conducted bathymetric surveys from West Ship Island, Miss., to Dauphin Island, Ala., as part of the Northern Gulf of Mexico (NGOM) Ecosystem Change and Hazard Susceptibility project. The survey area extended from the shoreline out to approximately 2 kilometers and included the adjacent passes. The bathymetry was primarily used to create a topo-bathymetric map and provide a base-level assessment of the seafloor following the 2005 hurricane season. Additionally, these data will be used in conjunction with other geophysical data (chirp and side scan sonar) toward constructing a comprehensive geological framework of the Mississippi Barrier Island Complex. The culmination of the geophysical surveys will provide the data necessary for scientists to define, interpret, and provide baseline bathymetry and seafloor habitat for this area and to aid scientists in predicting future geomorpholocial changes of the islands with respect to climate change, storm impact, and sea-level rise. Furthermore, these data provide information for feasibility of barrier island restoration, particularly in Camille Cut, and efforts for the preservation of historical Fort Massachusetts.2008年与2009年夏季，美国地质调查局（USGS）作为北墨西哥湾（Northern Gulf of Mexico, NGOM）生态系统变化与灾害易感性项目的组成部分，开展了从密西西比州西希普岛至阿拉巴马州多芬岛的水深测量作业。本次测量区域覆盖海岸线向外延伸约2公里的范围，包含邻近的通航水道。此次水深测量的核心目标为制作地形水深图，并针对2005年飓风季过后的海底开展基础评估。此外，本次采集的数据将与浅地层剖面（chirp）、侧扫声呐等其他地球物理数据相结合，用于构建密西西比障壁岛群的综合地质框架。此次地球物理勘探的最终成果将为科研人员提供必要的数据支撑，以明确、阐释该区域的基准水深与海底栖息地，并助力科研人员预测岛屿在气候变化、风暴影响及海平面上升背景下的未来地貌变化。此外，这些数据还可为障壁岛修复（尤其是卡米尔水道区域的修复）的可行性评估，以及保护历史遗迹马萨诸塞堡的相关工作提供参考依据。