Trackline navigation for Swath interferometric data collected by the U.S. Geological Survey along the Delmarva Peninsula, MD and VA, 2014 (Esri polyline shapefile, GCS WGS 84)

The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy. A U.S. Geological Survey cruise was conducted in the summer of 2014 to map the inner continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework that governs coastal system evolution at storm-event and longer timescales. Data collected during the 2014 cruise include swath bathymetry, sidescan sonar, chirp and boomer seismic-reflection profiles, acoustic Doppler current profiler, and sample and bottom photograph data. Processed data in raster and vector format are released here for the swath bathymetry, sidescan sonar, and seismic-reflection profiles. More information about the USGS survey conducted as part of the Hurricane Sandy Response-- Geologic Framework and Coastal Vulnerability Study can be found at the project website or on the WHCMSC Field Activity Web pages: <http://woodshole.er.usgs.gov/project-pages/delmarva/> <http://cmgds.marine.usgs.gov/fan_info.php?fan=2014-002-FA>

德尔马瓦半岛（Delmarva Peninsula）是一处长220千米的岬角、沙嘴与障壁岛复合体，曾受飓风桑迪（Hurricane Sandy）严重影响。2014年夏季，美国地质调查局（U.S. Geological Survey, USGS）开展了一次科考航次，采用地球物理与采样技术绘制该半岛内侧大陆架地图，以明确控制海岸系统在风暴事件及更长时间尺度上演化的地质框架。
2014年航次采集的数据包括条带测深（swath bathymetry）、侧扫声呐（sidescan sonar）、chirp与boomer地震反射剖面、声学多普勒流速剖面仪（acoustic Doppler current profiler）数据，以及沉积物采样与海底摄影资料。
针对条带测深、侧扫声呐及地震反射剖面数据，本次已发布栅格与矢量格式的处理后成果。
有关本次作为飓风桑迪响应——地质框架与海岸脆弱性研究组成部分的USGS科考项目的更多详情，可访问项目官网或WHCMSC野外活动网页：<http://woodshole.er.usgs.gov/project-pages/delmarva/> <http://cmgds.marine.usgs.gov/fan_info.php?fan=2014-002-FA>