Trackline navigation for swath interferometric bathymetry data collected in 2015 by the U.S. Geological Survey along the Delmarva Peninsula, MD and VA (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 in the fall of 2012. The U.S. Geological Survey conducted cruises during the summers of 2014 and 2015 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. Geophysical data collected during the cruises include swath bathymetric, sidescan sonar, chirp and boomer seismic reflection profiles, grab sample and bottom photograph data. 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 and http://cmgds.marine.usgs.gov/fan_info.php?fan=2015-001-FA. Data collected during the 2014 survey can be obtained here: http://dx.doi.org/10.5066/F7MW2F60德尔马瓦半岛（Delmarva Peninsula）是一处长220公里的岬角、沙嘴与障壁岛复合体，在2012年秋季遭受飓风桑迪（Hurricane Sandy）的严重影响。美国地质调查局（U.S. Geological Survey, USGS）于2014年和2015年夏季开展巡航调查，采用地球物理与采样技术对德尔马瓦半岛内侧大陆架进行测绘，以明确控制风暴事件尺度及更长时间尺度下海岸系统演化的地质框架。本次巡航采集的地球物理数据涵盖条带测深（swath bathymetric）、侧扫声呐（sidescan sonar）、chirp与boomer地震反射剖面、抓斗取样及海底摄影数据。有关作为“飓风桑迪响应——地质框架与海岸脆弱性研究”项目组成部分的USGS调查的更多信息，可查阅该项目网站或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 及 http://cmgds.marine.usgs.gov/fan_info.php?fan=2015-001-FA。2014年调查采集的数据可通过以下链接获取：http://dx.doi.org/10.5066/F7MW2F60