JPEG formatted images of EdgeTech SB-512i, EdgeTech SB-424, and Knudsen 3200 chirp seismic-reflection profiles collected by the U.S. Geological Survey offshore of Massachusetts within northern Cape Cod Bay.

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, Woods Hole Science Center (WHSC). Initiated in 2003, the primary objective of this program is to develop regional geologic framework information for the management of coastal and marine resources. Accurate data and maps of sea-floor geology are important first steps toward protecting fish habitat, delineating marine resources, and assessing environmental changes due to natural or human impacts. The project is focused on the inshore waters of Massachusetts, primarily in depths between 3 and 30 meters. Data collected for the mapping cooperative have been released in a series of USGS Open-File Reports (http://woodshole.er.usgs.gov/project-pages/coastal_mass/html/current_map.html). This spatial dataset is from the study area located in northern Cape Cod Bay, and consists of high-resolution geophysics (bathymetry, backscatter intensity, and seismic reflection) and ground validation (sediment samples, video tracklines, and bottom photographs). The data were collected during five separate surveys conducted between 2003 and 2008 (USGS-WHSC surveys 06012 in 2006; 07001, 07002, and 07003 in 2007; and 08002 in 2008) and cover more than 480 square kilometers of the inner continental shelf.

For more information on the seismic surveys see http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2006-012-FA , http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2007-00-FA , http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2007-002-FA , http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2007-003-FA , and http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2008-002-FA

These data are also available via GeoMapApp (http://www.geomapapp.org/) and Virtual Ocean ( http://www.virtualocean.org/) earth science exploration and visualization applications.

本数据集基于与马萨诸塞州海岸带管理办公室（Coastal Zone Management, CZM）、美国地质调查局（U.S. Geological Survey, USGS）海岸与海洋地质项目伍兹霍尔科学中心（Woods Hole Science Center, WHSC）签订的合作协议采集所得。该项目于2003年启动，核心目标是构建区域地质框架信息，以支撑海岸与海洋资源管理工作。精准的海底地质数据与图件，是保护鱼类栖息地、划定海洋资源范围、评估自然或人类活动引发的环境变化的重要前置环节。

本项目聚焦马萨诸塞州近岸海域，作业水深主要介于3至30米之间。本次制图合作采集的数据已以一系列美国地质调查局公开文件报告（USGS Open-File Reports）的形式发布，详情见：http://woodshole.er.usgs.gov/project-pages/coastal_mass/html/current_map.html。

本次空间数据集取自科德角湾北部研究区域，包含高分辨率地球物理数据（水深测量、反向散射强度、地震反射数据）与实地验证数据（沉积物样品、视频测线与海底照片）。数据采集工作于2003至2008年间分五次完成（美国地质调查局-伍兹霍尔科学中心2006年的06012号调查、2007年的07001、07002、07003号调查，以及2008年的08002号调查），覆盖了超过480平方千米的内陆架区域。

若需了解地震勘测的更多详情，可访问以下链接：http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2006-012-FA、http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2007-00-FA、http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2007-002-FA、http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2007-003-FA以及http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2008-002-FA。

用户也可通过GeoMapApp（http://www.geomapapp.org/）与Virtual Ocean（http://www.virtualocean.org/）这两款地球科学探索与可视化应用获取本数据集。