Locations of Sea-Floor Photographs Acquired During U.S. Geological Survey (USGS) Cruise 2010-015-FA Offshore in Northeastern Long Island Sound (Geographic, WGS84, H12012_BOTPHOTOS.SHP)

The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Connecticut Department of Energy and Environmental Protection (CT DEEP), has produced detailed geologic maps of the coastal sea floor. Bathymetry, originally collected by NOAA for charting purposes, provides a fundamental framework for research and management activities in Long Island Sound, shows the terrain of the seabed, and provides information on sediment transport and benthic habitat. During April 2009 NOAA completed hydrographic survey H12012 offshore in the northeastern Sound, and during April 2010 and May 2010 bottom photographs and surficial sediment data were acquired as part of two ground-truth reconnaissance surveys of this area. Two interpretive data layers were derived from the multibeam echo-sounder and the ground-truth data used to verify them. For more information on the ground-truth surveys see: https://cmgds.marine.usgs.gov/fan_info.php?fan=2010-010-FA and https://cmgds.marine.usgs.gov/fan_info.php?fan=2010-015-FA.

美国地质调查局（U.S. Geological Survey, USGS）与国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）、康涅狄格州能源与环境保护部（Connecticut Department of Energy and Environmental Protection, CT DEEP）合作，完成了长岛海峡沿岸海床的详细地质制图工作。水深测量数据（Bathymetry）最初由NOAA为海图编制目的采集，可为长岛海峡的科研与管理活动提供基础框架，其既能直观呈现海床地形，也能提供沉积物运移与底栖生境（benthic habitat）相关信息。2009年4月，NOAA完成了该海峡东北部近海的水文测量任务H12012；2010年4月及5月，研究团队针对该区域开展两次地面验证勘察调查，采集了海底照片与表层沉积物数据。研究人员基于多波束回声测深仪（multibeam echo-sounder）数据与用于验证的地面调查数据，衍生出两个解释性数据图层。如需了解地面验证调查的更多详情，可访问以下链接：https://cmgds.marine.usgs.gov/fan_info.php?fan=2010-010-FA 与 https://cmgds.marine.usgs.gov/fan_info.php?fan=2010-015-FA。