H12012_INTERP.SHP: Interpretation of Bottom Features from National Oceanic and Atmospheric Administration (NOAA) Survey H12012 Offshore in Northeastern Long Island Sound (Geographic, WGS84)

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: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2010-010-FA and http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2010-015-FA美国地质调查局（U.S. Geological Survey, USGS）联合美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）以及康涅狄格州能源与环境保护部（Connecticut Department of Energy and Environmental Protection, CT DEEP），完成了长岛海峡沿岸海床的详细地质填图。由NOAA最初为海图编制工作采集的水深测量数据（Bathymetry），可为长岛海峡的科研与管理活动提供基础框架，不仅能够呈现海床地形，还可提供沉积物运移与底栖生境相关信息。2009年4月，NOAA在长岛海峡东北部近海完成了编号为H12012的水文测量任务；2010年4月至5月期间，研究团队针对该区域开展两次地面验证勘察航次，同步采集了海底摄影数据与表层沉积物数据。研究团队基于多波束测深声呐数据与用于验证的地面实测数据，构建了两个解释性数据图层。如需了解本次地面验证勘察的更多细节，可访问以下链接：http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2010-010-FA 与 http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2010-015-FA