ESRI Binary 2-m Bathymetric Grid of National Oceanic and Atmospheric Administration (NOAA) Survey H11999 in Long Island Sound, North of Duck Pond Point, New York (H11999_2M_GEO, Geographic, WGS84)

The U.S. Geological Survey (USGS), in cooperation with the Connecticut Department of Environmental Protection and National Oceanic and Atmospheric Administration (NOAA), is producing detailed geologic maps of the coastal sea floor. Imagery, originally collected by NOAA for charting purposes, provides a fundamental framework for research and management activities along this part of Long Island Sound, shows the composition and terrain of the seabed, and provides information on sediment transport and benthic habitat. Interpretive data layers were derived from the multibeam echo-sounder data collected north of Duck Pond Point, New York. During April and May 2010, bottom photographs and surficial sediment data were acquired during 2 cruises as part of USGS ground-truth reconnaissance surveys of this area. For more information on the ground-truth surveys see <http://quashnet.er.usgs.gov/data/2010/10010/> and <http://quashnet.er.usgs.gov/data/2010/10015/>.

美国地质调查局（U.S. Geological Survey, USGS）与康涅狄格州环境保护部、美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）合作，正在编制长岛海峡沿岸海域的详细海床地质图。由美国国家海洋和大气管理局为海图绘制工作采集的原始影像资料，为长岛海峡沿岸的科研与管理活动提供了核心基础框架，可直观展现海床的物质组成与地形特征，并可为沉积物运移过程及底栖生境研究提供关键信息。解释性数据图层源自纽约鸭塘角北侧采集的多波束测深仪（multibeam echo-sounder）实测数据。2010年4月至5月期间，研究团队通过两次巡航作业获取了海底照片与表层沉积物数据，该数据属于美国地质调查局针对该区域开展的实地验证踏勘调查项目的一部分。如需了解更多实地验证调查的相关细节，请访问<http://quashnet.er.usgs.gov/data/2010/10010/>与<http://quashnet.er.usgs.gov/data/2010/10015/>。