Color Shaded-Relief GeoTIFF Image Showing the 2-m Bathymetry Generated from National Oceanic and Atmospheric Administration (NOAA) Survey H11445 North of Plum Island, New York (H11445_MB2M_UTM.TIF, UTM Zone 18, NAD83)

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 and sidescan-sonar data collected north of Plum Island, New York. During November 2009, bottom photographs and surficial sediment data were acquired as part of a ground-truth reconnaissance survey. For more information on the ground-truth survey see http://quashnet.er.usgs.gov/data/2009/09059/.

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，正在编制长岛湾沿岸海域的详细地质图。由NOAA原本为海图绘制工作采集的影像数据，为该区域的科研与管理活动提供了基础框架，可直观展示海底组成与地形特征，同时提供沉积物运移及底栖生境相关信息。解释性数据图层源自纽约普拉姆岛（Plum Island）北侧采集的多波束测深数据与侧扫声呐数据。2009年11月，作为地面验证踏勘调查的组成部分，研究团队获取了海底照片与表层沉积物数据。如需了解该地面验证调查的更多详情，请访问http://quashnet.er.usgs.gov/data/2009/09059/