Enhanced Grayscale GeoTIFF Image of the 1-m Sidescan-Sonar Data From National Oceanic and Atmospheric Administration (NOAA) Survey H11446 of the Sea Floor North of Orient Point, New York (H11446_SSS1M_UTM.TIF, UTM18, 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 Orient Point, New York. During April 2010, bottom photographs and surficial sediment data were acquired as part of a USGS ground-truth reconnaissance survey. For more information on the ground-truth survey see http://quashnet.er.usgs.gov/data/2010/10010/.

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，正在开展长岛海峡沿岸海域详细地质图的编制工作。本数据集所用影像由NOAA最初为海图绘制任务采集，可为该区域的科研与管理活动提供基础支撑框架，能够展示海床的物质组成与地形特征，并提供沉积物运移及底栖生境（benthic habitat）相关信息。解释性数据图层源自纽约奥连特角以北采集的多波束测深数据（multibeam echo-sounder data）与侧扫声呐数据（sidescan-sonar data）。2010年4月，作为美国地质调查局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/2010/10010/。