Text Files of the DGPS Navigation Logged with HYPACK Software on U.S. Geological Survey Cruise 2014-046-FA from September 15 to 17, 2014

The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA), is producing detailed geologic maps of the coastal sea floor. Bathymetric data, originally collected by NOAA for charting purposes, provide a framework for research and management activities along southern Narragansett Bay, show the composition and terrain of the seabed, and provide information on sediment transport and benthic habitat. During September 2014, bottom photographs and surficial sediment data were acquired as part of a ground-truth reconnaissance survey of this area. Interpretations were derived from the multibeam-echosounder, sedimentary, and photographic data collected in Narragansett Bay. For more information on the ground-truth survey see https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-046-FA.

美国地质调查局（U.S. Geological Survey, USGS）与美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）合作，正在编制沿海海底的详细地质图。最初由NOAA为海图绘制工作采集的水深地形数据（Bathymetric data），为纳拉甘西特湾南部的科研与管理活动提供了基础框架，可清晰反映海底的物质组成与地形特征，同时可为沉积物搬运与底栖生境相关研究提供关键信息。2014年9月，研究团队针对该区域开展地面验证踏勘调查，同步采集了海底照片与表层沉积物数据。本次研究的解译成果，均基于在纳拉甘西特湾采集的多波束测深仪（multibeam-echosounder）数据、沉积学数据与摄影数据生成。如需了解该地面验证调查的更多详情，请访问：https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-046-FA。