Locations of Sea-Floor Photographs Acquired During U.S. Geological Survey (USGS) Cruise 2011-006-FA in the Vicinity of Cross Rip Channel, Offshore Massachusetts (2011_006_CRBOTPHOTOS shapefile, Geographic, WGS84)

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. Bathymetry, originally collected by NOAA for charting purposes, provides a fundamental framework for research and management activities off southern New England, shows the character and terrain of the seabed, and provides information on sediment transport and benthic habitat. During April-May 2009 NOAA completed hydrographic survey H12007 in the vicinity of Cross Rip Channel in Nantucket Sound off southern Cape Cod, Massachusetts and during June 2011 bottom photographs and surficial sediment data were acquired as part of ground-truth reconnaissance surveys of this area. Interpretations were derived from the multibeam echo-sounder data and the ground-truth data used to verify them.

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，正在编制新英格兰南部沿海海床的详细地质图。水深测量（bathymetry）数据最初由NOAA为海图绘制工作采集，可为新英格兰南部近海的科研与管理活动提供基础框架，直观展现海床的形态与地形特征，同时为沉积物运移及底栖生境研究提供关键信息。2009年4月至5月，NOAA在马萨诸塞州科德角南部近海楠塔基特湾的克罗普水道（Cross Rip Channel）附近完成了编号为H12007的水文测量作业；2011年6月，该团队针对该区域开展地面验证勘察，采集了海底照片与表层沉积物数据。研究人员通过多波束测深声呐（multibeam echo-sounder）数据解译得到相关成果，并利用地面验证数据对解译结果进行了核实校验。