Color Shaded-Relief GeoTIFF Image Showing the 2-m Bathymetry Generated from National Oceanic and Atmospheric Administration (NOAA) Survey H12023 in Block Island Sound (H12023_MB2M_GEO.TIF, 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. Bathymetric and sidescan-sonar data, originally collected by NOAA for charting purposes, provide a fundamental framework for research and management activities along this part of Block Island Sound, show the composition and terrain of the seabed, and provide information on sediment transport and benthic habitat. During June 2012, 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, sidescan-sonar, sedimentary, and photographic data collected in Block Island Sound. For more information on the ground-truth survey see <http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2012-002-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。原本由NOAA为海图绘制目的采集的水深测量（Bathymetric）与侧扫声呐（sidescan-sonar）数据，为布洛克岛海峡（Block Island Sound）这片区域的科研与管理活动提供了基础框架，可揭示海底的组成与地形特征，同时提供沉积物运移及底栖生境（benthic habitat）相关信息。2012年6月期间，作为该区域实地验证踏勘调查的一部分，研究团队采集了海底照片与表层沉积物数据。本次解译成果源自布洛克岛海峡海域采集的多波束测深仪（multibeam-echosounder）、侧扫声呐、沉积物学及摄影数据。如需了解本次实地验证调查的更多详情，请访问<http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2012-002-FA>。