Outline of the Sidescan-Sonar Data Collected During National Oceanic and Atmospheric Administration (NOAA) Survey H11346 (H11346OUTLINE.SHP, Geographic)

The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Massachusetts Office of Coastal Zone Management (MA CZM), 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 the Massachusetts coastline, shows the composition and terrain of the seabed, and provides information on sediment transport and benthic habitat. Interpretive data layers were derived from the combined single-beam and multibeam echo-sounder data and sidescan-sonar data collected in the vicinity of Edgartown Harbor, Massachusetts. During August 2008 seismic-reflection profiles (Boomer and Chirp) were acquired, and during September 2008 bottom photographs and surficial sediment data were acquired as part of two ground-truth reconnaissance surveys.

美国地质调查局（U.S. Geological Survey, USGS）联合美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）以及马萨诸塞州海岸带管理办公室（Massachusetts Office of Coastal Zone Management, MA CZM），正编制马萨诸塞州沿海海底的详细地质图。由NOAA为海图绘制工作采集的原始影像数据，可为该段马萨诸塞海岸线沿线的科研与管理活动提供基础框架，能够反映海底的物质组成与地形特征，并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马萨诸塞州埃德加敦港（Edgartown Harbor）周边采集的单波束测深仪、多波束测深仪数据与侧扫声呐数据的融合数据集。2008年8月，项目组获取了Boomer与Chirp震源的地震反射剖面数据；2008年9月，作为两次地面验证踏勘调查的组成部分，采集了海底照片与表层沉积物数据。