Video transects of the sea floor on Stellwagen Bank on U.S. Geological Survey field activity 2015-062-FA, aboard the R/V Auk, Oct. 21 and 22 and Nov. 3 and 4 2015 (geographic, WGS84, 2015-062-FA_driftlines.shp polyline)

This field activity is part of the effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts. The overall goal is to develop high-resolution (1:25,000) interpretive maps, based on multibeam sonar data and seabed sampling, showing surficial geology and seabed sediment dynamics. This cruise was conducted in collaboration with the Stellwagen Bank National Marine Sanctuary, and the data collected will aid research on the ecology of fish and invertebrate species that inhabit the region. The Sanctuary's research vessel, R/V Auk, visited 75 locations on Stellwagen Bank at which a customized Van Veen grab sampler (SEABOSS) equipped with a video camera and a CTD was deployed in drift mode to collect sediment for grain-size analysis, video imagery of the seabed, and temperature, conductivity, and depth measurements of the water column. Additional information regarding this field activity is available from https://cmgds.marine.usgs.gov/fan_info.php?fa=2015-062-FA.

本野外作业是马萨诸塞州波士顿外海域斯泰尔沃根班克国家海洋保护区（Stellwagen Bank National Marine Sanctuary）区域地质基底填图工作的一部分。本次工作的整体目标为基于多波束声呐数据与海底采样，制作分辨率达1:25000的解译地图，直观呈现表层地质与海底沉积物动力学特征。本次科考航次与斯泰尔沃根班克国家海洋保护区合作开展，所采集的数据将为栖息于该区域的鱼类与无脊椎动物物种的生态学研究提供支撑。该保护区的科考船R/V Auk号在斯泰尔沃根班克海域布设75个采样点位，采用走航模式部署搭载了摄像机与温盐深仪（CTD）的定制化范维恩采泥器（Van Veen grab sampler，型号SEABOSS），以采集沉积物用于粒度分析、获取海底视频影像，并测量水柱的温度、电导率与水深数据。可通过链接https://cmgds.marine.usgs.gov/fan_info.php?fa=2015-062-FA获取本野外作业的更多相关信息。