Other ID: none
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Funding Program(s): National Seafloor Mapping and Benthic Habitat Studies: Atlantic (LQ000FO)
Principal Investigator(s): Page Valentine
Affiliate Investigator(s): Dr. David Wylie, SBNMS
Information Specialist(s): Dann Blackwood
Data Type(s): Environmental Data: CTD, Imagery: Photo, Imagery: Video, Location-Elevation: Navigation, Sampling: Geology
Scientific Purpose/Goals: Collect seabed sediment samples for geological mapping project
Start Port/Location: Scituate, MA
End Port/Location: Scituate, MA
Start Date: 2017-08-22
End Date: 2017-08-23
Equipment Used: SeaBOSS, GoPro camera, Furuno satellite compass SC-30, Nikon 7100 digital camera, SBE 19plus V2 SeaCAT Profiler CTD
Information to be Derived: Sediment samples and seabed imagery for geological mapping
Summary of Activity and Data Gathered: Visited locations within Stellwagen Bank National Marine Sanctuary. A customized Van Veen grab sampler (SEABOSS) equipped with a video camera and a conductivity, temperature, and depth (CTD) instrument was deployed in drift mode to collect sediment for grain-size analysis, video imagery of the seabed, and measurements of water column properties. Total stations 39; total CTD casts 39; total sediment samples 37; total video drifts (4 to 10 min, 0.9 to 5.0 gigabytes) 39; total seabed images 78; total sediment sample images 64.
Staff: Dann Blackwood
Notes: Travel to and from Scituate, MA for day-cruises to Stellwagen Bank.
CTD required as for previous cruises.
Load Auk on Mon Aug 21 in Scituate, MA
Stellwagen Bank NMS
|North: 42.5||South: 42||West: -70.5||East: -70|
Valentine, P.C., and Cross, V.A., 2019, Location and analyses of sediment samples collected on Stellwagen Bank off Boston, Massachusetts from November 5, 2013 to April 30, 2019 on U.S. Geological Survey field activities: U.S. Geological Survey data release, https://doi.org/10.5066/P9FWFLPD.
Valentine, P.C., and Cross, V.A., 2018, Sea-floor sediment samples, seabed imagery, and CTD instrument data collected on Stellwagen Bank in August 2017, U.S. Geological Survey Field Activity 2017-043-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9A57QWI.
|Cruise log||SeaBOSS||Acquisition and observation logs for seabed video and sediment samples collected aboard the R/V Auk on Stellwagen Bank.|
|Survey Equipment||Survey Info||Data Type(s)||Data Collected|
|SeaBOSS||The SEABed Observation and Sampling System (SEABOSS) was used to collect sediment samples with a modified Van Veen sampler and video images of the seabed with GoPro cameras mounted on the frame. A CTD was mounted horizontally on the SEABOSS frame and its maximum depth is approximately 1 meter above the seabed.||Surveys (biological)|
|2017-043-FA_sedsamples (Location and analyses of sediment samples collected aboard the R/V Auk on Stellwagen Bank (Geographic, WGS 84, point shapefile, XLSX and CSV formats).)|
2017-043-FA_station_summary (Station and data summary for data collected aboard the R/V Auk on Stellwagen Bank (Geographic, WGS 84, point shapefile, XLSX and CSV formats).)
|GoPro camera||Seabed video images were collected using a battery-operated, high-definition (1920 x 1080 pixels) GoPro digital video camera mounted on the USGS SEABed Observation and Sampling System (SEABOSS). The SEABOSS system had two GoPro cameras and a Seaviewer camera attached to it. The Seaviewer camera had a live feed to the surface and was used only to observe obstacles, like gill nets and lobster gear, in order to avoid entanglement. In the case of camera failure, the additional cameras provided backup video, which was needed for stations 4656 and 4662. As the SEABOSS drifted over the seabed, the cameras imaged the seabed at a rate of 60 frames per second from an altitude of ~1 meter.||Photo|
|2017-043-FA_SeabedImages (Seabed still images collected aboard the R/V Auk on Stellwagen Bank (JPEG image format. EXIF headers have been added to include navigation and other meta tags).)|
2017-043-FA_video_driftlines (Video transects of the sea floor collected aboard the R/V Auk on Stellwagen Bank (Geographic, WGS 84, polyline shapefile format).)
|Furuno satellite compass SC-30||The location information was acquired from a satellite navigation receiver (Furuno satellite compass SC-30, GPS receiver) at two second interval.||Navigation||2017-043-FA_nav (Navigation data collectd aboard the R/V Auk on Stellwagen Bank (Geographic, WGS 84, XLSX and CSV formats).)|
|Nikon 7100 digital camera||A Nikon 7100 camera was used to take photos of the sediment sample in the grab sampler to document the texture of the seabed surface, the degree of disturbance during sampling, biological features such as worm tubes, and to estimate the volume of sediment collected.||Photo||2017-043-FA_SampleImages (Grab sample still images collected aboard the R/V Auk on Stellwagen Bank (JPEG image format. EXIF headers have been added to include navigation and other meta tags).)|
|SBE 19plus V2 SeaCAT Profiler CTD||These data were collected with a Sea-Bird CTD (conductivity, temperature, depth) instrument - a SBE 19plus SeaCAT Profiler CTD. In addition to the CTD water column profiling, the CTD is equipped with auxiliary sensors to measure fluorescence and turbidity. This instrument was deployed on the USGS SEABed Observation and Sampling System (SEABOSS). The CTD is mounted horizontally on the SEABOSS frame and its maximum depth is approximately 1 meter above the seabed.||CTD|
|2017-043-FA_CTD (Conductivity-temperature-depth data collected aboard the R/V Auk on Stellwagen Bank (text files).)|