Field Activity 2017-044-FA

Identifier 2017-044-FA
Purpose Collect seabed sediment samples and seabed imagery for geological mapping project
Location Stellwagen Bank NMS
Summary 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 57; total CTD casts 57; total sediment samples 49; total video drifts (3 to 13 min, 0.8 to 3.1 gigabytes) 57; total seabed images 114; total sediment sample images 101.
Info derived Sediment samples and seabed imagery for geological mapping
Comments Travel to and from Scituate, MA for day-cruises to Stellwagen Bank. CTD required as for previous cruises. Load Auk on Fri Aug 8 in Scituate, MA
Projects
Platform
Length: 50 feet; Beam: 20 feet.
Itinerary
Start Scituate, MA 2017-09-12
End Scituate, MA 2017-09-14
Days in the field 3
Bounds
West -70.5
East -70
North 42.5
South 42

Personnel

Organization
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators Page C Valentine
Crew members
Dann S Blackwood
Scientist, Staff
Information specialist(s)
Dann S Blackwood
Specialist, Information
Affiliate principal Dr. David Wylie, SBNMS

Data types and categories

Data category: Environmental Data, Imagery, Location-Elevation, Sampling
Data type: CTD, Photo, Video, Navigation, Geology, Fluorescence, Turbidity

Documents: Notes and log books

Name Description
Cruise log Acquisition and observation logs for seabed video and sediment samples collected aboard the R/V Auk on Stellwagen Bank.

Equipment used

Equipment Usage description Data types Datasets
SBE 19plus V2 SeaCAT Profiler CTD In addition to the CTD water column profiling, the CTD is equipped with auxiliary sensors to measure fluorescence and turbidity. The instruments were mounted on the SEABOSS frame. CTD, Fluorescence, Turbidity 1
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. Surveys (biological), Experiments (biological), Species ID, Photo, Video, Geology, Biology 2
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 1
Furuno satellite compass SC-30 The location information for stations was acquired from a satellite navigation receiver (Furuno satellite compass SC-30, GPS receiver) at two second intervals. Navigation 1
GoPro camera Seabed video images were collected using a GoPro digital video camera mounted on SEABOSS to provide ground-truth information for geophysical datasets and are used in seabed interpretations. Frame-grab images were extracted from the video. Photo, Video 2

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
2017-044-FA_CTD SBE 19plus V2 SeaCAT Profiler CTD Conductivity-temperature-depth data, along with fluorescence and turbidity data were collected aboard the R/V Auk on Stellwagen Bank (text files). Page C Valentine
2017-044-FA_sedsamples SeaBOSS Location and analyses of sediment samples collected aboard the R/V Auk on Stellwagen Bank (Geographic, WGS 84, point shapefile, XLSX and CSV formats). Page C Valentine
2017-044-FA_station_summary SeaBOSS Station and data summary for data collected aboard the R/V Auk on Stellwagen Bank (Geographic, WGS 84, point shapefile, XLSX and CSV formats) Page C Valentine
2017-044-FA_SampleImages Nikon 7100 digital camera 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). Page C Valentine
2017-044-FA_nav Furuno satellite compass SC-30 Navigation data collected aboard the R/V Auk on Stellwagen Bank (Geographic, WGS 84, XLSX and CSV formats). Page C Valentine
2017-044-FA_SeabedImages GoPro camera 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). Page C Valentine
2017-044-FA_video_driftlines GoPro camera Video transects of the sea floor collected aboard the R/V Auk on Stellwagen Bank (Geographic, WGS 84, polyline shapefile format). Page C Valentine

Publications

Samples collected during this field activity