Page C. Valentine
2019
Station and data summary for data collected on Stellwagen Bank on U.S. Geological Survey field activity 2017-009-FA, aboard the R/V Auk, Jan. 30, 2017
1.0
tabular digital data
data release
DOI:10.5066/P9THIZBB
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.5066/P9THIZBB
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-009-FA/
Page C. Valentine
VeeAnn A. Cross
2019
Sea Floor Sediment Samples, Seabed Imagery, and CTD Water Column Data Collected on Stellwagen Bank in January 2017, U.S. Geological Survey Field Activity 2017-009-FA
1.0
data release
DOI:10.5066/P9THIZBB
Reston, VA
U.S. Geological Survey
Suggested citation: Valentine, P.C., and Cross, V.A., 2019, Sea floor sediment samples, seabed imagery, and CTD water column data collected on Stellwagen Bank in January 2017, U.S. Geological Survey Field Activity 2017-009-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9THIZBB .
https://doi.org/10.5066/P9THIZBB
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-009-FA/
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 13 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 measurements of water column properties.
The record of data acquired at each station provides water depths, times, and coordinates of video imagery and samples collected at each station to aid in the interpretation and mapping of seabed substrate types. This data file indicates what data are available for the interpretation at each station.
Additional information regarding the field activity can be obtained from https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-009-FA .
20170130
ground condition of when data were collected
None planned
-70.397960
-70.228660
42.195030
42.129820
None
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
Woods Hole Coastal and Marine Science Center
WHCMSC
stations
navigation
ISO 19115 Topic Category
oceans
location
USGS Thesaurus
field monitoring stations
videos
marine geology
CTD measurement
field activity logs
Marine Realms Information Bank (MRIB) keywords
marine geology
oceanographic observations
video observation
sampling
None
North America
United States
Massachusetts
Atlantic Ocean
Stellwagen Bank
Stellwagen Bank National Marine Sanctuary
SBNMS
Massachusetts Bay
None.
Not to be used for navigation.
U.S. Geological Survey
Page C. Valentine
Research Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
(508) 548-8700 x2239
(508) 457-2310
pvalentine@usgs.gov
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-009-FA/data/samples/2017-009-FA_station_data_summary_browse.jpg
Browse graphic showing the station locations.
JPEG
D.S. Blackwood
K.F. Parolski
2001
Seabed observation and sampling system
Sea Technology
v. 42, no. 2, p.39-43
P. Valentine
D. Blackwood
K. Parolski
2000
Seabed observation and sampling system
U.S. Geological Survey Fact Sheet
FS-142-00
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/fs/fs142-00/
L.J. Poppe
K.Y. McMullen
S.J. Williams
V.F. Paskevich
2014
USGS east-coast sediment analysis: Procedures, database, and GIS data
3.0
Open-File Report
2005-1001
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2005/1001/
The same information was recorded for each station occupied. The locations (latitude and longitude values) are based on information recorded in the cruise log book and later adjusted by reference to the data recorded in the GPS navigation file. Four stations were also occupied as plankton tow stations, with no SEABOSS deployment - therefore no samples, video, seabed images, or sample images. These stations have "PT" in the station name (4573PT, 4574PT, 4575PT and 4576PT).
These station locations and data collection information represent all the information pertinent to the 2017-009-FA field activity.
The location information for stations was acquired from a satellite navigation receiver (Furuno satellite compass SC-30, GPS receiver) at two second intervals with a horizontal accuracy of 10 m. The navigation antenna is located 5.3 m forward of the SEABOSS deployment location. This offset was not accounted for in the navigation acquisition (navigation fixes represent antenna location).
Water depth was determined using a Simrad ES60, 120 kHz, single beam echosounder using a 120-25 transducer, which detects the seabed to a depth of 800 m. Depth values were rounded to the nearest meter to account for ship motion.
Sediment sampling methods:
>
As a part of the process of mapping the sea floor, the USGS developed the SEABed Observation and Sampling System (SEABOSS) to collect samples and video and photographic images of the seabed to aid in the interpretation of seabed sonar imagery. A modified Van Veen sediment grab sampler is mounted in the center of the SEABOSS frame, which ensures the sampler is properly oriented on the seabed when a sample is collected. Before deployment, the sampler bucket’s jaws are opened by collapsing the extended arms to a near-horizontal position and locking them in place with two catches. The sampler operates passively to sample the seabed; it is not spring loaded.
To collect a sediment sample, the SEABOSS frame was lowered gently onto the seabed, reducing tension on the cable, which caused the two locking catches to be automatically released by gravity. As the cable was retrieved, the grab sampler’s arms were pulled upward, closing the bucket around the sediment, and the SEABOSS was lifted off the seabed.
>
The SEABOSS was retrieved and set upon a wooden platform that kept the sampler bucket and camera systems above the deck. The sampler’s arms were held in the upright position manually or by tension on the cable, the two doors on the upper side of the bucket were opened, and the sediment was removed. For this project, the upper 2 cm of sediment, representing the surface of the seabed, were removed with a rectangular shovel 2-cm deep and stored in a plastic bag for grain-size analysis. The remaining sediment was dumped into a tray on the deck below the sampler and discarded, after which the sampler was washed in preparation for sampling at the next site. Further information on the SEABOSS can be found in Valentine and others (2000).
>
Grain-size analyses of the sediment samples were performed at the USGS Woods Hole Coastal and Marine Science Center in Woods Hole, Massachusetts, by using a standard suite of analytical methods (Poppe and others, 2014). This laboratory has been in operation since 1963 and has analyzed many thousands of sediment samples collected by the USGS in New England.
>
Video methods and data availability
>
Seabed video images were collected using two battery-operated, high-definition (1920 x 1080 pixels) GoPro digital video cameras mounted on the USGS SEABed Observation and Sampling System (SEABOSS). The SEABOSS system also had a Seaviewer, high-definition (1920 x 720 pixels), digital camera attached to it with a live feed to the surface. It was mounted a little higher on the frame and was used to observe obstacles, like gill nets and lobster gear, in order to avoid entanglement. In case of camera failure, the additional cameras provided backup video. 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. Lighting was provided by two, battery-operated Keldan LED video lights. Each light provided a light flux of up to 9000 lumens at a correlated color temperature of 5000 kelvins. Two parallel red lasers mounted 20 centimeters apart provided a scale in the video images.
>
Video imagery includes the launch and recovery of the SEABOSS, transit through the water column, and the drift over the seabed. The duration of individual video files ranges from 6 to 12 minutes. Video files range in size from 1.4 to 2.7 gigabytes. These video files are not part of this data release.
>
The position (lat/lon) and time of the start of the video drift was recorded (from the navigation receiver) by hand in the log book at the time of the deployment of the SEABOSS, when it reached the seabed, when a grab sample was attempted, and when it left the seabed. Latitude and longitude positions recorded by hand in the log book were later adjusted by reference to the data recorded in the GPS navigation file. Video was recorded during the descent through the water column (1-2 minutes), during the drift over the seabed, and during the ascent to the surface. The position (lat/lon) of the end of the video drift was recorded at the beginning of the ascent through the water column.
>
Photos:
>
No still photos of the seabed were acquired during this field activity. Video frame grabs were recorded to show typical images of the seabed. These images are available from the Larger Work citation.
>
The station position (lat/lon) represents the location of the sediment sample (if collected), which usually occurred at the end of the video drift. If a sediment sample was not collected, the station position represents the end of the video drift.
>
Water depth was determined using a Simrad ES60, 120 kHz, single beam echosounder using a 120-25 transducer, which detects the seabed to a depth of 800 m. Depth values (from the echo sounder monitor) and position (lat/lon) values (from the navigation receiver) were recorded in a log book at the time of deployment of the Seaboss. Depth values were rounded to the nearest meter to account for ship motion.
2017
U.S. Geological Survey
Page C. Valentine
Research Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
(508) 548-8700 x2239
(508) 457-2310
pvalentine@usgs.gov
This information was entered into an Excel (2016) spreadsheet, with a column for each piece of information as described in the entity and attribute section of the metadata. The first row is an explanation header, the second row contains descriptive column headers, and the third row contains brief column headers that are compatible with importing the data into a GIS.
2017
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
The spreadsheet was opened in Excel (2016). The first row (the explanation header) and the second row (descriptive column headers) were deleted and the third row (brief column headers that are compatible with importing the data into a GIS) was retained. Then the spreadsheet was exported as an MS-DOS CSV.
2019
U.S. Geological Survey
Page C. Valentine
Research Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
(508) 548-8700 x2239
(508) 457-2310
pvalentine@usgs.gov
Using ArcGIS 10.3.1, the CSV file was converted to a shapefile within ArcMap using File - Add Data - Add XY data. The CSV file was selected, with the x-coordinate set to STA_LON and the y-coordinate set to STA_LAT. The coordinate system of the input coordinates was set to the geographic coordinate system GCS_WGS_1984. Once the event theme was added to ArcMap, the data were then converted to a shapefile by right-clicking on the event theme - Data - Export Data. All of the features were exported using the layer's source data for the coordinate system. The output shapefile was set to 2017-009-FA_station_data_summary.shp.
2019
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Point
Point
17
0.000001
0.000001
Decimal degrees
D_WGS_1984
WGS_1984
6378137.000000
298.257224
cruise station and data summary in Excel spreadsheet and CSV format
The Excel spreadsheet has a header (in row 1) explaining the columns of information, row 2 has the header names, and row 3 has header names that are appropriate for incorporation into a GIS (shorter names, no punctuation). The spreadsheet gives basic station information (location, cruise, occupation date and time), as well as additional information indicating what data were collected at each location. The labels below are the CSV row headers with the first part of the attribute definition the longer Excel header on row 2 of the Excel spreadsheet.
U.S. Geological Survey
FIELD_NO
USGS station: Sample name or number as assigned in the field by the Chief Scientist.
U.S. Geological Survey
Character set. Although numeric, stations could have a decimal number indicating a reoccupation of a station. The presence of "PT" as part of the station name indicates a plankton tow.
DEPTH_M
Water depth, m: Depth in meters of the station based on the ship echosounder. Recorded in the log book at the time of deployment of the SEABOSS. The values were rounded to the nearest meter to account for ship motion.
U.S. Geological Survey
25
64
meters
VESSEL
Vessel name: The name of the ship that the field activity used for the cruise.
U.S. Geological Survey
Character string.
CRUISE_ID
WHCMSC field activity number: Name or number of cruise on which sample collected. The cruise identifier is in the format YYYY-XXX where YYYY is the survey year, and XXX is the survey number of that year.
U.S. Geological Survey
Character string.
UTC_DATE
Date, UTC: The date of the row of data collection based on UTC (coordinated universal time) time. In the Excel spreadsheet, the date has the format of D-M-YYYY where DD is the numeric day, M is the month abbreviation, and YYYY is the year. The date is based on the deployment of the SEABOSS.
U.S. Geological Survey
Character string.
UTC_JD
Julian Day, UTC: Julian day is the integer number representing the interval of time in days since January 1 of the year of collection. Based on the date in UTC time at the time of deployment of the SEABOSS.
U.S. Geological Survey
Text field presented as a number.
UTC_JDTIME
Station occupation date and time, DDD:HH:MM:SS, UTC: Station occupation date and time with Julian day and time in UTC. The format is DDD:HH:MM:SS where DDD is the Julian day, HH is hour, MM is minutes, and SS is seconds. Julian day is the integer number representing the interval of time in days since January 1 of the year of collection. This time corresponds to when the sediment sample was collected (if one was collected). If a sediment sample was not collected, this time represents the end of the video drift.
U.S. Geological Survey
Text field presented as a number.
TIMEZONE
Study area time zone: The time zone the study area falls in.
U.S. Geological Survey
EST
Eastern Standard Time. To derive EST, subtract 5 hours from the UTC time.
U.S. Geological Survey
STA_LAT
Station location, Lat N, decimal degrees: Latitude coordinate of the station, in decimal-degrees, of station location. North latitude recorded as positive values. The position represents the location of the sediment sample (if collected). If a sediment sample was not collected, the position represents the end of the video drift.
U.S. Geological Survey
42.12982
42.19503
decimal degrees
STA_LON
Station location, Lon W, decimal degrees: Longitude coordinate of the station, in decimal degrees, of station location. West longitude is recorded as negative values. The position represents the location of the sediment sample (if collected). If a sediment sample was not collected, the position represents the end of the video drift.
U.S. Geological Survey
-70.39796
-70.22866
decimal degrees
STIME_VID
Video drift start time, UTC, HHMMSS: Start time of the video drift when the SEABOSS reached the seabed, in UTC time in HHMMSS. In the case of plankton tow stations, this refers to the start time of the plankton tow.
U.S. Geological Survey
Text field presented as a number.
ETIME_VID
Video drift end time, UTC, HHMMSS: End time of the video drift when the SEABOSS left the seabed, in UTC time in HHMMSS. In the case of plankton tow stations, this refers to the end time of the plankton tow. A value of 9999 represents no data.
U.S. Geological Survey
Text field presented as a number.
SLAT_VID
Video drift start Lat N, decimal degrees: Latitude coordinate of the start of the video drift, in decimal-degrees, of station location. North latitude recorded as positive values. In the case of plankton tow stations, this refers to the start latitude of the plankton tow.
U.S. Geological Survey
42.13064
42.19557
decimal degrees
SLON_VID
Video drift start Lon W, decimal degrees: Longitude coordinate of the start of the video drift, in decimal degrees, of station location. West longitude is recorded as negative values. In the case of plankton tow stations, this refers to the start longitude of the plankton tow.
U.S. Geological Survey
-70.39805
-70.22915
decimal degrees
ELAT_VID
Video drift end Lat N, decimal degrees: Latitude coordinate of the end of the video drift, in decimal-degrees. North latitude recorded as positive values. In the case of plankton tow stations, this refers to the end latitude of the plankton tow. A value of 9999 represents no data.
U.S. Geological Survey
42.12941
42.19844
decimal degrees
ELON_VID
Video drift end Lon W, decimal degrees: Longitude coordinate of the end of the video drift, in decimal degrees, of station location. West longitude is recorded as negative values. Video acquired while sampling only. In the case of plankton tow stations, this refers to the end longitude of the plankton tow. A value of 9999 represents no data.
U.S. Geological Survey
-70.39784
-70.22861
decimal degrees
SAMP_LAT
Sediment sample location, Lat N, decimal degrees: Latitude coordinate of the sediment sample location, in decimal-degrees, of station location. North latitude recorded as positive values. A value of 9999 indicates no sample location because no sample was collected.
U.S. Geological Survey
42.12982
42.19503
decimal degrees
SAMP_LON
Sediment sample location, Lon W, decimal degrees: Longitude coordinate of the sediment sample location, in decimal degrees, of station location. West longitude is recorded as negative values. A value of 9999 indicates no sample location because no sample was collected.
U.S. Geological Survey
-70.39796
-70.22866
decimal degrees
VIDEO
Video imagery collected: The value of this attribute indicates if seabed video was recorded at the station. The value "y" indicates that video was recorded, "n" indicates no video was recorded.
U.S. Geological Survey
Boolean character set.
VIDEOFG
Video frame grabs: The value of this attribute indicates if a seabed video frame grab was acquired at the station. The value "y" indicates that a frame was recorded, "n" indicates no frame was recorded.
U.S. Geological Survey
Boolean character set.
CTD_PR
CTD profile data collected: The value of this attribute indicates if a CTD cast was taken and data collected. The value "y" indicates that a CTD cast and data were collected, "n" indicates no CTD cast was taken.
U.S. Geological Survey
Boolean character set.
SEDSAMP
Sediment sample collected: The value of this attribute indicates if a seabed sample was taken at the station. The value "y" indicates that a sample was taken, "n" indicates no sample was taken.
U.S. Geological Survey
Boolean character set.
SEDSAMPPH
Sediment sample photo: Photo of sediment sample surface in the SEABOSS grab sampler. The value of this attribute indicates if a photo was taken at the station. The value "y" indicates that a photo was taken, "n" indicates no photo was taken.
U.S. Geological Survey
Boolean character set.
AREA
Region: General geographic area of data collection. This can be an abbreviations - such as SBNMS for Stellwagen Bank National Marine Sanctuary.
U.S. Geological Survey
Character string.
The attribute label is the abbreviated label that is more compatible with importing the dataset into a GIS. The first part of the attribute definition is the longer label of the column that is in the second row of the Excel spreadsheet.
Additionally, the Excel spreadsheet has the following information in the first row describing the spreadsheet.
[Cruise station and data summary: column A, USGS station number; column B, water depth, meters; column C, vessel name; column D, WHCMSC field activity number; column E, date, UTC; column F, Julian Day, UTC; column G, station occupation date and time, UTC (for Eastern Daylight Time subtract 4 hours; for Eastern Standard Time, subtract 5 hours); column H, study area time zone; column I, station location, latitude north, decimal degrees; column J, station location, longitude west, decimal degrees (station location is the sample location, if collected; otherwise it is the video drift end location); column K, video drift start time, UTC; column L, video drift end time, UTC; column M, start of video drift, latitude north, decimal degrees; column M, start of video drift, longitude west, decimal degrees; column O, end of video drift, latitude north, decimal degrees; column P, end of video drift, longitude west, decimal degrees; column Q, sediment sample location, latitude north, decimal degrees; column R, sediment sample location, longitude west, decimal degrees; column S, video imagery collected; column T, video frame grabs; column U, CTD profile collected; column V, sediment sample collected; column W, sediment sample photos taken; column X, geographic region [abbreviations: DDD, Julian Day; EDT, Eastern Daylight Time; EST, Eastern Standard Time; H, hour; M, minute; S, second; PT, plankton tow; lat, latitude; lon, longitude; WHCMSC, USGS Woods Hole Coastal and Marine Science Center; SBNMS, Stellwagen Bank National Marine Sanctuary; UTC, coordinated universal time (Greenwich Mean Time, ZULU time); y, yes; n, no; 9999, no sample location because no sample collected] Note: Stations 4573PT, 4574PT, 4575PT and 4576PT are plankton tows; time and location were recorded in the log book as a courtesy to a non-USGS scientist sharing the cruise; station location is at start of the plankton tow; tow start and end times and locations are recorded in columns K to P (video start and end times).
U.S. Geological Survey
U.S. Geological Survey
Page C. Valentine
Research Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
(508) 548-8700 x2239
(508) 457-2310
pvalentine@usgs.gov
2017-009-FA_station_summary.zip contains the Excel spreadsheet with the station summary information (2017-009-FA_station_data_summary.xlsx), a CSV file of the same information with a GIS compatible header row (2017-009-FA_station_data_summary.csv), and the shapefile created from the CSV file (2017-009-FA_station_data_summary.shp) and the other files associated with a shapefile. The zip file also contains the browse graphic (2017-009-FA_station_data_summary_browse.jpg) and the FGDC CSDGM metadata in TXT, XML, and HTML formats.
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
XLSX
Excel 2016
The zip file contains the station summary information in XLSX, CSV, and shapefile format, along with the browse graphic and FGDC CSDGM metadata.
1
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-009-FA/data/samples/2017-009-FA_station_summary.zip
https://doi.org/10.5066/P9THIZBB
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-009-FA/
The first link is to download the data in a zip file. The second and third links are to the landing page of the data. Although the last two links go to the same place, one is the DOI designation of the publication.
CSV
comma-separated values exported from Excel 2010
The zip file contains the station summary information in XLSX, CSV, and shapefile format, along with the browse graphic and FGDC CSDGM metadata.
1
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-009-FA/data/samples/2017-009-FA_station_summary.zip
https://doi.org/10.5066/P9THIZBB
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-009-FA/
The first link is to download the data in a zip file. The second and third links are to the landing page of the data. Although the last two links go to the same place, one is the DOI designation of the publication.
Shapefile
ArcGIS 10.3.1
The zip file contains the station summary information in XLSX, CSV, and shapefile format, along with the browse graphic and FGDC CSDGM metadata.
1
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-009-FA/data/samples/2017-009-FA_station_summary.zip
https://doi.org/10.5066/P9THIZBB
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-009-FA/
The first link is to download the data in a zip file. The second and third links are to the landing page of the data. Although the last two links go to the same place, one is the DOI designation of the publication.
none
The zip file contains data in XLSX and CSV formats. The user must have software capable of uncompressing the zip file and reading the data formats.
20190501
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02556-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998