Metadata:
  Identification_Information:
    Citation:
      Citation_Information:
        Originator: Page C. Valentine
        Publication_Date: 2020
        Title: CTD (conductivity-temperature-depth) data collected on Stellwagen Bank during U.S. Geological Survey field activity 2014-070-FA, aboard the R/V Auk, December 12, 2014
        Edition: 1.0
        Geospatial_Data_Presentation_Form: text file for water column profile
        Series_Information:
          Series_Name: data release
          Issue_Identification: DOI:10.5066/P9HVBS0Q
        Publication_Information:
          Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
          Publisher: U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
        Online_Linkage: https://doi.org/10.5066/P9HVBS0Q
        Online_Linkage: https://cmgds.marine.usgs.gov/data/field-activity-data/2014-070-FA/
        Larger_Work_Citation:
          Citation_Information:
            Originator: Page C. Valentine
            Originator: VeeAnn A. Cross
            Publication_Date: 2020
            Title: Sea-floor sediment samples, seabed imagery, and CTD instrument data collected on Stellwagen Bank in December, 2014, U.S. Geological Survey Field Activity 2014-070-FA
            Edition: 1.0
            Series_Information:
              Series_Name: data release
              Issue_Identification: DOI:10.5066/P9HVBS0Q
            Publication_Information:
              Publication_Place: Reston, VA
              Publisher: U.S. Geological Survey
            Other_Citation_Details: Suggested citation: Valentine, P.C., and Cross, V.A., 2020, Sea-floor sediment samples, seabed imagery, and CTD instrument data collected on Stellwagen Bank in December, 2014, U.S. Geological Survey Field Activity 2014-070-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9HVBS0Q .
            Online_Linkage: https://doi.org/10.5066/P9HVBS0Q
            Online_Linkage: https://cmgds.marine.usgs.gov/data/field-activity-data/2014-070-FA/
    Description:
      Abstract: 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 33 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.
      Purpose: These data are collected to map the seasonal temperature, salinity, density, fluorescence (chlorophyll A), and turbidity configuration of the water column which affect the distribution and availability of plankton and the distribution of fish and invertebrate species.
      Supplemental_Information: Additional information regarding the field activity can be obtained from https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-070-FA.
    Time_Period_of_Content:
      Time_Period_Information:
        Single_Date/Time:
          Calendar_Date: 20141212
      Currentness_Reference: ground condition of when data were collected. There was one day of data collection. December 12, 2014.
    Status:
      Progress: complete
      Maintenance_and_Update_Frequency: None planned
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -70.307690
        East_Bounding_Coordinate: -70.226270
        North_Bounding_Coordinate: 42.195390
        South_Bounding_Coordinate: 42.168120
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: USGS Metadata Identifier
        Theme_Keyword: USGS:02378f47-2170-4fd4-8e2f-5af917aa9838
      Theme:
        Theme_Keyword_Thesaurus: None
        Theme_Keyword: U.S. Geological Survey
        Theme_Keyword: USGS
        Theme_Keyword: Coastal and Marine Hazards and Resources Program
        Theme_Keyword: CMHRP
        Theme_Keyword: Woods Hole Coastal and Marine Science Center
        Theme_Keyword: WHCMSC
        Theme_Keyword: National Oceanic and Atmospheric Administration
        Theme_Keyword: NOAA
        Theme_Keyword: SEABed Observation and Sampling System
        Theme_Keyword: SEABOSS
        Theme_Keyword: CTD
        Theme_Keyword: conductivity
        Theme_Keyword: temperature
        Theme_Keyword: depth
        Theme_Keyword: salinity
        Theme_Keyword: water density
        Theme_Keyword: fluorescence
        Theme_Keyword: turbidity
      Theme:
        Theme_Keyword_Thesaurus: ISO 19115 Topic Category
        Theme_Keyword: oceans
        Theme_Keyword: geoscientificInformation
      Theme:
        Theme_Keyword_Thesaurus: USGS Thesaurus
        Theme_Keyword: marine chemistry
        Theme_Keyword: CTD measurement
        Theme_Keyword: ocean temperature
        Theme_Keyword: ocean salinity
        Theme_Keyword: turbidity
        Theme_Keyword: ocean sciences
      Theme:
        Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
        Theme_Keyword: chemical oceanography
        Theme_Keyword: environmental chemistry
        Theme_Keyword: oceanographic observations
      Place:
        Place_Keyword_Thesaurus: None
        Place_Keyword: North America
        Place_Keyword: United States
        Place_Keyword: Massachusetts
        Place_Keyword: Atlantic Ocean
        Place_Keyword: Stellwagen Bank
        Place_Keyword: Stellwagen Bank National Marine Sanctuary
        Place_Keyword: SBNMS
        Place_Keyword: Massachusetts Bay
    Access_Constraints: None.
    Use_Constraints: Not to be used for navigation.
    Point_of_Contact:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: U.S. Geological Survey
          Contact_Person: Page C. Valentine
        Contact_Position: Research Geologist
        Contact_Address:
          Address_Type: mailing and physical address
          Address: 384 Woods Hole Rd.
          City: Woods Hole
          State_or_Province: MA
          Postal_Code: 02543-1598
          Country: USA
        Contact_Voice_Telephone: (508) 548-8700 x2239
        Contact_Facsimile_Telephone: (508) 457-2310
        Contact_Electronic_Mail_Address: pvalentine@usgs.gov
    Cross_Reference:
      Citation_Information:
        Originator: D.S. Blackwood
        Originator: K.F. Parolski
        Publication_Date: 2001
        Title: Seabed observation and sampling system
        Series_Information:
          Series_Name: Sea Technology
          Issue_Identification: v. 42, no. 2, p.39-43
    Cross_Reference:
      Citation_Information:
        Originator: P. Valentine
        Originator: D. Blackwood
        Originator: K. Parolski
        Publication_Date: 2000
        Title: Seabed observation and sampling system
        Series_Information:
          Series_Name: U.S. Geological Survey Fact Sheet
          Issue_Identification: FS-142-00
        Publication_Information:
          Publication_Place: Reston, VA
          Publisher: U.S. Geological Survey
        Online_Linkage: https://doi.org/10.3133/fs14200
        Online_Linkage: https://pubs.usgs.gov/fs/fs142-00/
    Cross_Reference:
      Citation_Information:
        Originator: Page C. Valentine
        Originator: VeeAnn A. Cross
        Publication_Date: 2019
        Title: 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
        Series_Information:
          Series_Name: data release
          Issue_Identification: DOI:10.5066/P9FWFLPD
        Publication_Information:
          Publication_Place: Reston, VA
          Publisher: U.S. Geological Survey
        Other_Citation_Details: This publication includes the sediment sample analyses information associated with this field activity and 19 other field activities.
        Online_Linkage: https://doi.org/10.5066/P9FWFLPD
        Online_Linkage: https://www.sciencebase.gov/catalog/item/5d95153ee4b0c4f70d10a4f7
  Data_Quality_Information:
    Attribute_Accuracy:
      Attribute_Accuracy_Report: These files represent unedited data acquired from the Sea-Bird CTD that was mounted on the SEABOSS frame. The data were collected during the descent (downcast) of the SEABOSS to the seabed, its drift over the seabed, and its ascent (upcast) to the water surface. The data values presented here have not been edited or modified. The data accuracy is expected to meet the instrument accuracy specifications.
    Logical_Consistency_Report: The filenames correspond to the station names. Therefore, the locations of the casts can be acquired from the station locations in the station data summary file (available from the Larger Work). The naming convention for the CTD casts is staXXXX_ctd_data.txt where XXXX corresponds to the station number.
    Completeness_Report: The Sea-Bird instrument is mounted on the SEABOSS frame. All data (downcast, drift, and upcast) are included. All SEABOSS stations on the cruise have a CTD record. There are a total of 33 CTD data files.
    Positional_Accuracy:
      Horizontal_Positional_Accuracy:
        Horizontal_Positional_Accuracy_Report: Although these files do not contain latitudes and longitudes, that information can be acquired from the related station data summary file (2014-070-FA_station_data_summary available from the Larger Work citation). The CTD downcast is located at the start of the video drift, and the upcast is located at the end of the video drift. 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). The SEABOSS may also drift away from the survey vessel when deployed to the sea floor.
      Vertical_Positional_Accuracy:
        Vertical_Positional_Accuracy_Report: The depth values are based on the instrument's pressure gauge and are relative to the local sea surface. The CTD is mounted horizontally on the SEABOSS frame and its maximum depth is approximately 1 meter above the seabed.
    Lineage:
      Process_Step:
        Process_Description:
          These data were collected with a Sea-Bird CTD (conductivity, temperature, depth) instrument - an SBE19plusV2 SeaCAT Profiler CTD. This instrument was deployed on the USGS SEABed Observation and Sampling System (SEABOSS). See the cross-references for additional information on this system. The SEABOSS is an instrument developed by the USGS to collect samples and video and photographic images of the seabed to aid in the interpretation of seabed sonar imagery. The CTD is mounted horizontally on the SEABOSS frame and its maximum depth is approximately one meter above the seabed. The specifications for the CTD instrument are as follows:
          >
          SBE19plusV2, serial number 01906617 manufactured by Sea-Bird Electronics, Inc.
          >Firmware version: 2.2c
          >Firmware date: 7 December 2009
          >Manufactured date: 29 July 2010
          >Software version: 2.3.0
          >
          Internal sensors:
          >main temperature, serial number 01906617
          >main conductivity, serial number 01906617
          >main pressure, type, strain, serial number 3161799
          >
          External sensors from WET Labs:
          >ECO-FLNTURT CHL, serial number FLNTURT-1798; WET Labs fluorometer, ECO-AFL/FL
          >ECO-FLNTURT TURB, serial number FLNTURT-1798; WET Labs turbidity meter, ECO-NTU
          >
          Configuration:
          >Instrument battery operated; not connected to a conducting cable
          >Profile mode: sampling rate four per second, averaged to provide each data point
          >CTD deployed on the USGS SEABed Observation and Sampling System (SEABOSS)
          >
          Data archive:
          >All data; downcast, drift, and upcast
          >
          The temperature (degrees C) sensor has the following specifications: 
          >measurement range -5 to +35 degrees C; initial accuracy +-0.005; resolution 0.0001; 
          >
          The conductivity (S/m) has the following specifications:
          >
          measurement range 0 to 9 S/m; initial accuracy +- 0.0005; resolution varies: 0.00005 (most oceanic water; resolves 0.4 ppm in salinity) 0.00007 (high salinity water; resolves 0.4 ppm in salinity) 0.00001 (fresh water; resolves 0.1 ppm in salinity)
          >
          The strain gauge pressure:
          >
          measurement range 0 to full scale range: 20/100/350/600/1000/2000/3500/7000; initial accuracy +- 0.1% of full scale range; resolution 0.002% of full scale range.
          >
          The turbidity sensor:
          >wavelength 700 nm; sensitivity 0.01 NTU, rant 0-25 NTU
          >
          Fluorescence sensor:
          >Chlorophyll-a 470 nm EX/695 nm EM; sensitivity 0.2 micro-g/l; range 0-125 micro-g/l Chl
        Process_Date: 2014
        Process_Contact:
          Contact_Information:
            Contact_Organization_Primary:
              Contact_Organization: U.S. Geological Survey
              Contact_Person: Page C. Valentine
            Contact_Position: Research Geologist
            Contact_Address:
              Address_Type: mailing and physical address
              Address: 384 Woods Hole Rd.
              City: Woods Hole
              State_or_Province: MA
              Postal_Code: 02543-1598
              Country: USA
            Contact_Voice_Telephone: (508) 548-8700 x2239
            Contact_Facsimile_Telephone: (508) 457-2310
            Contact_Electronic_Mail_Address: pvalentine@usgs.gov
      Process_Step:
        Process_Description: The Sea-Bird instrument is mounted on the SEABOSS frame. All data (downcast, drift, upcast) are included. At the end of the cruise, the CTD data are downloaded via a laptop using the Sea-Bird software. The latitude and longitude of the start and end of the video drift are available from 2014-070-FA_station_data_summary dataset, available from the Larger Work citation. The station summary data are available in XLSX, CSV, and shapefile formats.
        Process_Date: 2014
        Process_Contact:
          Contact_Information:
            Contact_Organization_Primary:
              Contact_Organization: U.S. Geological Survey
              Contact_Person: Page C. Valentine
            Contact_Position: Research Geologist
            Contact_Address:
              Address_Type: mailing and physical address
              Address: 384 Woods Hole Rd.
              City: Woods Hole
              State_or_Province: MA
              Postal_Code: 02543-1598
              Country: USA
            Contact_Voice_Telephone: (508) 548-8700 x2239
            Contact_Facsimile_Telephone: (508) 457-2310
            Contact_Electronic_Mail_Address: pvalentine@usgs.gov
      Process_Step:
        Process_Description: Added keywords section with USGS persistent identifier as theme keyword.
        Process_Date: 20200908
        Process_Contact:
          Contact_Information:
            Contact_Organization_Primary:
              Contact_Organization: U.S. Geological Survey
              Contact_Person: VeeAnn A. Cross
            Contact_Position: Marine Geologist
            Contact_Address:
              Address_Type: Mailing and Physical
              Address: 384 Woods Hole Road
              City: Woods Hole
              State_or_Province: MA
              Postal_Code: 02543-1598
            Contact_Voice_Telephone: 508-548-8700 x2251
            Contact_Facsimile_Telephone: 508-457-2310
            Contact_Electronic_Mail_Address: vatnipp@usgs.gov
  Spatial_Reference_Information:
    Horizontal_Coordinate_System_Definition:
      Geographic:
        Latitude_Resolution: 0.00001
        Longitude_Resolution: 0.00001
        Geographic_Coordinate_Units: Decimal degrees
      Geodetic_Model:
        Horizontal_Datum_Name: D_WGS_1984
        Ellipsoid_Name: WGS_1984
        Semi-major_Axis: 6378137.000000
        Denominator_of_Flattening_Ratio: 298.257224
    Vertical_Coordinate_System_Definition:
      Depth_System_Definition:
        Depth_Datum_Name: local surface
        Depth_Resolution: 0.001
        Depth_Distance_Units: meters
        Depth_Encoding_Method: Implicit coordinate
  Entity_and_Attribute_Information:
    Detailed_Description:
      Entity_Type:
        Entity_Type_Label: Sea-Bird CTD
        Entity_Type_Definition: The data from each station are included in an ASCII text file with an eleven row header that gives the station number and the output format of the data - what information is in each column. The remaining rows (starting at row 12) are columns of measured values that are space-delimited and correspond to the columns listed in the header.
        Entity_Type_Definition_Source: Sea-Bird Electronics
      Attribute:
        Attribute_Label: salt water depth, meter (0.000)
        Attribute_Definition: Calculated value involving pressure, water density and compressibility as well as the strength of the local gravity field. Units are meters.
        Attribute_Definition_Source: Sea-Bird Electronics
        Attribute_Domain_Values:
          Unrepresentable_Domain: Although this is a numeric value, the data value range for the dataset has not been evaluated.
      Attribute:
        Attribute_Label: water temperature (standard ITS-90), deg C (0.0000)
        Attribute_Definition: Temperature directly measured by the temperature-sensing instrument (thermistor). Units are degrees Celsius.
        Attribute_Definition_Source: Sea-Bird Electronics
        Attribute_Domain_Values:
          Unrepresentable_Domain: Although this is a numeric value, the data value range for the dataset has not been evaluated.
      Attribute:
        Attribute_Label: salinity, practical salinity units (PSU) (0.0000)
        Attribute_Definition: Calculated value derived from the measured properties (conductivity, temperature and pressure) of the instrument. Units are practical salinity units.
        Attribute_Definition_Source: Sea-Bird Electronics
        Attribute_Domain_Values:
          Unrepresentable_Domain: Although this is a numeric value, the data value range for the dataset has not been evaluated.
      Attribute:
        Attribute_Label: water density, sigma-t, kilograms per cubic meter (0.0000)
        Attribute_Definition: Calculated value derived from the measured properties (conductivity, temperature and pressure) of the instrument. Units are kilograms per cubic meter.
        Attribute_Definition_Source: Sea-Bird Electronics
        Attribute_Domain_Values:
          Unrepresentable_Domain: Although this is a numeric value, the data value range for the dataset has not been evaluated.
      Attribute:
        Attribute_Label: fluorescence, milligrams per cubic meter (0.0000)
        Attribute_Definition: Fluorescence is a measurement of chlorophyll A concentration in a volume of seawater. Units are milligrams per cubic meter.
        Attribute_Definition_Source: Sea-Bird Electronics
        Attribute_Domain_Values:
          Unrepresentable_Domain: Although this is a numeric value, the data value range for the dataset has not been evaluated.
      Attribute:
        Attribute_Label: turbidity, nephelometric turbidity units (NTU) (0.0000)
        Attribute_Definition: Turbidity is a measurement of particles in a volume of seawater. Units are nephelometric turbidity units.
        Attribute_Definition_Source: Sea-Bird Electronics
        Attribute_Domain_Values:
          Unrepresentable_Domain: Although this is a numeric value, the data value range for the dataset has not been evaluated.
      Attribute:
        Attribute_Label: if data flagged, indicates error in data collection
        Attribute_Definition: System method of indicating erroneous or bad data.
        Attribute_Definition_Source: Sea-Bird Electronics
        Attribute_Domain_Values:
          Unrepresentable_Domain: A value other than zero indicates an error in data collection
    Overview_Description:
      Entity_and_Attribute_Overview:
        The following is a sample header and a few rows of the data:
        >
        >Sta 4246
        >
        >Output data format
        >Column 1, salt water depth, meter (0.000)
        >Column 2, water temperature (standard ITS-90), deg C (0.0000)
        >Column 3, salinity, practical salinity units (PSU) (0.0000)
        >Column 4, water density, sigma-t, kilograms per cubic meter (0.0000)
        >Column 5, fluorescence, milligrams per cubic meter (0.0000)
        >Column 6, turbidity, nephelometric turbidity units (NTU) (0.0000)
        >Column 7, if data flagged, indicates error in data collection
        >
        >-0.085     3.4944     0.0009    -0.0262     0.0337     0.1171  0.000e+00
        >-0.088     3.4882     0.0008    -0.0263    -0.0258     0.1049  0.000e+00
        >-0.088     3.4889     0.0009    -0.0263     0.0077     0.1106  0.000e+00
        >-0.089     3.4770     0.0009    -0.0264     0.0283     0.0950  0.000e+00
        >-0.091     3.4604     0.0008    -0.0265     0.0398     0.1060  0.000e+00
        >-0.091     3.4514     0.0008    -0.0266     0.0520     0.1018  0.000e+00
        >-0.094     3.4474     0.0008    -0.0267     0.0192     0.1072  0.000e+00
        >
        If visible in the sample above, the presence of the ">" character is for formatting the metadata only. That character does not actually occur in the data.

        The zeros associated with each column definition indicate the number of decimal places of the recorded values.
      Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
  Distribution_Information:
    Distributor:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: U.S. Geological Survey
          Contact_Person: Page C. Valentine
        Contact_Position: Research Geologist
        Contact_Address:
          Address_Type: mailing and physical address
          Address: 384 Woods Hole Rd.
          City: Woods Hole
          State_or_Province: MA
          Postal_Code: 02543-1598
          Country: USA
        Contact_Voice_Telephone: (508) 548-8700 x2239
        Contact_Facsimile_Telephone: (508) 457-2310
        Contact_Electronic_Mail_Address: pvalentine@usgs.gov
    Resource_Description: 2014-070-FA_CTD.zip contains the 33 CTD data files and the FGDC CSDGM metadata in TXT, XML, and HTML formats.
    Distribution_Liability: 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.
    Standard_Order_Process:
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: TEXT
          Format_Information_Content: The ZIP file contains the CTD cast data and the associated FGDC CSDGM metadata.
          Transfer_Size: 1
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: https://cmgds.marine.usgs.gov/data/field-activity-data/2014-070-FA/data/chemistry/2014-070-FA_CTD.zip
                Network_Resource_Name: https://doi.org/10.5066/P9HVBS0Q
                Network_Resource_Name: https://cmgds.marine.usgs.gov/data/field-activity-data/2014-070-FA/
            Access_Instructions: 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. The last two links go to the same place; one is the DOI designation of the publication.
      Fees: none
    Technical_Prerequisites: The ZIP file contains CTD data in text format. The user must have software capable of uncompressing the ZIP file and using the data files.
  Metadata_Reference_Information:
    Metadata_Date: 20240318
    Metadata_Contact:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: U.S. Geological Survey
          Contact_Person: VeeAnn A. Cross
        Contact_Position: Marine Geologist
        Contact_Address:
          Address_Type: mailing and physical address
          Address: 384 Woods Hole Rd.
          City: Woods Hole
          State_or_Province: MA
          Postal_Code: 02543-1598
        Contact_Voice_Telephone: 508-548-8700 x2251
        Contact_Facsimile_Telephone: 508-457-2310
        Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov
        Contact_Instructions: The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318)
    Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
    Metadata_Standard_Version: FGDC-STD-001-1998