Sediment sample locations and grain size results from samples collected in Barnegat Bay, NJ by the U.S. Geological Survey during 3 surveys in 2012 and 2013 (Esri point shapefile, Geographic, WGS 84)

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Frequently anticipated questions:

What does this data set describe?

Title:
Sediment sample locations and grain size results from samples collected in Barnegat Bay, NJ by the U.S. Geological Survey during 3 surveys in 2012 and 2013 (Esri point shapefile, Geographic, WGS 84)
Abstract:
Water quality in the Barnegat Bay-Little Egg Harbor estuary along the New Jersey coast is the focus of a multidisciplinary research project begun in 2011 by the U.S. Geological Survey (USGS) in partnership with the New Jersey Department of Environmental Protection. This narrow estuary is the drainage for the Barnegat Watershed and flushed by just three inlets connecting it to the Atlantic Ocean, is experiencing degraded water quality, algal blooms, loss of seagrass, and increases in oxygen -depletion events, seaweed, stinging nettles, and brown tide. The scale of the estuary and the scope of the problems within it necessitate a multidisciplinary approach that includes characterizing its physical characteristics (for example, depth, magnitude and direction of tidal currents, distribution of seafloor and subseafloor sediment) and modeling how the physical characteristics interact to affect the estuary's water quality. Scientists from USGS Coastal and Marine Geology Program offices in Woods Hole, Massachusetts, and St. Petersburg, Florida, began mapping the seafloor of the Barnegat Bay-Little Egg Harbor estuary in November 2011 and completed in September 2013. With funding from the New Jersey Department of Environmental Protection and logistical support from the USGS New Jersey Water Science Center, they collected data with a suite of geophysical tools, including swath bathymetric sonar for measuring seafloor depth, a sidescan sonar for collecting acoustic-backscatter data (which provides information about seafloor texture and sediment type), subbottom profiler for imaging sediment layers beneath the floor of the estuary, and sediment samples with bottom photographs for ground validation of the acoustic data. 2011-041-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2011-041-FA 2012-003-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2012-003-FA 2013-014-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2013-014-FA 2013-030-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2013-030-FA
  1. How might this data set be cited?
    U.S. Geological Survey, 2015, Sediment sample locations and grain size results from samples collected in Barnegat Bay, NJ by the U.S. Geological Survey during 3 surveys in 2012 and 2013 (Esri point shapefile, Geographic, WGS 84): Data Series 937, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Andrews, Brian D., Miselis, Jennifer L., Danforth, William W., Irwin, Barry J., Worley, Charles R., Bergeron, Emile M., and Blackwood, Dann S., 2015, Marine geophysical data collected in a shallow back-barrier estuary: Barnegat Bay, New Jersey: Data Series 937, U.S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -74.305417
    East_Bounding_Coordinate: -74.049976
    North_Bounding_Coordinate: 40.059478
    South_Bounding_Coordinate: 39.510484
  3. What does it look like?
    BarnBaySedSamples.jpg (JPEG)
    Thumbnail image of sediment sample locations collected within Barnegat Bay, NJ. The file is located in the compressed zip file.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 10-Apr-2012
    Ending_Date: 18-Sep-2013
    Currentness_Reference:
    ground condition of SEABOSS sampling dates at the end of three surveys, 20120410-20120412, 20130328-20130329, 20130918-20130918. No sediment samples were collected during 2011-041-FA.
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: vector digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • Entity point (186)
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.
  7. How does the data set describe geographic features?
    BarnBaySedSamples
    sediment samples collected in Barnegat Bay New Jersey (Source: USGS)
    FID
    Internal feature number. (Source: Esri) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: Esri) Coordinates defining the features.
    GROUP
    Number assigned to data based on source. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Formal codeset
    Codeset Name:3 = Samples analyzed by the USGS Woods Hole Science Center Sediment Laboratory
    Codeset Source:USGS
    DB_ID
    Unique identification number generated in the sedimentation laboratory of the USGS's Woods Hole Coastal and Marine Science Center. For samples analyzed after 1980 this identifier consists of 2 characters and 3 numerics (e.g. AS114). For samples analyzed prior to 1980, this identifier consists of 4 numerics possibly followed by as many as 2 characters. (Source: USGS East Coast Sediment Texture Database data dictionary) Character string
    FIELD_NO
    Sample name or number as assigned in the field by the Chief Scientist (Source: USGS East Coast Sediment Texture Database data dictionary) Character string
    PROJECT
    Name of project or project number under which samples were taken or data generated; sometimes project name indicates a more specific area. (Source: USGS) Character string
    CRUISE_ID
    Name or number of cruise on which sample collected. Historically cruise identifiers were a combination of ship name, year of cruise and cruise leg. In more recent years, cruise identifier is a sequential serial number assigned to field activities within a specific year (in the format YYYY-XXX where YYYY is the year and XXX is the cruise number within that year) (Source: USGS East Coast Sediment Texture Database data dictionary) Character string
    LONGITUDE
    Longitude coordinate, in decimal degrees, of sample location. West longitude is recorded as negative values. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-74.305417
    Maximum:-74.049976
    Units:Decimal Degrees
    Resolution:0.000001
    LATITUDE
    Latitude coordinate, in decimal-degrees, of sample location. South latitude recorded as negative values (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:39.510484
    Maximum:40.059478
    Units:Decimal Degrees
    Resolution:0.000001
    CONTACT
    Name of Principal Investigator or Chief Scientist responsible for data collection (usually first initial and last name) (Source: USGS East Coast Sediment Texture Database data dictionary) Character string
    AREA
    General geographic area of data collection. Name is general enough to easily locate area on a state map. (Source: USGS East Coast Sediment Texture Database data dictionary) Character string
    DEPTH_M
    Measured depth, in meters, of water overlying sediment at sample time. Depth value is not corrected for tides. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:1.04
    Maximum:13.93
    Units:meters
    Resolution:0.01
    T_DEPTH
    Top depth of sample, in centimeters, below the sediment-water interface. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0
    Maximum:0
    Units:centimeters
    Resolution:0.1
    B_DEPTH
    Bottom depth of sample, in centimeters, below the sediment-water interface. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:2
    Maximum:2
    Units:centimeters
    Resolution:0.1
    DEVICE
    Device used to collect the sample. (Source: USGS East Coast Sediment Texture Database data dictionary) Character string- data were collected with the Van Veen grab sampler on the Mini-SEABOSS
    MONTH_COLL
    Calendar month sample collected. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:3
    Maximum:9
    Units:Months
    Resolution:1
    DAY_COLL
    Calendar day sample collected. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:10
    Maximum:29
    Units:Days
    Resolution:1
    YEAR_COLL
    Calendar year sample collected. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:2012
    Maximum:2013
    Units:Year
    Resolution:1
    MONTH_ANAL
    Calendar month sample analyzed. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:4
    Maximum:10
    Units:Month
    Resolution:1
    DAY_ANAL
    Calendar day sample analyzed. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:7
    Maximum:29
    Units:Day
    Resolution:1
    YEAR_ANAL
    Calendar year sample analyzed. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:2012
    Maximum:2013
    Units:Year
    Resolution:1
    WEIGHT
    Weight of dry sample in grams. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:5.14
    Maximum:219.47
    Units:grams
    Resolution:0.0001
    GRAVEL_PCT
    Gravel content in percent dry weight of the sample (particles with nominal diameters greater than 2 mm; -1 phi and larger. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0
    Maximum:71.97
    Units:percent
    Resolution:0.01
    SAND_PCT
    Sand content in percent dry weight of sample (particles with nominal diameters less than 2 mm but greater than or equal to 0.0625 mm; 0 phi through 4 phi). (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.86
    Maximum:99.65
    Units:percent
    Resolution:0.01
    SILT_PCT
    Silt content in percent dry weight of the sample (particles with nominal diameters less than 0.0625 mm but greater than or equal to 0.004 mm; 5 phi through 8 phi, inclusive). (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.13
    Maximum:86.9
    Units:percent
    Resolution:0.01
    CLAY_PCT
    Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; less than 8 phi). (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.07
    Maximum:29.96
    Units:percent
    Resolution:0.01
    CLASSIFICA
    Sediment description based on a rigorous definition (usually Shepard,1954). as modified by Schlee (1973) and Poppe and others (2014). (Source: USGS East Coast Sediment Texture Database data dictionary)
    ValueDefinition
    CLAYEY SILTsilt less than 75 percent and equal to or greater than 50 percent, clay greater than sand, and sand less than 20 percent
    GRAVELgravel equal to or greater than 50 percent
    GRAVELLY SEDIMENTgravel equal to or greater than 10 percent, but less than 50 percent
    SANDsand equal to or greater than 75 percent
    SAND SILT CLAYclay, sand, and silt greater than 20 percent each
    SANDY SILTsilt less than 75 percent and equal to or greater than 50 percent, sand greater than clay, and clay less than 20 percent
    SILTY SANDsand less than 75 percent and equal to or greater than 50 percent, silt greater than clay, and clay less than 20 percent
    MEDIAN
    Middle point in the grain size distribution in phi units (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-3.48
    Maximum:7.07
    Units:phi
    Resolution:0.01
    MEAN
    Average value in the grain size distribution in phi units (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-2.29
    Maximum:7.05
    Units:phi
    Resolution:0.01
    STDEV
    Standard deviation (root mean square of the deviations) of the grain size distribution in phi units (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-2.29
    Maximum:7.05
    Units:phi
    Resolution:0.01
    SKEWNESS
    Skewness (deviation from symmetrical form) of the grain size distribution in phi units (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-0.39
    Maximum:4.33
    Units:phi
    Resolution:0.01
    KURTOSIS
    Kurtosis (degree of curvature near the mode) of the grain size distribution in phi units. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:-1.23
    Maximum:118.18
    Units:unit less
    Resolution:0.01
    PHIm5
    Weight percent of the sample in the -5 phi fraction and coarser (nominal diameter of particles greater than or equal to 32mm); very coarse pebbles to cobbles (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:0.00
    Units:percent
    Resolution:0.01
    PHIm4
    Weight percent of the sample in the -4 phi fraction (nominal diameter of particles greater than or equal to 16mm, but less than 32mm); coarse pebbles. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:36.0
    Units:percent
    Resolution:0.01
    PHIm3
    Weight percent of the sample in the -3 phi fraction (nominal diameter of particles greater than or equal to 8mm, but less than 16mm); medium pebbles (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:26.0
    Units:percent
    Resolution:0.01
    PHIm2
    Weight percent of the sample in the -2 phi fraction (nominal diameter of particles greater than or equal to 4mm, but less than 8mm); fine pebbles (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:6.82
    Units:percent
    Resolution:0.01
    PHIm1
    Weight percent of the sample in the -1 phi fraction (nominal diameter of particles greater than or equal to2mm, but less than 4mm); very fine pebbles (granules). (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.00
    Maximum:7.1
    Units:percent
    Resolution:0.01
    PHI_0
    Weight percent of the sample in the 0 phi fraction (nominal diameter of particles greater than or equal to 1mm, but less than 2mm); very coarse sand. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.01
    Maximum:26.48
    Units:percent
    Resolution:0.01
    PHI_1
    Weight percent of the sample in the 1 phi fraction (nominal diameter of particles greater than or equal to 0.5mm, but less than 1mm); coarse sand. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.08
    Maximum:47.74
    Units:percent
    Resolution:0.01
    PHI_2
    Weight percent of the sample in the 2 phi fraction (nominal diameter of particles greater than or equal to 0.25mm, but less than 0.5mm); medium sand. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.16
    Maximum:87.1
    Units:percent
    Resolution:0.01
    PHI_3
    Weight percent of the sample in the 3 phi fraction (nominal diameter of particles greater than or equal to 0.125mm, but less than 0.25mm); fine sand. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.12
    Maximum:85.8
    Units:percent
    Resolution:0.01
    PHI_4
    Weight percent of the sample in the 4 phi fraction (nominal diameter of particles greater than or equal to 0.0625mm, but less than 0.125mm); very fine sand. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.22
    Maximum:75.74
    Units:percent
    Resolution:0.01
    PHI_5
    Weight percent of the sample in the 5 phi fraction (nominal diameter of particles greater than or equal to 0.031mm, but less than 0.0625mm); coarse silt (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.03
    Maximum:27.76
    Units:percent
    Resolution:0.01
    PHI_6
    Weight percent of the sample in the 6 phi fraction (nominal diameter of particles greater than or equal to 0.016mm, but less than 0.031mm); medium silt. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.03
    Maximum:34.7
    Units:percent
    Resolution:0.01
    PHI_7
    Weight percent of the sample in the7 phi fraction (nominal diameter of particles greater than or equal to 0.008mm, but less than 0.016mm); fine silt. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.03
    Maximum:26.57
    Units:percent
    Resolution:0.01
    PHI_8
    Weight percent of the sample in the 8 phi fraction (nominal diameter of particles greater than or equal to 0.004mm, but less than 0.008mm); very fine silt. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.04
    Maximum:21.57
    Units:percent
    Resolution:0.01
    PHI_9
    Weight percent of the sample in the 9 phi fraction (nominal diameter of particles greater than or equal to 0.002mm, but less than 0.004mm); coarse clay. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.03
    Maximum:15.74
    Units:percent
    Resolution:0.01
    PHI_10
    Weight percent of the sample in the 10 phi fraction (nominal diameter of particles greater than or equal to 0.001mm, but less than 0.002mm); medium clay. (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.02
    Maximum:9.35
    Units:percent
    Resolution:0.01
    PHI_11
    Weight percent of the sample in the 11 phi fraction and finer (nominal diameter of particles greater than or equal to 0.5(m); fine clay (Source: USGS East Coast Sediment Texture Database data dictionary)
    Range of values
    Minimum:0.02
    Maximum:4.87
    Units:percent
    Resolution:0.01
    ANALYST
    Name (usually first initial and last name) of person who performed the grain size or physical properties analysis. (Source: USGS East Coast Sediment Texture Database data dictionary) Character string of width 254
    ANAL_COMM
    Any further information about sediment analysis for all or specific parameters in this table. (Source: USGS East Coast Sediment Texture Database data dictionary) Character string of width 254

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • U.S. Geological Survey
  2. Who also contributed to the data set?
    Please recognize the U.S. Geological Survey (USGS) as the source of this information.
  3. To whom should users address questions about the data?
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov

Why was the data set created?

These physical samples were collected and analyzed to validate the acoustic remote sensing data (bathymetry, backscatter, seismic profile) collected during USGS Field Activities 2011-041-FA, 2012-003-FA, 2013-014-FA, and 2013-030-FA. Sediment Samples were collected using a modified Van Veen grab sampler mounted on the SEABed Observation and Sampling System (SEABOSS).

How was the data set created?

  1. From what previous works were the data drawn?
    Navigation file in text format (source 1 of 1)
    U.S. Geological Survey, Unpublished Material, raw navigation files..

    Type_of_Source_Media: disc
    Source_Contribution: Navigation files in HYPACK ( v. 11.16)
  2. How were the data generated, processed, and modified?
    Date: Sep-2013 (process 1 of 6)
    Step 1: Data Collection Sediment samples were collected using the Mini-SEABOSS deployed from the R/V Rafael during USGS Surveys; 2012-003-FA, 2013-014-FA, and 2013-030-FA. The Mini-SEABOSS is equipped with a Van Veen grab sampler, a digital camera, and a video camera. A total of 186 sediment samples were collected during the three surveys. Target stations were located on existing data tracklines so that samples would fall within the data boundaries. The vessel would arrive at each target station and then deploy the mini-SEABOSS sampler when within 5 meters of target location. The vessel and sampler would then drift with wind and current for several minutes recording video and photographs in most cases. The sampler was then "landed" on the seafloor and the sample was acquired, usually at the end of the drift line. Sediment samples were collected during three surveys in 2012 and 2013. Person who carried out this activity:
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov
    Date: Oct-2013 (process 2 of 6)
    Step 2: Data Analysis Samples were analyzed in the sediment laboratory at the USGS Woods Hole Coastal and Marine Science Center. Coarse fraction determined by sieve; fine fraction determined by Coulter Counter. See Poppe, Williams, and Paskevich (2005) for analytical specifics. Samples were analyzed after each of the three surveys in 201208, 201307,and 201310. Person who carried out this activity:
    Katherine McMullen
    U.S. Geological Survey
    Field and Laboratory Technician
    384 Woods Hole Rd
    Woods Hole, MA
    USA

    508-548-8700 x2277 (voice)
    508-457-2310 (FAX)
    kmcmullen@usgs.gov
    Data sources produced in this process:
    • ba3.xlsx
    • ba4.xlsx
    • ba5.xlsx
    Date: 27-May-2014 (process 3 of 6)
    Step 3: Data compilation. Appended the three Excel spreadsheets into one spreadsheet BarnBaySedSamplesMerge.xls. Then saved the spreadsheet as a comma delimited file BarnBaySedSamples.csv. Finally added the csv file to ArcGIS (v. 9.3.1) as an event theme ( using the latitude and longitude fields) and then converted it to a shapefile "BarnBaySedSamples.shp. Person who carried out this activity:
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov
    Date: 20-Jul-2018 (process 4 of 6)
    USGS Thesaurus keywords added to the keyword section. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 15-Nov-2019 (process 5 of 6)
    Crossref DOI link was added as the first link in the metadata. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 08-Sep-2020 (process 6 of 6)
    Added keywords section with USGS persistent identifier as theme keyword. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    Poppe, L.J., McMullen, K.Y., Williams, S.J., and Paskevich, V.F., 2014, USGS East-Coast Sediment Analysis: Procedures, Database, and GIS Data: Open-File Report 2005-1001, U.S. Geological Survey, Reston, VA.

    Online Links:

    Shepard, F.P., 1954, Nomenclature based on sand-silt-clay ratios: Journal Sedimentary Petrology 24 (3), Society of Economic Paleontologists and Mineralogists, Tulsa, OK.

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
    The location of each sample was recorded using Differential Global Positioning System (GPS). The recorded position of each sediment sample is actually the position of the GPS antenna on the cabin house of the R/V Rafael; not the MINI-SEABOSS sampler. The MINI-SEABOSS was deployed from a davit on the starboard side of the R/V Rafael. The davit is approximately 2 meters astern, and 1 meter to starboard of the GPS antenna. No layback or offset was applied to the recorded position. In addition to the +/-3 meter offset the MINI-SEABOSS may additionally drift away from the survey vessel when deployed to the seafloor. Based on the various sources for horizontal offsets, a conservative estimate of the horizontal accuracy of the sediment sample is 5 meters.
  3. How accurate are the heights or depths?
    The depths recorded for each sample were recorded using the vessel's depth sounder at the time the sample was acquired. This depth values is not corrected for tides or based on any vertical datum.
  4. Where are the gaps in the data? What is missing?
    This dataset includes all the samples collected by the USGS in Barnegat Bay, New Jersey during surveys 2011-041-FA, 2012-003-FA, 2013-014-FA, and 2013-030-FA.
  5. How consistent are the relationships among the observations, including topology?
    No additional checks for topological consistency were performed on this data.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints none
Use_Constraints none
  1. Who distributes the data set? (Distributor 1 of 1)
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    bandrews@usgs.gov
  2. What's the catalog number I need to order this data set? BarnBaySedSamples.zip: contains BarnBaySedSamples.shp, BarnBaySedSamples.jpg browse graphic, and the associated FGDC metadata.
  3. What legal disclaimers am I supposed to read?
    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.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    This zip file contains data available in shapefile, and csv format. The user must have software capable of uncompressing the WinZip file and displaying the shapefile or the csv file.

Who wrote the metadata?

Dates:
Last modified: 18-Mar-2024
Metadata author:
Brian Andrews
U.S. Geological Survey
Geographer
384 Woods Hole Rd.
Woods Hole, MA
USA

508-548-8700 x2348 (voice)
508-457-2310 (FAX)
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:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
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