Sediment size distributions from San Pablo Bay and China Camp Marsh, California

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What does this data set describe?

Title:
Sediment size distributions from San Pablo Bay and China Camp Marsh, California
Abstract:
As part of the hydrodynamic and sediment transport investigations in San Pablo Bay and China Camp Marsh, California, particle size distributions of bed sediments were measured at most instrumented stations and are presented in a comma-delimited values spreadsheet. This portion of the data release presents San Pablo Bay and China Camp Marsh sediment particle size distributions from samples collected during multiple instrument deployments. Users are advised to check the data carefully for sampling time, location, and reference information.
Supplemental_Information:
  1. How might this data set be cited?
    Lacy, Jessica R, and Dailey, Evan, 2017, Sediment size distributions from San Pablo Bay and China Camp Marsh, California: data release DOI:10.5066/F7HM56MX, U.S. Geological Survey, Pacific Coastal and Marine Science Center Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    Lacy, Jessie R., Allen, Rachel M., Foster-Martinez, Madeline R., Joanne C. T. Ferreira, and O'Neill, Andrea, 2017, Hydrodynamic and sediment transport data from San Pablo Bay and China Camp marsh (northern San Francisco Bay), 2013-2016: data release DOI:10.5066/F7HM56MX, U.S. Geological Survey, Pacific Coastal and Marine Science Center Santa Cruz, California.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -122.493
    East_Bounding_Coordinate: -122.3697
    North_Bounding_Coordinate: 38.0451
    South_Bounding_Coordinate: 38.006
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/59c45772e4b017cf313bea5f?name=SedimentSizeDistributionLocations.png&allowOpen=true (PNG)
    image showing locations of sampling
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 03-Dec-2013
    Ending_Date: 21-Jun-2016
    Currentness_Reference:
    dates of observations
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: Comma-separated values spreadsheet (CSV)
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Point data set.
    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 0.001. Longitudes are given to the nearest 0.001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is World Geodetic System 1984 (WGS84).
      The ellipsoid used is WGS84.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257223563.
  7. How does the data set describe geographic features?
    Attribute Table
    Table containing attribute information associated with the dataset (Source: Producer defined)
    FACS/FAN I.D.
    Unique U.S. Geological Survey field activity identifier. (Source: Producer defined) Unique U.S. Geological Survey field activity identifier.
    Sample I.D.
    Sample identifier (Source: Producer defined) Unique identifier for samples; assigned in the field.
    Station
    Unique identifier of sampling locations. (Source: Producer defined) Unique identifier of sampling locations.
    Date Collected
    Date in month/day/year format of sample collection. (Source: Producer defined)
    Range of values
    Minimum:12/03/2013
    Maximum:06/21/2016
    Time (PDT)
    Time of sample collection, in hours:minutes:seconds format, Pacific Daylight Time (PDT). (Source: Producer defined) Time of sample collection, in hours:minutes:seconds format, Pacific Daylight Time (PDT), or tide conditions during collection.
    Latitude
    Latitude of sample location in decimal degrees, north. (Source: Producer defined)
    Range of values
    Minimum:38.00879
    Maximum:38.07641
    Units:Decimal degrees
    Longitude
    Longitude of sample location in decimal degrees, east. (Source: Producer defined)
    Range of values
    Minimum:-122.49300
    Maximum:-122.37660
    Units:Decimal degrees
    Sample Type
    Type of sample collected (Source: Producer defined)
    ValueDefinition
    GrabSample collected with ponar grab equipment
    Wt. percent in -4.00 phi bin or 16 mm bin
    Weight percent of sample with grain diameter greater than -4.00 phi, or 16 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -3.75 phi bin or 13.5 mm bin
    Weight percent of sample with grain diameter between -4.00 and -3.75 phi, or 13.5 and 16 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -3.50 phi bin or 11.2 mm bin
    Weight percent of sample with grain diameter between -3.75 and -3.50 phi, or 11.2 and 13.5 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -3.25 phi bin or 9.51 mm bin
    Weight percent of sample with grain diameter between -3.50 and -3.25 phi, or 9.51 and 11.2 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -3.00 phi bin or 8 mm bin
    Weight percent of sample with grain diameter between -3.25 and -3.00 phi, or 8 and 9.51 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -2.75 phi bin or 6.73 mm bin
    Weight percent of sample with grain diameter between -3.00 and -2.75 phi, or 6.73 and 8 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -2.50 phi bin or 5.66 mm bin
    Weight percent of sample with grain diameter between -2.75 and -2.50 phi, or 5.66 and 6.73 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -2.25 phi bin or 4.76 mm bin
    Weight percent of sample with grain diameter between -2.50 and -2.25 phi, or 4.76 and 5.66 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -2.25 phi bin or 4.76 mm bin
    Weight percent of sample with grain diameter between -2.50 and -2.25 phi, or 4.76 and 5.66 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -2.00 phi bin or 4 mm bin
    Weight percent of sample with grain diameter between -2.25 and -2.00 phi, or 4 and 4.76 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -1.75 phi bin or 3.36 mm bin
    Weight percent of sample with grain diameter between -2.00 and -1.75 phi, or 3.36 and 4 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -1.50 phi bin or 2.83 mm bin
    Weight percent of sample with grain diameter between -1.75 and -1.50 phi, or 2.83 and 3.36 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -1.25 phi bin or 2.38 mm bin
    Weight percent of sample with grain diameter between -1.50 and -1.25 phi, or 2.38 and 2.83 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -1.00 phi bin or 2 mm bin
    Weight percent of sample with grain diameter between -1.25 and -1.00 phi, or 2 and 2.38 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -0.75 phi bin or 1.68 mm bin
    Weight percent of sample with grain diameter between -1.00 and -0.75 phi, or 1.68 and 2 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -0.50 phi bin or 1.41 mm bin
    Weight percent of sample with grain diameter between -0.75 and -0.50 phi, or 1.41 and 1.68 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in -0.25 phi bin or 1.19 mm bin
    Weight percent of sample with grain diameter between -0.50 and -0.25 phi, or 1.19 and 1.41 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 0.00 phi bin or 1 mm bin
    Weight percent of sample with grain diameter between -0.25 and 0.00 phi, or 1 and 1.19 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 0.25 phi bin or 0.8409 mm bin
    Weight percent of sample with grain diameter between 0.00 and 0.25 phi, or 0.8409 and 1 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 0.50 phi bin or 0.7071 mm bin
    Weight percent of sample with grain diameter between 0.25 and 0.50 phi, or 0.7071 and 0.8409 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 0.75 phi bin or 0.5946 mm bin
    Weight percent of sample with grain diameter between 0.50 and 0.75 phi, or 0.5946 and 0.7071 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 1.00 phi bin or 0.5 mm bin
    Weight percent of sample with grain diameter between 0.75 and 1.00 phi, or 0.5 and 0.5946 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 1.25 phi bin or 0.4204 mm bin
    Weight percent of sample with grain diameter between 1.00 and 1.25 phi, or 0.4204 and 0.5 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 1.50 phi bin or 0.3536 mm bin
    Weight percent of sample with grain diameter between 1.25 and 1.50 phi, or 0.3536 and 0.4204 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 1.75 phi bin or 0.2973 mm bin
    Weight percent of sample with grain diameter between 1.50 and 1.75 phi, or 0.2973 and 0.3536 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 2.00 phi bin or 0.25 mm bin
    Weight percent of sample with grain diameter between 1.75 and 2.00 phi, or 0.25 and 0.2973 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 2.25 phi bin or 0.2102 mm bin
    Weight percent of sample with grain diameter between 2.00 and 2.25 phi, or 0.2102 and 0.25 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 2.50 phi bin or 0.1768 mm bin
    Weight percent of sample with grain diameter between 2.25 and 2.50 phi, or 0.1768 and 0.2102 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 2.75 phi bin or 0.1487 mm bin
    Weight percent of sample with grain diameter between 2.50 and 2.75 phi, or 0.1487 and 0.1768 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 3.00 phi bin or 0.125 mm bin
    Weight percent of sample with grain diameter between 2.75 and 3.00 phi, or 0.125 and 0.1487 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 3.25 phi bin or 0.1051 mm bin
    Weight percent of sample with grain diameter between 3.00 and 3.25 phi, or 0.1051 and 0.125 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 3.50 phi bin or 0.08839 mm bin
    Weight percent of sample with grain diameter between 3.25 and 3.50 phi, or 0.08839 and 0.1051 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 3.75 phi bin or 0.07433 mm bin
    Weight percent of sample with grain diameter between 3.50 and 3.75 phi, or 0.07433 and 0.08839 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 3.75 phi bin or 0.07433 mm bin
    Weight percent of sample with grain diameter between 3.50 and 3.75 phi, or 0.07433 and 0.08839 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 4.00 phi bin or 0.0625 mm bin
    Weight percent of sample with grain diameter between 3.75 and 4.00 phi, or 0.0625 and 0.07433 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 4.25 phi bin or 0.052556 mm bin
    Weight percent of sample with grain diameter between 4.00 and 4.25 phi, or 0.052556 and 0.0625 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 4.50 phi bin or 0.044194 mm bin
    Weight percent of sample with grain diameter between 4.25 and 4.50 phi, or 0.044194 and 0.052556 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 4.75 phi bin or 0.037163 mm bin
    Weight percent of sample with grain diameter between 4.50 and 4.75 phi, or 0.037163 and 0.044194 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 5.00 phi bin or 0.03125 mm bin
    Weight percent of sample with grain diameter between 4.75 and 5.00 phi, or 0.03125 and 0.037163 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 5.25 phi bin or 0.02628 mm bin
    Weight percent of sample with grain diameter between 5.00 and 5.25 phi, or 0.02628 and 0.03125 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 5.50 phi bin or 0.0221 mm bin
    Weight percent of sample with grain diameter between 5.25 and 5.50 phi, or 0.0221 and 0.02628 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 5.75 phi bin or 0.01858 mm bin
    Weight percent of sample with grain diameter between 5.50 and 5.75 phi, or 0.01858 and 0.0221 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 6.00 phi bin or 0.01563 mm bin
    Weight percent of sample with grain diameter between 5.75 and 6.00 phi, or 0.01563 and 0.01858 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 6.25 phi bin or 0.01314 mm bin
    Weight percent of sample with grain diameter between 6.00 and 6.25 phi, or 0.01314 and 0.01563 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 6.50 phi bin or 0.01105 mm bin
    Weight percent of sample with grain diameter between 6.25 and 6.50 phi, or 0.01105 and 0.01314 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 6.75 phi bin or 0.00929 mm bin
    Weight percent of sample with grain diameter between 6.50 and 6.75 phi, or 0.00929 and 0.01105 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 7.00 phi bin or 0.00781 mm bin
    Weight percent of sample with grain diameter between 6.75 and 7.00 phi, or 0.00781 and 0.00929 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 7.25 phi bin or 0.00657 mm bin
    Weight percent of sample with grain diameter between 7.00 and 7.25 phi, or 0.00657 and 0.00781 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 7.50 phi bin or 0.00552 mm bin
    Weight percent of sample with grain diameter between 7.25 and 7.50 phi, or 0.00552 and 0.00657 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 7.75 phi bin or 0.00465 mm bin
    Weight percent of sample with grain diameter between 7.50 and 7.75 phi, or 0.00465 and 0.00552 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 8.00 phi bin or 0.00391 mm bin
    Weight percent of sample with grain diameter between 7.75 and 8.00 phi, or 0.00391 and 0.00465 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 8.25 phi bin or 0.00329 mm bin
    Weight percent of sample with grain diameter between 8.00 and 8.25 phi, or 0.00329 and 0.00391 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 8.50 phi bin or 0.00276 mm bin
    Weight percent of sample with grain diameter between 8.25 and 8.50 phi, or 0.00276 and 0.00329 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 8.75 phi bin or 0.00232 mm bin
    Weight percent of sample with grain diameter between 8.50 and 8.75 phi, or 0.00232 and 0.00276 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 9.00 phi bin or 0.00195 mm bin
    Weight percent of sample with grain diameter between 8.75 and 9.00 phi, or 0.00195 and 0.00232 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 9.25 phi bin or 0.00164 mm bin
    Weight percent of sample with grain diameter between 9.00 and 9.25 phi, or 0.00164 and 0.00195 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 9.50 phi bin or 0.00138 mm bin
    Weight percent of sample with grain diameter between 9.25 and 9.50 phi, or 0.00138 and 0.00164 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 9.75 phi bin or 0.00116 mm bin
    Weight percent of sample with grain diameter between 9.50 and 9.75 phi, or 0.00116 and 0.00138 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 9.99 phi bin or 0.00098 mm bin
    Weight percent of sample with grain diameter between 9.75 and 9.99 phi, or 0.00098 and 0.00116 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 10.25 phi bin or 0.00082 mm bin
    Weight percent of sample with grain diameter between 9.99 and 10.25 phi, or 0.00082 and 0.00098 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 10.50 phi bin or 0.00069 mm bin
    Weight percent of sample with grain diameter between 10.25 and 10.50 phi, or 0.00069 and 0.00082 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 10.75 phi bin or 0.00058 mm bin
    Weight percent of sample with grain diameter between 10.50 and 10.75 phi, or 0.00058 and 0.00069 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 10.99 phi bin or 0.00049 mm bin
    Weight percent of sample with grain diameter between 10.75 and 10.99 phi, or 0.00049 and 0.00058 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 11.25 phi bin or 0.0004 mm bin
    Weight percent of sample with grain diameter between 10.99 and 11.25 phi, or 0.0004 and 0.00049 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 11.48 phi bin or 0.00035 mm bin
    Weight percent of sample with grain diameter between 11.25 and 11.48 phi, or 0.00035 and 0.0004 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 12.02 phi bin or 0.000241 mm bin
    Weight percent of sample with grain diameter between 11.48 and 12.02 phi, or 0.000241 and 0.00035 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 13.02 phi bin or 0.00012 mm bin
    Weight percent of sample with grain diameter between 12.02 and 13.02 phi, or 0.00012 and 0.000241 mm. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Percent Gravel
    Percent of sample greater than 2 mm. (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:Percentage
    Percent Sand
    Percent of sample less than 2 mm and greater than 63 microns. (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:Percentage
    Percent Silt
    Percent of sample less than 63 microns and greater than 4 microns. (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:Percentage
    Percent Clay
    Percent of sample less than 4 microns. (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:Percentage
    Percent Mud
    Percent of sample less than 63 microns. (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:Percentage
    Gravel/Sand
    Ratio of gravel to sand in sample. (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:0.156
    Sand/Silt
    Ratio of sand to silt in sample. (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:151.213
    Silt/Clay
    Ratio of silt to clay in sample. (Source: Producer defined)
    Range of values
    Minimum:1.046
    Maximum:2.45
    Sand/Clay
    Ratio of sand to clay in sample. (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:370.456
    Sand/Mud
    Ratio of sand to mud in sample. (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:107.382
    Gravel/Mud
    Ratio of gravel to mud in sample. (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:0.367
    D5 Phi
    Phi size at D5 for sample. (Source: Producer defined)
    Range of values
    Minimum:0.629
    Maximum:5.064
    Units:Phi size
    D10 Phi
    Phi size at D10 for sample. (Source: Producer defined)
    Range of values
    Minimum:0.852
    Maximum:6.159
    Units:Phi size
    D16 Phi
    Phi size at D16 for sample. (Source: Producer defined)
    Range of values
    Minimum:1.020
    Maximum:6.514
    Units:Phi size
    D25 Phi
    Phi size at D25 for sample. (Source: Producer defined)
    Range of values
    Minimum:1.223
    Maximum:6.934
    Units:Phi size
    D50 Phi
    Phi size at D50 for sample. (Source: Producer defined)
    Range of values
    Minimum:1.673
    Maximum:7.951
    Units:Phi size
    D75 Phi
    Phi size at D75 for sample. (Source: Producer defined)
    Range of values
    Minimum:1.977
    Maximum:9.156
    Units:Phi size
    D84 Phi
    Phi size at D84 for sample. (Source: Producer defined)
    Range of values
    Minimum:2.132
    Maximum:9.696
    Units:Phi size
    D90 Phi
    Phi size at D90 for sample. (Source: Producer defined)
    Range of values
    Minimum:2.244
    Maximum:10.105
    Units:Phi size
    D95 Phi
    Phi size at D95 for sample. (Source: Producer defined)
    Range of values
    Minimum:2.436
    Maximum:10.513
    Units:Phi size
    F-W Median
    Phi size median for sample by Folk and Ward (1957) method. (Source: producer defined)
    Range of values
    Minimum:-3
    Maximum:5.90
    Units:Phi size
    F-W Mean
    Phi size mean for sample by Folk and Ward (1957) method. (Source: producer defined)
    Range of values
    Minimum:-3
    Maximum:5.95
    Units:Phi size
    F-W Sorting
    sorting for sample by Folk and Ward (1957) method. (Source: producer defined)
    Range of values
    Minimum:0.60
    Maximum:2.47
    Units:Phi size
    F-W Skewness
    skewness for sample by Folk and Ward (1957) method. (Source: producer defined)
    Range of values
    Minimum:-0.35
    Maximum:0.63
    Units:Phi size
    F-W Kurtosis
    Kurtosis for sample by Folk and Ward (1957) method. (Source: producer defined)
    Range of values
    Minimum:0.61
    Maximum:2.92
    Units:Phi size
    Inman Median
    Phi size median for sample by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:-3
    Maximum:5.90
    Units:Phi size
    Inman Mean
    Phi size mean for sample by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:-3
    Maximum:5.97
    Units:Phi size
    Inman Sorting
    sorting for sample by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:0.59
    Maximum:2.45
    Units:Phi size
    Inman Skew 16-84
    skewness for sample (D16-D84) by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:-0.28
    Maximum:0.60
    Units:Phi size
    Inman Skew 05-95
    skewness for sample (D5-D95) by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:-1.37
    Maximum:2.94
    Units:Phi size
    Inman Kurtosis
    Kurtosis for sample by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:0.13
    Maximum:3.55
    Units:Phi size
    Trask Median
    mm size median for sample by Trask (XXXX) method in mm. (Source: producer defined)
    Range of values
    Minimum:0.00404
    Maximum:0.31364
    Units:millimeters
    Trask Mean
    mm size mean for sample by Trask (XXXX) method in mm. (Source: producer defined)
    Range of values
    Minimum:0.004967
    Maximum:0.322061
    Units:millimeters
    Trask Sorting
    sorting for sample by Trask (XXXX) method in mm. (Source: producer defined)
    Range of values
    Minimum:1.215510
    Maximum:5.837522
    Units:millimeters
    Trask Skewness
    skewness for sample by Trask (XXXX) method in mm. (Source: producer defined)
    Range of values
    Minimum:0.197919
    Maximum:1.258160
    Units:millimeters
    Trask Kurtosis
    kurtosis for sample by Trask (XXXX) method in mm. (Source: producer defined)
    Range of values
    Minimum:0.150862
    Maximum:0.353145
    Units:millimeters
    Mean Phi
    phi size mean for sample. (Source: producer defined)
    Range of values
    Minimum:0.680507
    Maximum:8.023167
    Units:Phi size
    Mean mm
    mm size mean for sample. (Source: producer defined)
    Range of values
    Minimum:0.003844
    Maximum:0.311973
    Units:millimeters
    Variance
    variance for sample. (Source: producer defined)
    Range of values
    Minimum:0.579939
    Maximum:8.223348
    Units:Phi size
    Std. Dev.
    standard deviation for sample. (Source: producer defined)
    Range of values
    Minimum:0.761537
    Maximum:2.867638
    Units:Phi size
    Skewness
    skewness for sample. (Source: producer defined)
    Range of values
    Minimum:-0.583652
    Maximum:4.317912
    Units:Phi size
    Kurtosis
    kurtosis for sample. (Source: producer defined)
    Range of values
    Minimum:1.840681
    Maximum:40.189793
    Units:Phi size

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Jessica R Lacy
    • Evan Dailey
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Attn: PCMSC Science Data Coordinator
    2885 Mission Street
    Santa Cruz, CA

    831-427-4747 (voice)
    pcmsc_data@usgs.gov

Why was the data set created?

Data from these experiments will be used to investigate the spatial and temporal variation in suspended sediment transport at the marsh boundary in order to better inform predictions of marsh resilience, and offer more complete characterizations of sediment transport and conditions within this unique environment.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 21-Jun-2016 (process 1 of 5)
    Surface sediment was collected on 19 days between December 3, 2013 and June 21, 2016 using a small ponar, or 'grab', sampler from the R/V Parke Snavely. Some sediment samples were collected from sediment that accumulated on instruments. A handheld global satellite navigation system (GNSS) receiver was used to determine the locations of sediment samples.
    Date: 12-Oct-2016 (process 2 of 5)
    The grain-size distributions of samples were determined in the USGS Pacific Coastal and Marine Science Center sediment lab. Approximately 20 g of sediment was sub-sampled and 10 mL of 35 percent hydrogen peroxide was added to remove organic material in the sample. The sample was heated at 250 degrees C to remove any remaining hydrogen peroxide and was placed in an ultrasonic bath to liberate the fine fraction. Subsequently, the sample was centrifuged for 1.5 hours to remove soluble salts. Samples were funneled through a 2 mm and a 63 um sieve to separate the gravel (greater than 2 mm), sand (63 um to 2 mm), and mud (less than 63 um). The sand and gravel fractions were dried in an 80 degree C oven and weighed. Five mL of sodium hexametaphosphate was added to the mud fraction and a 20 mL aliquot was taken from a 1 L graduated cylinder to determine the weight of the mud. The particle-size distribution of the mud and sand fractions was analyzed separately using a Beckman Coulter LS 13 320, and the gravel, sand, and mud results were integrated into a single grain-size distribution for each sample.
    Date: 25-Nov-2019 (process 3 of 5)
    Extraneous text was removed from Semi-Major Axis tag. Person who carried out this activity:
    Susan A. Cochran
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    2885 Mission St.
    Santa Cruz, CA
    USA

    831-460-7545 (voice)
    scochran@usgs.gov
    Date: 19-Oct-2020 (process 4 of 5)
    Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. 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: 13-Oct-2021 (process 5 of 5)
    Performed minor edits to the metadata to correct typos. No data were changed Person who carried out this activity:
    U.S. Geological Survey
    Attn: Susan A. Cochran
    Geologist
    2885 Mission Street
    Santa Cruz, CA

    831-460-7545 (voice)
    scochran@usgs.gov
  3. What similar or related data should the user be aware of?

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

  1. How well have the observations been checked?
    No formal attribute accuracy tests were conducted
  2. How accurate are the geographic locations?
    Horizontal accuracy derived from GPS instrumentation is less than 1 m.
  3. How accurate are the heights or depths?
    Vertical accuracy derived from GPS instrumentation is less than 0.05 m.
  4. Where are the gaps in the data? What is missing?
    Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
  5. How consistent are the relationships among the observations, including topology?
    No formal logical accuracy tests were conducted. Data fall within expected ranges.

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:
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey - Science Base
    U.S. Geological Survey
    Denver Federal Center, Building 810, Mail Stop 302
    Denver, CO
    United States

    1-888-275-8747 (voice)
    sciencebase@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable sediment size distribution data in csv (comma-delimited spreadsheet) file format.
  3. What legal disclaimers am I supposed to read?
    Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    The data is available in comma-separated values (CSV) spreadsheet format. Text editing software can be used to open the file, as well as spreadsheet programs, such as Microsoft Excel.

Who wrote the metadata?

Dates:
Last modified: 13-Oct-2021
Metadata author:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Attn: PCMSC Science Data Coordinator
2885 Mission Street
Santa Cruz, CA

831-427-4747 (voice)
pcmsc_data@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

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