Sediment grain-size data from the Klamath estuary, California

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Title: Sediment grain-size data from the Klamath estuary, California
Abstract:
This data release includes grain-size measurements of sediment samples collected from the substrate surface and uppermost 10 cm of sediment deposits in the Klamath estuary, northern California. Samples were collected using a BMH-60 bed-material sampler deployed from a boat, or by hand trowel from subaerial or shallow-water (less than 0.5 m water depth) regions along the estuary margins and side channels. Sediment grain size was analyzed at the U.S. Geological Survey (USGS) laboratory in Santa Cruz, Calif. Particles coarser than 2 mm were sieved using a RO-TAP sieve shaker, and particles finer than 2 mm were analyzed with a Coulter laser particle-size analyzer (LPSA), after organic matter had been removed using a hydrogen peroxide solution. At some submerged locations where sampling was attempted, no sample was recovered. The field crew observed this occurring in places where the substrate was too coarse-grained to be collected by the bed-material sampler (cobbles), where large particles were embedded in finer (poorly sorted) matrix, and where sediment was covered by algal mats thick enough to prevent the sampler from accessing the sedimentary substrate. Locations where sampling was attempted but no sample was recovered are indicated in the ‘Comments’ column within the data spreadsheet. The sediment samples were collected under a Cultural Resources Management Permit issued by the Yurok Tribe, whose support the USGS acknowledges gratefully.
Supplemental_Information:
Additional information about the field activities from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-650-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2018-680-FA
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Sediment samples from the Klamath estuary were collected on Yurok tribal lands, with permission under a Cultural Resources Management Permit issued by the Yurok Tribe.
  1. How might this data set be cited?
    East, Amy E., Anderson, Chauncey W., Curtis, Jennifer A., Daniel R. W. Haught, and Wright, Scott A., 20211118, Sediment grain-size data from the Klamath estuary, California: data release DOI:10.5066/P9CAZIHJ, 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: -124.078935
    East_Bounding_Coordinate: -124.000698
    North_Bounding_Coordinate: 41.546803
    South_Bounding_Coordinate: 41.516483
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/6160acb1d34e52f49c82259f?name=IMG_7540.JPG&allowOpen=true (JPG)
    Photo of scientists collecting sediment samples in the Klamath estuary
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 13-Nov-2018
    Ending_Date: 17-Oct-2019
    Currentness_Reference:
    date range that samples were collected
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: comma-delimited text
  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. It contains the following vector data types (SDTS terminology):
      • Point (175)
    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 WGS_1984.
      The ellipsoid used is WGS_1984.
      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. “N.A.” indicates that a sediment sample was not analyzed for that grain size, or that the data field was not used, or that no value was calculated. If the sample was too small to measure, then the cell is indicated with “n.d.” for no data. (Source: Producer defined)
    FAN ID
    Unique U.S. Geological Survey field activity identifier (Source: producer defined) Unique identifier for the U.S. Geological Survey field activity
    Sample ID
    Name of sample assigned in the field. (Source: producer defined) Unique identifier for the sample given in the field
    Lab ID
    Laboratory identification number (Source: Producer defined) Unique identifier for the sample given during analysis in the sediment lab
    Date Collected
    Date of sample collection in yyyy-mm-dd format (Source: producer defined)
    Range of values
    Minimum:2018-11-13
    Maximum:2019-10-17
    Units:Dates in yyyy-mm-dd format
    Latitude
    Latitude of sample in decimal degrees (Source: producer defined)
    Range of values
    Minimum:41.516483
    Maximum:41.546803
    Units:decimal degrees
    Longitude
    Longitude of sample in decimal degrees (Source: producer defined)
    Range of values
    Minimum:-124.078935
    Maximum:-124.000698
    Units:decimal degrees
    Sampling Method
    Sample collection method (Source: Producer defined)
    ValueDefinition
    BMH-60Sample collected using a bed material sampler (model BMH-60) deployed by winched cable from a boat.
    Hand grabSample collected by hand using a trowel from subaerial areas or shallow water (less than 0.5 m water depth).
    Comments
    Notes associated with sample or processing (Source: Producer defined)
    ValueDefinition
    mostly organicsExplanations where samples contained insufficient siliciclastic sediment for analysis due to being composed mostly or entirely of organic matter
    mostly organics and snail shellsExplanations where samples contained insufficient siliciclastic sediment for analysis due to being composed mostly or entirely of organic matter and snail shells
    Impenetrable substrate, sampler obtained little sediment on three samplesExplanations where samples contained insufficient siliciclastic sediment for robust analysis due to the substrate being impenetrable to the BMH-60 sampler
    [various]Additional comments relevant to data interpretation
    N.A.Not Applicable, indicating that no comments were entered about a particular sample.
    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, approximate
    Weight percent of sample with grain diameter between 3.75 and 4.00 phi, or 0.0625 and 0.07433 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 4.25 phi bin or 0.052556 mm bin, approximate
    Weight percent of sample with grain diameter between 4.00 and 4.25 phi, or 0.052556 and 0.0625 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 4.50 phi bin or 0.044194 mm bin, approximate
    Weight percent of sample with grain diameter between 4.25 and 4.50 phi, or 0.044194 and 0.052556 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 4.75 phi bin or 0.037163 mm bin, approximate
    Weight percent of sample with grain diameter between 4.50 and 4.75 phi, or 0.037163 and 0.044194 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 5.00 phi bin or 0.03125 mm bin, approximate
    Weight percent of sample with grain diameter between 4.75 and 5.00 phi, or 0.03125 and 0.037163 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 5.25 phi bin or 0.02628 mm bin, approximate
    Weight percent of sample with grain diameter between 5.00 and 5.25 phi, or 0.02628 and 0.03125 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 5.50 phi bin or 0.0221 mm bin, approximate
    Weight percent of sample with grain diameter between 5.25 and 5.50 phi, or 0.0221 and 0.02628 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 5.75 phi bin or 0.01858 mm bin, approximate
    Weight percent of sample with grain diameter between 5.50 and 5.75 phi, or 0.01858 and 0.0221 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 6.00 phi bin or 0.01563 mm bin, approximate
    Weight percent of sample with grain diameter between 5.75 and 6.00 phi, or 0.01563 and 0.01858 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 6.25 phi bin or 0.01314 mm bin, approximate
    Weight percent of sample with grain diameter between 6.00 and 6.25 phi, or 0.01314 and 0.01563 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 6.50 phi bin or 0.01105 mm bin, approximate
    Weight percent of sample with grain diameter between 6.25 and 6.50 phi, or 0.01105 and 0.01314 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 6.75 phi bin or 0.00929 mm bin, approximate
    Weight percent of sample with grain diameter between 6.50 and 6.75 phi, or 0.00929 and 0.01105 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 7.00 phi bin or 0.00781 mm bin, approximate
    Weight percent of sample with grain diameter between 6.75 and 7.00 phi, or 0.00781 and 0.00929 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 7.25 phi bin or 0.00657 mm bin, approximate
    Weight percent of sample with grain diameter between 7.00 and 7.25 phi, or 0.00657 and 0.00781 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 7.50 phi bin or 0.00552 mm bin, approximate
    Weight percent of sample with grain diameter between 7.25 and 7.50 phi, or 0.00552 and 0.00657 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 7.75 phi bin or 0.00465 mm bin, approximate
    Weight percent of sample with grain diameter between 7.50 and 7.75 phi, or 0.00465 and 0.00552 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:100
    Units:percentage
    Wt. percent in 8.00 phi bin or 0.00391 mm bin, approximate
    Weight percent of sample with grain diameter between 7.75 and 8.00 phi, or 0.00391 and 0.00465 mm. Values may have been affected by lab equipment malfunction; see section Attribute_Accuracy_Report. (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 to Sand Ratio
    ratio of percent gravel in sample to percent sand. “NA” means there was insufficient gravel or sand to compute the ratio. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:877.503
    Units:no unit
    Sand to Silt Ratio
    ratio of percent sand in sample to percent silt. (Source: producer defined)
    Range of values
    Minimum:0.083
    Maximum:3905.983
    Units:no unit
    Silt to Clay Ratio
    ratio of percent silt in sample to percent clay. (Source: producer defined)
    Range of values
    Minimum:2.277
    Maximum:10.39
    Units:no unit
    Sand to Clay Ratio
    ratio of percent sand in sample to percent clay. (Source: producer defined)
    Range of values
    Minimum:0.401
    Maximum:10280.035
    Units:no unit
    Sand to Mud Ratio
    ratio of percent sand in sample to percent mud. (Source: producer defined)
    Range of values
    Minimum:0.068
    Maximum:2830.508
    Units:no unit
    Gravel to Mud Ratio
    ratio of percent gravel in sample to percent mud. (Source: producer defined)
    Range of values
    Minimum:0
    Maximum:33412.413
    Units:no unit
    D5 Phi
    Phi size at D5 for sample. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:3.844
    Units:Phi size
    D10 Phi
    Phi size at D10 for sample. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:4.293
    Units:Phi size
    D16 Phi
    Phi size at D16 for sample. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:4.622
    Units:Phi size
    D25 Phi
    Phi size at D25 for sample. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:5.03
    Units:Phi size
    D50 Phi
    Phi size at D50 for sample. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:6.366
    Units:Phi size
    D75 Phi
    Phi size at D75 for sample. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:7.887
    Units:Phi size
    D84 Phi
    Phi size at D84 for sample. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:8.686
    Units:Phi size
    D90 Phi
    Phi size at D90 for sample. (Source: producer defined)
    Range of values
    Minimum:-3.275
    Maximum:9.385
    Units:Phi size
    D95 Phi
    Phi size at D95 for sample. (Source: producer defined)
    Range of values
    Minimum:-3.064
    Maximum:10.073
    Units:Phi size
    D5 mm
    mm size at D5 for sample. (Source: producer defined)
    Range of values
    Minimum:0.0009
    Maximum:8.3623
    Units:millimeters
    D10 mm
    mm size at D10 for sample. (Source: producer defined)
    Range of values
    Minimum:0.0015
    Maximum:9.6771
    Units:millimeters
    D16 mm
    mm size at D16 for sample. (Source: producer defined)
    Range of values
    Minimum:0.0024
    Maximum:16
    Units:millimeters
    D25 mm
    mm size at D25 for sample. (Source: producer defined)
    Range of values
    Minimum:0.0042
    Maximum:16
    Units:millimeters
    D50 mm
    mm size at D50 for sample. (Source: producer defined)
    Range of values
    Minimum:0.0121
    Maximum:16
    Units:millimeters
    D75 mm
    mm size at D75 for sample. (Source: producer defined)
    Range of values
    Minimum:0.0306
    Maximum:16
    Units:millimeters
    D84 mm
    mm size at D84 for sample. (Source: producer defined)
    Range of values
    Minimum:0.0406
    Maximum:16
    Units:millimeters
    D90 mm
    mm size at D90 for sample. (Source: producer defined)
    Range of values
    Minimum:0.051
    Maximum:16
    Units:millimeters
    D95 mm
    mm size at D95 for sample. (Source: producer defined)
    Range of values
    Minimum:0.0696
    Maximum:16
    Units:millimeters
    F-W Median Phi
    Phi size median for sample by Folk and Ward (1957) method. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:6.365696
    Units:Phi size
    F-W Mean Phi
    Phi size mean for sample by Folk and Ward (1957) method. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:6.522985
    Units:Phi size
    F-W Sorting Phi
    sorting for sample by Folk and Ward (1957) method. (Source: producer defined)
    Range of values
    Minimum:0.265162
    Maximum:4.608425
    Units:Phi size
    F-W Skewness Phi
    skewness for sample by Folk and Ward (1957) method. (Source: producer defined)
    Range of values
    Minimum:-49.194677
    Maximum:2.511769
    Units:Phi size
    F-W Kurtosis Phi
    kurtosis for sample by Folk and Ward (1957) method. (Source: producer defined)
    Range of values
    Minimum:-1.426263
    Maximum:6.855409
    Units:Phi size
    Inman Median Phi
    Phi size median for sample by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:6.365696
    Units:Phi size
    Inman Mean Phi
    Phi size mean for sample by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:-4
    Maximum:6.60163
    Units:Phi size
    Inman Sorting Phi
    sorting for sample by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:-0.007113
    Maximum:5.328223
    Units:Phi size
    Inman Skew 16-84 Phi
    skewness for sample (D16-D84) by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:-100.247495
    Maximum:3.385026
    Units:Phi size
    Inman Skew 05-95 Phi
    skewness for sample (D05-D95) by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:-237.546547
    Maximum:8.191214
    Units:Phi size
    Inman Kurtosis Phi
    kurtosis for sample by Inman (1952) method. (Source: producer defined)
    Range of values
    Minimum:-128.840998
    Maximum:7.191214
    Units:Phi size
    Trask Median mm
    mm size median for sample by Trask (1930) method. (Source: producer defined)
    Range of values
    Minimum:0.012126
    Maximum:16
    Units:millimeters
    Trask Mean mm
    mm size mean for sample by Trask (1930) method. (Source: producer defined)
    Range of values
    Minimum:0.017502
    Maximum:16
    Units:millimeters
    Trask Sorting mm
    sorting for sample by Trask (1930) method. (Source: producer defined)
    Range of values
    Minimum:0.62603
    Maximum:26.614545
    Units:millimeters
    Trask Skewness mm
    skewness for sample by Trask (1930) method. (Source: producer defined)
    Range of values
    Minimum:0.011343
    Maximum:18.281509
    Units:millimeters
    Trask Kurtosis mm
    kurtosis for sample by Trask (1930) method. (Source: producer defined)
    Range of values
    Minimum:-0.090665
    Maximum:3.227275
    Units:millimeters
    Mean Phi
    phi size mean for sample. (Source: producer defined)
    Range of values
    Minimum:-3.772325
    Maximum:6.422822
    Units:Phi size
    Mean mm
    mm size mean for sample. (Source: producer defined)
    Range of values
    Minimum:0.011656
    Maximum:13.66416
    Units:millimeters
    Variance Phi
    variance for sample. (Source: producer defined)
    Range of values
    Minimum:0.453325
    Maximum:24.475353
    Units:Phi size
    Std. Dev. Phi
    standard deviation for sample. (Source: producer defined)
    Range of values
    Minimum:0.673294
    Maximum:4.947257
    Units:Phi size
    Skewness Phi
    skewness for sample. (Source: producer defined)
    Range of values
    Minimum:-0.84991
    Maximum:9.338499
    Units:Phi size
    Kurtosis Phi
    kurtosis for sample. (Source: producer defined)
    Range of values
    Minimum:1.517574
    Maximum:101.764802
    Units:Phi size
    Entity_and_Attribute_Overview: The first line of the csv file is a header line.
    Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Amy E. East
    • Chauncey W. Anderson
    • Jennifer A. Curtis
    • Daniel R. W. Haught
    • Scott A. Wright
  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

    831-460-7401 (voice)
    pcmsc_data@usgs.gov

Why was the data set created?

Grain-size analyses on sediment samples from the Klamath estuary, northern California, can be used for characterizing the sedimentary environment in this coastal watershed.

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: 2020 (process 1 of 1)
    Sediment grain size was analyzed at the USGS laboratory in Santa Cruz, Calif. Particles coarser than 2 mm were sieved using a RO-TAP sieve shaker, and particles finer than 2 mm were analyzed with a Coulter laser particle-size analyzer (LPSA), after organic matter had been removed using a hydrogen peroxide solution. Person who carried out this activity:
    Angela Tan
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Sediment Laboratory Manager
    2885 Mission Street
    Santa Cruz, CA

    831-460-4747 (voice)
    atan@usgs.gov
  3. What similar or related data should the user be aware of?
    Folk, Robert Louis, and Ward, William C., 1957, Brazos River bar; a study in the significance of grain size parameters.

    Online Links:

    Other_Citation_Details:
    Folk, R.L., and Ward, W.C., 1957, Brazos River bar; a study in the significance of grain size parameters: Journal of Sedimentary Research, v. 27, n. 1, p. 3-26.
    Inman, Douglas Lamar, 1952, Measures for describing the size distribution of sediments.

    Online Links:

    Other_Citation_Details:
    Inman, D.L., 1952, Measures for describing the size distribution of sediments: Journal of Sedimentary Research, v. 22, n. 3, p. 125-145.
    Trask, Parker D., 1930, Mechanical analyses of sediments by centrifuge.

    Online Links:

    Other_Citation_Details:
    Trask, P.D., 1930, Mechanical analyses of sediments by centrifuge: Economic Geology, v. 26, n. 6, p. 581-599.

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

  1. How well have the observations been checked?
    Lab duplicates were analyzed for the samples indicated in the spreadsheet; no formal accuracy tests were conducted. Data values are within the expected range.
  2. How accurate are the geographic locations?
    A formal accuracy assessment of the horizontal positional information in the data set has not been conducted.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Dataset 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 values are within the expected values.

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 - ScienceBase
    Denver Federal Center, Building 810, Mail Stop 302
    Denver, CO

    1-888-275-8747 (voice)
    sciencebase@usgs.gov
  2. What's the catalog number I need to order this data set? These data are available in csv format (Klamath_Estuary_Sediment_GrainSize.csv) accompanied by CSDGM FGDC-compliant metadata.
  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?
    These data can be viewed with Microsoft Excel, LibreOffice, Apple Numbers, or any text-reading software.

Who wrote the metadata?

Dates:
Last modified: 18-Nov-2021
Metadata author:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Attn: PCMSC Science Data Coordinator
2885 Mission Street
Santa Cruz, CA

831-460-7401 (voice)
pcmsc_data@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

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