Grain size data from the Carmel River, central California, 2013 to 2021 (ver. 2.0, March 2022)

Frequently anticipated questions:

• What does this data set describe?
  1. How might this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  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?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How might this data set be cited?
   East, Amy, Harrison, Lee R., Smith, Douglas P., Bond, Rosealea, Logan, Joshua, Nicol, Colin, and Chow, Kaitlyn, 20220331, Grain size data from the Carmel River, central California, 2013 to 2021 (ver. 2.0, March 2022): data release doi:10.5066/P9HG8UDS, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

   Online Links:

   • https://doi.org/10.5066/P9HG8UDS
   • https://www.sciencebase.gov/catalog/item/61ef2f4ad34e8b818adb7bac

   This is part of the following larger work.
   East, Amy, Harrison, Lee R., Smith, Douglas P., Bond, Rosealea, Logan, Joshua, Nicol, Colin, and Chow, Kaitlyn, 2017, River-channel topography, grain size, and turbidity records from the Carmel River, California, before, during, and after removal of San Clemente Dam (ver. 2.0, March 2022): data release doi:10.5066/P9HG8UDS, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

   Online Links:

   • https://doi.org/10.5066/P9HG8UDS

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -121.93733
   East_Bounding_Coordinate: -121.70072
   North_Bounding_Coordinate: 36.54163
   South_Bounding_Coordinate: 36.42018
   

3. What does it look like?

   https://www.sciencebase.gov/catalog/file/get/61ef2f4ad34e8b818adb7bac?name=CarmelRiver_upstreamSH_2017.JPG&allowOpen=true (JPG)

   Photograph of Carmel River near Sleepy Hollow reach

4. Does the data set describe conditions during a particular time period?

   Beginning_Date: 2013

   Ending_Date: 2021

   Currentness_Reference:

   ground condition at the time the data were collected

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: Comma-separated values
   

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 (401)
   2. What coordinate system is used to represent geographic features?
      The map projection used is Transverse Mercator.
      

      Projection parameters:

      Scale_Factor_at_Central_Meridian: 0.9996
      Longitude_of_Central_Meridian: -123.0
      Latitude_of_Projection_Origin: 0.0
      False_Easting: 500000.0
      False_Northing: 0.0
      

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.001
      Ordinates (y-coordinates) are specified to the nearest 0.001
      Planar coordinates are specified in METERS
      The horizontal datum used is NAD83 (National Spatial Reference System 2011) (EPSG:1116).
      The ellipsoid used is GRS 1980 (EPSG:7019).
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257222101.
      
7. How does the data set describe geographic features?

   Carmel_2013to2021_GrainSize.csv

   Grain-size measurements from the Carmel River, from 2013 to 2021. (Source: Producer defined)

   riverKm

   Distance in kilometers along river, starting from ocean. (Source: Producer defined.)

   Range of values
   Minimum:	2.08
   Maximum:	32.69
   Units:	kilometers

   transect

   Name of transect along which data were collected. (Source: Producer defined.) A unique location identifier presented as an alpha-numeric code indicating the name of the survey site (BW=Berwick, CR=Control Reach, CRO=Crossroads, DDL=DeDampierre Lower, DDU=DeDampierre Upper, DM=Dam, RS=Reservoir, SC=San Carlos, SH=Sleepy Hollow, SR=Schulte Road) followed by a number indicating the survey transect.

   year

   The water year (October 1 to September 30) in which the measurement was made. (Source: Producer defined.)

   Range of values
   Minimum:	2013
   Maximum:	2021
   Units:	years

   date

   Date on which data were collected, in ISO 8601 date format (YYYY-MM-DD). (Source: Producer defined.)

   Range of values
   Minimum:	2013-06-18
   Maximum:	2021-06-25
   Units:	YYYY-MM-DD

   northing

   Northing coordinate of the midpoint of the transect on which grain sizes were measured. Coordinates are relative to the NAD83(2011) (North American Datum of 1983, National Spatial Reference System 2011) datum, projected in the Universal Transverse Mercator (UTM) Zone 10 North coordinate system, meters (EPSG:6339). (Source: Producer defined.)

   Range of values
   Minimum:	4031585.897
   Maximum:	4044232.377
   Units:	meters

   easting

   Easting coordinate of the midpoint of the transect on which grain sizes were measured. Coordinates are relative to the NAD83(2011) (North American Datum of 1983, National Spatial Reference System 2011) datum, projected in the Universal Transverse Mercator (UTM) Zone 10 North coordinate system, meters (EPSG:6339). (Source: Producer defined.)

   Range of values
   Minimum:	597564.235
   Maximum:	615884.818
   Units:	meters

   Particle_count_2_mm_bin

   Number of particles passing through the 2 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	92
   Units:	count (numeric value)

   Particle_count_2.8_mm_bin

   Number of particles passing through the 2.8 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	76
   Units:	count (numeric value)

   Particle_count_4_mm_bin

   Number of particles passing through the 4 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	29
   Units:	count (numeric value)

   Particle_count_5.6_mm_bin

   Number of particles passing through the 5.6 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	18
   Units:	count (numeric value)

   Particle_count_8_mm_bin

   Number of particles passing through the 8 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	18
   Units:	count (numeric value)

   Particle_count_11_mm_bin

   Number of particles passing through the 11 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	18
   Units:	count (numeric value)

   Particle_count_16_mm_bin

   Number of particles passing through the 16 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	30
   Units:	count (numeric value)

   Particle_count_22.6_mm_bin

   Number of particles passing through the 22.6 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	27
   Units:	count (numeric value)

   Particle_count_32_mm_bin

   Number of particles passing through the 32 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	40
   Units:	count (numeric value)

   Particle_count_45_mm_bin

   Number of particles passing through the 45 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	30
   Units:	count (numeric value)

   Particle_count_64_mm_bin

   Number of particles passing through the 64 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	34
   Units:	count (numeric value)

   Particle_count_90_mm_bin

   Number of particles passing through the 90 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	26
   Units:	count (numeric value)

   Particle_count_128_mm_bin

   Number of particles passing through the 128 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	25
   Units:	count (numeric value)

   Particle_count_180_mm_bin

   Number of particles passing through the 180 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	23
   Units:	count (numeric value)

   Particle_count_256_mm_bin

   Number of particles passing through the 256 mm aperture size (Source: Gravelometer)

   Range of values
   Minimum:	0
   Maximum:	67
   Units:	count (numeric value)

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Amy East
   • Lee R. Harrison
   • Douglas P. Smith
   • Rosealea Bond
   • Joshua Logan
   • Colin Nicol
   • Kaitlyn Chow
2. Who also contributed to the data set?
   Data collection was funded by U.S. Geological Survey, California State University Monterey Bay, and National Oceanic and Atmospheric Administration
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?

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: 2017 (process 1 of 2)

   Grain-size measurements were made at four to six transects per site using a 0.5 by 0.5 m sampling frame, with approximately 100 sediment-particle counts per transect. Each transect was defined by coordinates on the left and right sides of the river, and sediment grain sizes were measured at five equally spaced locations within the bankfull channel on the transect defined by those endpoint coordinates (see accompanying file within this data release for transect endpoint coordinates). Grain-size diameters were measured using a gravelometer. We report grain-size values to the next size class up in this spreadsheet, that is, the size gradation that the sediment grain passed through on the gravelometer frame, with the data being analogous to the percent passing in sieve analyses. Not all study sites were measured in all study years. The Rancho San Carlos (SC) site was not yet established in water year 2013; was established in water year 2014. Only one runoff event reached the site in 2014, and it happened just before the cross section was established. That flow was just enough to wet the channel from bank to bank, and it generated virtually no sediment transport or geomorphic work. Therefore, the grain-size measurements for the SC site during water year 2014 (on date 2014-03-07) were assumed to represent water-year 2013 values.

   Date: 2022 (process 2 of 2)

   Changes to version 2.0 of these data include adding grain-size measurements for 2018, 2019, 2020, and 2021; adding horizontal coordinates for approximate spatial reference; and reshaping the data file to facilitate grain-size distribution analysis. Data were pivoted, so that each site occupies one row and the counts for the grain-size are represented in a separate column. Person who carried out this activity:
   

   Joshua Logan

   U.S. Geological Survey, Pacific Coastal and Marine Science Center

   Physical Scientist

   2885 Mission Street

   Santa Cruz, CA
   

   US

   831-460-7519 (voice)

   831-427-4748 (FAX)

   jlogan@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?
   Data values are within expected reasonable values. The Rancho San Carlos (SC) site was not yet established in water year 2013; was established in water year 2014. Only one runoff event reached the site in 2014, and it happened just before the cross section was established. That flow was just enough to wet the channel from bank to bank, and it generated virtually no sediment transport or geomorphic work. Therefore, the grain-size measurements for the SC site during water year 2014 (on date 2014-03-07) were assumed to represent water-year 2013 values.
2. How accurate are the geographic locations?
   For each grain size measurement, horizontal coordinates are provided for approximate spatial reference only. The coordinates provided represent the exact midpoint of the transect between the right bank and left bank end points (see accompanying file within this data release for topographic survey transect endpoint coordinates), and do not represent the precise position where the grain size measurements were conducted (grain sizes were measured at five equally spaced locations within the current bankfull channel, the lateral position of which changes with river-channel evolution). As such, the horizontal positions provided for each grain size should be considered approximate only.
3. How accurate are the heights or depths?
   
4. Where are the gaps in the data? What is missing?
   Not all study sites were measured in all study years. The Rancho San Carlos (SC) site was not yet established in water year 2013; was established in water year 2014. 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.

How can someone get a copy of the data set?

1. Who distributes the data set? (Distributor 1 of 1)
   
   U.S. Geological Survey - ScienceBase

   U.S. Geological Survey - ScienceBase

   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? data are downloadable in .csv format (Carmel_2013to2021_GrainSize.csv) along with CMGDS 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?
   • Availability in digital form:

     Data format:	CSV file contains the grain size data in format comma-delimited text (version Microsoft Excel 2016 MSO (16.0.4549.1000) 64-bit) Size: 0.033
     Network links:	https://www.sciencebase.gov/catalog/file/get/61ef2f4ad34e8b818adb7bac https://www.sciencebase.gov/catalog/item/61ef2f4ad34e8b818adb7bac https://doi.org/10.5066/P9HG8UDS

   • Cost to order the data: None.

5. What hardware or software do I need in order to use the data set?
   The downloadable data file 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: 31-Mar-2022

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)