Topographic survey transect endpoint coordinates along the Carmel River, central California, 2013 to 2021 (ver. 2.0, March 2022)

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Frequently anticipated questions:

What does this data set describe?

Title:
Topographic survey transect endpoint coordinates along the Carmel River, central California, 2013 to 2021 (ver. 2.0, March 2022)
Abstract:
This dataset contains the easting, northing, and elevation values of the river-right and river-left transect endpoint reference benchmarks (RBM and LBM) from survey transects at 10 survey reaches along the Carmel River, central California. Topographic surveys were completed on these transects during eight summer surveys (in 2013, 2014, 2015, 2016, 2017, 2019, 2020 and 2021). See accompanying file within this data release for elevation measurements. All data were collected in NAD83 UTM10N horizontal coordinates and NAVD88 Geoid 12B vertical coordinates, in units of meters. The positions of some reference marks were selected using only horizontal reference; the elevation values for these marks are set to a no data value of "NULL" in the data file.
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=L2513CA https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-643-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2015-638-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-638-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-635-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-631-FA
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  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, Topographic survey transect endpoint coordinates along 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:

    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:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -121.91169
    East_Bounding_Coordinate: -121.70534
    North_Bounding_Coordinate: 36.53860
    South_Bounding_Coordinate: 36.42237
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/5a2ec0ffe4b08e6a89d3f9da?name=Carmel_2013to2021_TransectEndpointsMap.png&allowOpen=true (png)
    Transect endpoint locations of topographic surveys (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)
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 2021
    Currentness_Reference:
    ground condition for last survey date
  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 (116)
    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 North American Datum 1983.
      The ellipsoid used is GRS 1980.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.2572221.
      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Datum_Name: North American Vertical Datum of 1988
      Altitude_Resolution: 0.001
      Altitude_Distance_Units: meters
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates
  7. How does the data set describe geographic features?
    Carmel_2013to2017_TransectEndpointsCoords.csv
    Endpoint coordinates and elevation for the measurement sites along the Carmel River. (Source: Producer defined)
    SITE
    Site and transect number (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.
    CODE
    A designation for benchmark river side. (Source: Producer defined.)
    ValueDefinition
    LBMLeft benchmark, where left is the left-hand side facing downstream.
    RBMRight benchmark, where left is the right-hand side facing downstream.
    NORTHING
    Northing coordinate of data point 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: North American Datum 1983 UTM Zone 10 North.)
    Range of values
    Minimum:4031573.861
    Maximum:4044241.617
    Units:meters
    EASTING
    Easting coordinate of data point 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: North American Datum 1983 UTM Zone 10 North.)
    Range of values
    Minimum:597560.094
    Maximum:615891.884
    Units:meters
    ELEVATION
    Elevation measurement. (Source: North American Vertical Datum 1988, Geoid 12B. For reference marks which were selected using only horizontal reference, the elevation value is defined as "NULL".[CSA1])
    Range of values
    Minimum:4.454
    Maximum:169.475
    Units:meters

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?

Data were collected to study changes to the Carmel River, central California, associated with the removal of the San Clemente Dam.

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: 2021 (process 1 of 2)
    Topographic measurements were made at four to six transects per site using a total station at sites CR, RS, DM and SH and with an auto level and survey rod at DDU, DDL, BW, SR, SC and CRO. This dataset contains the easting, northing, and elevation values of the right and left endpoint reference marks of each transect. All data were collected in NAD83 UTM10N horizontal coordinates and NAVD88 Geoid 12B vertical coordinates, in units of meters. 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
    Date: 2022 (process 2 of 2)
    Changes to version 2.0 of data release: -Adjusted positions of the following reference marks to account for changes in the orientation of the river channel: - CRO5, LBM - CRO4, LBM and RBM - CRO3, LBM and RBM - CRO2, LBM - SC2, LBM - SH3, RBM - SH1, LBM - DM6, LBM - DM5, LBM - DM3, LBM - DM1, LBM - RS5, LBM - RS4, LBM - RS3, LBM - RS2, LBM - RS1, LBM - CR5, LBM - CR3, LBM - CR2, LBM - Added reference marks for new transects: - RS3B, LBM and RBM - RS5B, LBM and RBM 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?
    No formal attribute accuracy tests were conducted
  2. How accurate are the geographic locations?
    Initial survey control for all topographic transects was established using static GPS occupations, which have an estimated horizontal accuracy of around 1.5 cm.
  3. How accurate are the heights or depths?
    Initial survey control for all topographic transects was established using static GPS occupations, which have an estimated vertical accuracy of less than 3 cm. For sites CR, RS, DM and SH vertical measurements were collected using a total station. Repeat check measurements conducted during subsequent surveys on points with established coordinates suggest a vertical precision of less than 2 cm. For sites DDU, DDL, BW, SR, SC and CRO vertical measurements were collected with an auto level and survey rod. The vertical precision of these measurements is estimated to be around 1 cm.
  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. At most survey sites, there are six transects. However, there are only four transect at DeDampierre Lower (DDL) and Schulte Road (SR). 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?

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 (USGS), California State University Monterey Bay (CSUMB), and the National Oceanic and Atmospheric Administration (NOAA) as the originators 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
    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_TransectEndpointsCoords.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?
  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)
This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P9HG8UDS/Carmel_2013to2021_TransectEndpointsCoords_metadata.faq.html>
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