Coral Point Count (CPCe) summary data by transect, West Hawaii, 2010-2011

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Frequently anticipated questions:


What does this data set describe?

Title:
Coral Point Count (CPCe) summary data by transect, West Hawaii, 2010-2011
Abstract:
Coral Point Count with Excel extensions (CPCe; Kohler and Gill, 2006) was used to help calculate percent of coral cover or other benthic substrates from a randomly selected subset of seafloor photographs collected on the west Hawaii Island coast.
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=K110BI https://cmgds.marine.usgs.gov/fan_info.php?fan=K210BI https://cmgds.marine.usgs.gov/fan_info.php?fan=B0611BI
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?
    Grossman, Eric E, Marrack, Elizabeth C, Kramer, Lindsey K, and Most, Rebecca, 2019, Coral Point Count (CPCe) summary data by transect, West Hawaii, 2010-2011: data release DOI:10.5066/F74X569K, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    Grossman, Eric E, Marrack, Elizabeth C, Kramer, Lindsey K, and Most, Rebecca, 2019, Coral cover and health determined from seafloor photographs and diver observations, West Hawaii, 2010-2011: data release DOI:10.5066/F74X569K, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -156.03821
    East_Bounding_Coordinate: -155.84901
    North_Bounding_Coordinate: 19.88809
    South_Bounding_Coordinate: 19.41493
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/59b18cb3e4b020cdf7d957b2?name=WestHawaiiCoralTransectsMap.jpg&allowOpen=true (JPG)
    map of transect locations
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 19-Jun-2010
    Ending_Date: 08-Nov-2011
    Currentness_Reference:
    ground condition at time data 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 (63)
    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 1.0E-6. Longitudes are given to the nearest 1.0E-6. Latitude and longitude values are specified in decimal degrees. The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257223563.
  7. How does the data set describe geographic features?
    CPCe_Summary_June2010.csv, CPCe_Summary_Oct2010.csv, CPCe_Summary_Oct2011.csv
    Table of data in CSV format (Source: U.S. Geological Survey)
    Transect
    Alphanumeric code in XX# format, where the characters designate the location and the number (1, 2, or 3) denotes the randomly placed transect at that location. Samples were not collected at every location during each time period, therefore datasets may not use all of the listed codes. (Source: U.S. Geological Survey)
    ValueDefinition
    AGAlula (near the mouth of Honaunau Harbor)
    FFFreeze Face
    HBHonaunau Bay
    HOHonaunau Outer
    KCKaloko Cut
    KOKaloko Outer
    KPKailua Pier
    KWKeawaiki
    KWNKeawaiki North
    KWSKeawaiki South
    NONoio Point
    PUPuako
    Date_Time
    Date in MM/DD/YY format and local (Hawaii) time in 24-hr format (Source: U.S. Geological Survey)
    Range of values
    Minimum:6/19/10 11:15
    Maximum:11/8/11 10:56
    Units:MM/YY/DD 24:00
    Latitude
    Latitude in decimal degrees (Source: U.S. Geological Survey)
    Range of values
    Minimum:19.41493
    Maximum:19.88809
    Units:decimal degrees
    Longitude
    Longitude in decimal degrees (Source: U.S. Geological Survey)
    Range of values
    Minimum:-156.03821
    Maximum:-155.84901
    Units:decimal degrees
    Start_Depth_ft
    Depth at beginning of transect in feet below water surface at time of survey (Source: U.S. Geological Survey)
    Range of values
    Minimum:6
    Maximum:22
    Units:feet
    Bearing
    Direction that the transect headed from the starting point in degrees, where 0 is due North (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:340
    Units:degrees
    Coral
    Percent of live coral cover. Other columns contain coral species breakdown. (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Octocoral
    Percent of octocoral cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Turf_algae
    Percent of turf algae cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Coralline_crust
    Percent of crustose coralline algae cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Cyanobacteria
    Percent of cyanobacteria cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Recently_Dead_Coral
    Percent of recently dead coral cover (coral species not determined) (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Macroalgae
    Percent of macroalgae cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Other
    Percent of other cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Porites_rus
    Percent of live Porites rus coral cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Porites_lobata
    Percent of live Porites lobata coral cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Porites_lutea
    Percent of live Porites lutea coral cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Porites_compressa
    Percent of live Porites compressa coral cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Pocillopora_meandrina
    Percent of live Pocillopora meandrina coral cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Pavona_varians
    Percent of live Pavona varians coral cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Leptastrea_beckwensia
    Percent of live Leptastrea beckwensia coral cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Montipora_capitata
    Percent of live Montipora capitata coral cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    Montipora_patula
    Percent of live Montipora patula coral cover (Source: U.S. Geological Survey)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    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)
    • Eric E Grossman
    • Elizabeth C Marrack
    • Lindsey K Kramer
    • Rebecca Most
  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?

As part of an integrated study to assess projected impacts of land-use and climate change on nearshore habitat conditions and coral health, the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center (PCMSC) initiated an investigation of nearshore water properties and coral health indicators along the west Hawaii Island coast. The project and data generated provide fundamental baseline data to track change and important boundary condition data to interpret characteristics of coral health related to water quality along a gradient in exposure to urban impacts and submarine groundwater discharge

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: 2016 (process 1 of 1)
    Using Coral Point Count (CPCe; Kohler and Gill, 2006) software, forty-five computer generated random points were placed over each subset digital photo image, the coral species or other benthic type (bare rock, sand, turf algae, macroalgae, coralline crust) located under each point was identified, and the percent of each cover type was calculated. Results from photo-analyses along each transect are summarized and presented here in CSV format.
  3. What similar or related data should the user be aware of?
    Kohler, K.E., and Gill, S.M., 2006, Coral Point Count with Excel extensions (CPCe): A Visual Basic program for the determination of coral and substrate coverage using random point count methodology: journal article Computers and Geosciences, vol. 32, n. 9, p. 1,259-1,269, Elsevier, Netherlands.

    Online Links:


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?
    Stated horizontal accuracy of the Garmin GPS is +/- 3.2 m.
  3. How accurate are the heights or depths?
    Stated vertical accuracy of the Suunto Dive Computer is+/- 0.3 m.
  4. Where are the gaps in the data? What is missing?
    Data are complete as presented. 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 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 comma-separated format (CPCe_Summary_June2010.csv, CPCe_Summary_Oct2010.csv, and CPCe_Summary_Oct2011.csv), along with a map of transect locations (KAHO_DR_Transects.png) and CSDGM FGDC-compliant metadata (CPCe_Summary_metadata.xml).
  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 any text-reader software.

Who wrote the metadata?

Dates:
Last modified: 14-Feb-2019
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/pacific_islands/hawaii/CPCe_Summary_metadata.faq.html>
Generated by mp version 2.9.49 on Tue Feb 19 10:39:50 2019