Predicted Habitat Suitability for Porites Corals in the Au'au Channel Region

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Frequently anticipated questions:


What does this data set describe?

Title:
Predicted Habitat Suitability for Porites Corals in the Au'au Channel Region
Abstract:
This raster denotes predicted habitat suitability for Porites in the Au'au Channel region. Maximum Entropy (MaxEnt) modeling software was used to create this ensemble model, which is an average of 10 model replicates. MaxEnt works by analyzing the distribution of environmental variables where species are present, so it can find other areas that meet all of the same environmental constraints. Georeferenced records containing information about mesophotic coral occurrence and environmental predictors describing the seafloor's depth, vertical structure, available light, surface temperature, currents and distance from shoreline were used to train MaxEnt. Model performance and accuracy were assessed using Receiver Operating Characteristic (ROC) Area Under the Curve (AUC) and a randomly chosen, spatially independent data subset. The average test AUC for this predictive ensemble model was 0.9, and the overall accuracy of this ensemble predictive model was 73.1% (when the habitat suitability threshold = 0.25). The habitat suitability threshold of 0.25 represents the sum of the maximum ROC sensitivity and specificity values. Extreme care should be taken when selecting a habitat suitability threshold because it affects the probability of correctly identifying the presence and absence of mesophotic corals. For more information describing how this predictive surface was developed and its limitations, please see the following website: <http://ccma.nos.noaa.gov/ecosystems/sanctuaries/hwnms/>
  1. How should this data set be cited?

    Bryan Costa, NOAA National Centers for Coastal Ocean Science (NCCOS) Biogeography Branch, Contractor (Geospatial Scientist), 20120601, Predicted Habitat Suitability for Porites Corals in the Au'au Channel Region.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -157.091511
    East_Bounding_Coordinate: -156.289798
    North_Bounding_Coordinate: 21.066112
    South_Bounding_Coordinate: 20.547671

  3. What does it look like?

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

    Beginning_Date: 01-Jan-2004
    Ending_Date: 31-Dec-2010
    Currentness_Reference:
    This model predicts the present day distribution of all mesophotic corals. It was derived using underwater video and environmental data collected between 2004 and 2010.

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

    Geospatial_Data_Presentation_Form: raster digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Raster data set. It contains the following raster data types:

      • Dimensions 5624 x 8269, type Pixel

    2. What coordinate system is used to represent geographic features?

      The map projection used is NAD 1983 UTM Zone 4N.

      Projection parameters:
      Scale_Factor_at_Central_Meridian: 0.9996
      Longitude_of_Central_Meridian: -159.0
      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 0.000000002220024164500956
      Ordinates (y-coordinates) are specified to the nearest 0.000000002220024164500956
      Planar coordinates are specified in meter

      The horizontal datum used is D North American 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 1/298.257222101.

  7. How does the data set describe geographic features?


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Please acknowledge the National Oceanic & Atmospheric Administration (NOAA) National Centers for Coastal Ocean Science (NCCOS) Biogeography Branch, NOAA Office of National Marine Sanctuaries (ONMS) Hawaiian Islands Humpback Whale National Marine Sanctuary when using this dataset.

  3. To whom should users address questions about the data?

    NOAA National Centers for Coastal Ocean Science (NCCOS) Biogeography Branch
    Attn: Bryan Costa
    Contractor (Geospatial Scientist)
    1305 East West Highway, N-SCI-1, SSMC 4, #9232
    Silver Spring, Maryland 20910
    US

    (301)713-3028 (voice)
    bryan.costa@noaa.gov


Why was the data set created?

This dataset describes the predicted distribution of Porites in the Au_au Channel region in the Main Hawaiian Islands (MHI). Mesophotic hard corals are light-dependent corals adapted to the low light conditions at approximately 30 to 150 m in depth. Several physical factors potentially influence their spatial distribution, including aragonite saturation, alkalinity, pH, currents, water temperature, hard substrate availability and the availability of light at depth. Mesophotic corals and mesophotic coral ecosystems (MCEs) have increasingly been the subject of scientific study because they are being threatened by a growing number of anthropogenic stressors. They are the focus of this spatial modeling effort because the Hawaiian Islands Humpback Whale National Marine Sanctuary (HIHWNMS) is exploring the expansion of its scope-beyond the protection of the North Pacific Humpback Whale (Megaptera novaeangliae)-to include the conservation and management of these ecosystem components. The present study helps to address this need by examining the distribution of mesophotic corals in the Au'au Channel region.


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?


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:
These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. No warranty, expressed or implied, is made by the U.S. Government as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Governmentin the use of these data or related materials.

  1. Who distributes the data set? (Distributor 1 of 3)

    Pacific Islands Benthic Habitat Mapping Center
    1125B Ala Moana Blvd.
    Honolulu, Hawaii 96814
    US

    808-983-3776 (voice)

  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. No warranty, expressed or implied, is made by the U.S. Government as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Governmentin the use of these data or related materials.

  4. How can I download or order the data?


  1. Who distributes the data set? (Distributor 2 of 3)

    NOAA National Centers for Coastal Ocean Science (NCCOS) Biogeography Branch
    Attn: Bryan Costa
    Contractor (Geospatial Scientist)
    1305 East West Highway, N-SCI-1, SSMC 4, #9232
    Silver Spring, Maryland 20910
    US

    (301)713-3028 (voice)
    bryan.costa@noaa.gov

  2. What's the catalog number I need to order this data set?

    Offline Data

  3. What legal disclaimers am I supposed to read?

    These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. No warranty, expressed or implied, is made by the U.S. Government as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Governmentin the use of these data or related materials.

  4. How can I download or order the data?


  1. Who distributes the data set? (Distributor 3 of 3)

    NOAA Office of National Marine Sanctuaries (ONMS) Hawaiian Islands Humpback Whale National Marine Sanctuary
    Attn: Joey Lecky
    GIS Technician
    6600 Kalaniana'ole Hwy
    Honolulu, Hawaii 96825
    US

    808-397-2634 (voice)
    joey.lecky@noaa.gov

  2. What's the catalog number I need to order this data set?

    Offline Data

  3. What legal disclaimers am I supposed to read?

    These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. No warranty, expressed or implied, is made by the U.S. Government as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Government in the use of these data or related materials.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 02-May-2013
Metadata author:
NOAA National Centers for Coastal Ocean Science (NCCOS) Biogeography Branch
Attn: Bryan Costa
Contractor (Geospatial Scientist)
1305 East West Highway, N-SCI-1, SSMC 4, #9232
Silver Spring, Maryland 20910
US

(301)713-3028 (voice)
bryan.costa@noaa.gov

Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


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