Palmyra Atoll Quickbird II Seafloor Mosaic (1.8m)

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Frequently anticipated questions:

What does this data set describe?

Title: Palmyra Atoll Quickbird II Seafloor Mosaic (1.8m)
Abstract:
Benthic habitat maps of the nearshore marine environment of Pamyra Atoll were created by visual interpretation of remotely sensed imagery. The objective of this effort, conducted by NOAA's Center for Coastal Monitoring and Assessment - Biogeography Branch in partnership with The Nature Conservancy (TNC) and Analytical Laboratories of Hawaii (ALH), was to provide spatially-explicit information on the habitat types, biological cover and live coral cover of Palmyra Atoll's coral reef ecosystem. 0.61m panchromatic and 2.44m multi-spectral data from the QuickBird 2 satellite sensor were purchased for the mapping area. Photo-interpreters accurately and reliably delineated boundaries of features from this QuickBird 2 imagery as they appeared on the computer monitor using a software interface.
  1. How might this data set be cited?
    Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch, 2010, Palmyra Atoll Quickbird II Seafloor Mosaic (1.8m): NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS), Silver Spring, MD.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -162.182591
    East_Bounding_Coordinate: -161.983862
    North_Bounding_Coordinate: 5.908798
    South_Bounding_Coordinate: 5.854872
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 27-Sep-2006Time_of_Day: 213627
    Currentness_Reference: ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: remote-sensing image
  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 3252 x 12254, type Pixel
    2. What coordinate system is used to represent geographic features?
      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 3
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -165.000000
      Latitude_of_Projection_Origin: 0.000000
      False_Easting: 500000.0
      False_Northing: 0.000000
      Planar coordinates are encoded using Row and Column
      Abscissae (x-coordinates) are specified to the nearest 1.0
      Ordinates (y-coordinates) are specified to the nearest 1.0
      Planar coordinates are specified in meters
      The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.
  7. How does the data set describe geographic features?
    Spectral Bands
    These images contain 3 spectral bands (positioned, pan-sharpened and de-glinted). (Source: Tim Battista)
    Band 1
    Blue (pansharpened, positioned, and deglinted) (Source: Tim Battista) Image processing results
    Band 2
    Green (pansharpened, positioned, and deglinted) (Source: Tim Battista) Image processing results
    Band 3
    Red (pansharpened, positioned, and deglinted) (Source: Tim Battista) Image processing results

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?
  3. To whom should users address questions about the data?
    National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch
    Attn: Mapping Data Manager
    1305 East West Highway, N/SCI-1
    Silver Spring, MD

    301-713-3028 (voice)
    301-713-4384 (FAX)
    tim.battista@noaa.gov
    Hours_of_Service: 0800 - 1700, Monday to Friday, EST

Why was the data set created?

This product served as source information for a fine-scale assessment of the status, abundance, and distribution of marine habitats of Palmyra Atoll. The NOAA effort provides The Nature Conservancy with increased technical capacity for ocean exploration, management, and stewardship. Direct implications to management measures include evaluation of management efficacy, a spatial framework for improved monitoring sampling design, and improved assessment of human-use impacts.

How was the data set created?

  1. From what previous works were the data drawn?
    DigitalGlobe, Inc. (source 1 of 1)
    DigitalGlobe, Inc., 20100308, Product Catalog ID: 9010010054796200: DigitalGlboe, Inc., 1000 Wilson Boulevard, Arlington, VA 22209.

    Online Links:

    Type_of_Source_Media: Hard drive
    Source_Contribution:
    The satellite imaging company DigitalGlobe, Inc. provided raw, NITF files for four multispectral bands and a panchromatic file, along with rational polynomial coefficients (RPC's) for the five scenes.
  2. How were the data generated, processed, and modified?
    Date: 2010 (process 1 of 3)
    Bands 1 - 7: PCI OrthoEngine Pansharpening module was employed to create a high-resolution color image to be used for visual interpretation by NOAA scientists. It was applied to the QuickBird 2 imagery to increase the spatial resolution of the 2.44 m multispectral data to the panchromatic data resolution of 0.61 m. Person who carried out this activity:
    Mapping Data Manager
    National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch
    Lead Scientist
    1305 East West Highway
    Silver Spring, MD

    301-713-3028 (voice)
    tim.battista@noaa.gov
    Date: 2010 (process 2 of 3)
    Bands 1 - 7: Geo-referencing of the imagery was performed using PCI OrthoEngine module. The pansharpened PIX (PCI Geomatica native format) files were orthorectified using stereo ground control point positioning along with the Rational Functions model extracted from the original NITF files. Person who carried out this activity:
    Mapping Data Manager
    National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch
    Lead Scientist
    1305 East West Highway
    Silver Spring, MD

    301-713-3028 (voice)
    tim.battista@noaa.gov
    Date: 2010 (process 3 of 3)
    Bands 5 - 7: The method for removal of sun glint described in Hedley et al. (2005) was applied to the pansharpened, orthorectified QuickBird 2 imagery to remove specular reflection from the sea surface. Reflection of solar radiation on non-flat water surfaces often results in areas of bright white sun glint in remotely sensed imagery. Typically, sun glint forms bands of white along wave edges on the windward side of nearshore environments. Sun glint can obscure bottom features and should be removed before habitat delineation. This is accomplished in this methodology by applying the ratio of reflectance of the near-infrared and visible band to each cell in the scene. Person who carried out this activity:
    Mapping Data Manager
    National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch
    Lead Scientist
    1305 East West Highway
    Silver Spring, MD

    301-713-3028 (voice)
    tim.battista@noaa.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?
  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?
    This imagery was processed using standard PCI Geomatics tools, and no major omissions or generalizations are believed to have occured.
  5. How consistent are the relationships among the observations, including topology?
    This file is believed to be logically consistent.

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: None
  1. Who distributes the data set? (Distributor 1 of 1)
    National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch
    Attn: Tim Battista
    1305 East West Highway, N/SCI-1
    Silver Spring, MD

    301-713-3028 (voice)
    301-713-4384 (FAX)
    tim.battista@noaa.gov
    Hours_of_Service: 0800 - 1700, Monday to Friday, EST
  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 (NOAA). 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. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA 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 NOAA in the use of these data or related materials.
  4. How can I download or order the data?
  5. Is there some other way to get the data?
    Contact NOAA for distribution options (see Distributor).

Who wrote the metadata?

Dates:
Last modified: 15-Dec-2024
Last Reviewed: 08-Dec-2011
To be reviewed: 2015
Metadata author:
Mapping Data Manager
National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch
Lead Scientist
1305 East West Highway
Silver Spring, MD

301-713-3028 (voice)
tim.battista@noaa.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata (FGDC-STD-012-2002)
Generated by mp version 2.9.44 on Wed Jan 22 22:12:27 2025