High Resolution Imagery of Howland Island Coral Reef Systems Prior to and During Suspected Bleaching Events

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Frequently anticipated questions:


What does this data set describe?

Title:
High Resolution Imagery of Howland Island Coral Reef Systems Prior to and During Suspected Bleaching Events
Abstract:
This dataset is a collection of imagery of Howland Island coral reef systems. They are pairs of imagery where one image was acquired during a suspected bleaching event. The second is a control image taken at some point prior to the event. The images are co-located and radiometrically calibrated for comparison. The difference images are analyzed for evidence of bleaching.

Additional information on methodology can be found here: <http://www.ngdc.noaa.gov/dmsp/coral/methodology.html>

  1. How should this data set be cited?

    Chris Elvidge National Oceanic and Atmospheric Administration (NOAA) / National Geophysical Data Center (NGDC) 325 Broadway Boulder CO 80305, 200908, High Resolution Imagery of Howland Island Coral Reef Systems Prior to and During Suspected Bleaching Events.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -176.62
    East_Bounding_Coordinate: -176.6
    North_Bounding_Coordinate: 0.82
    South_Bounding_Coordinate: 0.78
    Description_of_Geographic_Extent: Howland Island in the US Minor Outlying Islands in the Pacific.

  3. What does it look like?

    <http://www.ngdc.noaa.gov/dmsp/coral/images/howland/05AUG15222326-M2AS-005648690040_01_P001-BROWSE.JPG> (JPEG)
    Quickbird image of Howland Island

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

    Calendar_Date: 09-Dec-2003
    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?

    2. What coordinate system is used to 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? (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?


Why was the data set created?

These data were analyzed with the purpose of developing a semi-automated quantitative measure of coral reef bleaching.


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: None

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

    NOAA, National Geophysical Data Center
    Attn: Chris Elvidge
    325 Broadway
    Boulder, CO 80305

    303-497-6121 (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?

    NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA and NODC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 05-Sep-2014
Last Reviewed: 06-Aug-2009
Metadata author:
NOAA, National Geophysical Data Center
Attn: Chris Elvidge
325 Broadway
Boulder, CO 80305

303-497-6121 (voice)

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


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