Laurie Bauer, NOAA/NOS/NCCOS/CCMA Biogeography Branch, 2010, Vieques, Puerto Rico Benthic Habitat Maps derived from 2006-2008 IKONOS imagery and orthophotography: NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS), Silver Spring, MD.Online Links:
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 Program, 2010, Benthic Habitats of Vieques, Puerto Rico: NOAA National Centers for Coastal Ocean Science, Silver Spring, MD.
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Planar coordinates are encoded using Coordinate Pair
Abscissae (x-coordinates) are specified to the nearest 0.000001
Ordinates (y-coordinates) are specified to the nearest 0.000001
Planar coordinates are specified in meters
The horizontal datum used is WGS_1984.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
| Formal codeset | |
|---|---|
| Codeset Name: | Specific code used for NOAA coral reef habitat maps |
| Codeset Source: | Described in "Benthic Habitats of Vieques, Puerto Rico" (Bauer et al. 2010) |
Area of feature in square meters.
Length of feature perimeter in meters
Unknown
Unknown
Unknown
Unknown
Unknown
Unknown
Unknown
Unknown
(301) 713 - 3028 (voice)
This product served as source information for a fine-scale assessment of the status, abundance, and distribution of marine habitats of Vieques. The NOAA effort provides resource managers and researchers 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, improved assessment of human-use impacts, and marine spatial planning to support alternative marine protected area boundary alternatives.
Bauer, L.J., M.S. Kendall, A.G. Zitello, and T. Battista. 2010., 2010, Benthic Habitats of Vieques, Puerto Rico: NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS), Silver Spring, MD.
Buja, Ken, 2009, NOAA Habitat Digitizer Extension: NOAA's Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Silver Spring, MD.Online Links:
Inc., Space Imaging , 2008, IKONOS Satellite Imagery: Space Imaging Inc., Thornton, CO.
3001, Inc., 2007, Orthophotography: 3001, Inc., 401 Dividend Drive, Suite K, Peachtree City, GA 30269.
Person who carried out this activity:
(301) 713 - 3028 (voice)
tim.battista@noaa.gov
Person who carried out this activity:
301-713-3028 (voice)
301-713-4384 (FAX)
laurie.bauer@noaa.gov
Person who carried out this activity:
301-713-3028 (voice)
301-713-4384 (FAX)
laurie.bauer@noaa.gov
Person who carried out this activity:
301-713-3028 (voice)
301-713-4384 (FAX)
laurie.bauer@noaa.gov
Person who carried out this activity:
301-713-4388 (voice)
matt.kendall@noaa.gov
Person who carried out this activity:
301-713-3028 (voice)
301-713-4384 (FAX)
laurie.bauer@noaa.gov
A comprehensive assessment was conducted to evaluate the thematic accuracy of the Vieques benthic habitat map. Thematic accuracy was characterized for major and detailed geomorphological structure, major and detailed biological cover, and percent coral cover. The independent accuracy assessment revealed successful overall map accuracies of over 90% for major structure, and over 80% for detailed structure and cover classes.
3001, Inc., the imagery acquiring firm, reported 1:4,800 scale RMSE accuracy of 1.25 m for the orthophotography, but NOAA calculations with known ground control locations resulted in RMSE accuracy of 2.15 m. It is believed that polygon horizontal accuracies are inherited from the source imagery.
Delineation of all habitat boundaries was conducted with the image scale at 1:4,000. This ensured that the level of detail produced by the photo interpreter was uniform throughout the project. The minimum mapping unit (MMU) for identifying habitats or features was 1,000 square meters. The software utilized in this project was designed to alert the photo interpreter each time a polygon was drawn smaller than the a MMU; at which point the polygon was then aggregated with the most logical adjacent polygon.
IKONOS sattelite imagery was the primary imagery source used for delineating benthic habitats in Vieques. IKONOS satellite imagery was geo-positioned, pan sharpened and deglinted by NOAA. During the digitizing process, image stretches and manipulating image contrast, brightness and color balance were performed in ArcGIS to enhance features in the processed imagery. True-color digital orthophotography obtained with an ADS40 digital sensor was the secondary imagery source used for delineating benthic habitats of Vieques. Orthophotography provided by 3001, Inc., on contract to the U.S. Army Corps of Engineers, was obtained in September and October of 2007 with a one foot ground sample distance (GSD), flight height of 8,650 feet, and 30% sidelap.
GIS topologic quality was established by executing ArcGIS extension routines that check for: overlapping polygons, multipart polygons, sliver polygons and void polygons. Additionally checks for adjacent polygons with the same habitat attributes were completed. All errors were identified and corrected. This file is believed to be logically consistent.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints: Not for navigation.
301-713-3028 (voice)
301-713-4384 (FAX)
laurie.bauer@noaa.gov
Downloadable Data
The National Oceanic and Atmospheric Administration (NOAA) National Centers for Coastal Ocean Science (NCCOS) is publishing this data on their website. NCCOS Biogeography Branch does not guarantee the accuracy of the geographic features or attributes. Please see the written report and metadata records for each data set for complete information on the source, limitations, and proper use.
| Data format: | ESRI Shapefile Size: 5.672 |
|---|---|
| Network links: |
<http://ccma.nos.noaa.gov/ecosystems/coralreef/vieques/data.aspx> |
Contact NOAA for distribution options (see Distributor).
301-713-3028 (voice)
301-713-4384 (FAX)
laurie.bauer@noaa.gov