Laurie Bauer, NOAA/NOS/NCCOS/CCMA Biogeography Branch, 2010, Vieques, Puerto Rico Benthic Habitat Map - Ground Validation Sites: 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 1/298.257224.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
| Formal codeset | |
|---|---|
| Codeset Name: | Arbitrarily defined unique code |
| Codeset Source: | Specific to this field mission |
| Range of values | |
|---|---|
| Minimum: | 2008 October 7 |
| Maximum: | 2008 October 13 |
| Range of values | |
|---|---|
| Minimum: | 06:00:00am |
| Maximum: | 06:00:00pm |
| Value | Definition |
|---|---|
| GV | Ground Validation |
| Value | Definition |
|---|---|
| Drop Camera | SeaViewer Sea-Drop 950 underwater camera |
| Snorkel | NOAA scientist visually characterized habitat by free diving or surface swimming with a mask and snorkel |
| Other | Any other assessment technique, including inspection from the vessel deck with a "look bucket" or binoculars |
Unknown
Unknown
Unknown
Unknown
Unknown
301-713-3028 (voice)
301-713-4384 (FAX)
laurie.bauer@noaa.gov
The purpose of this survey data was to investigate areas of imagery where uncertainties existed on the photo interpreter's behalf during the decision making process of benthic habitat classification in Vieques. This information was incorporated into a fine-scale assessment of the status, abundance, and distribution of marine habitats of Vieques. The NOAA effort provides resource managers 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.
NOAA, 2008, GPS Data.
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 x171 (voice)
(301) 713-4388 (FAX)
Tim.Battista@noaa.gov
Person who carried out this activity:
301-713-3028 (voice)
301-713-4384 (FAX)
laurie.bauer@noaa.gov
The points in this thematic data layer were acquired by GPS data using a Trimble GeoXT receiver with a customized data dictionary designed to reflect the habitat classification scheme described in "Benthic Habitats of Vieques, Puerto Rico" (Bauer et al. 2010). All habitat determinations were made in the field by trained NOAA scientists, recorded in the GPS data logger and seamlessly transferred to ArcGIS shapefiles using Trimble Pathfinder Office software. Attributes are all expected to be correct.
The true positional accuracy of individual epics was determined to be within 1 m for 96% of the logged points. For each survey site, individual epics were averaged to generate a mean GPS point for each location.
137 field positions were occupied and habitat characterizations were conducted for ground validation during this work. These data were included in the mapping dataset as a GIS layer and the draft habitat map was edited based on this ground condition. All areas where uncertainty existed on the part of the photo interpreter during habitat delineation were investigated in the field. All data were collected and integrated into the mapped products as planned.
Data points with accompanying attribute information were collected with mapping-grade GPS receivers. The data were post processed for differential correction to the Continually Operating Reference System (CORS) station at St. Thomas, U.S. Virgin Islands (VITH). Site information was recorded in the field both in a data dictionary within the GPS receiver and on waterproof field sheets. A comparison between soft and hard copy data records were completed to ensure attribute collection consistency.
Furthermore, underwater video was recorded at each site to maintain a record of habitat condition. This video was reviewed by NOAA staff in the office to ensure correct habitat attribution was made in the field.
All errors were identified through these quality assurance techniques 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: 0.012 |
|---|---|
| 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