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OAS accession Detail for 0089466, meta_version: 1. Current meta_version is: 6
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accessions_id: 0089466 | archive
Title: NOAA Coastal Services Center Coastal Remote Sensing Program C-CAP (NOAA Coastal Change Analysis Program) Benthic Habitat Data, Willapa Bay, Washington 1992 (NODC Accession 0089466))
Abstract: In June 1995, the Columbia River Estuary Study Taskforce (CREST)
acquired 295 true color aerial photographs (1:12,000) of Willapa Bay,
Washington, from the State of Washington Department of Transportation
(WDOT), suitable for the interpretation of submerged rooted aquatic
vascular plant populations. In August 1995, field surveys were conducted by a team composed of staff from Oregon State University, CREST, and the Washington Department of Natural Resources, for spectral signature development and verification as well as habitat observation. The submerged plant populations were interpreted and mapped from the photographs and transferred onto State of Washington 1:12,000 Orthophoto maps (USGS 7.5' quadrangle). The interpretations were digitized into a geographic information system (GIS) for the creation of a habitat polygon map. All interpretation, digitization and photography acquisition were according to stringent parameters detailed in the Coastal Change Analysis Program (C-CAP) Protocol (NMFS Technical Document 123). Two datasets were used as ancillary information to complement the interpreted habitat polygons. In 1996, color aerial videography was obtained from WDOT for post mapping verification and accuracy assessments. Marine Resources Consultants, Inc. and the University of Washington collected videography from 29 underwater transects to verify the deep-water edge of selected seagrass beds in the southern portion of the bay. The date, time, geographic coordinates and depth were updated every 2 to 4 seconds and recorded directly on the videotape images. Latitude and longitude were provided by a differentially corrected global positioning system (GPS). The initial presence/absence map of SAV produced by CREST was later segmented by depth to discriminate between two very different seagrass communities and support field accuracy assessment. Final field verification of the data by personnel from CREST and the NOAA Coastal Services Center was conducted in the Summer of 1997. The benthic data is classified according to the System for Classification of Habitats in Estuarine and Marine Environments (SCHEME). This system is fully described in Development of a System for Classification of Habitats in Estuarine and Marine Environments (SCHEME) for Florida, Report to U.S. EPA - Gulf of Mexico Program, Florida Fish and Wildlife Conservation Commission, Florida Marine Research Institute. Review Draft 12/04/02.
Date received: 20030504
Start date: 19950628
End date: 19950628
Seanames:
West boundary: -124.0962
East boundary: -123.7535
North boundary: 46.7546
South boundary: 46.3654
Observation types: aerial photography, benthic, biological, composition & location, derived products, GIS product, imagery, survey, survey - biological
Instrument types: camera, deprecated, photograph
Datatypes: BENTHIC COMMUNITIES, biological data, BOTTOM TYPE, HABITAT, HABITAT - BENTHIC, SEA GRASSES - DENSITY
Submitter: Ball, Anne O'Donnell
Submitting institution: US DOC; NOAA; NOS; Coastal Services Center
Collecting institutions: US DOC; NOAA; NOS; Coastal Services Center
Contributing projects: C-CAP, COASTAL
Platforms:
Number of observations:
Supplementary information:
Availability date: 20120528
Metadata version: 1
Keydate: 2012-05-16 19:57:40+00
Editdate: 2012-05-16 22:27:56+00