47994
Willapa Bay, Washington Benthic Habitats 1995 Geoform
wa_wb95-geoform_Metadata
Data Set
Published / External
37225
Benthic
Project
Completed
2015
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 Office for Coastal Management 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."
Original contact information:
Contact Org: NOAA Office for Coastal Management
Phone: 843-740-1202
Email: coastal.info@noaa.gov
The purpose of this project was to contribute to national baseline data on benthic habitat and provide seagrass distribution data to local resource managers. Of particular concern in this study was the distribution of the seagrass, Zostera japonica, on the intertidal mudflats and the expansion of Spartina alterniflora, a threat to a thriving local oyster fishery. The black brant, an endangered migratory waterfowl, is dependent on healthy seagrass beds as a food resource. In addition, salmon has high recreational and commercial value and is also dependent on healthy seagrass beds.
10149
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY
Theme
ISO 19115 Topic Category
environment
Spatial
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON
Theme
C-CAP
Theme
CMECS
Theme
Coastal Change Analysis Program
Theme
Coastal and Marine Ecological Classification Standard
Theme
Environmental Monitoring
Theme
Geoform Component
Theme
SAV
Theme
SRV
Theme
Spartina
Theme
Zostera
Theme
benthic
Theme
black brant
Theme
intertidal
Theme
mudflats
Theme
oysters
Theme
seagrass
Theme
submerged aquatic vegetation
Theme
submerged rooted vegetation
Spatial
Columbia River Estuary
Spatial
Oregon
Spatial
Washington
Spatial
Willapa Bay
Office for Coastal Management
Charleston
SC
Data Set
As Needed
Map (digital)
NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
49397
Geoform
Geoform
Published / External
Completed
Shallow benthic habitats CMECS 2012 geoform component polygons | Description Source: NOAA Office for Coastal Management
Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.
1
OBJECTID
Unknown
No
No
Active
Internal feature number. | Description Source: Esri
Sequential unique whole numbers that are automatically generated.
2
SHAPE
Unknown
No
No
Active
Feature geometry. | Description Source: Esri
Coordinates defining the features.
3
CMECS_CODE
Unknown
No
No
Active
CMECS biotic unit code. | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
Alphanumeric code for CMECS units
4
TECTPROV
VARCHAR
No
No
Active
Tectonic Setting - Continental scale geomorphological setting of the study area. | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of geoform tectonic province units; CMECS FGDC 2012: See definitions of geoform setting units; CMECS FGDC 2012 |
5
PHYSIOPROV
VARCHAR
No
No
Active
Physiographic Province as per the CMECS Geoform component. | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of geoform class units; CMECS FGDC 2012: See definitions of Geoform class units; CMECS FGDC 2012 |
6
G_ORIGIN
VARCHAR
No
No
Active
Primary process by which the geoform was formed as per the Coastal and Marine Ecological Classification Standard, FGDC 2012 | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of geoform origin units; CMECS FGDC 2012: See definitions of geoform origin units; CMECS FGDC 2012 |
7
GEOFORM
VARCHAR
No
No
Active
Geoform - Individual geomorphological and physical features which provide a context for CMECS biotic an substrate information at a variety of spatial scales. | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of Geoform units; CMECS FGDC 2012: See definitions of Geoform units; CMECS FGDC 2012 |
8
GEOFORM_TYPE
VARCHAR
No
No
Active
More specific variant of geoform. | Description Source: Coastal and Marine Ecological Classification Standard, FGDC 2012
See list of geoform type units; CMECS FGDC 2012: See definitions of geoform type units; CMECS FGDC 2012 |
9
Shape_Length
Unknown
No
No
Active
Length of line features in meters | Description Source: Esri
Distance
10
Shape_Area
Unknown
No
No
Active
Polygon area in square meters | Description Source: Esri
Area
Data Steward
2015
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Distributor
2015
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Metadata Contact
2015
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Point of Contact
2015
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Ground Condition
-124.0962
-123.7535
46.7546
46.3654
Discrete
1995-06-28
Yes
Yes
284
Unclassified
Contact NOAA Office for Coastal Management's Clearinghouse Manager and request a copy of "Benthic Habitats of Willapa Bay, Washington, 1995, CD-ROM." Alternatively, fill out a OCM Product Request Form at https://coast.noaa.gov/clearinghouse/;
None
None
ftp://ftp.coast.noaa.gov/pub/benthic/Benthic_Cover_Data/WA_WillapaBay.zip
Bulk Download
FTP download of data files.
https://coast.noaa.gov/data/Images/Collections/BenthicCover_thumbnail.jpg
Browse Graphic
Browse Graphic
JPEG
Sample of benthic cover data
http://www.cmecscatalog.org/
CMECS Catalog
Online Resource
Searchable online catalog of CMECS units, descriptions, and source references
https://coast.noaa.gov/
NOAA's Office for Coastal Management (OCM) website
Online Resource
Information on the NOAA Office for Coastal Management (OCM)
https://coast.noaa.gov/digitalcoast/
NOAA's Office for Coastal Management (OCM) Digital Coast Data section
Online Resource
The website provides not only coastal data, but also the tools, training, and information needed to make these data truly useful. Content comes from many sources, all of which are vetted by NOAA.
https://iocm.noaa.gov/cmecs
CMECS Home Page
Online Resource
Information and resources on the CMECS standard and how to apply it
2017-03-30
Date that the source FGDC record was last modified.
2017-11-14
Converted from FGDC Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.
2018-02-08
Partial upload of Positional Accuracy fields only.
2018-04-11
Partial upload to move data access FTP links to Distribution Info and remove broken URLs.
A field accuracy assessment effort was conducted during the summer of 1997. Prior to making the field visit, the original presence/absence SAV map was segmented into shallow (-2m) and deep (greater than -2m) portions. The purpose of this was to draw verification samples not only from areas where SAV had been mapped, but from shallow areas that should support it. The result was a 6-class vector coverage that was rasterized and used as a pool for drawing random samples stratified by the shallow and deep-water class, shallow and deep-water SAV, unknown and the Spartina class. Sets of unknown polygons were directly measured. A total of 250 (50 samples per class) were randomly generated and stored as a database file to allow field measurement. A total of 95 sites were visited. The final results included an overall accuracy of 81.02% with a Kappa coefficient of 0.6842.
Horizontal accuracy was not addressed during the field visit of 1997. Horizontal accuracy measures are the result of internal QA/QC values during the digitization process. This involved a comparison of the native aerial photography, and the polygon coverage to an existing digital nautical chart. The chart and polygon data meets national map accuracy standards. The maximum Root Mean Square Error for the manual digitization process was 0.003 digitizer inches.
Data is complete. All interpretable SAV habitat was mapped.
Following the compilation process the arc vector coverage was cleaned and polygon topology was built using the arc CLEAN and BUILD commands. A further editing process was undertaken to remove sliver polygons generated during the bathymetric segmentation process.
Conventional color metric aerial photographic images of Willapa Bay, Washington acquired by the Washington Department of Transportation, June 1996 Edition: 1.0
Columbia River Estuary Taskforce
1996-06-01
Discrete
1995-06-28
12000
The 295 images formed the basis for the mapping, and most of the habitat presence, location, and characteristics were derived by manually interpreting this imagery. | Source Geospatial Form: map | Type of Source Media: film transparency
GEODAS NOAA Point Bathymetric Records CD-ROM
NOAA National Oceanographic Data Center
Range
1877
1954
Supported the generation of a -2 meter bathymetric contour. | Source Geospatial Form: text | Type of Source Media: CD-ROM containing .txt files
State of Washington Orthophoto maps
Washington Department of Natural Resources
1991-01-01
Discrete
1991
12000
The delineated polygons were transferred from the overlays to State of Washington Orthophotos (1:12,000). The interpretations were directly transferred and when necessary due to scale differences, a zoom transfer cope was utilized. | Source Geospatial Form: map | Type of Source Media: mylar
Underwater videography
Marine Resources Consultants, Inc.University of Washington
1996-01-01
Discrete
1996
29 underwater videography transects were used 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). | Source Geospatial Form: video | Type of Source Media: video tape
1
Aerial Photography and Underwater Videography: On June 28, 1995, 295 conventional color metric aerial photographs at a scale of 1:12,000 were acquired through the State of Washington Department of Transportation (WDOT) using a Jena LMK-2015 camera with a 153 mm Jena Lamegon Lens (AV minus blue Jena 405) and Aerocolor 2445 film. The photographs had 60% overlap and 20% sidelap. The equipment and methodology used to collect the 295 images met stringent parameters detailed in the C-CAP Protocol (NMFS Technical Report 123). Deviations to the C-CAP protocols were the use of color aerial videography, obtained in 1996, as an ancillary data source. Data from 29 transects of underwater videography were used to verify the deep-water edge of selected seagrass beds in the southern portion of the bay. Benthic Signature development and Photointerpretation: Field surveys were conducted in August of 1995, after initial review of the images to develop spectral signatures. Observations of SRV on photographs was accomplished using stereopairs and a Leitz stereoscope with a 2X magnifying attachment. Areas containing eelgrass were delineated with reference to spatial distribution, and data from pre-truthing activities were used as constant reference to verify spectral signatures. Mylar overlays, placed on every other photograph, were used for tracing polygons defining SRV habitat from the aerial photography. The minimum mapping unit was 30 m2 (in order to avoid mapping Spartina rather than eelgrass). Digital Compilation: The delineated polygons were transferred from the overlays to State of Washington Orthophotos (1:24,000). The interpretations were directly transferred and when necessary due to scale differences, a zoom transfer cope was utilized. The final, corrected interpretations were digitized using a digitizing tablet. The bathymetric points were made into a grid using ArcView Spatial Analyst Extension. The bathymetric grid was used to generate a contour line of -2 meters. The contour was unioned with the CREST SAV coverage and recoded for shallow and deep grass classes, shallow and deep open water, unknown bottom, land and Spartina. The coverage was rasterized and 50 random points per class (excluding land) were randomly chosen from the stratified data set using ERDAS Imagine software for a total of 300 points. Field verification of the data by personnel from CREST and C-CAP was conducted in July 1997. The team utilized both underwater videography for deeper water points, and hand-held Hi-8 above water video for shallow, exposed tidal flats. The fieldwork revealed that the deep-water points consisted of dense Zostera marina, while the shallow exposed points were scattered patches of grass, primarily Zostera japonica. Based on the field data, the deep and shallow grasses were recoded dense and patchy, respectively. The final coverage was created in ArcView.
1997-01-01T00:00:00
2
The data were converted from a single ESRI polygon shapefile classified according to the System for Classifying Habitats in Estuarine and Marine Environments (SCHEME) to the Coastal and Marine Ecological Classification Standard (CMECS) 2012 format (which can be found at https://coast.noaa.gov/digitalcoast/tools/cmecs-crosswalk) which produces separate geoform, geoform, and geoform feature layers from the original input benthic habitat dataset. This geoform feature layer contains CMECS geoform component attributes where an "Equal" or "Nearly Equal" SCHEME value was present in the original data. Polygons for which no geoform information was present have been removed. No other changes to the original polygon boundaries or any other alterations of the original SCHEME data were made during this process.
2015-01-01T00:00:00
49397
Entity
Geoform
gov.noaa.nmfs.inport:47994
Anne Ball
2017-11-14T12:58:05
SysAdmin InPortAdmin
2023-05-30T18:09:29
2018-04-11
Office for Coastal Management
OCM
1002
Public
No
2018-04-11
1 Year
2019-04-11