Short Citation:
Office for Coastal Management, 2021: Willapa Bay, Washington Benthic Habitats 1995 Biotic, https://www.fisheries.noaa.gov/inport/item/47992.

Item Identification

Title: Willapa Bay, Washington Benthic Habitats 1995 Biotic
Short Name: wa_wb95-biotic_Metadata
Status: Completed
Publication Date: 2015
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 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

Purpose:

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.

Notes:

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Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic
Global Change Master Directory (GCMD) Science Keywords Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Coastal
Global Change Master Directory (GCMD) Science Keywords Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Estuary
ISO 19115 Topic Category environment
None benthic
None Biotic Component
None black brant
None C-CAP
None CMECS
None Coastal and Marine Ecological Classification Standard
None Coastal Change Analysis Program
None Environmental Monitoring
None intertidal
None mudflats
None oysters
None SAV
None seagrass
None Spartina
None SRV
None submerged aquatic vegetation
None submerged rooted vegetation
None Zostera

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords Continent > North America > United States Of America > Washington
None Columbia River Estuary
None Oregon
None Washington
None Willapa Bay

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: Map (digital)
Distribution Liability:

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.

Support Roles

Data Steward

CC ID: 615736
Date Effective From: 2015
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 615738
Date Effective From: 2015
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 615739
Date Effective From: 2015
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 615737
Date Effective From: 2015
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 615742
W° Bound: -124.0962
E° Bound: -123.7535
N° Bound: 46.7546
S° Bound: 46.3654

Extent Group 1 / Time Frame 1

CC ID: 615741
Time Frame Type: Discrete
Start: 1995-06-28

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Vector Representation 1

CC ID: 615728
Complex Object Present?: Yes
Complex Object Count: 73

Access Information

Security Class: Unclassified
Data Access Procedure:

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/;

Data Access Constraints:

None

Data Use Constraints:

None

Distribution Information

Distribution 1

CC ID: 750945
Download URL: ftp://ftp.coast.noaa.gov/pub/benthic/Benthic_Cover_Data/WA_WillapaBay.zip
Distributor:
File Name: Bulk Download
Description:

FTP download of data files.

URLs

URL 1

CC ID: 750947
URL: https://iocm.noaa.gov/cmecs
Name: CMECS Home Page
URL Type:
Online Resource
Description:

Information and resources on the CMECS standard and how to apply it

URL 2

CC ID: 750948
URL: http://www.cmecscatalog.org/
Name: CMECS Catalog
URL Type:
Online Resource
Description:

Searchable online catalog of CMECS units, descriptions, and source references

URL 3

CC ID: 750949
URL: https://coast.noaa.gov/digitalcoast/
Name: NOAA's Office for Coastal Management (OCM) Digital Coast Data section
URL Type:
Online Resource
Description:

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.

URL 4

CC ID: 750950
URL: https://coast.noaa.gov/
Name: NOAA's Office for Coastal Management (OCM) website
URL Type:
Online Resource
Description:

Information on the NOAA Office for Coastal Management (OCM)

URL 5

CC ID: 750951
URL: https://coast.noaa.gov/data/Images/Collections/BenthicCover_thumbnail.jpg
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: JPEG
Description:

Sample of benthic cover data

Activity Log

Activity Log 1

CC ID: 615771
Activity Date/Time: 2017-03-30
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 615770
Activity Date/Time: 2017-11-14
Description:

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.

Activity Log 3

CC ID: 718010
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 750946
Activity Date/Time: 2018-04-11
Description:

Partial upload to move data access FTP links to Distribution Info and remove broken URLs.

Data Quality

Accuracy:

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 Positional Accuracy:

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.

Completeness Report:

Data is complete. All interpretable SAV habitat was mapped.

Conceptual Consistency:

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.

Lineage

Sources

Conventional color metric aerial photographic images of Willapa Bay, Washington acquired by the Washington Department of Transportation, June 1996 Edition: 1.0

CC ID: 615721
Contact Name: Columbia River Estuary Taskforce
Publish Date: 1996-06-01
Extent Type: Discrete
Extent Start Date/Time: 1995-06-28
Scale Denominator: 12000
Source Contribution:

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

CC ID: 615722
Contact Name: NOAA National Oceanographic Data Center
Extent Type: Range
Extent Start Date/Time: 1877
Extent End Date/Time: 1954
Source Contribution:

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

CC ID: 615723
Contact Name: Washington Department of Natural Resources
Publish Date: 1991-01-01
Extent Type: Discrete
Extent Start Date/Time: 1991
Scale Denominator: 12000
Source Contribution:

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

CC ID: 615724
Contact Name: Marine Resources Consultants, Inc.University of Washington
Publish Date: 1996-01-01
Extent Type: Discrete
Extent Start Date/Time: 1996
Source Contribution:

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

Process Steps

Process Step 1

CC ID: 615725
Description:

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.

Process Date/Time: 1997-01-01 00:00:00

Process Step 2

CC ID: 615726
Description:

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, biotic, and biotic feature layers from the original input benthic habitat dataset. This biotic feature layer contains CMECS biotic component attributes where an "Equal" or "Nearly Equal" SCHEME value was present in the original data. Polygons for which no biotic 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.

Process Date/Time: 2015-01-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity (ENT) Biotic

Catalog Details

Catalog Item ID: 47992
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-14 12:58+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-07-02 15:17+0000
Metadata Record Published: 2018-04-11
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-04-12