gov.noaa.nmfs.inport:47854
eng
UTF8
dataset
Office for Coastal Management
resourceProvider
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
2024-02-29T00:00:00
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
ISO 19115-2:2009(E)
complex
2165
Humboldt Bay, California Benthic Habitats 2009 Geoform
ca_hb09-geoform_Metadata
2015
publication
NOAA/NMFS/EDM
47854
https://www.fisheries.noaa.gov/inport/item/47854
WWW:LINK-1.0-http--link
Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
https://iocm.noaa.gov/cmecs
WWW:LINK-1.0-http--link
CMECS Home Page
Information and resources on the CMECS standard and how to apply it
download
https://coast.noaa.gov/
WWW:LINK-1.0-http--link
NOAA's Office for Coastal Management (OCM) website
Information on the NOAA Office for Coastal Management (OCM)
download
http://www.cmecscatalog.org/
WWW:LINK-1.0-http--link
CMECS Catalog
Searchable online catalog of CMECS units, descriptions, and source references
download
https://coast.noaa.gov/digitalcoast/
WWW:LINK-1.0-http--link
NOAA's Office for Coastal Management (OCM) Digital Coast Data section
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.
download
mapDigital
Humboldt Bay is the largest estuary in California north of San Francisco Bay and represents a significant resource for the
north coast region. Beginning in 2007 the Office for Coastal Management began collaborating with the California SeaGrant program and
other local partners to support an ecosystem-based management (EBM) project for Humboldt Bay. One element of this project was to
develop subtidal habitat goals for the long-term management of the bay and provide a framework for conservation and management across
the land-sea interface. The imagery collection and benthic habitat delineation for Humboldt Bay were essential to the development of
subtidal goals and implementation of EBM for the region. Together, these efforts will provide important and replicable data and an
information framework for ecosystem-based coastal and marine conservation planning and implementation. 12 Bit 4 Band imagery was
collected in June,2009 within 1 hour of either side of a minus one (-1) foot tide with low turbidity,low wind,low sun angle and no cloud cover. The horizontal spatial accuracy of the imagery is within +/- 3 meters CE95 of position on the ground and was captured at a spatial resolution (pixel size) of 0.54m x 0.54m. The imagery was tiled and named according to the existing USGS digital ortho quarter quad boundaries (ex. Arcata_South_NE.tif). A small buffer (~100 m) was produced with each tile to prevent gaps in coverage. Habitat features were interpreted and digitized on screen in an ARCGIS Geodatabase 9.3 resulting in accurate and efficient 3D extraction of the data. Habitats were delineated with a high level of detail with the minimum mapping unit (MMU) being 0.01 hectares(approx.10m x 10m).
Original contact information:
Contact Org: NOAA Office for Coastal Management
Phone: 843-740-1202
Email: coastal.info@noaa.gov
The data was developed to support ecosystem based management in the Humboldt Bay region. The focus of the mapping was on shallow water benthic habitats with particular concern for eelgrass meadows.
completed
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
custodian
asNeeded
https://coast.noaa.gov/data/Images/Collections/BenthicCover_thumbnail.jpg
Sample of benthic cover data
JPEG
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY
theme
Global Change Master Directory (GCMD) Science Keywords
17.0
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA
place
Global Change Master Directory (GCMD) Location Keywords
17.0
Benthic
CMECS
Coastal and Marine Ecological Classification Standard
Environmental Monitoring
Geoform Component
Habitat
NOAA
UC Sea Grant
theme
Arcata Bay
California
Eel River Delta
Entrance Bay
Humboldt Bay
South Bay
U.S.
place
DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2017-04-24
publication
8.5
Benthic
project
InPort
otherRestrictions
Cite As: Office for Coastal Management, [Date of Access]: Humboldt Bay, California Benthic Habitats 2009 Geoform [Data Date Range], https://www.fisheries.noaa.gov/inport/item/47854.
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.
otherRestrictions
Access Constraints: Data is available upon request
otherRestrictions
Use Constraints: None
otherRestrictions
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.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
47854
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/47854.pdf
WWW:LINK-1.0-http--link
NOAA Data Management Plan (DMP)
NOAA Data Management Plan for this record on InPort.
information
crossReference
vector
eng; US
environment
-124.391793
-124.003949
40.539057
40.964791
| Currentness: Ground Condition
2009-06-27
The study area covers Arcata (North) Bay, Entrance Bay, South Bay and the Eel River Delta, Humboldt County, California.
false
eng
false
Geoform
2017-11-16
publication
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
distributor
ftp://ftp.coast.noaa.gov/pub/benthic/Benthic_Cover_Data/CA_HumboldtBay.zip
WWW:LINK-1.0-http--link
Bulk Download
FTP download of data files.
download
dataset
Accuracy
Polygon labels and boundaries were visually inspected for delineation precision and attribute accuracy. Thematic accuracy assessment methods: The thematic accuracy of the benthic habitat data set was assessed in two phases. The first phase took place in between September 14 and 18 2009, in the same season as image acquisition but prior to any mapping having been completed. A total of 128 points were visited on this trip. The points were selected manually to ensure that both representative habitats visible in the imagery as well as areas of potential confusion. The second phase also involved field visits which took place in May 10 through 13 2010. A total of 24 points were manually selected and visited after reviewing the draft habitat map. Navigation to each field point is accomplished using the source imagery as a backdrop, a real time Wide Area Augmentation System (WAAS) enabled GPS (Garmin 76 unit), and a ruggedized field lap top PC . The PC displays the image of the area with each "target" point as well as a real time symbol display of the boat location via the GPS. This system allows navigation precisely to the "target" point. In shallow or extremely clear water or during low tides when the bottom was exposed direct observations were made from the boat. In deeper areas or areas of unclear water a towed underwater video camera with live feed to a monitor on the boat was deployed. The camera was towed long enough (~2-4 minutes) at each station to provide a complete assessment of the dominate habitat type. The "field" classes were recorded to at least the two digit SCHEME classification level and where possible to the three digit level. The field points were sorted by habitat subclass and additional points were selected through a stratified random sampling process to generate a total of 50 points per class which would support a statistically valid accuracy assessment. These points were visually interpreted by viewing the source imagery. A total of 132 points were analyzed in this way. All the points were assembled into an error matrix where the "field" classification is compared to the "map" classification of each point by category. The resulting accuracy for the Humboldt Bay benthic habitat data at the 2 digit SCHEME classification code level is 84% with a kappa coefficient of 0.793.
Horizontal Positional Accuracy
The positional accuracy of this data meets USGS NMAS for 1:12000 scale maps. Horizontal accuracy of the data corresponds to the positional accuracy of the aerotriangulated photography that was controlled by GPS survey control points.
Completeness Measure
Cloud Cover: 0
Completeness Report
Minimum mapping unit for habitat polygons was 10 square meters. The study area boundaries for the project were defined by NOAA. Benthic habitat features were captured and classified according to the rules, conventions, and descriptions in the Statement of Work.
Conceptual Consistency
Polygon topology present. All polygons were tested for slivers. Every polygon has a label, there are no multiple labels within polygons, there are no contiguous polygons.
The imagery was flown on 6/27/2010 between 9:35 and 10:24 A.M. by HJW geospatial Pacific Aerial Surveys
The horizontal spatial accuracy of the imagery is within +/- 3 meters CE95 of position on the ground.
The radiometric resolution of the 4 band image composites is 12-bit.
The imagery was processed to remove atmospheric effects such as haze and to highlight the spectral response of submerged areas.
The imagery has a minimal exposure variation between adjacent flight lines.
The 4 band imagery is tiled and named according to the existing USGS digital ortho quarter quad boundaries (ex. Arcata_South_NE.tif). A small buffer (~100 m) was produced with each tile to prevent gaps in coverage. The tiles are in GeoTIFF format. An index shape file indicating the image file name, location in the final file structure and the USGS tile name is included to enable users to easily identify the location of an individual tile.
The 4 band image sets was delivered within a "Unmanaged Raster Catalog" created within the ESRI Geodatabase structure to serve as an easy method for users to access the images
The imagery was captured at a spatial resolution (pixel size) of 0.54m x 0.54m and was delivered in a Universal Transverse Mercator - Zone 10 projection using the NAD1983 datum.
2010-06-09T00:00:00
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
Source Contribution: photographic signature for interpretation of benthic habitat data. | Type of Source Media: Digital orthophotos
12000
2009 Benthic Habitat DMC Imagery
2009-01-01
publication
Photo Science, Inc
2009-06-27