Humboldt Bay, California Benthic Habitats 2009 Geoform

Metadata Updated: February 7, 2018

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).

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Metadata Date March 30, 2017
Metadata Created Date February 7, 2018
Metadata Updated Date February 7, 2018
Reference Date(s) January 1, 2015 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

Sample of benthic cover data

Additional Metadata

Resource Type Dataset
Metadata Date March 30, 2017
Metadata Created Date February 7, 2018
Metadata Updated Date February 7, 2018
Reference Date(s) January 1, 2015 (publication)
Responsible Party NOAA Office for Coastal Management (Point of Contact)
Contact Email
Access Constraints Use Constraints: None, Access Constraints: Data is available upon request
Bbox East Long -124.003949
Bbox North Lat 40.964791
Bbox South Lat 40.539057
Bbox West Long -124.391793
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Sample of benthic cover data
Graphic Preview File
Graphic Preview Type JPEG
Harvest Object Id 5740162a-0ba6-4323-bede-854adc93d61a
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence 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.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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