Kelp distribution off California

Metadata Updated: November 18, 2018

This data set delineates kelp beds (Nereocystis leutkeana and Macrocystis spp.) along the Pacific Coast of California. Multiple years of kelp mapping data for the state have been compiled into a single coastwide data set. Due to variability in oceanographic and climatic conditions, kelp bed abundance and distribution is extremely variable from year to year. Therefore kelp bed locations and extent in a particular year may not reflect current or past conditions. In addition, the methods for mapping kelp in California have changed over time. Despite these caveats, this multi-year kelp coverage can be used to identify areas that have been known to support kelp growth, and investigate general patterns of kelp distribution on a coastwide scale.California has three coastal kelp surveys. The first survey, 1989, was a coastwide survey using the same contractor and method as Washington State. Kelp canopy data from the second survey, 1999, was created from digital image processing of scanned aerial photographs. The 2002 survey was performed with a Digital Multispectral Video (DMSV) sensor and kelp beds were delineated by digital image processing techniques.

Access & Use Information

Downloads & Resources

Dates

Metadata Date February 8, 2018
Metadata Created Date February 7, 2018
Metadata Updated Date November 18, 2018
Reference Date(s) 2004 (publication)
Frequency Of Update unknown

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date February 8, 2018
Metadata Created Date February 7, 2018
Metadata Updated Date November 18, 2018
Reference Date(s) 2004 (publication)
Responsible Party National Centers for Coastal Ocean Science (Point of Contact, Custodian)
Contact Email
Access Constraints Access Constraints: None | Use Constraints: None | Distribution Liability: Unknown
Bbox East Long -116.826846
Bbox North Lat 40.475111
Bbox South Lat 32.520358
Bbox West Long -124.397359
Coupled Resource
Frequency Of Update unknown
Guid gov.noaa.nmfs.inport:39359
Harvest Object Id 4bf13a6c-fc9f-4cc4-b20a-0893c587e6cd
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence
Metadata Language eng
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1989
Temporal Extent End 2002

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