Name: 2016 California Department of Fish & Wildlife Kelp Polygons
Display Field: Class_Name
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This vector dataset is a thematic map representing mosaicked multi-spectral imagery, targeting both exposed and submerged kelp beds along the California coastline and Channel Islands. The imagery used to create this classification was acquired at a spatial resolution of 0.3 meters using a Microsoft UltraCam Eagle digital camera acquiring in the red, green, blue, and near-infrared bands. The image mosaic product used for the classification is a result of the resampling of the 0.3 meter data to 2 meter resolution. The data are projected in California Teale Albers using North American Datum 1983. Surface kelp canopy and subsurface kelp classifications are separate. The data was collected and processed by Sandoval & Associates, LLC under contract by the California Department of Fish and Wildlife (CDFW). CDFW must be credited with the distribution of these data. The imagery was collected September 3-25, 2016. This dataset is complete at this time, although the user should note any omissions. DISCLAIMER The user is cautioned against making direct comparisons between the various kelp surveys for the following reasons: (1)Timing of the survey is important, particularly with respect to growing season, conditions in the ocean, storms, and harvest levels preceding the dates of imagery collection. Season variability may account for differences in surveys which may not reflect a change in the bed's extent, productivity, or harvest level. (2) Statisical significance in change of area should be evaluated. To do this, a variance parameter is needed, which is obtained by repeated measurements. (3) Survey methods may not be consistent. Some method of calibration between the methods should be performed in order to insure a change of area is not due to survey instrumentation and not misinterpreted as a biological change. (4) An area where no kelp data are present may represent an area devoid of kelp, or may represent an area where kelp was not detected due to poor photo quality, missing photo coverage, or other issues with data collection and processing. Image coverage is extensive for the state, but the user is advised to consult the supplementary information for each year to determine whether imagery were acquired for an area of interest.
Copyright Text: California Department of Fish and Wildlife - Marine Region, Sandoval & Associates, LLC
Name: 2015 California Department of Fish & Wildlife Kelp Polygons
Display Field: Class_Name
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This vector dataset is a thematic map representing mosaicked multi-spectral imagery, targeting both exposed and submerged kelp beds along the California coastline and Channel Islands. The imagery used to create this classification was acquired at a spatial resolution of 0.3 meters using a Microsoft UltraCam Eagle digital camera acquiring in the red, green, blue, and near-infrared bands. The image mosaic product used for the classification is a result of the resampling of the 0.3 meter data to 2 meter resolution. The data are projected in California Teale Albers using North American Datum 1983. Surface kelp canopy and subsurface kelp classifications are separate. The data was collected and processed by Sandoval & Associates, LLC under contract by the California Department of Fish and Wildlife (CDFW). CDFW must be credited with the distribution of these data. The imagery was collected August 26 - September 24, 2015. This dataset is complete at this time, although the user should note any omissions. DISCLAIMER The user is cautioned against making direct comparisons between the various kelp surveys for the following reasons: (1)Timing of the survey is important, particularly with respect to growing season, conditions in the ocean, storms, and harvest levels preceding the dates of imagery collection. Season variability may account for differences in surveys which may not reflect a change in the bed's extent, productivity, or harvest level. (2) Statisical significance in change of area should be evaluated. To do this, a variance parameter is needed, which is obtained by repeated measurements. (3) Survey methods may not be consistent. Some method of calibration between the methods should be performed in order to insure a change of area is not due to survey instrumentation and not misinterpreted as a biological change. (4) An area where no kelp data are present may represent an area devoid of kelp, or may represent an area where kelp was not detected due to poor photo quality, missing photo coverage, or other issues with data collection and processing. Image coverage is extensive for the state, but the user is advised to consult the supplementary information for each year to determine whether imagery were acquired for an area of interest.
Copyright Text: California Department of Fish and Wildlife - Marine Region, Sandoval & Associates, LLC
Name: 2014 California Department of Fish & Wildlife Kelp Polygons
Display Field: Class_name
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This vector dataset is a thematic map representing mosaicked multi-spectral imagery, targeting both exposed and submerged kelp beds along the California coastline and Channel Islands. The imagery used to create this classification was acquired at a spatial resolution of 0.3 meters using a Microsoft UltraCam Eagle digital camera acquiring in the red, green, blue, and near-infrared bands. The image mosaic product used for the classification is a result of the resampling of the 0.3 meter data to 2 meter resolution. The data are projected in California Teale Albers using North American Datum 1983. Surface kelp canopy and subsurface kelp classifications are separate. The data was collected and processed by Sandoval & Associates, LLC under contract by the California Department of Fish and Wildlife (CDFW). CDFW must be credited with the distribution of these data. The imagery was collected September 18 - November 2, 2014. This dataset is complete at this time, although the user should note any omissions. DISCLAIMER The user is cautioned against making direct comparisons between the various kelp surveys for the following reasons: (1)Timing of the survey is important, particularly with respect to growing season, conditions in the ocean, storms,,and harvest levels preceding the dates of imagery collection. Season variability may account for differences in surveys which may not reflect a change in the bed's extent, productivity, or harvest level. (2) Statisical significance in change of area should be evaluated. To do this, a variance parameter is needed, which is obtained by repeated measurements. (3) Survey methods may not be consistent. Some method of calibration between the methods should be performed in order to insure a change of area is not due to survey instrumentation and not misinterpreted as a biological change. (4) An area where no kelp data are present may represent an area devoid of kelp, or may represent an area where kelp was not detected due to poor photo quality, missing photo coverage, or other issues with data collection and processing. Image coverage is extensive for the state, but the user is advised to consult the supplementary information for each year to determine whether imagery were acquired for an area of interest.
Copyright Text: California Department of Fish and Wildlife - Marine Region, Sandoval & Associates, LLC
Name: 2013 California Department of Fish & Wildlife Kelp Polygons
Display Field: Type
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: Two datasets were compiled for this survey. Both vector datasets are thematic maps representing mosaicked multi-spectral imagery, targeting both exposed and submerged kelp beds. The imagery collected by Sandoval and Associates, LLC under contract by CDFW was aquired at a 0.30 meter spatial resolution using a Microsoft UltraCam Eagle digital camera. The NAVAIR Point Mugu Sea Range imagery used to create the classification was acquired at a spatial resolution of 0.38 meters using a Microsoft UltraCam-X digital camera. Both systems acquiried imagery in the red, green, blue and near-infrared bands and the image mosaic product used for the classification is a result of the resampling to 2 meter resoultion. Surface kelp canopy and subsurface kelp classifications are seperate. Not all areas were surveyed. Areas that were surveyed: Anacapa, San Nicolas, and Santa Catalina Islands; portions of Santa Rosa, San Miguel, and Santa Cruz Islands; San Clemente mainland to Malibu, Oxnard to Santa Barbara, and Bodega Bay to north of Jenner.DISCLAIMER The user is cautioned against making direct comparisons between the various kelp surveys for the following reasons: (1)Timing of the survey is important, particularly with respect to growing season, conditions in the ocean, storms, and harvest levels preceding the dates of imagery collection. Season variability may account for differences in surveys which may not reflect a change in the bed's extent, productivity, or harvest level. (2) Statisical significance in change of area should be evaluated. To do this, a variance parameter is needed, which is obtained by repeated measurements. (3) Survey methods may not be consistent. Some method of calibration between the methods should be performed in order to insure a change of area is not due to survey instrumentation and not misinterpreted as a biological change. (4) An area where no kelp data are present may represent an area devoid of kelp, or may represent an area where kelp was not detected due to poor photo quality, missing photo coverage, or other issues with data collection and processing. Image coverage is extensive for the state, but the user is advised to consult the supplementary information for each year to determine whether imagery were acquired for an area of interest.
Copyright Text: California Department of Fish and Wildlife - Marine Region, Naval Air Systems Command.
Name: 2012 California Department of Fish & Wildlife Kelp Polygons
Display Field: Class_Name
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This vector dataset is a thematic map representing mosaicked multi-spectral imagery, targeting both exposed and submerged giant kelp beds along the Naval Air Systems Command (NAVAIR) Point Mugu Sea Range. The imagery used to create this classification was acquired at a spatial resolution of 0.3 meters using a Microsoft UltraCam-X digital camera acquiring in the red, green, blue and near-infrared bands. The image mosaic product used for the classification is a result of the resampling of the 0.3 meter data to 2 meter GSD. Surface kelp canopy and subsurface kelp classifications are seperate. DISCLAIMER The user is cautioned against making direct comparisons between the various kelp surveys for the following reasons: (1)Timing of the survey is important, particularly with respect to growing season, conditions in the ocean, storms, and harvest levels preceding the dates of imagery collection. Season variability may account for differences in surveys which may not reflect a change in the bed's extent, productivity, or harvest level. (2) Statisical significance in change of area should be evaluated. To do this, a variance parameter is needed, which is obtained by repeated measurements. (3) Survey methods may not be consistent. Some method of calibration between the methods should be performed in order to insure a change of area is not due to survey instrumentation and not misinterpreted as a biological change. (4) An area where no kelp data are present may represent an area devoid of kelp, or may represent an area where kelp was not detected due to poor photo quality, missing photo coverage, or other issues with data collection and processing. Image coverage is extensive for the state, but the user is advised to consult the supplementary information for each year to determine whether imagery were acquired for an area of interest.NOTE: File reindexed to match CDFW kelp administrative kelp bed boundaries modified by changes to California Code of Regulations, Title 14, Section 165, effective April 1, 2014
Copyright Text: Naval Air Systems Command, Ocean Imaging, California Department of Fish and Wildlife - Marine Region
Name: 2011 California Department of Fish & Wildlife Kelp Polygons
Display Field: Class_Name
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This vector dataset represents mosaicked multi-spectral imagery, targeting giant kelp beds along the Naval Air Systems Command (NAVAIR) Point Mugu Sea Range. The area from Santa Monica Pier, LA county to Pt. Magu, Ventura county were not photographed. Some of the outer portions of kelp beds were cut off due to inadequate overlap in aerial surveys, these areas are noted in Grid Code 2. The user is cautioned to look for areas which appear truncated.DISCLAIMERThe user is cautioned against making direct comparisons between the various kelp surveys for the following reasons: 1) Timing of the survey is important, particularly with respect to growing season, conditions in the ocean, storms, and harvest levels preceding the dates of survey photography. Seasonal variability may account for differences in surveys, which may not reflect a change in the bed's extent, productivity, or harvest level. 2) Statistical significance in change of area should be evaluated. To do this, a variance parameter is needed, which is obtained by repeated measurements. 3) Survey methods may not be consistent. Some method of calibration between the methods needs to be performed in order to insure a change of area is not due to survey instrumentation and not misinterpreted as a biological change. 4) An area where no kelp data are present may represent an area devoid of kelp, or may represent an area where kelp was not detected due to poor photo quality, missing photo coverage, or other issues with data collection and processing. Photo coverage is extensive for the state, but the user is advised to consult the supplementary information for each year to determine whether photographs were acquired for an area of interest.NOTE: File reindexed to match CDFW kelp administrative kelp bed boundaries modified by changes to California Code of Regulations, Title 14, Section 165, effective April 1, 2014
Name: 2008 California Department of Fish & Wildlife Kelp Polygons
Display Field: Class_Name
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The dataset is used to assess the extent of kelp resources along the coast of California. The user should note this dataset was collected and created with a different camera system and software than the 2002-2007 surveys. This difference in camera system and processing software allows the collection of both surface and subsurface kelp with separate classification schemes. See associated layer file depicting the two seperate classifications. The shapefile was created from Digital Multi-Spectral Camera image files. This is public data. The data was collected and processed by Ocean Imaging under contract by the California Department of Fish and Game (CDFG). The California Department of Fish and Game must be credited with the distribution of these data. The dataset represents the 2008 CDFG survey. The Northern and Central California surveys were flown October 06-08, 2008. The Southern California including the Channel Islands imagery was acquired October 20-23, 2008. The photographs were taken from an altitude of 12,500 feet, utilizing the Department's Partenavia aircraft. Surveys were planned to coincide with periods of minimal change between high and low tides, to avoid strong tidal induced currents. This dataset is complete at this time, although the user should note omissions. The data are projected in California Teale Albers using North American Datum 1983.NOTE: File reindexed to match CDFW kelp administrative kelp bed boundaries modified by changes to California Code of Regulations, Title 14, Section 165, effective April 1, 2014
Copyright Text: California Department of Fish and Wildlife
Name: 2006 California Department of Fish & Wildlife Kelp Polygons
Display Field: KelpBed
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The dataset is used to assess the extent of kelp canopy resources along the coast of California. The majority of the shapefile was created from Digital Multi-Spectral Video image files. The files from area from Orange County to San Diego County were created from jpeg files. This is public data. The Department of Fish and Game must be credited with the collection, analysis and distribution of these data. The dataset represents the 2006 CDFG survey. The surveys were flown between August and October of 2006. The photographs were taken from 10,500 feet, utilizing the Departments two Partenavia aircraft. Surveys were planned to coincide with periods of minimal change between high and low tides, to avoid strong tidal induced currents. This dataset is complete at this time, although the user should note omissions. The data area projected in Teal Albers North American Datum 1983. The data from Los Angeles Harbor to LaJolla was provided by the Region Nine Kelp Consortium. These data were collected on December 5, 2006.
Name: 2005 California Department of Fish & Wildlife Kelp Polygons
Display Field: KelpBed
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: These data are used to assess the extent of kelp canopy resources along the coast of California. Most of this image file was created from Digital Multi-Spectral Video image files. Some were converted to image files from jpeg files. These are public data. The Department of Fish and Game must be credited with the collection, analysis and distribution of these data. These data represent the 2005 CDFG survey. The surveys were flown between August and November of 2005. The photographs were taken from 10,500 feet, utilizing the Departments two Partenavia aircraft. Surveys were planned to coincide with periods of minimal change between high and low tides, to avoid strong tidal induced currents. The surveys were flown during early morning or late afternoon, to avoid glare from overhead sun. These data are complete at this time, although the user should note ommissions. The data area projected in Teal Albers North American Datum 1983. The data from Los Angeles Harbor to LaJolla was provided by the Region Nine Kelp Consortium. These data were collected on March 15 and June 22, 2005.NOTE: File reindexed to match CDFW kelp administrative kelp bed boundaries modified by changes to California Code of Regulations, Title 14, Section 165, effective April 1, 2014
Copyright Text: The data set from LA Harbor to LaJolla was provided by the Region Nine Kelp Consortium and MBC Applied Environmental Sciences of Costa Mesa, CA.
Name: 2004 California Department of Fish & Wildlife Kelp Polygons
Display Field: KelpBed
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: These data are used to assess the extent of kelp canopy resources along the coast of California. This image file was created from Digital Multi-Spectral Video image files. These are public data. The Department of Fish and Game must be credited with the collection, analysis and distribution of these data. These data represent the 2004 CDFG survey. The surveys were flown between September and November of 2004. The photographs were taken from 10,500 feet, utilizing the Departments two Partenavia aircraft. Surveys were planned to coincide with periods of minimal change between high and low tides, to avoid strong tidal induced currents. The surveys were flown during early morning or late afternoon, to avoid glare from overhead sun. These data are complete at this time, although the user should note ommissions. The data area projected in Teal Albers North American Datum 1983.NOTE: File reindexed to match CDFW kelp administrative kelp bed boundaries modified by changes to California Code of Regulations, Title 14, Section 165, effective April 1, 2014
Name: 2003 California Department of Fish & Wildlife Kelp Polygons
Display Field: KelpBed
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: These data are used to assess the extent of kelp canopy resources along the coast of California. This image file was created from Digital Multi-Spectral Video image files. These are public data. The Department of Fish and Game must be credited with the collection, analysis and distribution of these data. These data represent the 2003 CDFG survey. The surveys were flown between July and September of 2003. The photographs were taken from 10,500 feet, utilizing the Departments two Partenavia aircraft. Surveys were planned to coincide with periods of minimal change between high and low tides, to avoid strong tidal induced currents. The surveys were flown during early morning or late afternoon, to avoid glare from overhead sun. These data are complete at this time, although the user should note ommissions. The data area projected in Teal Albers North American Datum 1983.NOTE: File reindexed to match CDFW kelp administrative kelp bed boundaries modified by changes to California Code of Regulations, Title 14, Section 165, effective April 1, 2014
Name: 2002 California Department of Fish & Wildlife Kelp Polygons
Display Field: KelpBed
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: These data are used to assess the extent of kelp resources along the coast of California. This image file was created from Digital Multi-Spectral Video image files. These are public data. The Deparment of Fish and Game must be credited with the collection, analysis and distribution of these data. These data represent the 2002 CDFG survey. These data are complete at this time with irregular updates planned. The data area projected in Teal Albers North American Datum 1983.NOTE: File reindexed to match CDFW kelp administrative kelp bed boundaries modified by changes to California Code of Regulations, Title 14, Section 165, effective April 1, 2014
Copyright Text: California Department of Fish and Wildlife