Guy R. Cochrane
2015
Seafloor character from air-photo data-Santa Barbara Channel
1.0
GeoTIFF
data release
DOI:10.5066/F7QF8QXF
Pacific Coastal and Marine Science Center, Santa Cruz, California
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.5066/F7QF8QXF
https://www.sciencebase.gov/catalog/file/get/55c90cd2e4b08400b1fd88a5
Guy R. Cochrane
2015
Data Release for the BOEM-USGS study of the Regional Importance of Manmade Structures as Rockfish Nurseries in the Santa Barbara Channel
document
Data Release
doi:10.5066/F7QF8QXF
Pacific Coastal and Marine Science Center, Santa Cruz, California
U.S. Geological Survey, Coastal and Marine Geology Program
http://dx.doi.org/10.5066/F7QF8QXF
Seafloor character was derived from interpretations of aerial photograph-derived kelp-distribution data available for Santa Cruz Island in the Santa Barbara Channel, California (Kushner and others 2013). The number of substrate classes was reduced because rugosity could not be derived for all areas.
These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software to identify local seafloor character.
2010
2013
ground condition
As needed
-119.72653060082978
-119.5065593510873
34.06738957079302
33.954016027264245
USGS Metadata Identifier
USGS:0443c3d0-30ea-4975-8929-02f22580313e
Global Change Master Directory (GCMD)
Biosphere > Aquatic Ecosystems > Benthic Habitat
Biosphere > Aquatic Ecosystems > Marine Habitat
ISO 19115 Topic Category
geoscientificInformation
environment
oceans
imageryBaseMapsEarthCover
USGS Thesaurus
benthic ecosystems
Marine Realms Information Bank (MRIB) keywords
aerial and satellite photography
benthos
Data Categories for Marine Planning
Physical Habitats and Geomorphology
None
U.S. Geological Survey
USGS
Pacific Coastal and Marine Science Center
PCMSC
Coastal and Marine Geology Program
CMGP
Geographic Names Information System (GNIS)
Pacific Ocean
State of California
Santa Barbara Channel
Santa Cruz Island
None
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes.
Guy Cochrane
U.S. Geological Survey,
Pacific Coastal and Marine Science Center
Geophysicist
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060-5792
USA
(831)460-7554
(831)427-4709
gcochrane@usgs.gov
https://www.sciencebase.gov/catalog/item/imap/55c90cd2e4b08400b1fd88a5
Seafloor character types from air-photo data for Santa Barbara Channel.
map service
Kushner, D.J.
Rassweiler, A.
McLaughlin, J.P.
Lafferty, K.D.
2013
A multi-decade time series of kelp forest community structure at the California channel islands
http://www.jstor.org/stable/23597229
Pixel resolution 10 m.
Classification was done on the basis of kelp distribution polygons delineated by interpreter.
Data covers less than half of the coastline of Santa Cruz Island.
Positional information reflects the WAAS-enabled GSP unit, recording at between 1 to 2 nm. DGPS (WAAS) accuracy for position is less than 3 meters. (From Garmin GPSMAP 76C/76CS Specifications, M01-10108-00, Rev0304, <https://http://www8.garmin.com/specs/GPSMAP76C_76CSspec.pdf>).
Areas of kelp were delineated using interpretive expertise. Seafloor character was assigned assuming kelp areas are hard bottom.
2013
The seafloor character polygons were converted to a 10 meter grid.
2013
Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.
20201019
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Raster
Pixel
6036
10012
1
WGS 1984 UTM 11N
0.9996
-117
0.0
500000
0.0
coordinate pair
0.0001
0.0001
Meter
D WGS 1984
WGS 1984
6378137.0
298.257223563
ap_sfc_utm11.tif.vat
The attributes include VALUE - code for the seafloor character classes, COUNT - number of pixels. The raster can be added to any ESRI ArcMap project.
ESRI
OID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
VALUE
This seafloor-character class was derived from a geologic interpretation of lidar data. A value of 1 indicates deposits of mud and sand thick enough to support infauna. A value of 2 indicates hard bottom including gravel, cobble, boulder, and bedrock.
ESRI
1
2
Integers 1 - 2 representing seafloor character classes.
COUNT
The number of pixels (2m x 2m size grid cell) represented in each seafloor class (see Attribute: VALUE).
ESRI
308980
616480
Integer pixel count.
U.S. Geological Survey - ScienceBase
Mailing and Physical
Denver Federal Center, Building 810, Mail Stop 302
Denver
CO
80225
1-888-275-8747
sciencebase@usgs.gov
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
GeoTIFF
ArcMap (version 10.1)
Raster data layer is registered TIFF image in the UTM Zone 11 coordinate system with datum WGS84.
The .zip file for the TIFF image includes the image (.tif), the world registration file (.tfw) and other associated files, FGDC-compliant metadata, and a browse graphic (.jpg).
Zip
0.032
https://www.sciencebase.gov/catalog/file/get/55c90cd2e4b08400b1fd88a5
https://doi.org/10.5066/F7QF8QXF
Data can be downloaded via the World Wide Web (WWW)
none
The downloadable data file has been compressed with the "zip" command and can be unzipped with Winzip (or other tool) on Windows systems. To utilize these data, the user must have software capable of uncompressing the WinZip file and importing and viewing an Esri ArcMap TIFF. Users should download the ArcGIS Project File, Air_photoseaflo.zip, a compressed (with the "zip" command) version of the ArcMap document (.mxd) that has all the data layers loaded in the table of contents for “SantaBarbaraChannelGeohab” and has all the data symbolized as on the data release map sheets. Download and save this ArcGIS project file, including all data layers, to the directory the user has created for this GIS.
20201019
Guy R. Cochrane
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Geophysicist
mailing and physical
2885 Mission Street
Santa Cruz
California
95060
USA
(831)460-7554
gcochrane@usgs.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998