Identification Information:

Citation:

Citation Information:

Title: BodegaHabitat

Description:

Abstract: Geophysical techniques that help identify and define large-scale marine benthic features are valuable in appraising essential habitats of marine benthic fish assemblages. Interpretations and verification of sidescan sonar, swath bathymetry, and backscatter imagery are useful tools for characterizing these habitats. Bathymetric and backscatter (sidescan) data were collected for the California Department of Fish and Game by the Seafloor Mapping Lab at California State University, Monterey Bay using a Reson 8101 multibeam echosounder.

Purpose: To collect and process bathymetric and backscatter (sidescan sonar) data for marine habitat classification.

Supplemental Information: Data Acquisition: Bathymetric and backscatter (sidescan) data were collected aboard the R/V MacGinnite using a Reson 8101 multibeam echosounder. Differential GPS (DGPS) position data were generated by a Trimble 4700 GPS with differential corrections provided by a Trimble ProBeacon receiver. A TSS HDMS heading and motion sensor provided heave, pitch, heading, and roll data. Coastal Oceanographics Hypack software was used for survey design and execution. All raw data were logged using a Triton-Elics International (TEI) Isis data acquisition system. Water column sound velocity profiles collected using an AML SV+ sound velocity profiler.

Time Period of Content:

Time Period Information:

Single Date/Time:

Calendar Date: 3/31/2001

Currentness Reference: ground condition

Status:

Progress: Complete

Maintenance and Update Frequency: None planned

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: 491332.687477542

East Bounding Coordinate: 180

North Bounding Coordinate: 90

South Bounding Coordinate: 4234853.49997754

Keywords:

Theme:

Theme Keyword Thesaurus: Multibeam Projects

Theme Keyword: Backscatter

Theme Keyword: Multibeam

Theme Keyword: Bathymetry

Theme Keyword: Habitat

Theme Keyword: Seafloor

Theme Keyword: Sidescan sonar

Theme Keyword: GeoTiff

Theme Keyword: Contour

Theme Keyword: Slope

Theme Keyword: Hydrographic

Theme Keyword: Sound velocity

Theme Keyword: GPS

Access Constraints: To be determined by the Seafloor Mapping Lab at California State University Monterey Bay and contractor.

Use Constraints: To be determined by the Seafloor Mapping Lab at California State University Monterey Bay and contractor.

Point of Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: Seafloor Mapping Lab, California State University Monterey Bay

Contact Address:

Address Type: mailing address

Address: California State University Monterey Bay, Institute for Earth Systems Science and Policy,100 Campus Center, Bldg 46A

City: Seaside

State or Province: California

Postal Code: 93955

Country: USA

Contact Voice Telephone: (831) 582-3529

Contact Facsimile Telephone: (831) 582-3073

Contact Electronic Mail Address: rikk_kvitek@monterey.edu

Data Set Credit: Digital data processed by Seafloor Mapping Lab at California State University Monterey Bay

Data Quality Information:

Lineage:

Process Step:

Process Description: Bathymetric data were post-processed using CARIS HIPS hydrographic data cleaning system software. Soundings were corrected for vessel motion using TSS HDMS data, variations in water column sound velocity using AML SV+ data, and adjusted to MLLW using predicted tide charts for the local region. Cleaning to remove erroneous soundings was completed in CARIS HIPS. Sun-illuminated grayscale 1m bathymetric geotiffs and backscatter (sidescan) mosaics were were imported into ArcView v3.2 and displayed along with a California coastline shapefile. Maps were plotted at 1:4000, 1:5000, 1:5500 and 1:5000 scale for Monterey, Bodega Bay, Farallon Islands and Santa Barbara Island, respectively. Mylar sheets were over-layed on each map and habitat interpretations were outlined and codified on the mylar. On each mylar, four tic marks and corresponding coordinates were used for reference. In addition to the multibeam imagery maps, corresponding side scan sonar imagery maps were plotted to help interpret coarse sediment extents. Each mylar was scanned using a Contex FSC 5010 (Contex A/S, Denmark). Mylars were scanned at 400dpi, in Black/White mode. Mylars were scanned and saved as tiff images and imported into TNTmips as rasters which were georeferenced to UTM zone 10 or 11 (as appropriate) WGS84. The rasters were cleaned, converted to vectors, and cleaned again to remove any nodes that may have been missed in the raster cleaning process. The vectors were then smoothed and merged together within each site. Once again the merged vectors were cleaned in the areas where overlap occurred and exported from TNT Mips as a shapefile. Within ArcView all of the polygons were attributed and quality control checked.

Process Date: 3/31/01

Process Contact:

Contact Information:

Contact Person Primary:

Contact Person: Eric Sandoval

Contact Organization: Seafloor Mapping Lab, California State University Monterey Bay

Contact Position: Habitat Interpretation Manager and GIS Analyst

Contact Address:

Address Type: mailing and physical address

Address: California State University Monterey Bay, Institute for Earth Systems Science and Policy,100 Campus Center, Bldg 46A

City: Seaside

State or Province: California

Postal Code: 93955

Country: USA

Contact Voice Telephone: (831) 582-4441

Contact Facsimile Telephone: (831) 582-3073

Contact Electronic Mail Address: eric_sandoval

Cloud Cover: 0

Spatial Data Organization Information:

Indirect Spatial Reference: Bodega Bay

Direct Spatial Reference Method: Vector

Point and Vector Object Information:

SDTS Terms Description:

SDTS Point and Vector Object Type: G-polygon

Point and Vector Object Count: 181

Spatial Reference Information:

Horizontal Coordinate System Definition:

Planar:

Grid Coordinate System:

Grid Coordinate System Name: Universal Transverse Mercator 1983

Universal Transverse Mercator:

UTM Zone Number: 10

Transverse Mercator:

Scale Factor at Central Meridian: 0.9996

Longitude of Central Meridian: -123

Latitude of Projection Origin: 0

False Easting: 500000

False Northing: 0

Planar Coordinate Information:

Planar Coordinate Encoding Method: Coordinate Pair

Coordinate Representation:

Abscissa Resolution: 0

Ordinate Resolution: 0

Planar Distance Units: m

Geodetic Model:

Horizontal Datum Name: WGS84

Ellipsoid Name: WGS84

Semi-major Axis: 6378137

Denominator of Flattening Ratio: 298.257223563

Entity and Attribute Information:

Detailed Description:

Entity Type:

Entity Type Label: Captured

Attribute:

Attribute Label: BOTTOM

Attribute Definition: Short description of the bottom induration attributes.

Attribute:

Attribute Label: BOTTOM_ID

Attribute Definition: Second letter of habitat characterization code to designate the bottom induration. Attribute records for the field consist of, s, h, and m.

Attribute:

Attribute Label: GEO_CONFID

Attribute Definition: The level of confidence of the geoglogic unit. This will either be defined, questionabley define, or unclassfied.

Attribute:

Attribute Label: GEO_UNIT

Attribute Definition: Geologic unit

Attribute:

Attribute Label: HAB_CONFID

Attribute Definition: The level of confidence of the habitat type. This will either be defined, questionabley define, or unclassfied.

Attribute:

Attribute Label: HAB_TYPE

Attribute Definition: Habitat type. This consist of the sequence of habitat “id” s.

Attribute:

Attribute Label: MDFR

Attribute Definition: Short description of the modifers.

Attribute:

Attribute Label: MDFR_ID

Attribute Definition: Third or fourth letter of the habitat characterization code to describe the texture bedform, biology, or rocky type and consists of _u, _c, _f, _m, _d, _v/g, _b, _h, _r, _s, and _a. Undersocore preceding the letter denotes subscript.

Attribute:

Attribute Label: MEGA

Attribute Definition: Short description of the megahabitat attributes.

Attribute:

Attribute Label: MEGA_ID

Attribute Definition: First letter of the habitat characterization code to designate the megahabitat type.

Attibute records for this field consist of S, F, A, P, B, R. These will be in capital

case letters.

Attribute:

Attribute Label: MSO_MCR

Attribute Definition: Short description of the mes- or macrohabitat types.

Attribute:

Attribute Label: MSO_MCR_ID

Attribute Definition: Third or absent (unclassified) letter of the habitat characteriztion code to designate the meso- or macrohabitat type. Attibute records for this field consist of c, m, b, g, l, f, p/b, r, o, w, i, t, s, and e.

Overview Description:

Entity and Attribute Overview: Polygons depicting habitat type were classified based on Greene et al. (1999) habitat interpretation scheme.

Entity and Attribute Detail Citation: Greene et al. (1999)

Metadata Reference Information:

Metadata Date: 3/31/2001

Metadata Review Date:

Metadata Future Review Date:

Metadata Contact:

Contact Information:

Contact Person Primary:

Contact Person: Carrie Bretz

Contact Organization: Seafloor Mapping Lab, California State University Monterey Bay

Contact Position: GIS Analyst and Metadata Manager, Geology Map Series Project Manager

Contact Address:

Address Type: mailing and physical address

Address: California State University Monterey Bay, Institute for Earth Systems Science and Policy,100 Campus Center, Bldg 46A

City: Seaside

State or Province: CA

Postal Code: 93955

Country: USA

Contact Voice Telephone: 831-582-4197

Contact Facsimile Telephone: 831-582-3073

Contact Electronic Mail Address: carrie_bretz@monterey.edu

Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata Standard Version: 2.0

Metadata Access Constraints: None

Metadata Use Constraints: None

Metadata Security Information:

Metadata Security Classification: Unclassified