1. Coastal and Marine Hazards and Resources
  2. Geoscience Data System
  3. Dataset 41121

Dataset description: Seafloor character--Offshore of Salt Point, California

This part of DS 781 presents the seafloor-character map Offshore of Salt Point, California (raster data file is included in "SeafloorCharacter_SaltPoint.zip," which is accessible from https://pubs.usgs.gov/ds/781/OffshoreSaltPoint/data_catalog_OffshoreSaltPoint.html). This raster-format seafloor-character map shows four substrate classes offshore of Salt Point, California. The substrate classes mapped in this area have been further divided into the following California Marine Life Protection Act depth zones and slope classes: Depth Zone 2 (intertidal to 30 m), Depth Zone 3 (30 to 100 m), Slope Class 1 (0 degrees - 5 degrees), and Slope Class 2 (5 degrees - 30 degrees). Depth Zone 1 (intertidal), Depth Zone 4 (100 to 200 m), Depth Zone 5 (greater than 200 m), and Slopes Classes 3-4 (greater than 30 degrees) are not present in the region covered by this block. The map is created using a supervised classification method described by Cochrane (2008).
Version1
Keywordssea-floor characteristics, sonar methods, underwater photography, videos, interferometric sonar, image mosaics, sea-floor acoustic reflectivity, ecosystems, geospatial datasets, maps and atlases, marine geophysics, bathymetry, bathymetry measurement
FormatGeoTIFF;
Amount0.9 MB

Contacts

Contact
Mercedes D Erdey
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Location of materials and files

Public files
Metadatahttps://cmgds.marine.usgs.gov/metadata/pcmsc/SeriesReports/DS_DDS/DS_781/SaltPoint/SeafloorCharacter_OffshoreSaltPoint_metadata.xml
Outline - Questions and answers - Text - XML

Activities and equipment

ActivityEquipment
L908NCcamera