High-resolution multibeam backscatter data collected in 2004 for the northern Channel Islands region, southern California

This data release presents data for 5-m resolution acoustic-backscatter data of the northern Channel Islands region, southern California. In 2004 the U.S. Geological Survey, Pacific Coastal and Marine Science Center collected multibeam-bathymetry and acoustic-backscatter data in the northern Channel Islands region, southern California. The region was mapped aboard the R/V Ewing using a Kongsberg Simrad EM-1002 multibeam echosounder. These data were previously published on-line at http://pubs.usgs.gov/of/2005/1153/. In this data release the data have been reprocessed to a finer spatial resolution (5-m versus 15-m) using more modern processing techniques. Due to the large file sizes the entire survey area is provided as two ASCIIRaster files (one for the north portion of the study area and another for the south). A few survey line files in the northern region did not process and are missing from the ASCIIRaster file.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {010:12}
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catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
datagov_dedupe_retained 20220722114234
identifier USGS:5ee65fe582ce3bd58d82eb7e
metadata_type geospatial
modified 20211013
old-spatial {"type": "Polygon", "coordinates": [[[-119.70, 33.86], [-119.70, 34.33], [ -119.04, 34.33], [ -119.04, 33.86], [-119.70, 33.86]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 85feae218d951b1f26c038151597e5fdae260059
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-119.70, 33.86], [-119.70, 34.33], [ -119.04, 34.33], [ -119.04, 33.86], [-119.70, 33.86]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • amerigeo
  • amerigeoss
  • bathymetry
  • bathymetry-and-elevation
  • channel-islands
  • ckan
  • cmhrp
  • coastal-and-marine-hazards-and-resources-program
  • geo
  • geoscientificinformation
  • geoss
  • imagerybasemapsearthcover
  • marine-geology
  • marine-geophysics
  • multibeam-echo-sounder
  • multibeam-sonar
  • national
  • north-america
  • oceans
  • pacific-coastal-and-marine-science-center
  • pacific-ocean
  • pcmsc
  • santa-barbara-channel
  • sea-floor-acoustic-reflectivity
  • seafloor-topography
  • state-of-california
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-5ee65fe582ce3bd58d82eb7e
isopen False
license_id notspecified
license_title License not specified
maintainer PCMSC Science Data Coordinator
maintainer_email pcmsc_data@usgs.gov
metadata_created 2025-11-22T19:29:02.306113
metadata_modified 2025-11-22T19:29:02.306117
notes This data release presents data for 5-m resolution acoustic-backscatter data of the northern Channel Islands region, southern California. In 2004 the U.S. Geological Survey, Pacific Coastal and Marine Science Center collected multibeam-bathymetry and acoustic-backscatter data in the northern Channel Islands region, southern California. The region was mapped aboard the R/V Ewing using a Kongsberg Simrad EM-1002 multibeam echosounder. These data were previously published on-line at http://pubs.usgs.gov/of/2005/1153/. In this data release the data have been reprocessed to a finer spatial resolution (5-m versus 15-m) using more modern processing techniques. Due to the large file sizes the entire survey area is provided as two ASCIIRaster files (one for the north portion of the study area and another for the south). A few survey line files in the northern region did not process and are missing from the ASCIIRaster file.
num_resources 2
num_tags 30
title High-resolution multibeam backscatter data collected in 2004 for the northern Channel Islands region, southern California