AGSL GeoDiscovery

Bathymetry Hillshade: Hueneme Canyon and Vicinity, California, 2009

Description:

This layer is a georeferenced raster image containing bathymetric and shaded-relief data for Hueneme Canyon and the surrouding vicinity in California. These data were generated from bathymetry data collected by California State University, Monterey Bay, Seafloor Mapping Lab (CSUMB), by the U.S. Geological Survey (USGS), and by Fugro Pelagos for the U.S. Army Corps of Engineers (USACE) Joint Lidar Bathymetry Technical Center of Expertise. Most of the offshore area was mapped by CSUMB in the summers of 2006 and 2007, using a 244-kHz Reson 8101 multibeam echosounder. The far northern part of the offshore area was mapped by the USGS in 2006, using a 117-kHz SEA (AP) Ltd. SWATHplus-M phase-differencing sidescan sonar. The nearshore bathymetry and coastal topography were mapped for USACE by Fugro Pelagos in 2009, using the SHOALS-1000T bathymetric-lidar and Leica ALS60 topographic-lidar systems. All these mapping missions combined to collect bathymetry from the 0-m isobath to beyond the 3-nautical-mile limit of California's State Waters. This layer is part of USGS Data Series 781.

In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP) to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats and geology within the 3-nautical-mile limit of California's State Waters. CSMP has divided coastal California into 110 map blocks, each to be published individually as United States Geological Survey Open-File Reports (OFRs) or Scientific Investigations Maps (SIMs) at a scale of 1:24,000. Maps display seafloor morphology and character, identify potential marine benthic habitats and illustrate both the seafloor geology and shallow (to about 100 m) subsurface geology. Data layers for bathymetry, bathymetric contours, acoustic backscatter, seafloor character, potential benthic habitat and offshore geology were created for each map block, as well as regional-scale data layers for sediment thickness, depth to transition, transgressive contours, isopachs, predicted distributions of benthic macro-invertebrates and visual observations of benthic habitat from video cruises over the entire state. These data are intended for science researchers, students, policy makers, and the general public. This information is not intended for navigational purposes.The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.

This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

Resource Link:

https://purl.stanford.edu/dt304qz0085

Identifier:

https://purl.stanford.edu/dt304qz0085

Language:

eng

Creator:

Ritchie, Andrew C., Johnson, Samuel Y., Dartnell, Peter, Phillips, Eleyne L., Kvitek, Rikk G., Pacific Coastal and Marine Science Center, and Golden, Nadine E.

Publisher:

Geological Survey (U.S.)

Provider:

Stanford

Resource Class:

Datasets

Resource Type:

Bathymetric maps and Raster data

Subject:

Coasts, Bathymetric maps, Multibeam mapping, Submarine topography, Ocean bottom, Seismic reflection method, Imagery and Base Maps, Oceans, Environment, and Geoscientific Information

Theme:

Land cover, Imagery, Land Cover, Oceans, and Environment

Temporal Coverage:

2006-2009

Date Issued:

2012

Spatial Coverage:

California, Ventura County (Calif.), and Pacific Ocean

Rights:

This item is in the public domain. There are no restrictions on use.

Rights Holder:

This work is in the Public Domain, meaning that it is not subject to copyright.

Access Rights:

Public

Format:

GeoTIFF

Georeferenced:

false