BathymetryA [USGS]--Offshore Aptos, California
type: Dataset
description: This part of DS 781 presents data for the bathymetry map of Offshore of Aptos map area, California. Bathymetry data are provided as two separate grids depending on mapping agency and processing method. This metadata file refers to the data included in "BathymetryA_USGS_OffshoreAptos.zip" which are accessible from https://doi.org/10.5066/F7K35RQB. These data accompany the pamphlet and map sheets of Cochrane, G.R., Johnson, S.Y., Dartnell, P., Greene, H.G., Erdey, M.D, Dieter, B.E., Golden, N.E., Hartwell, S.R., Ritchie, A.C., Kvitek, r.G., Maier, K.L., Endris, C.A., Davenport, C.W., Watt, J.T., Sliter, R.W., Finlayson, D.P., and Krigsman, L.M., (G.R. Cochrane and S.A. Cochran, eds.), 2016, California State Waters Map Series—Offshore of Aptos, California: U.S. Geological Survey Open-File Report 2016–1025, 43 p., 10 sheets, scale 1:24,000, https://doi.org/10.3133/ofr20161025. The bathymetry and shaded-relief maps of Offshore of Aptos, California, were generated from bathymetry data collected by the U.S. Geological Survey (USGS) and by California State University, Monterey Bay (CSUMB). Mapping was completed between 2006 and 2009 using a combination of a 244-kHz Reson 8101 multibeam echosounder and a 234-kHz SEA SWATHplus bathymetric sidescan-sonar system. The mapping missions collected bathymetry data from about the 10-m isobath to beyond the 3-nautical-mile limit of California's State Waters. NOTE: The horizontal datum of this bathymetry data (NAD83) differs from the horizontal datum of other layers in this data release (WGS84).
issued: 2025-11-21T01:09:58.996809
modified: 20201019
spatial: Location
contact point: Organization
  fn: PCMSC Science Data Coordinator
keyword: amerigeo
keyword: amerigeoss
keyword: aptos
keyword: bathymetry
keyword: bathymetry-and-elevation
keyword: bathymetry-measurement
keyword: ckan
keyword: cmhrp
keyword: coastal-and-marine-hazards-and-resources-program
keyword: continental-island-shelf
keyword: distributions
keyword: environment
keyword: fisheries
keyword: geo
keyword: geoscientificinformation
keyword: geoss
keyword: imagerybasemapsearthcover
keyword: marine-geophysics
keyword: marine-nearshore-subtidal
keyword: marine-offshore-subtidal
keyword: national
keyword: north-america
keyword: northern-california-ecoregion
keyword: oceans
keyword: pacific-coastal-and-marine-science-center
keyword: pacific-ocean
keyword: pcmsc
keyword: rock-substrate
keyword: santa-cruz-county
keyword: seabed
keyword: seafloor-topography
keyword: sidescan-sonar
keyword: sonar-methods
keyword: state-of-california
keyword: transform-continental-margin
keyword: u-s-geological-survey
keyword: unconsolidated-mineral-substrate
keyword: united-states
keyword: usgs
keyword: usgs-556f7799e4b0d9246a9fd05a
theme: {geospatial}

Digital Data
type: Distribution
description: Landing page for access to the data
format: XML
issued: 2022-07-28T21:41:08.659057
modified: 2025-11-21T01:09:58.977178
access URL: https://pubs.usgs.gov/ds/781/
media type: application/http

Original Metadata
type: Distribution
description: The metadata original format
format: XML
issued: 2022-07-28T21:41:08.659047
modified: 2025-11-21T01:09:58.976769
access URL: https://data.usgs.gov/datacatalog/metadata/USGS.556f7799e4b0d9246a9fd05a.xml
media type: text/xml

US Migrating
type: Agent