Carrie K. Bretz
Rikk G. Kvitek
Peter Dartnell
Eleyne L. Phillips
2014
Bathymetry Hillshade--Offshore Pacifica, California
1.0
GeoTiff
Brian D. Edwards
Eleyne L. Phillips
Peter Dartnell
H. Gary Greene
Carrie K. Bretz
Rikk G. Kvitek
Stephen R. Hartwell
Samuel Y. Johnson
Guy R. Cochrane
Brian E. Dieter
Ray W. Sliter
Stephanie L. Ross
Nadine E. Golden
Janet T. Watt
John L. Chin
Mercedes D. Erdey
Lisa M. Krigsman
Michael W. Mansion
Charles A. Endris
2014
California State Waters Map Series--Offshore of Pacifica map area, California
map
Open-File Report
OFR 2014-1260
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2014/1260/
Nadine E. Golden
2013
California State Waters Map Series Data Catalog
database
Data Series
DS 781
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/ds/781/
This part of DS 781 presents data for the bathymetry and shaded-relief maps of Offshore Pacifica, California. The raster data file is included in "BathymetryHS_OffshorePacifica.zip," which is accessible from https://pubs.usgs.gov/ds/781/OffshorePacifica/data_catalog_OffshorePacifica.html.
The bathymetry and shaded-relief maps of Offshore Pacifica, California, were generated from bathymetry data collected by Fugro Pelagos, and by California State University, Monterey Bay (CSUMB). Mapping was completed between 2005 and 2007, using a combination of 400-kHz Reson 7125 and 244-kHz Reson 8101 multibeam echosounders. These mapping missions combined to collect bathymetry from about the 10-m isobath to beyond the 3-nautical-mile limit of California’s State Waters.
These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software to identify bathymetric features. These data are not intended to be used for navigation.
2005
2007
ground condition
As needed
-122.65
-122.40
37.70
37.54
Global Change Master Directory (GCMD)
Oceans > Bathymetry/SeafloorTopography > Bathymetry
Oceans > Bathymetry/SeafloorTopography > Seafloor Topography
General
Seafloor Character
Fisheries
Ecosystem
Multibeam
Geology
Bathymetry
Backscatter
Intensity
Ocean Floor Topography
U.S. Geological Survey
USGS
Pacific Coastal and Marine Science Center
CMGP
ISO 19115 Topic Category
geoscientificInformation
environment
oceans
imageryBaseMapsEarthCover
Geographic Names Information System (GNIS)
Pacific Ocean
State of California
Pacifica
San Mateo County
Rockaway Beach
None
USGS-authored or produced data and information are in the public domain. Acknowledge the U.S. Geological Survey and California State University, Monterey Bay, Seafloor Mapping Lab in products derived from these data. Share data products developed using these data with the U.S. Geological Survey.
This information is not intended for navigational purposes. Read and fully comprehend the metadata prior to data use. Uses of these data should not violate the spatial resolution of the data. Where these data are used in combination with other data of different resolution, the resolution of the combined output will be limited by the lowest resolution of all the data.
This database has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.
Although this Federal Geographic Data Committee-compliant metadata file is intended to document these data in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology.
Peter Dartnell
U.S. Geological Survey,
Pacific Coastal and Marine Science Center
Physical Scientist
mailing and physical address
400 Natural Bridges Dr.
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
(831) 427-4709
pdartnell@usgs.gov
<https://pubs.usgs.gov/ds/781/OffshorePacifica/images/BathymetryHS_OffshorePacifica.jpg>
Shaded relief map offshore Pacifica.
JPEG
Not applicable for raster data.
Unspecified
Complete
Estimated to be no less than 2 m, owing to water depth and total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations.
Estimated to be no less than 20 cm, owing to water depth and total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations.
During the mapping missions, an Applanix position and motion compensation system (POS/MV) was used to accurately position the vessel during data collection, and it also accounted for vessel motion such as heave, pitch, and roll (position accuracy, ±2 m; pitch, roll, and heading accuracy, ±0.02ˇ; heave accuracy, ±5%, or 5 cm). KGPS altitude data (Fugro Pelagos, StarFix HP & XP units; CSUMB, NavCom 2050) were used to account for tide cycle fluctuations and sound velocity profiles were collected with an Applied Microsystems SVPlus sound velocimeter. Soundings were corrected for vessel motion using the Applanix POS/MV data, for variations in water-column sound velocity using the AM SVPlus data, and for variations in water height (tides) using vertical-position data from the KGPS receivers. Final XYZ soundings and bathymetric-surface models were referenced to the World Geodetic System of 1984 (WGS 1984) relative to the North American Vertical Datum of 1988 (NAVD 1988).
2007
Carrie Bretz
Seafloor Mapping Lab, California State University Monterey Bay
Projects Manager, GIS & Metadata Supervisor
mailing and physical address
100 Campus Center, Bldg 13
Seaside
CA
93955
USA
831.582.4197
carrie_bretz@csumb.edu
California Seafloor Mapping Project 2-m resolution bathymetry data (CSMP survey blocks CC-01, CC-02, CC-03, CC-05, and Entrance to San Francisco Bay) within this map were downloaded from California State University, Monterey Bay, Seafloor Mapping Lab (http://seafloor.csumb.edu/SFMLwebDATA.htm). Merge all bathymetry data into 2-m-resolution bathymetry grid and clip to the Offshore Pacifica, California, map boundary. To create the shaded-relief imagery, an illumination having an azimuth of 300 degrees and 45 degrees above the horizon was applied to the bathymetry grid. The bathymetry grid only was projected horizontally from WGS 1984 relative to NAVD 1988 to the North American Datum of 1983 (NAD 1983) relative to NAVD 1988 using ESRI ArcGIS raster projection tool “WGS_84_(ITRF00)_To_NAD_1983”.
2012
Pete Dartnell
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Physical Scientist
mailing and physical address
400 Natural Bridges Dr.
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
pdartnell@usgs.gov
Raster
Grid Cell
Universal Transverse Mercator
10
0.9996
-123.00000
0.00000
500000.0
0.00
coordinate pair
2.0
2.0
Meters
WGS84
GRS80
6378137.00 meters
298.257223563
The complete Offshore of Pacifica bathymetry data were originally archived as an ESRI grid with the following attributes. NOTE: the horizontal datum of the bathymtry data (NAD83) differs from the horizontal datum of other layers in this DS (WGS84). Some bathymetry grids within this map were projected horizontally from WGS84 to NAD83 using ESRI tools to be more consistent with the vertical reference of the North American Vertical Datum of 1988 (NAVD88).
>Cell size = 2.0
>Number of rows = 8960
>Number of columns = 8963
>
>Data type = floating point
>
>Boundary
>Xmin = 531130
>Xmax = 549056
>Ymin = 4154950
>Ymax = 4172870
>
>Statistics
>Minimum value = -45.19
>Maximum value = -1.54
>Mean = -24.34
>Standard deviation = 7.42
>
>Coordinate system description
>Projection UTM
>Zone 10
>Datum WGS84
>Units meter
none
U.S. Geological Survey
mailing and physical address
345 Middlefield Rd
Menlo Park
CA
94025-3561
USA
(650) 329-4309
These databases, identified as bathymetry and shaded-relief maps of Offshore of Pacifica, California have been approved for release and publication by the U.S. Geological Survey (USGS). Although these databases have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.
Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
These data are not intended for navigational use.
20131202
20131202
Peter Dartnell
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Physical Scientist
mailing and physical address
400 Natural Bridges Dr.
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
(831) 427-4709
pdartnell@usgs.gov
Content Standard for Digital Geospatial Metadata
("CSDGM version 2")
FGDC-STD-001-1998
universal time