Peter Dartnell
Eleyne L. Phillips
David P. Finlayson
2015
Bathymetry Hillshade--Offshore of Refugio Beach Area, California
1.0
GeoTiff
Data Series
DS 781
Reston, VA
U.S. Geological Survey
https://doi.org/10.3133/ds781
https://pubs.usgs.gov/ds/781/OffshoreRefugioBeach/data_catalog_OffshoreRefugioBeach.html
Nadine E. Golden
2013
California State Waters Map Series Data Catalog
database
Data Series
DS 781
Reston, VA
U.S. Geological Survey
https://doi.org/10.3133/ds781
This part of DS 781 presents data for the shaded-relief bathymetry map of the Offshore of Refugio Beach map area, California. The raster data file for the shaded-relief map is included in "BathymetryHS_OffshoreRefugioBeach.zip," which is accessible from https://pubs.usgs.gov/ds/781/OffshoreRefugioBeach/data_catalog_OffshoreRefugioBeach.html. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P., Cochrane, G.R., Golden, N.E., Phillips, E.L., Ritchie, A.C., Krigsman, L.M., Dieter, B.E., Conrad, J.E., Greene, H.G., Seitz, G.G., Endris, C.A., Sliter, R.W., Wong, F.L., Erdey, M.D., Gutierrez, C.I., Yoklavich, M.M., East, A.E., and Hart, P.E. (S.Y. Johnson and S.A. Cochran, eds.), 2015, California State Waters Map Series—Offshore of Refugio Beach, California: U.S. Geological Survey Scientific Investigations Map 3319, pamphlet 42 p., 11 sheets, scale 1:24,000, https://doi.org/10.3133/sim3319.
The shaded-relief bathymetry map of the Offshore of Refugio Beach map area, California, was generated from bathymetry data collected 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. The offshore region was mapped by the USGS in 2008, using a 234.5-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.
To expand geologic mapping to the seafloor within the California's State Waters, to update coastal geologic mapping, and to contribute to a uniform regional geologic database, which can be used geographic information systems. Additionally, to provide a geologic map for the public and geoscience community to aid in assessments and mitigation of geologic hazards in the Refugio Beach coastal region and to provide sufficient geologic information for land-use and land-management decisions both onshore and offshore. 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. This information is not intended for navigational purposes.
Additional information about the USGS field activity from which some of these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=S808SC
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in Esri format, this metadata file may include some Esri-specific terminology.
20080708
2009
ground condition
none planned
-120.19
-119.99
34.55
34.38
USGS Metadata Identifier
USGS:cd574237-42b2-409f-9f2e-17e24196db28
Global Change Master Directory (GCMD)
Bathymetry
Seafloor Topography
ISO 19115 Topic Category
geoscientificInformation
environment
oceans
imageryBaseMapsEarthCover
Data Categories for Marine Planning
distributions
bathymetry and elevation
Marine Realms Information Bank (MRIB) keywords
multibeam echo sounder
seabed
USGS Thesaurus
sonar methods
bathymetry measurement
bathymetry
marine geophysics
maps and atlases
geospatial datasets
None
U.S. Geological Survey
USGS
Coastal and Marine Hazards and Resources Program
CMHRP
Pacific Coastal and Marine Science Center
PCMSC
Coastal and Marine Ecological Classification Standard (CMECS)
Marine Nearshore Subtidal
Marine Offshore Subtidal
Transform Continental Margin
Bight
Borderland
Continental/Island Shelf
Rock Substrate
Unconsolidated Mineral Substrate
Geographic Names Information System (GNIS)
Santa Barbara Channel
Refugio Beach
Pacific Ocean
State of California
Coastal and Marine Ecological Classification Standard (CMECS)
Southern California Bight Ecoregion
Coastal and Marine Ecological Classification Standard (CMECS)
Substrate
None
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes.
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060-5792
US
831-427-4747
pcmsc_data@usgs.gov
https://pubs.usgs.gov/ds/781/OffshoreRefugioBeach/images/BathymetryHS_OffshoreRefugioBeach.jpg
Shaded-relief bathymetry image of the Offshore of Refugio Beach map area.
JPEG
Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 10.0
Samuel Y. Johnson
Peter Dartnell
Guy R. Cochrane
Nadine E. Golden
Eleyne L. Phillips
Andrew C. Ritchie
Lisa M. Krigsman
Bryan E. Dieter
James E. Conrad
H. Gary Greene
Gordon G. Seitz
Charles A. Endris
Ray W. Sliter
Florence L. Wong
Mercedes D. Erdey
Carlos I. Gutierrez
Mary M. Yoklavich
Amy E. East
Patrick E. Hart
2015
California State Waters Map Series--Offshore of Refugio Beach, California
pamphlet and map sheets
Scientific Investigations Map
SIM 3319
Reston, VA
U.S. Geological Survey
https://doi.org/10.3133/sim3319
Not applicable for raster data.
Unspecified
Complete
Estimated to be no less than 2 m, owing to 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 5 cm, owing to 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 USGS mapping mission, Real Time Kinematic (RTK) GPS data and measurements of vessel motion (heave, pitch, and roll) were combined in a CodaOctopus F190 attitude and position system to produce a high-precision vessel attitude packet. This packet was transmitted to the acquisition software in real time and combined with instantaneous sound-velocity measurements at the transducer head before each ping. The returned samples were projected to the seafloor using a ray-tracing algorithm working with previously measured sound-velocity profiles. Statistical filters were applied to the raw samples that discriminate the seafloor returns (soundings) from other unintended targets in the water column. During the survey, the WGS84 (G1150) reference frame was used for both horizontal and vertical measurements. The soundings were post-processed to NAVD 1988. Finally, the soundings were converted into 2-m-resolution bathymetric-surface-model grids. During the Fugro Pelagos mapping mission that was completed as part of the National Coastal Mapping Program of USACE, the Leica ALS60 topographic-lidar and the SHOALS-1000T bathymetric-lidar systems were mounted on an aircraft that flew survey lines at an altitude of 300 to 400 m (bathymetry) and 300 to 1,200 m (topography), at speeds of between 135 and 185 knots. The ALS60 system collected data at a maximum pulse rate of 200 kHz, and the SHOALS system collected data at 1 kHz. Information on aircraft position, velocity, and acceleration were collected using the Novatel and POS A/V 410 systems (SHOALS) and the onboard GPS/IMU system (ALS60). Aircraft-position data were processed using POSPac software, and the results were combined with the lidar data to produce 3-D positions for each lidar shot. Various commercial and proprietary software packages were used to clean the data, to convert all valid data from ellipsoid to orthometric heights, and to export the data as a series of first-return topography and bathymetry ASCII files.
2009
Pete Dartnell
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Physical Scientist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
pdartnell@usgs.gov
USGS 2-m-resolution bathymetry data from mapping cruise S-8-08-SC were downloaded from USGS archives.
2012
Pete Dartnell
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Physical Scientist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
pdartnell@usgs.gov
Topographic - Bathymetric lidar data were provided to the USGS, PCMSC by USACE.
2010
Pete Dartnell
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Physical Scientist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
pdartnell@usgs.gov
Transform all bathymetry data to common projection, datum, and UTM zone. Merge all 2-m bathymetry data into 2-m-resolution bathymetry grid and clip to the Offshore of Refugio Beach, California, map area boundary. An illumination having an azimuth of 300 degrees and 45 degrees above the horizon was applied to the 2-m bathymetry grid to create shaded relief imagery.
2012
Pete Dartnell
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Physical Scientist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060-5792
USA
(831) 460-7415
pdartnell@usgs.gov
Added Distribution_Information section to metadata to facilitate data download.
20171005
U.S. Geological Survey
Alan O. Allwardt
Contractor -- Information Specialist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060
831-460-7551
831-427-4748
aallwardt@usgs.gov
Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.
20171005
U.S. Geological Survey
Alan O. Allwardt
Contractor -- Information Specialist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060
831-460-7551
831-427-4748
aallwardt@usgs.gov
Added keywords from Coastal and Marine Ecological Classification Standard (CMECS) to metadata.
20180426
U.S. Geological Survey
Alan O. Allwardt
Contractor -- Information Specialist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060
831-460-7551
831-427-4748
aallwardt@usgs.gov
Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.
20201019
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Performed minor edits to the metadata to correct typos. No data were changed
20211014
U.S. Geological Survey
Susan A. Cochran
Geologist
Mailing and Physical
2885 Mission Street
Santa Cruz
CA
95060
831-460-7545
scochran@usgs.gov
Metadata was modified to bring up to current USGS PCMSC standards. USGS Thesaurus and keywords were added, information for accompanying Open-File Report added to Abstract and Cross Reference sections, Point of Contact and Metadata Contact information was updated, and Process Steps were refined. Information about the data available for download and different Network Resource Name links and details were given in the Standard Order Process section. Minor typos were corrected. No data information was changed. The metadata available from a harvester may supersede metadata bundled within a download file. Users are advised to compare the metadata dates to determine which metadata file is most recent.
20230315
Susan A Cochran
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Geologist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060-5792
USA
(831) 460-7545
scochran@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
NAVD88
6378137.00
298.257223563
The complete 2-m resolution bathymetry grid of Offshore Refugio Beach was originally archived as an ESRI grid with the following attributes:
>Cell size = 2.0
>Number of rows = 8960
>Number of columns = 8960
>
>Data type = floating point
>
>Boundary
>Xmin = 758070.0
>Xmax = 775990.0
>Ymin = 3808160.0
>Ymax = 3826080.0
>
>Statistics
>Minimum value = -146.38
>Maximum value = 1.33
>Mean = -59.97
>Standard deviation = 26.04
>
>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
The .zip file (https://pubs.usgs.gov/ds/781/OffshoreRefugioBeach/data/BathymetryHS_OffshoreRefugioBeach.zip) includes the .tfw, .tif, .tif.aux.xml, and .tif.ovr, files, as well as FGDC-compliant metadata for the hillshaded bathymetry data layer in the Offshore of Refugio Beach map area of California.
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by 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.
GeoTiff
ArcMap (version 10.0, ESRI, 2011)
Raster data layer is registered TIFF image in the UTM Zone 10 coordinate system.
The .zip file for the TIFF image includes the image (.tif), the world registration file (.tfw), and FGDC-compliant metadata.
WinZip
11.7
https://pubs.usgs.gov/ds/781/OffshoreRefugioBeach/data/BathymetryHS_OffshoreRefugioBeach.zip
https://pubs.usgs.gov/ds/781/OffshoreRefugioBeach/data_catalog_OffshoreRefugioBeach.html
https://doi.org/10.3133/ds781
The first link will begin a direct download of the data. The second link is a landing page on which all of the downloadable data for a particular region are listed. The third link is a landing page for the entire data catalog.
none
20230315
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060-5792
US
831-427-4747
pcmsc_data@usgs.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time