Samuel Y. Johnson
Florence L. Wong
Eleyne L. Phillips
2012
Isopachs--Santa Barbara Channel, California
version 1
vector digital data
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/
Samuel Y. Johnson
Peter Dartnell
Guy R. Cochrane
Nadine E. Golden
Eleyne L. Phillips
Andrew C. Ritchie
Rikk G. Kvitek
H. Gary Greene
Lisa M. Krigsman
Charles A. Endris
Kevin B. Clahan
Ray W. Sliter
Florence L. Wong
Mary M. Yoklavich
William R. Normark
2012
California State Waters Map Series--Hueneme Canyon and Vicinity, California
map
Scientific Investigations Map
SIM 3225
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/sim/3225/
This part of DS 781 presents data for the isopachs for the Santa Barbara Channel, California, region. The vector data file is included in "Isopachs_SantaBarbaraChannel.zip," which is accessible from https://pubs.usgs.gov/ds/781/SantaBarbaraChannel/data_catalog_SantaBarbaraChannel.html.
These isopachs for the Santa Barbara Channel are published in Scientific Investigations Map 3225, "California State Waters Map Series--Hueneme Canyon and Vicinity, California" (see sheet 9). In addition, these isopachs will be published in five future California State Waters Map Series SIMs of the region (namely, the Offshore of Ventura, Offshore of Carpinteria, Offshore of Santa Barbara, Offshore of Coal Oil Point, and Offshore of Refugio Beach map areas) [note that, at the time of this writing, two of the other five SIMs have been published: the Offshore of Ventura map area (SIM 3254), and the Offshore of Carpinteria map area (SIM 3261)].
As part of the USGS's California Seafloor Mapping Program, a 50-m grid of sediment thickness for the seafloor within the 3-nautical-mile limit of California's State Waters from the Offshore of Refugio Beach map area to the Hueneme Canyon and vicinity map area. Source data include seismic-reflection profile data, collected in 2007 (USGS cruise Z-3-07-SC) and 2008 (USGS cruise S-7-08-SC), supplemented with outcrop and geologic structure data (for example, sheets 8, 10, SIM 3225). The resulting grid covers an area of approximately 600 sq km. The volume of sediment accumulated since the Last Glacial Maximum is approximately 9,000 million cubic meters. Contours at 2.5-meter intervals were derived from this grid.
These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.
Sediment thickness and volume within each of the map areas
> Offshore of Refugio Beach -120.19308, 34.37821, -119.99299, 34.54394
> Offshore of Coal Oil Point -120.00703, 34.33620, -119.80704, 34.50193
> Offshore of Santa Barbara -119.81596, 34.32279, -119.61634, 34.48824
> Offshore of Carpinteria -119.62566, 34.28801, -119.42646, 34.45318
> Offshore of Ventura -119.44808, 34.21495, -119.24937, 34.37985
> Hueneme Canyon and vicinity -119.33785, 34.05822, -119.13973, 34.22296
> volume
> map ---sediment thickness--- area (million
> block MIN MAX MEAN STD (sq km) cu m)
> Offshore of Refugio Beach 0.0 12.3 2.7 2.8 97 258
> Offshore of Coal Oil Point 0.0 16.6 4.0 4.1 100 402
> Offshore of Santa Barbara 0.0 15.5 3.1 3.2 99 308
> Offshore of Carpinteria 0.0 45.0 10.9 9.5 97 1060
> Offshore of Ventura 0.0 56.6 34.1 12.9 105 3584
> Hueneme Canyon and vicinity 19.0 48.6 36.0 5.2 95 3421
> Total 594 9034
Additional information about the field activities from which this data set was derived are available online at
> http://walrus.wr.usgs.gov/infobank/z/z307sc/html/z-3-07-sc.meta.html
> http://walrus.wr.usgs.gov/infobank/s/s708sc/html/s-7-08-sc.meta.html
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 ArcInfo format, this metadata file may include some ArcInfo-specific terminology.
2007
2009
ground condition
None planned
-120.206232
-119.123028
34.492447
34.027787
None
marine geology
coastal geology
sediment thickness
sediment isopach
seismic-reflection data
ISO 19115 Topic Category
environment
geoscientificInformation
oceans
Geographic Names Information System
Pacific Ocean
Santa Barbara Channel
Hueneme Canyon
Ventura
Carpinteria
Santa Barbara
Coal Oil Point
Refugio Beach
California
USA
GEOnet Names Server
north Pacific Ocean
None.
Not to be used at scales greater than 1:24,000. Not to be used for navigation.
U.S. Geological Survey
Florence L. Wong
Geologist
mailing and physical address
345 Middlefield Road, MS 999
Menlo Park
CA
94025
USA
650-329-5327
fwong@usgs.gov
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
Data points are approximately 1 m apart along tracklines and 1,000-2,000 m apart between tracks. 50-m cell size for interpolation is better supported along track than between.
All vector geometry and attributes present.
Sediment thickness data points exported from Seisworks profiling software were processed within the California 3-nmi limit, omitting values over Hueneme Canyon.
The chirp sonar instrument is deployed under the research vessel with about 10 m of variation in position. The sparker position may vary as much as 20 m from the navigation reference on the vessel.
Samuel Y. Johnson, Ray W. Sliter, William R. Normark, and Andrew C. Ritchie
2012
Seismic-reflection profiles, Hueneme Canyon and vicinity, California
version 1
map
Scientific Investigations Map
SIM 3225 [sheet 8 of 12]
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/sim/3225/
disc
2012
publication date
Johnson and others (2012) [sheet 10 in SIM 3225]
bedrock distribution, faults
Andrew C. Ritchie, Samuel Y. Johnson, and Kevin B. Clahan
2012
Offshore and onshore geology and geomorphology, Hueneme Canyon and vicinity, California
version 1
map
Scientific Investigations Map
SIM 3225 [sheet 10 of 12]
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/sim/3225/
disc
2012
publication date
Ritchie and others (2012) [sheet 10 in SIM 3225]
bedrock distribution, faults
Chirp and sparker seismic-reflection data from USGS field activity Z-3-07-SC and chirp data from field activity S-7-08-SC were imported to SEISWORKS. (Ray Sliter, rsliter@usgs.gov)
2011
Seabed and depth to Last Glacial Maximum horizons digitized in Seisworks (S.Y. Johnson, sjohnson@usgs.gov)
2011
Data exported and converted with 1,500 m/sec velocity in water and 1,600 m/sec velocity in sediment. (Ray Sliter, rsliter@usgs.gov).
2011
X, Y locations and sediment thickness value Z imported to ArcGIS format as points, interpolated to preliminary surface with TopoRaster. Supplemental manually generated contours were combined for secondary calculation. Final surface treated as grids separated by the Oak Ridge Fault then recombined. (Florence Wong, fwong@usgs.gov; Eleyne Phillips, ephillips@usgs.gov)
2011
Sediment thickness grid contoured at 2.5-meter intervals. (Eleyne Phillips, ephillips@usgs.gov)
2011
Vector
String
352
Universal Transverse Mercator
11
0.999600
-117.000000
0.000000
500000.000000
0.000000
row and column
50.000000
50.000000
meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
isopachs
lines of equal thickness
standard sedimentology
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
ID
sequential feature number
this study
sequential feature numbers
CONTOUR
line of equal thickness
this study
thickness measure
United States Geological Survey (USGS)
Coastal and Marine Geology (CMG)
Florence L. Wong
Geologist, GIS Coordinator
mailing and physical address
USGS, MailStop 999, 345 Middlefield Road
Menlo Park
CA
94025-3561
USA
(650) 329-5327
(650) 329-5190
fwong@usgs.gov
Downloadable Data. USGS DS 781
Please recognize the U.S. Geological Survey (USGS) as the source of
this information.
Although these data have been used by the U.S. Geological Survey,
U.S. Department of the Interior, no warranty expressed or implied
is made by the U.S. Geological Survey as to the accuracy of the
data.
The act of distribution shall not constitute any such warranty,
and no responsibility is assumed by the U.S. Geological Survey in
the use of this data, software, or related materials.
Compressed file including Arcinfo grid and metadata.
9.3.1
Arcinfo grid
windows winzip or unix gunzip
7.7 MB
https://pubs.usgs.gov/ds/781/
none
20110512
201105
U.S. Geological Survey
Florence L. Wong
Geologist
mailing and physical address
345 Middlefield Road, MS 999
Menlo Park
California
94025
USA
650-329-5327
fwong@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
http://www.esri.com/metadata/esriprof80.html
ESRI Metadata Profile