Andrew C. Ritchie
2012
Curvature--Hueneme Canyon and Vicinity, California
raster digital data
Data Series
DS 781
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/ds/781/
https://pubs.usgs.gov/ds/781/HuenemeCanyon/data_catalog_HuenemeCanyon.html
https://pubs.usgs.gov/ds/781/HuenemeCanyon/data/Curvature_HuenemeCanyon.zip
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/
https://pubs.usgs.gov/ds/781/HuenemeCanyon/data_catalog_HuenemeCanyon.html
This part of DS 781 presents data for the curvature map of the Hueneme Canyon and vicinity map area, California. The raster data file is included in "Curvature_HuenemeCanyon.zip," which is accessible from https://pubs.usgs.gov/ds/781/HuenemeCanyon/data_catalog_HuenemeCanyon.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., Kvitek, R.G., Greene, H.G., Krigsman, L.M., Endris, C.A., Clahan, K.B., Sliter, R.W., Wong, F.L., Yoklavich, M.M., and Normark, W.R. (S.Y. Johnson, ed.), 2012, California State Waters Map Series-—Hueneme Canyon and Vicinity, California: U.S. Geological Survey Scientific Investigations Map 3225, 41 p., 12 sheets, scale 1:24,000, https://pubs.usgs.gov/sim/3225/.
This metadata describes a raster data set of smoothed curvature used as an interpretation aid for mapping geomorphology of Hueneme Canyon. The curvature raster, in conjunction with bathymetry data, amplitude data, and seismic reflection profiles, was used to interpret geology and geomorphology of Hueneme Canyon.
Interpretation aid for geologic mapping of Hueneme Canyon
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.
2006
2007
ground condition
none planned
-119.256437
-119.207298
34.144867
34.061609
Global Change Master Directory (GCMD)
Seafloor Topography
Data Categories for Marine Planning
Bathymetry and Elevation
Marine Realms Information Bank (MRIB) keywords
seabed
multibeam echo sounder
sidescan sonar
USGS Thesaurus
sonar methods
image mosaics
marine geophysics
lidar
maps and atlases
geospatial datasets
None
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
Pacific Coastal and Marine Science Center
PCMSC
Coastal and Marine Ecological Classification Standard (CMECS)
Marine Nearshore Subtidal
Marine Offshore Subtidal
Transform Continental Margin
Continental/Island Shelf
ISO 19115 Topic Category
geoscientificinformation
imageryBaseMapsEarthCover
oceans
Geographic Names Information System (GNIS)
Hueneme Canyon
Ventura
Port of Hueneme
Oxnard
State of California
Pacific Ocean
Coastal and Marine Ecological Classification Standard (CMECS)
Southern California Ecoregion
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/HuenemeCanyon/images/Curvature_HuenemeCanyon.jpg
Image showing curvature data of Hueneme Canyon and Vicinity
JPEG
Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.0.2414
Samuel Y. Johnson
Peter Dartnell
Guy R. Cochrane
Nadine E. Golden
Eleyne L. Phillips
Andrew C. Ritchie
Rikk G. Kvitek
H. Gary Greeene
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
pamphlet and map sheets
Scientific Investigations Map
3225
Reston, VA
U.S. Geological Survey
http://pubs.usgs.gov/sim/3225/
Not applicable for raster data.
Curvature units were checked for validity by comparing calculated values with slope raster values
Data are complete for the map area indicated
Bathymetric sonar and LiDAR data have a horizontal accuracy greater than the resolution of the base data. the smoothing algorithm applied to the data reduces the precision of the curvature calculation by averaging values over a 4-cell radius, but does not decrease horizontal accuracy.
Peter Dartnell
Eleyne L. Phillips
Andrew C. Ritchie
Rikk G. Kvitek
Samuel Y. Johnson
2012
Bathymetry--Hueneme Canyon and Vicinity, California
Data Series
DS 781
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/ds/781/
https://pubs.usgs.gov/ds/781/HuenemeCanyon/data_catalog_HuenemeCanyon.html
https://pubs.usgs.gov/ds/781/HuenemeCanyon/data/Bathymetry_HuenemeCanyon.zip
digital file of gridded bathymetry data (ArcInfo GRID)
2006
2009
ground condition
bathy
Gridded bathymetry data (2-meter resolution).
Source elevation data were combined into a single elevation raster and smoothed using a FocalMean algorithm in ArcGIS 9.3.1, as follows:
focalmean([elevation_source], circle, 4, data)
This operation smoothes the data by calculating the mean of all cells for which the cell center is within a 4-cell radius of the target cell - essentially calculating a rolling mean of elevation over the entire grid.
bathy
2010
smooth_bathy
The curvature of the smoothed source elevation data was calculated using the curvature function in ArcGIS 9.3.1. Curvature is the second derivative of the elevation surface (the slope of the slope) calculated using the methods of Zeverbergen and Thorne (1987). The ArcGIS calculation for total curvature is more accurately described as representing the difference between the cell's value and the average value along the four cardinal directions. Differences between the ArcGIS implementation and the original equations of Zeverbergen and Thorne (1987) are (1) the sign is reversed, and (2) the end value is multiplied by 100.
Reference Cited:
Zeverbergen, L.W., and Thorne, C.R., 1987, Quantitative analysis of land surface topography: Earth Surface Processes and Landforms, v. 12, p. 47-56.
smooth_bathy
2010
Metadata was modified to bring up to current USGS PCMSC standards. Information for accompanying Scientific Investigations Report added to Abstract and Cross Reference sections. Point of Contact information was updated. USGS Thesaurus and keywords were added, and Process Steps were refined. Details about different Network Resource Name links was given in the Access Instructions section. Phone number for Metadata Contact was corrected. Minor typos were corrected. No data information was changed.
20180926
Susan A Cochran
U.S. Geological Survey, Pacific Coastal and Marine Science Center
mailing and physical
2885 Mission St.
Santa Cruz
CA
95060
United States
831-460-7545
scochran@usgs.gov
Raster
Pixel
4572
2168
WGS 1984 UTM Zone 11N
0.9996
-117.0
0.0
500000.0
0.0
coordinate pair
0.000000002220024164500956
0.000000002220024164500956
Meter
D WGS 1984
WGS 1984
6378137.0
298.257223563
value
cell values are curvature values, represented as 32 bit float in the GeoTiff standard format. A worldfile (TFW) is provided as well.
USGS
U.S. Geological Survey
mailing and physical address
345 Middlefield Rd
Menlo Park
CA
94025-3561
USA
(650) 329-4309
The .zip file (Curvature_HuenemeCanyon.zip) includes the .tfw, .tif, .tif.aux.xml, and .tif.ovr, files, as well as FGDC-compliant metadata for the Curvature data layer in the Hueneme Canyon and Vicinity region 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 11 coordinate system.
The .zip file for the TIFF image includes the image (.tif), the world registration file (.tfw), and FGDC-compliant metadata.
WinZip
28
https://pubs.usgs.gov/ds/781/HuenemeCanyon/data/Curvature_HuenemeCanyon.zip
https://pubs.usgs.gov/ds/781/HuenemeCanyon/data_catalog_HuenemeCanyon.html
https://pubs.usgs.gov/ds/781/
Data can be downloaded using the Network Resource links. 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
The downloadable data file has been compressed with the "zip" command and can be unzipped with Winzip (or other tool) on Windows systems. To utilize these data, the user must have software capable of uncompressing the WinZip file and importing and viewing an Esri ArcMap TIFF. Users should download the ArcGIS Project File, HuenemeCanyonGIS.mxd.zip, a compressed (with the "zip" command) version of the ArcMap document (.mxd) that has all the data layers loaded in the table of contents for "Hueneme Canyon and Vicinity" and has all the data symbolized as on the map sheets. Download and save this ArcGIS project file, including all data layers, to the directory the user has created for this GIS.
20180926
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