Geologic character of the outer San Pedro Shelf seafloor, southern California (outer_shelf_character.tif)

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: United States Geological Survey (USGS)
Originator: Peter Dartnell
Originator: Brian Edwards
Publication_Date: 2012
Title:
Geologic character of the outer San Pedro Shelf seafloor, southern California (outer_shelf_character.tif)
Geospatial_Data_Presentation_Form:
ERDAS Imagine (.img) and TIFF image
Online_Linkage: <https://pubs.usgs.gov/ds/552/>
Larger_Work_Citation:
Citation_Information:
Originator: Florence L. Wong
Originator: Brian D. Edwards
Originator: Peter Dartnell
Originator: Eleyne L. Phillips
Publication_Date: 2012
Title:
Seafloor Geology and Benthic Habitats of the San Pedro shelf, southern California
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: U.S. Geological Survey Digital Series
Issue_Identification: 552
Publication_Information:
Publication_Place: Menlo Park, California
Publisher: U.S. Geological Survey
Online_Linkage: <https://pubs.usgs.gov/ds/552/>
Description:
Abstract:
OUTER_SHELF_CHARACTER.TIF is a raster image showing seafloor geologic character of the outer San Pedro shelf, southern California, as interpreted from sonar images, multibeam bathymetry, seafloor video and photos, and from sediment sampling. Data resolutions is 16 m. The inner part of the shelf is mapped in an accompanying dataset inner_shelf_character.img with a resolution of 4 m.
This data set is one of a collection of digital files of a geographic information system (GIS) of spatially referenced data related to the study of seafloor geology and benthic habitats of the San Pedro shelf off southern California.
The San Pedro shelf study area covers approximately 400 sq km offshore of the metropolitan Los Angeles area out to a water depth of about 150 m (492 ft). The seafloor hosts a rich and varied biologic community and is subject to anthropogenic inputs from shipping traffic, sewage outfall systems, commercial fisheries, and recreational use. Between 1998 and 2004, the U.S. Geological Survey (in cooperation with Los Angeles and Orange County Sanitation Districts) mapped the seafloor with sonar technologies, collected video and still photography, and collected sediment samples to develop a characterization of this shelf area.
Purpose:
These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) or other software to display the seafloor character map of the San Pedro Shelf, southern California.
Supplemental_Information:
Information for USGS Coastal and Marine Geology related activities are online at 
 <http://walrus.wr.usgs.gov/infobank/a/a398sc/html/a-3-98-sc.meta.html>
 <http://walrus.wr.usgs.gov/infobank/c/c199sc/html/c-1-99-sc.meta.html>
 <http://walrus.wr.usgs.gov/infobank/o/o104sc/html/o-1-04-sc.meta.html>
 <http://walrus.wr.usgs.gov/infobank/e/e204sc/html/e-2-04-sc.meta.html>
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2004
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -118.33813
East_Bounding_Coordinate: -117.95043
North_Bounding_Coordinate: 33.71202
South_Bounding_Coordinate: 33.56497
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD DIF, Version 5.0a, September 1996: Parameter Keywords
Theme_Keyword:
Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
Theme_Keyword:
Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Marine Geology
Theme_Keyword: Multibeam
Theme_Keyword: Bathymetry
Theme_Keyword: Water Depth
Theme_Keyword: Seafloor Topography
Theme_Keyword: Seafloor Character
Theme_Keyword: benthic habitat
Theme_Keyword: coastal shelf
Theme_Keyword: coastal geology
Theme_Keyword: seafloor geology
Theme_Keyword: seafloor character
Theme_Keyword: seafloor habitat
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: San Pedro, California
Place_Keyword: San Pedro Bay, California
Place_Keyword: Long Beach, California
Place_Keyword: Los Angeles, California
Place_Keyword: Los Angeles Harbor, California
Place_Keyword: Long Beach Middle Harbor, California
Place_Keyword: Seal Beach, California
Place_Keyword: California
Place_Keyword: USA
Place:
Place_Keyword_Thesaurus: GEOnet Names Server
Place_Keyword: north Pacific Ocean
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: San Pedro shelf, southern California
Access_Constraints: None
Use_Constraints:
Please recognize the U.S. Geological Survey (USGS) as the source of this information. USGS-authored or produced data and information are in the public domain.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Peter Dartnell
Contact_Organization:
United States Geological Survey (USGS) Coastal and Marine Geology (CMG)
Contact_Position: Physical Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA
Contact_Voice_Telephone: (650) 329-5460
Contact_Facsimile_Telephone: (650) 329-5411
Contact_Electronic_Mail_Address: pdartnell@usgs.gov
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3500
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Not applicable for raster data.
Logical_Consistency_Report: Unspecified
Completeness_Report: Complete
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: 16 meters
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
0.05 percent of the water depth. Depths corrected to mean lower low water datum.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Gardner, J.V., Hughes-Clarke, J.E., and Mayer, L.A.
Publication_Date: 1999
Title:
Cruise Report: RV Coastal Suveryor Cruise C-1-99-SC, Multibeam Mapping of the Long Beach, California, Continental Shelf
Online_Linkage: <http://geopubs.wr.usgs.gov/open-file/of99-360/>
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1999
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Gardner and others, 1999
Source_Contribution: data collection methods and data
Source_Information:
Source_Citation:
Citation_Information:
Originator: Gardner, J.V., and Mayer, L.A.
Publication_Date: 1998
Title:
Cruise Report: RV Ocean Alert Cruise A2-98-SC, Mapping the Southern California Continental Margin
Other_Citation_Details: Cruise ID should be A-3-98-SC not, A-2-98-SC
Online_Linkage: <http://geopubs.wr.usgs.gov/open-file/of98-475/>
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Gardner and Mayer, 1998
Source_Contribution: data collection methods and data
Source_Information:
Source_Citation:
Citation_Information:
Originator: Dartnell, P., and Gardner, J.V.
Publication_Date: 2004
Title:
Predicting seafloor facies from multibeam bathymetry and backscatter data
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Photogrammetric Engineering and Remote Sensing
Issue_Identification: Vol. 70, No.9, pp 1081-1091
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2004
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Dartnell and Gardner, 2004a
Source_Contribution: methods description
Source_Information:
Source_Citation:
Citation_Information:
Originator: Dartnell, P., and Gardner, J.V.
Publication_Date: 2004
Title:
Predicted Seafloor Facies of Central Santa Monica Bay, California
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: USGS Open-File Report
Issue_Identification: 2004-1081
Online_Linkage: <https://pubs.usgs.gov/of/2004/1081/>
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2004
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Dartnell and Gardner, 2004b
Source_Contribution: methods description
Process_Step:
Process_Description:
The San Pedro shelf was mapped over a two-year period using two different multibeam echo-sounding systems (MBES). In 1998, the outer mainland shelf and slope were mapped using a Kongsberg EM300 MBES (30kHz) (A-3-98-SC; Gardner and others, 1998).
In 1999, the inner mainland shelf from the Palos Verdes Peninsula south to Dana Point was mapped using a Kongsberg EM3000D MBES (300kHz) (C-1-99-SC; Gardner and others, 1999; Dartnell and Gardner, 2004a, 2004b).
Process_Date: 1998-1999
Process_Step:
Process_Description:
In October 2004, 365 line kilometers of sea floor video and over 13,000 photographs were collected over the entire shelf (O-1-04-SC) and in December 2004, 182 sediment samples were collected over the shelf (E-2-04-SC).
Process_Date: 2004
Process_Step:
Process_Description:
A hierarchical decision-tree classification scheme (ERDAS Imagine) was used to classify the multibeam bathymetry and backscatter data into a seafloor character map - rock or hardground, bioturbated sand, sand with bedforms and shell hash, bioturbated muddy sand, and bioturbated sandy mud. Seafloor video, photographs, real-time observations, and the sediment textural data were all used to develop, test, and refine rules in the hierarchical decision-tree classification scheme. The final interpreted map was saved and exported into the Imagine (.img) and TIFF (.tif) formats available in this report.
Process_Date: 2005
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Peter Dartnell
Contact_Organization:
United States Geological Survey (USGS) Coastal and Marine Geology (CMG)
Contact_Position: Physical Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA
Contact_Voice_Telephone: (650) 329-5460
Contact_Facsimile_Telephone: (650) 329-5411
Contact_Electronic_Mail_Address: pdartnell@usgs.gov
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: d:\temp\xml2B2.tmp
Process_Date: 20120827
Process_Time: 08385000
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 5189
Column_Count: 12406
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 16.0
Ordinate_Resolution: 16.0
Planar_Distance_Units: Meters
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 11
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -117.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Geodetic_Model:
Horizontal_Datum_Name: WGS84
Ellipsoid_Name: WGS84
Semi-major_Axis: 6378137.00 meters
Denominator_of_Flattening_Ratio: 0.003352811
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: facies_outershelf.img.vat
Entity_Type_Definition: raster value attribute table
Entity_Type_Definition_Source: ERDAS
Attribute:
Attribute_Label: OID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Value
Attribute_Definition: internal sequence number
Attribute_Definition_Source: ERDAS Imagine
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Red
Attribute_Definition: red component of RGB value for pixel
Attribute_Definition_Source: ERDAS Imagine
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 1
Attribute:
Attribute_Label: Hypothesis
Attribute_Definition: numeric value applied to Class_name
Attribute_Definition_Source: this study
Attribute_Domain_Values:
Unrepresentable_Domain:
Descriptive name assigned to seafloor characteristics: 0 undefined; 1 rugose rock; 2 sand; 3 mixed rock, sand; 4 muddy sand; 5 coarser sand, shell material.
Attribute:
Attribute_Label: Green
Attribute_Definition: red component of RGB value for pixel
Attribute_Definition_Source: ERDAS Imagine
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 1
Attribute:
Attribute_Label: Blue
Attribute_Definition: blue component of RGB value for pixel
Attribute_Definition_Source: ERDAS Imagine
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 1
Attribute:
Attribute_Label: Opacity
Attribute_Definition: Opacity
Attribute_Definition_Source: ERDAS Imagine
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: not opaque
Enumerated_Domain_Value_Definition_Source: ERDAS Imagine
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: opaque
Enumerated_Domain_Value_Definition_Source: ERDAS Imagine
Attribute:
Attribute_Label: Count
Attribute_Definition: Pixel count in category
Attribute_Definition_Source: ERDAS Imagine
Attribute_Domain_Values:
Unrepresentable_Domain: pixel count of class or category
Attribute:
Attribute_Label: Class_name
Attribute_Definition: assigned character description
Attribute_Definition_Source: this study.
Attribute_Domain_Values:
Unrepresentable_Domain:
Descriptive name assigned to seafloor characteristics: undefined; rugose rock; sand; mixed rock, sand; muddy sand; coarser sand, shell material.
Overview_Description:
Entity_and_Attribute_Overview:
Facies_outershelf.img is an ERDAS Imagine image with the following attributes:
red: rock or high relief beige: sand yellow: coarse, clean sand green: muddy sand
Entity_and_Attribute_Detail_Citation: This study.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
United States Geological Survey (USGS) Information Services
Contact_Address:
Address_Type: mailing and physical address
Address: 345 Middlefield Rd., MS-999
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: (650)329-5460
Resource_Description: Downloadable Data
Distribution_Liability:
These data not intended for navigational purposes.
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, these data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user.
Neither the U.S. Government nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any data, software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights.
Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: TIFF
Format_Version_Number: 42
Format_Specification: zip file containing raster image, world, and metadata files
File_Decompression_Technique: unzip
Transfer_Size: 66 MB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://pubs.usgs.gov/ds/552/>
Fees: None
Metadata_Reference_Information:
Metadata_Date: 2010
Metadata_Review_Date: 2010
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
United States Geological Survey (USGS) Coastal and Marine Geology (CMG)
Contact_Person: Florence Wong
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA
Contact_Voice_Telephone: (650) 329-5327
Contact_Electronic_Mail_Address: fwong@usgs.gov
Metadata_Standard_Name:
Content Standard for Digital Geospatial Metadata ("CSDGM version 2")
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: universal time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.15 on Mon Aug 27 10:21:50 2012