Isopachs--Punta Gorda to Point Arena, California

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Jeff W. Beeson
Originator: Samuel Y. Johnson
Originator: Susan A. Cochran
Publication_Date: 2019
Title: Isopachs--Punta Gorda to Point Arena, California
Geospatial_Data_Presentation_Form: shapefile
Series_Information:

Series_Name: Data Series
Issue_Identification: DS 781

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/P9PNNI9H
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5d128898e4b0941bde56eb62

Larger_Work_Citation:

Citation_Information:

Originator: Nadine E. Golden
Publication_Date: 2013
Title: California State Waters Map Series Data Catalog
Geospatial_Data_Presentation_Form: database
Series_Information:

Series_Name: Data Series
Issue_Identification: DS 781

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/ds/781/
Online_Linkage:

https://cmgds.marine.usgs.gov/data/csmp/ PuntaGordaToPointArena/data_catalog_PuntaGordaToPointArena.html

Description:

Abstract:

This part of DS 781 presents data for the isopachs of the Punta Gorda to Point Arena, California, region. The vector data file is included in the "Isopachs_PuntaGordaToPointArena.zip," which is accessible from https://doi.org/10.5066/P9PNNI9H. As part of the USGS's California State Waters Mapping Project, a 50-m grid of sediment thickness for the seafloor within the 3-nautical mile limit between Punta Gorda and Point Arena was generated from seismic-reflection data collected between 2010 and 2012, and supplemented with geologic structure (fault) information following the methodology of Wong (2012). Reference Cited: Wong, F. L., Phillips, E.L., Johnson, S.Y., and Sliter, R.W., 2012, Modeling of depth to base of Last Glacial Maximum and seafloor sediment thickness for the California State Waters Map Series, eastern Santa Barbara Channel, California: U.S. Geological Survey Open-File Report 2012-1161, 16 p. (available at https://pubs.usgs.gov/of/2012/1161/).

Purpose:

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 aid in assessments and mitigation of geologic hazards in the Punta Gorda to Point Arena coastal region and to provide sufficient geologic information for land-use and land-management decisions both onshore and offshore. This information is not intended for navigational purposes.

Supplemental_Information:

Additional information about the field activities from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=C110NC https://cmgds.marine.usgs.gov/fan_info.php?fan=B510NC https://cmgds.marine.usgs.gov/fan_info.php?fan=B0412NC
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.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20100809
Ending_Date: 20120925

Currentness_Reference: ground condition at time seismic data were collected

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -124.452888
East_Bounding_Coordinate: -123.702617
North_Bounding_Coordinate: 40.300181
South_Bounding_Coordinate: 39.020333

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5d128898e4b0941bde56eb62

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Physical Habitats and Geomorphology
Theme_Keyword: Distributions

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: marine geology
Theme_Keyword: seismic reflection methods
Theme_Keyword: maps and atlases
Theme_Keyword: stratigraphic thickness
Theme_Keyword: geospatial datasets

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: sediment deposition
Theme_Keyword: seismic reflection profiling

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: Pacific Coastal and Marine Science Center
Theme_Keyword: PCMSC
Theme_Keyword: sediment thickness
Theme_Keyword: sediment isopach

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Pacific Ocean
Place_Keyword: State of California
Place_Keyword: Punta Gorda
Place_Keyword: Point Delgada
Place_Keyword: Shelter Cove
Place_Keyword: Fort Bragg
Place_Keyword: Mendocino
Place_Keyword: Point Arena

Place:

Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS)
Place_Keyword: Spanish Canyon
Place_Keyword: Delgada Canyon
Place_Keyword: Noyo Canyon

Access_Constraints: None
Use_Constraints:

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 of the dataset and in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Contact_Person: PCMSC Science Data Coordinator

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: US

Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

https://www.sciencebase.gov/catalog/file/get/5d1288d4e4b0941bde56eb6b?name=Isopachs_PuntaGordaToPointArena.jpg&allowOpen=true

Browse_Graphic_File_Description: Isopachs for the region between Point Sur and Point Arguello
Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; Esri ArcCatalog 10.0

Cross_Reference:

Citation_Information:

Originator: Jeff W. Beeson
Originator: Originator: Samuel Y. Johnson
Publication_Date: 2019
Title:

Offshore shallow structure and sediment distribution, Punta Gorda to Point Arena, northern California

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2019-1072

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.3133/ofr20191072

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The data points from seismic-reflection profiles are dense along tracklines (about 1-2 m apart) and sparse between tracklines (typically 1,000 m apart). 50-m cell size for interpolation is better supported along track than between.

Logical_Consistency_Report:

No formal logical accuracy tests were conducted. All vector geometry and attributes are present.

Completeness_Report:

Sediment thickness data points exported from Kingdom Suite profiling software were processed within the California 3-nmi limit.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The sparker position may vary as much as 20 m from the navigation reference on the vessel.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Estimated to be approximately 1 m, along the track lines where data is well constrained, but may be much greater in areas where interpolation occurred.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Beeson, J.W.
Originator: Johnson, S.Y.
Originator: Goldfinger, C.
Originator: Hartwell, S.R.
Publication_Date: 2016
Title: Marine geophysical data—Point Arena to Cape Mendocino
Geospatial_Data_Presentation_Form: SEG-Y
Publication_Information:

Publication_Place: online
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F7GT5K8R

Type_of_Source_Media: SEG-Y
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20100809
Ending_Date: 20120925

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: seismic
Source_Contribution:

digital seismic data from Punta Gorda to Point Arena used to interpret subsurface geologic structure

Source_Information:

Source_Citation:

Citation_Information:

Originator: Jeff W. Beeson
Originator: Samuel Y. Johnson
Publication_Date: 2019
Title: Faults—Punta Gorda to Point Arena, California
Geospatial_Data_Presentation_Form: shapefile
Series_Information:

Series_Name: U.S. Geological Survey data release
Issue_Identification: doi: 10.5066/P9PNNI9H

Publication_Information:

Publication_Place: online
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/P9PNNI9H

Type_of_Source_Media: shapefile
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2019

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: faults
Source_Contribution:

faults from Punta Gorda to Point Arena were used to interpret subsurface geologic structure

Process_Step:

Process_Description:

Water bottom (seabed) and depth to base of the Last Glacial Maximum (LGM) horizons were digitized from seismic-reflection data using Kingdom Suite software. The difference between the two horizons was exported from Kingdom Suite for every shot point as XY coordinates (UTM Zone 10) and two-way travel time (TWT). The thickness was determined by applying a sound velocity to the TWT of 1,500 m/sec in water and 1,600 m/sec velocity in sediment, resulting in sediment thickness values.

Source_Used_Citation_Abbreviation: seismic
Source_Used_Citation_Abbreviation: faults
Process_Date: 2017
Source_Produced_Citation_Abbreviation: SedimentThicknessPoints

Process_Step:

Process_Description:

XY locations and sediment thickness values Z were imported to ArcGIS format as points and interpolated to a preliminary surface with TopoRaster from which isopachs (thickness contours) were extracted at 3.5 m intervals, with an additional contour at 0.25 m. Further refinement of this sediment thickness map and the isopach shapefile (see https://pubs.usgs.gov/ds/781/PuntaGordaToPointArena/data/Isopachs_PuntaGordaToPointArena.zip) was accomplished through several iterations of manual editing to incorporate geology and fault information following the methodology of Wong (2012; see http://pubs.usgs.gov/of/2012/1161/).

Source_Used_Citation_Abbreviation: SedimentThicknessPoints
Process_Date: 2017
Source_Produced_Citation_Abbreviation: Isopachs

Process_Step:

Process_Description:

Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.

Process_Date: 20201019
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: vector
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 1332

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:

UTM_Zone_Number: 10
Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -123.00000
Latitude_of_Projection_Origin: 0.00000
False_Easting: 500000.0
False_Northing: 0.00

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:

Abscissa_Resolution: 50.0
Ordinate_Resolution: 50.0

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: WGS84
Ellipsoid_Name: WGS84
Semi-major_Axis: 6378137.00
Denominator_of_Flattening_Ratio: 298.257223563

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Isopachs
Entity_Type_Definition: lines of equal thickness
Entity_Type_Definition_Source: standard sedimentology

Attribute:

Attribute_Label: FID
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: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: OBJECTID
Attribute_Definition: sequential feature number
Attribute_Definition_Source: this study
Attribute_Domain_Values:

Unrepresentable_Domain: sequential feature numbers

Attribute:

Attribute_Label: CONTOUR
Attribute_Definition: line of equal thickness
Attribute_Definition_Source: this study
Attribute_Domain_Values:

Unrepresentable_Domain: lines of equal thickness

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey - ScienceBase

Contact_Address:

Address_Type: mailing and physical
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225

Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov

Resource_Description:

The .zip file (Isopachs_PointSurToPointArugello.zip) includes the .cpg, .dbf, .prj, .sbn, .sbx, .shp, .shp.xml, and .shx files, as well as FGDC-compliant metadata for the Isopach data layer in the Punta Gorda to Point Arena region of California.

Distribution_Liability:

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.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: shapefile
Format_Version_Number: ArcMap (version 10.0, Esri, 2011)
Format_Specification:

Line features are in shapefile format and are projected in the UTM Zone 10 coordinate system

Format_Information_Content:

The .zip file includes the .cpg, .dbf, .prj, .sbn, .sbx, .shp, .shp.xml, and .shx files, as well as FGDC-compliant metadata for the Isopach data layer in the Punta Gorda to Point Arena region of California.

File_Decompression_Technique: Winzip
Transfer_Size: 15.9

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/5d128898e4b0941bde56eb62?facet=Isopachs_PuntaGordaToPointArena.zip

Network_Resource_Name: https://doi.org/10.5066/P9PNNI9H
Network_Resource_Name: https://pubs.usgs.gov/ds/781/

Access_Instructions:

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.

Fees: None.

Technical_Prerequisites:

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, PuntaGordaToPointArenaGIS.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 "Punta Gorda to Point Arena" map region 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.

Metadata_Reference_Information:

Metadata_Date: 20201019
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Contact_Person: PCMSC Science Data Coordinator

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/SeriesReports/DS_DDS/DS_781/XMLs_on_ScienceBase/P9PNNI9H_PuntaGordaToPtArena/Isopachs_PuntaGordaToPointArena_metadata.html>