PAC_EXT - Extracted seabed data for the continental margin of the U.S. Pacific Coast (California, Oregon, Washington) from usSEABED (pac_ext.txt)

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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: Jane A. Reid
Originator: Jamey M. Reid
Originator: Chris J. Jenkins
Originator: Mark Zimmermann
Originator: S. Jeffress Williams
Originator: Michael E. Field
Publication_Date: 2006
Title:

PAC_EXT - Extracted seabed data for the continental margin of the U.S. Pacific Coast (California, Oregon, Washington) from usSEABED (pac_ext.txt)

Edition: 1.0
Geospatial_Data_Presentation_Form: comma-delimited text and vector digital data
Series_Information:

Series_Name: Data Series
Issue_Identification: 182

Publication_Information:

Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: https://pubs.usgs.gov/ds/2006/182/data/pac_ext.zip
Online_Linkage: https://pubs.usgs.gov/ds/2006/182/data_cata.html
Online_Linkage: https://doi.org/10.3133/ds182
Larger_Work_Citation:

Citation_Information:

Originator: Jane A. Reid
Originator: Jamey M. Reid
Originator: Chris J. Jenkins
Originator: Mark Zimmermann
Originator: S. Jeffress Williams
Originator: Michael E. Field
Publication_Date: 2006
Title:

usSEABED: Pacific Coast Offshore Surficial-Sediment Data Release

Edition: 1.0
Series_Information:

Series_Name: Data Series
Issue_Identification: 182

Publication_Information:

Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: https://doi.org/10.3133/ds182
Online_Linkage: https://pubs.usgs.gov/ds/2006/182/index.html

Description:

Abstract:

This data layer (PAC_EXT.txt) is one of five point coverages of known sediment samples, inspections, and probes from the usSEABED data collection for the U.S. Pacific continental margin integrated using the software system dbSEABED. This data layer represents the extracted (EXT) output of the dbSEABED mining software and contains data items which were extracted from the data resources files and generally represent lab-based analytical data. The EXT data are usually considered the most rigorous data available, although some data may represent a subsample of the sediment (that is, large shells or stones may have been excluded from the analysis). This file contains the same data fields as the parsed (PAC_PRS) and calculated (PAC_CLC) data files, and the three files may be combined.

Purpose:

To build a digital mapping of the character of the seabed on regional, national and global scales. 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.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2006

Currentness_Reference: publication date

Status:

Progress: In work
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -128.66600
East_Bounding_Coordinate: -117.10170
North_Bounding_Coordinate: 48.99883
South_Bounding_Coordinate: 30.57000

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:7c63fbc1-83e3-4fac-a2dc-0d33b0d9190f

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Oceans
Theme_Keyword: Location
Theme_Keyword: GeoscientificInformation

Theme:

Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD)
Theme_Keyword: Marine Sediments
Theme_Keyword: Biogenic Sediments
Theme_Keyword: Sediment Chemistry
Theme_Keyword: Sediment Composition
Theme_Keyword: Sediment Textures
Theme_Keyword: Stratigraphic Sequence
Theme_Keyword: Terrigenous Sediments

Theme:

Theme_Keyword_Thesaurus: Coastal and Marine Ecological Classification Standard (CMECS)
Theme_Keyword: Marine Nearshore
Theme_Keyword: Marine Offshore
Theme_Keyword: Estuarine Coastal
Theme_Keyword: Borderland
Theme_Keyword: Continental/Island Shelf
Theme_Keyword: Continental/Island Slope
Theme_Keyword: Rock Substrate
Theme_Keyword: Unconsolidated Mineral Substrate

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: distributions
Theme_Keyword: sand resources
Theme_Keyword: substrate

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: seabed
Theme_Keyword: sediment resources
Theme_Keyword: sand deposit

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: sea-floor characteristics
Theme_Keyword: nonmetallic mineral resources
Theme_Keyword: gravel deposits
Theme_Keyword: sand deposits
Theme_Keyword: geology
Theme_Keyword: unconsolidated deposits

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: Seabed
Theme_Keyword: Sea floor
Theme_Keyword: Sediment
Theme_Keyword: Components
Theme_Keyword: Features
Theme_Keyword: Genesis
Theme_Keyword: Descriptions
Theme_Keyword: Analyses
Theme_Keyword: usSEABED
Theme_Keyword: dbSEABED
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Pacific Coastal and Marine Science Center
Theme_Keyword: PCMSC
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: WHSC
Theme_Keyword: Benthic Habitats (Pacific) Project
Theme_Keyword: Marine Aggregates Resources and Processes Project
Theme_Keyword: University of Colorado
Theme_Keyword: UC
Theme_Keyword: Institute of Arctic and Alpine Research
Theme_Keyword: INSTAAR
Theme_Keyword: National Oceanic and Atmospheric Administration
Theme_Keyword: NOAA
Theme_Keyword: National Marine Fisheries Service
Theme_Keyword: NMFS

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: United States of America
Place_Keyword: Pacific Ocean
Place_Keyword: State of California
Place_Keyword: State of Oregon
Place_Keyword: State of Washington
Place_Keyword: Puget Sound
Place_Keyword: Willapa Bay
Place_Keyword: Grays Harbor
Place_Keyword: San Francisco Bay
Place_Keyword: Monterey Bay
Place_Keyword: Santa Monica Bay
Place_Keyword: San Pedro Bay

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Pacific coast
Place_Keyword: West Coast

Place:

Place_Keyword_Thesaurus: Coastal and Marine Ecological Classification Standard (CMECS)
Place_Keyword: Oregon, Washington, Vancouver Coast and Shelf Ecoregion
Place_Keyword: Northern California Ecoregion
Place_Keyword: Southern California Bight Ecoregion

Stratum:

Stratum_Keyword_Thesaurus: Coastal and Marine Ecological Classification Standard (CMECS)
Stratum_Keyword: Substrate

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(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane A. Reid
Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist
Contact_Address:

Address_Type: mailing and physical address
Address: Pacific Coastal and Marine Science Center
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA

Contact_Voice_Telephone: 831-427-4727
Contact_Electronic_Mail_Address: jareid@usgs.gov
Contact_Instructions: email preferred

Browse_Graphic:

Browse_Graphic_File_Name: https://pubs.usgs.gov/ds/2006/182/data/pac_ext.jpg
Browse_Graphic_File_Description: Image map showing extent of data layer coverage
Browse_Graphic_File_Type: JPEG

Data_Set_Credit:

We thank the contributors of the data and the following interns for their assistance in data entry, coding, and testing, and (or) assistance with source metadata: K. Halimeda Kilbourne, Carolynn Box, Tara Kneeshaw, Jennifer Mendonca, April Villagomez, Monica Iglecia, and Adam Jackson.

Native_Data_Set_Environment:

Tkme: Another editor for formal metadata by Peter N. Schweitzer (U.S. Geological Survey, Reston, VA 22092), version 2.9.13, Microsoft Windows Version 5.1; Microsoft Word 2000 9.0

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Accuracy of each attribute is dependent on the accuracy of the lineage data.

Logical_Consistency_Report:

Data in the usSEABED data collection are based on the observations and analyses of others, filtered through a unifying and mining software. Each source report varies in type of information/data recorded and format. Only those observations that are recorded can be filtered and mined; only presence (not absences) of information can be noted.

Completeness_Report:

Additional useable data may exist in this area; the authors appreciate any information and leads.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Locational accuracy is dependent on the accuracy of the navigational technique from the individual data sources and may vary widely (e.g., from 0.005km (differential GPS) in more recent surveys to greater than 2 km based on radar, Loran, or dead reckoning in older surveys.) Users of the data should use their own criteria for assessing the accuracy of the locations.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Locational accuracy is dependent on the accuracy of the navigational technique from the individual data sources. Users of the data should use their own criteria for assessing the accuracy of the locations.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Various
Publication_Date: Unknown
Title:

See Data Sources page (https://pubs.usgs.gov/ds/2006/182/pac_sources.html and links therein, or the relationally linked file https://pubs.usgs.gov/ds/2006/182/data/pac_src.txt (PAC_SRC.txt), and links therein, within the data publication (see https://pubs.usgs.gov/ds/2006/182/index.html) for the specific sources and associated metadata.

Geospatial_Data_Presentation_Form: Hard copy documents and digital files
Publication_Information:

Publication_Place: Various publication places
Publisher: Various publishers/originators

Other_Citation_Details:

Over 300 sources, both published and unpublished, are used as the sources of information for usSEABED. Metadata for each source is given through the Data Sources page (https://pubs.usgs.gov/ds/2006/182/pac_sources.html) and relationally linked to the data through the file https://pubs.usgs.gov/ds/2006/182/data/pac_src.txt (PAC_SRC.txt). Sources include the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), Minerals Management Service (MMS), National Oceanic and Atmospheric Administration (NOAA), the University of Washington, Seattle, Oregon State University, Corvallis, Universities of California, Berkeley, Los Angeles, and San Diego, University of Southern California, San Jose and Humboldt State Universities, Naval Postgraduate School, Virginia Institute of Marine Science (VIMS) and other educational institutions, the Maryland and New Jersey State Geological Surveys (MGS, NJGS), U.S. Navy, Southern California Coastal Water Research Project (SCCWRP), other local and regional consortia and authorities, NOAA's National Geophysical Data Center (NGDC), the Smithsonian Institution, and others.

Type_of_Source_Media: Hard copy and digital
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1840
Ending_Date: 2003

Source_Currentness_Reference: Source publication date or date of collection

Source_Citation_Abbreviation: Varies with source
Source_Contribution:

Point locations, descriptions, and various analytical data (textural, granulometric, geochemical, geophysical, acoustic) on sediments, rock exposure, and benthos. Contributions vary with source.

Process_Step:

Process_Description:

Source data may be digitized as necessary (typed or scanned in), with a visual inspection of digitized data to the source report and corrections as necessary, and are tested for completeness in Microsoft Excel as appropriate. Other digital data may be decoded using source-specific programs, downloaded via the web, or sent directly to the USGS or University of Colorado via email. Data are formatted into the dbSEABED Data Entry template (db9_DataEntry.xls, version 05/27/05) by hand, and tested using the dbSEABED relational database program (RDBi, version 01/05/2005) for correctness of formatting. For consistency, simple unit changes may be done. Data are compiled into source data resource files (DRF) and were processed through the dbSEABED data mining program (MNEv, version 12/18/2005) program, using the dbSEABED thesaurus (db9_dict.rtf, version 10/29/2005) and component set up file for U.S. waters (SET_ABUN.txt, version 07/20/2005). Data are iteratively reprocessed and corrected until noted errors are fixed, as recorded by the _RBDS.2fx and _MNE.DGN files. Data are exercised in a GIS for location tests and useability.

Process_Date: 20051222
Source_Produced_Citation_Abbreviation: PAC_EXT.txt
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Jane A. Reid

Contact_Position: Geologist
Contact_Address:

Address_Type: Mail and Physical
Address: USGS Pacific Coastal and Marine Science Center
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA

Contact_Voice_Telephone: 831.427.4727
Contact_Electronic_Mail_Address: jareid@usgs.gov
Contact_Instructions: Email preferred

Process_Step:

Process_Description:

Keywords added to metadata support discovery in the USGS Coastal and Marine Geology Data Catalog.

Process_Date: 20180426
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Alan O. Allwardt

Contact_Position: Contractor -- Information Specialist
Contact_Address:

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

Contact_Voice_Telephone: 831-460-7551
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aallwardt@usgs.gov

Process_Step:

Process_Description:

Edits were made to bring the metadata up to current PCMSC standards including adding a doi# link, correcting typos, refining keywords, and using current access and distribution liability statements. Point of Contact and Metadata Contact information sections were changed to static PCMSC contact information. Users are advised to compare the metadata date of this file to any similar file to ensure they are using the most recent version.

Process_Date: 20191204
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Susan A Cochran
Contact_Organization:

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

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission St.
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: United States

Contact_Voice_Telephone: 831-460-7545
Contact_Electronic_Mail_Address: scochran@usgs.gov

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

Process_Step:

Process_Description:

Edits were made to correct spelling in author name. No data were changed. The metadata available from a harvester may supersede metadata bundled within a download file. Users are advised to compare the metadata date of this file to any similar file to ensure they are using the most recent version. (scochran@usgs.gov)

Process_Date: 20230516

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 16486

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00001
Longitude_Resolution: 0.00001
Geographic_Coordinate_Units: decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: pac_ext
Entity_Type_Definition: Shapefile Attribute Table
Entity_Type_Definition_Source: ESRI

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: LATITUDE
Attribute_Definition: Latitude coordinate of sample location
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Location information in decimal degrees

Attribute:

Attribute_Label: LONGITUDE
Attribute_Definition: Longitude coordinate of sample location
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Location information in decimal degrees

Attribute:

Attribute_Label: WATERDEPTH
Attribute_Definition: Water depth of sample
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Water depth of sample in meters

Attribute:

Attribute_Label: SAMPLETOP
Attribute_Definition:

Measured subbottom depth information for each point sample or subsample (top)

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Subsample location information in meters

Attribute:

Attribute_Label: SAMPLEBASE
Attribute_Definition:

Measured subbottom depth information for each point sample or subsample (bottom)

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Subsample location information in meters

Attribute:

Attribute_Label: SITENAME
Attribute_Definition: Survey or laboratory code for site (non-unique)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Character string

Attribute:

Attribute_Label: DATASETKEY
Attribute_Definition: Data set key (relational link)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Unique sequential numeric key to SRC file

Attribute:

Attribute_Label: SITEKEY
Attribute_Definition: Site key (relational link)
Attribute_Definition_Source: dbSEABED MNEv program
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique sequential numeric key to information about the same site in other usSEABED data files

Attribute:

Attribute_Label: SAMPLEKEY
Attribute_Definition: Sample key (relational link)
Attribute_Definition_Source: dbSEABED MNEv program
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique sequential numeric key to information about the same sample or subsample in other usSEABED data files

Attribute:

Attribute_Label: SAMPLER
Attribute_Definition: Equipment used to collect samples
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain:

Character string containing name of device used to acquire sample

Attribute:

Attribute_Label: DATATYPES
Attribute_Definition:

Type of data that were used to derive values held in characterization

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: ACU
Enumerated_Domain_Value_Definition: Acoustic Properties
Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: CMP
Enumerated_Domain_Value_Definition: Sediment Composition
Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: COL
Enumerated_Domain_Value_Definition: Color
Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: GTC
Enumerated_Domain_Value_Definition: Geotechnical Properties
Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: GRZ
Enumerated_Domain_Value_Definition: Grain Size
Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: TXR
Enumerated_Domain_Value_Definition: Texture
Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: TXG
Enumerated_Domain_Value_Definition: Texture (Graphic)
Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: LTH
Enumerated_Domain_Value_Definition: Lithology
Enumerated_Domain_Value_Definition_Source: dbSEABED Data Entry Template

Attribute:

Attribute_Label: GRAVEL
Attribute_Definition: Gravel grainsize fraction
Attribute_Definition_Source: Defined by original source
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: SAND
Attribute_Definition: Sand grainsize fraction
Attribute_Definition_Source: Defined by original source
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: MUD
Attribute_Definition: Mud grainsize fraction
Attribute_Definition_Source: Defined by original source
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: CLAY
Attribute_Definition: Clay grainsize fraction
Attribute_Definition_Source: Defined by original source
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: GRAINSIZE
Attribute_Definition:

Phi characteristic grainsize (moment mean or median) see Larger_Work_Citation

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -12
Range_Domain_Maximum: 12
Attribute_Units_of_Measure: Phi
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: SORTING
Attribute_Definition:

Phi grainsize dispersion; Moment measure standard deviation sorting only

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 6
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: SEABEDCLS
Attribute_Definition:

Seabed class; (Facies) with the maximum fuzzy-membership value > 30%; see pac_fac.txt file

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Alpha characters

Attribute:

Attribute_Label: CLSMSHP
Attribute_Definition: Class membership; fuzzy membership (%) of above Class (Facies)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 30
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Fuzzy membership
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: FOLKCODE
Attribute_Definition: Grainsize classification
Attribute_Definition_Source: Folk, Andrews, and Lewis, 1970
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: (g)M
Enumerated_Domain_Value_Definition: Slightly gravelly mud
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: (g)mS
Enumerated_Domain_Value_Definition: Slightly gravelly muddy sand
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: (g)sM
Enumerated_Domain_Value_Definition: Slightly gravelly sandy mud
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: (g)S
Enumerated_Domain_Value_Definition: Slightly gravelly sand
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: G
Enumerated_Domain_Value_Definition: Gravel
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: gM
Enumerated_Domain_Value_Definition: Gravelly mud
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: gmS
Enumerated_Domain_Value_Definition: Gravelly muddy sand
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: gS
Enumerated_Domain_Value_Definition: Gravelly sand
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition: Mud
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: mG
Enumerated_Domain_Value_Definition: Muddy gravel
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: mS
Enumerated_Domain_Value_Definition: Muddy sand
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: msG
Enumerated_Domain_Value_Definition: Muddy sandy gravel
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: S
Enumerated_Domain_Value_Definition: Sand
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sG
Enumerated_Domain_Value_Definition: Sandy gravel
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sM
Enumerated_Domain_Value_Definition: Sandy mud
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition: Hard ground
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute:

Attribute_Label: SHEPARDCOD
Attribute_Definition: modified Shepard code; grain size classification
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: CLAYEY SILT
Enumerated_Domain_Value_Definition:

Sediment that is mostly silt with clay as the next most common component

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SANDY SILT
Enumerated_Domain_Value_Definition:

Sediment that is mostly silt with sand as the next most common component

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SAND SILT CLAY
Enumerated_Domain_Value_Definition: Sediment with significant sand, silt, and clay
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SILTY CLAY
Enumerated_Domain_Value_Definition:

Sediment that is mostly clay with silt as the next most common component

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SAND
Enumerated_Domain_Value_Definition:

Sediment with greater than 80 percent in the 62 micron to 2 mm fraction

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SILTY SAND
Enumerated_Domain_Value_Definition:

Sediment that is mostly sand with silt (greater than 20 percent) as the next most common component

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SEDIMENT
Enumerated_Domain_Value_Definition: Relative primary textural class
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: CLAYEY SAND
Enumerated_Domain_Value_Definition: Relative primary textural class
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: CLAY
Enumerated_Domain_Value_Definition: Relative primary textural class
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SANDY CLAY
Enumerated_Domain_Value_Definition: Relative primary textural class
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SILT
Enumerated_Domain_Value_Definition: Relative primary textural class
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: GRAVELLY SEDIMENT
Enumerated_Domain_Value_Definition:

Sediment with greater than 10 percent gravel, but less than 50 percent

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: GRAVEL
Enumerated_Domain_Value_Definition: Sediment with nominal diameter coarser than 2mm
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SEDIMENT
Enumerated_Domain_Value_Definition: Relative primary textural class
Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: ROCKMSHP
Attribute_Definition:

Rock membership; fuzzy membership (%) reflecting percent exposure of rock

Attribute_Definition_Source: dbSEABED processing software
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: -99
Enumerated_Domain_Value_Definition: No data
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute:

Attribute_Label: WEEDMSHP
Attribute_Definition:

Weed membership; fuzzy membership reflecting abundance of seaweed and seagrass

Attribute_Definition_Source: dbSEABED processing software MNEv and thesaurus
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: -99
Enumerated_Domain_Value_Definition: No data
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute:

Attribute_Label: CARBONATE
Attribute_Definition: Carbonate, including finest to coarsest sampled fractions
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: MUNSLCODE
Attribute_Definition: Munsell color code
Attribute_Definition_Source: GSA Rock-Color Chart, 1991
Attribute_Domain_Values:

Unrepresentable_Domain: Non-unique code based on HVC (Hue, Value, Chroma)

Attribute:

Attribute_Label: ORGCARBON
Attribute_Definition: Organic carbon in the sample
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: LGSHEARSTR
Attribute_Definition: Undrained compressive shear strength, Log10 of KiloPascals
Attribute_Definition_Source: Defined by original source
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: -99
Enumerated_Domain_Value_Definition: No data
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute:

Attribute_Label: ROUGHNESS
Attribute_Definition:

A coded output representing the V:H of the roughness element with greatest aspect ratio

Attribute_Definition_Source: dbSEABED processing software MNEv and thesaurus
Attribute_Domain_Values:

Unrepresentable_Domain: Values expressed as (rounded) integer log2 of V and H in cm

Attribute:

Attribute_Label: POROSITY
Attribute_Definition: Void volume
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: Unknown
Attribute_Units_of_Measure: kPa
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: PWAVEVEL
Attribute_Definition: Compressional wave velocity
Attribute_Definition_Source: dbSEABED processing software MNEv and thesaurus
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: -99
Enumerated_Domain_Value_Definition: No data
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute:

Attribute_Label: LGCRSHST
Attribute_Definition:

Log Critical Shear Stress, Log10 of Tau in kPa, being the Shear Stress required to initiate easily observable erosion and transport, whether by traction or suspension

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: -99
Enumerated_Domain_Value_Definition: No data
Enumerated_Domain_Value_Definition_Source: dbSEABED software, version MNEv

Attribute:

Attribute_Label: SAMPLEPHAS
Attribute_Definition:

Sample Phase; records whether the results are for the whole, bulk sediment or just to some special part

Attribute_Definition_Source: dbSEABED processing software
Attribute_Domain_Values:

Unrepresentable_Domain:

Character string output as a word-based description that may involve numerics. This field will need to be selected against when GIS mappings of the bulk sedient characters are being mapped. Only blank entries should be included in such a mapping.

Overview_Description:

Entity_and_Attribute_Overview:

Values of -99 for any field are indications that there was no data available.

Entity_and_Attribute_Detail_Citation: See dbSEABED page in Larger_Work_Citation

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Jane A. Reid

Contact_Position: Geologist
Contact_Address:

Address_Type: Mailing and physical address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA

Contact_Voice_Telephone: 831.427.4727
Contact_Electronic_Mail_Address: jareid@usgs.gov
Contact_Instructions: Email preferred

Resource_Description:

Downloadable Data: USGS Data Series 182 (downloadable through the web).

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: comma-delimited text
Format_Version_Date: 2005
Format_Information_Content:

Text file containing data input to usSEABED. Fields are comma separated values. First record of file contains field names.

File_Decompression_Technique: no compression applied
Transfer_Size: 13.3

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: https://pubs.usgs.gov/ds/2006/182/data/pac_ext.txt
Network_Resource_Name: https://pubs.usgs.gov/ds/2006/182/data_cata.html
Network_Resource_Name: https://doi.org/10.3133/ds182

Access_Instructions:

Data can be downloaded using the Network_Resource_Name links. The first link begins a direct download of the comma-delimited text file. The second link points to a data catalog page containing all of the data for the project. The third link points to a landing page for the entire data series.

Digital_Form:

Digital_Transfer_Information:

Format_Name: shapefile
Format_Version_Number: 2005
Format_Specification: ESRI point shapefile
Format_Information_Content:

The SHP file contains the geospatial data. The SHX file contains the index of the geospatial data. The DBF file contains the attribute data in dBASE format. The PRJ file contains the coordinate system information (optional). The AVL file contains the legend information (optional). The SBN and SBX files contain the spatial index of the geospatial data (optional).

File_Decompression_Technique: winzip

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: https://pubs.usgs.gov/ds/2006/182/data/pac_ext.zip
Network_Resource_Name: https://pubs.usgs.gov/ds/2006/182/data_cata.html
Network_Resource_Name: https://doi.org/10.3133/ds182

Access_Instructions:

Data can be downloaded using the Network_Resource_Name links. The first link begins a direct download of the accompanying shapefile. The second link points to a data catalog page containing all of the data for the project. The third link points to a landing page for the entire data series.

Fees: None

Technical_Prerequisites:

None; these data are provided as comma-delimited text files useable in most softwares. Additionally, these data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at https://www.esri.com.

Metadata_Reference_Information:

Metadata_Date: 20230516
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: 95060-5792
Country: US

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_182/pac_ext.html>