Vectorized Shoreline of Northern California from 1854-1880 Source Data

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: Cheryl Hapke

Originator: David Reid

Publication_Date: Unknown

Title:

Vectorized Shoreline of Northern California from 1854-1880 Source Data

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2006-1251

Publication_Information:

Publication_Place:

U.S. Geological Survey, Pacific Science Center, Santa Cruz, California

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: <http://pubs.usgs.gov/of/2006/1251>

Larger_Work_Citation:

Citation_Information:

Originator: Cheryl Hapke

Originator: David Reid

Originator: Bruce Richmond

Originator: Peter Ruggiero

Originator: Jeff List

Publication_Date: Unknown

Title:

National Assessment of Shoreline Change: Part 3, Historical Shoreline Changes and Associated Coastal Land Loss Along the Sandy Shorelines of California

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2006-1219

Publication_Information:

Publication_Place: U.S. Geological Survey, Pacific Science Center, Santa Cruz Ca

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: <http://pubs.usgs.gov/of/2006/1219>

Description:

Abstract:

There are critical needs for a nationwide compilation of reliable shoreline data. To meet these needs, the USGS has produced a comprehensive database of digital vector shorelines by compiling shoreline positions from pre-existing historical shoreline databases and by generating historical and modern shoreline data. Shorelines are compiled by state and generally correspond to one of four time periods: 1800s, 1920s-1930s, 1970s, and 1998-2002. Each shoreline may represent a compilation of data from one or more sources for one or more dates provided by one or more agencies. Details regarding source are provided in the 'Data Quality Information' section of this metadata report. Shoreline vectors derived from historic sources (first three time periods) represent the high water line at the time of the survey, whereas modern shorelines (final time period) represent the mean high water line.

Purpose:

Historical shoreline change is considered to be a crucial element in studying the vulnerability of the national shoreline. These data are used in a shoreline change analysis for the USGS National Assessment Project.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1854

Ending_Date: 1880

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -124.431019

East_Bounding_Coordinate: -122.963263

North_Bounding_Coordinate: 41.996983

South_Bounding_Coordinate: 38.221988

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

Theme_Keyword: Shoreline

Theme_Keyword: Historic Shoreline

Theme_Keyword: Shoreline Change Rate

Theme_Keyword: Linear Regression Rate

Theme_Keyword: Endpoint Rate

Theme_Keyword: Baseline

Theme_Keyword: Beach Erosion

Theme_Keyword: Beach Nourishment

Theme_Keyword: LIDAR

Theme_Keyword: T-sheet

Theme_Keyword: Tp-sheet

Theme_Keyword: Coastal Survey Map

Place:

Place_Keyword_Thesaurus: General

Place_Keyword: United States

Place_Keyword: California

Access_Constraints: None

Use_Constraints:

This data set is not to be used for navigational purposes.
Public domain data from the U.S. government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Pacific Science Center

Contact_Person: Bruce Richmond

Contact_Address:

Address_Type: mailing and physical address

Address: 400 Natural Bridges Drive

City: Santa Cruz

State_or_Province: Ca

Postal_Code: 95060

Country: USA

Contact_Voice_Telephone: (831)-427-4450

Contact_Facsimile_Telephone: (831)-427-4748

Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Pacific Standard Time

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535

Data_Quality_Information:

Logical_Consistency_Report:

There is significant agreement of linework between adjacent shorelines. Shorelines were checked for accuracy, but no edgematching attempts were made between adjacent shorelines even if slight offsets existed.

Completeness_Report:

This shoreline data adequately represented the shoreline at the time of the survey. Remaining gaps in this data, if applicable, are a consequence of non-existing data or existing data that did not meet quality assurance standards.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The maximum estimated positional error for this shoreline is 11m. Please visit our full report on shoreline change in the Gulf of Mexico (<http://pubs.usgs.gov/of/2004/1043/ofr-2004-1043.pdf>), under the heading 'Reliability of the Results', for a complete explanation of the measurement error.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Cheryl Hapke

Originator: David Reid

Publication_Date: Unknown

Title:

THE NATIONAL ASSESSMENT OF SHORELINE CHANGE: A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the Sandy Shorelines of the California Coast.

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: Open File Report

Issue_Identification: 2006-1251

Publication_Information:

Publication_Place: USGS Pacific Science Center, Santa Cruz, California

Publisher: USGS Coastal and Marine Geology

Online_Linkage: <http://pubs.usgs.gov/of/2006/1251>

Larger_Work_Citation:

Citation_Information:

Originator: Cheryl Hapke

Originator: David Reid

Originator: Bruce Richmond

Originator: Peter Ruggiero

Originator: Jeff List

Publication_Date: Unknown

Title:

National Assessment of Shoreline Change: Part 3, Historical Shoreline Changes and Associated Coastal Land Loss Along the Sandy Shorelines of California Coast

Series_Information:

Series_Name: Open File Report

Issue_Identification: 2006-1219

Publication_Information:

Publication_Place: USGS Pacific Science Center, Santa Cruz, California

Publisher: USGS Coastal and Marine Geology

Online_Linkage: <http://pubs.usgs.gov/of/2006/1219>

Type_of_Source_Media: Vector Shorelines

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1854

Ending_Date: 1880

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: NOS T-Sheets

Source_Contribution: NOAA-NOS Topographic Sheets

Process_Step:

Process_Description:

Shorelines from one or more sources were sought in an effort to develop a single shoreline for each time period. Digital shorelines, if available from another agency, were acquired. If no digital shorelines were available or if a data set was incomplete, T-sheets were requested from NOAA and received as scanned raster images. T-sheets were geo-registered using ERDAS Imagine geographic imaging software by placing 6-10 well-spaced ground control points at gridline intersections. Some T-sheets may have required additional coordinate transformation information from NOAA to account for datum offsets between historical datums (USSD) and modern datums (NAD27 or NAD83). Datum transformations were applied to GCP coordinates prior to registration. Total RMS error for the rectification process was maintained below 1 pixel, which translates to approximately 4m at a scale of 1:20,000 and 1.5m at a scale of 1:10,000. Geo-registered T-sheets were loaded in ArcView and vector shorelines were digitized.
Quality assessments were performed and shorelines were edited to remove any overlap between adjacent shorelines. No edgematching between adjacent shorelines was attempted. Finally, shorelines from all sources were merged to produce a single shoreline for the period. The final shoreline was coded with 6 attribute fields (ID, Type, Date, Descr, Source, and Accuracy) required for the Digital Shoreline Analysis System (DSAS), which was used to calculate shoreline change rates. The attributes reflect the source of the data and the original survey year.

Process_Date: Unknown

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Pacific Science Center

Contact_Person: Bruce Richmond

Contact_Address:

Address_Type: mailing and physical address

Address: 400 Natural Bridges Drive

City: Santa Cruz

State_or_Province: Ca

Postal_Code: 95060

Country: USA

Contact_Voice_Telephone: (831)-427-4450

Contact_Facsimile_Telephone: (831)-427-4748

Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Pacific Standard Time

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: 49

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: 0.999600

Longitude_of_Central_Meridian: -123.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.001024

Ordinate_Resolution: 0.001024

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1927

Ellipsoid_Name: Clarke 1866

Semi-major_Axis: 6378206.400000

Denominator_of_Flattening_Ratio: 294.978698

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: NorCal1854_1880

Entity_Type_Definition: Vector Shoreline from NOS T-Sheets

Entity_Type_Definition_Source: USGS

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: ID

Attribute_Definition: Feature number.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 40677

Attribute:

Attribute_Label: ACCURACY

Attribute_Definition: Position accuracy of feature.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0

Enumerated_Domain_Value_Definition: The accuracy is not given or is not known.

Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: TYPE

Attribute_Definition: Type of feature.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Shoreline

Enumerated_Domain_Value_Definition: Vector shoreline.

Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: DESCR

Attribute_Definition: Detailed description of the feature.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Unrepresentable_Domain: Describes additional characteristics of the feature.

Attribute:

Attribute_Label: SOURCE

Attribute_Definition: Agency that provided feature or data used to create feature.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Unrepresentable_Domain: Describes additional characteristics of the feature.

Attribute:

Attribute_Label: DATE_

Attribute_Definition: Date of Shoreline Segment

Attribute_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Dates

Enumerated_Domain_Value_Definition: NOS T-Sheet Dates

Enumerated_Domain_Value_Definition_Source: NOAA NOS T-Sheets

Beginning_Date_of_Attribute_Values: 18540101

Ending_Date_of_Attribute_Values: 18800101

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Pacific Science Center

Contact_Address:

Address_Type: mailing and physical address

Address: 400 Natural Bridges Drive

City: Santa Cruz

State_or_Province: Ca

Postal_Code: 95060

Country: USA

Contact_Voice_Telephone: (831) 427-4450

Contact_Facsimile_Telephone: (831) 427-4748

Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Pacific Standard Time

Resource_Description: USGS Open-File Report 2006-1219

Distribution_Liability:

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: ESRI Shapefile

Format_Version_Number: 20060901

Format_Specification:

Seven files comprise the ArcView shapefile: <filename>.dbf, <filename>.shp, <filename>.shx, <filename>.prj, <filename>.avl, <filename>.sbx, <filename>.sbn

File_Decompression_Technique: no compression applied

Transfer_Size: 1.728

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: USGS Pacific Science Center

Fees: none

Metadata_Reference_Information:

Metadata_Date: 20060826

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey, Center for Coastal and Watershed Studies

Contact_Address:

Address_Type: mailing and physical address

Address: 400 Natural Bridges Drive

City: Santa Cruz

State_or_Province: Ca

Postal_Code: 95060

Country: USA

Contact_Voice_Telephone: (727) 803-8747

Contact_Facsimile_Telephone: (727) 803-2032

Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Eastern Standard Time

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile