Vectorized Shoreline of Southern California Derived from 1971-1976 Source Data

Metadata also available as - [Questions & Answers] - [XML]

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Cheryl Hapke
Originator: David Reid
Publication_Date: Unknown
Title:
Vectorized Shoreline of Southern California Derived from 1971-1976 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 Coast
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2006-1219
Publication_Information:
Publication_Place: U.S. Geological Survey, Pacific Science Center, Santa Cruz
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: 1971
Ending_Date: 1976
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -120.001447
East_Bounding_Coordinate: -117.123480
North_Bounding_Coordinate: 34.495182
South_Bounding_Coordinate: 32.500071
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_Person_Primary:
Contact_Person: Bruce Richmond
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., Eastern 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 10.1 meters. Please visit our full report on shoreline change in the Coastline of California (<http://pubs.usgs.gov/of/2006/1219/>), under the heading 'Uncertainties and Errors', for a complete explanation of the measurement error.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
U.S. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), National Environmental Satellite, Data, and Information Service (NESDIS), and National Ocean Service (NOS)
Publication_Date: Unknown
Title:
Socal1971_1976, Vector Shorelines from Georeferenced Scanned Coastal Maps
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Historic Shoreline Database
Issue_Identification: 1970s Shoreline
Publication_Information:
Publication_Place: Silver Spring, Maryland
Publisher:
U.S. Department of Commerce, National Oceanic and Atmospheric Administration
Other_Citation_Details:
Senior cartographer, Address 1315 East-West Highway City Silver Spring State: Maryland Postal_Code 20910-3282 Country USA Contact_Voice_Telephone (301) 713-3226 Contact_Facsimile_Telephone (301) 713-4176 Contact_Electronic_Mail_Address info_center@ngs.noaa.gov
Online_Linkage: <http://www.csc.noaa.gov/shoreline/>
Online_Linkage: <http://mapfinder.nos.noaa.gov>
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: 1971
Ending_Date: 1976
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: NOS T-Sheets
Source_Contribution: NOAA NOS Topographic Sheets (t-sheet or tp-sheet maps)
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_Person_Primary:
Contact_Person: Bruce Richmond
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
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: 531
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
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
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000512
Ordinate_Resolution: 0.000512
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: Socal1971_1976
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: 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:
Enumerated_Domain:
Enumerated_Domain_Value: NOAA NOS T-Sheets
Enumerated_Domain_Value_Definition: NOAA
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: ACCURACY
Attribute_Definition: Position accuracy of feature.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute_Units_of_Measure: meters
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: 19710101
Ending_Date_of_Attribute_Values: 19760101
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., Eastern 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_Date: 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: 0.368
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: USGS Pacifc Science Center
Fees: None
Metadata_Reference_Information:
Metadata_Date: 20060826
Metadata_Contact:
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., 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
Generated by mp version 2.9.1 on Sat Aug 26 11:54:51 2006