norcal_intersects.shp - Transect-Cliff Edge Intersection Points for Northern California Generated to Calculate Cliff Erosion Rates

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Cheryl Hapke
Originator: David Reid
Publication_Date: 2007
Title:
norcal_intersects.shp - Transect-Cliff Edge Intersection Points for Northern California Generated to Calculate Cliff Erosion Rates
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2007-1112
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/2007/1112/NCal.zip
Online_Linkage: http://pubs.usgs.gov/of/2007/1112/
Larger_Work_Citation:
Citation_Information:
Originator: Cheryl Hapke
Originator: David Reid
Originator: Krystal Green
Originator: Mark Borrelli
Publication_Date: 2007
Title:
National Assessment of Shoreline Change: Part 4: A GIS Compilation of Vector cliff edges and associated change data for the cliffed shorelines of the California Coast
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2007-1112
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/2007/1112/
Description:
Abstract:
Rates of cliff erosion were generated in a GIS using the Digital Shoreline Analysis System (DSAS) version 3.0; An ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304, Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.M. The extension is designed to efficiently lead a user through the major steps of shoreline change analysis. This extension to ArcGIS contains three main components that define a baseline, generate orthogonal transects at a user-defined separation along the coast, and calculate rates of change (linear regression, endpoint rate, average of rates, average of endpoints, jackknife).
Purpose:
Historical cliff erosion is considered to be a crucial element in studying the vulnerability of the national coastline.  These data are used in a cliff erosion analysis for the USGS National Assessment Project.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005
Currentness_Reference:
publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.441934
East_Bounding_Coordinate: -122.964338
North_Bounding_Coordinate: 42.004173
South_Bounding_Coordinate: 38.224643
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: Cliff Edge
Theme_Keyword: Historic Cliff Edge
Theme_Keyword: Cliff Erosion Rate
Theme_Keyword: Endpoint Rate
Theme_Keyword: Baseline
Theme_Keyword: Cliff Erosion
Theme_Keyword: LIDAR
Theme_Keyword: T-sheet
Theme_Keyword: Tp-sheet
Theme_Keyword: Coastal Survey Map
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: ESRI polyline shapefile
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans and estuaries
Theme_Keyword: oceans and coastal
Place:
Place_Keyword_Thesaurus: Geographic Names Information System, USGS, Reston, VA
Place_Keyword: United States
Place_Keyword: California
Access_Constraints: None
Use_Constraints:
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: Cheryl Hapke
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address:
USGS Patuxent Wildlife Research Center
Address:
University of Rhode Island
Address:
317 Woodward Hall, Dept. of Geosciences
City: Kingston
State_or_Province: RI
Postal_Code: 02881
Country: USA
Contact_Voice_Telephone: 401-874-5532
Contact_Facsimile_Telephone: 401-874-2190
Contact_Electronic_Mail_Address: chapke@usgs.gov
Hours_of_Service: Monday through Friday, 9 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 9.1.0.722
Cross_Reference:
Citation_Information:
Originator: Cheryl Hapke
Originator: David Reid
Publication_Date: 2007
Title:
The National Asessment of Shoreline Change, Part 4: Historical Coastal Cliff Retreat Along the California Coast
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2007-1133
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/2007/1133/
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The attributes in this dataset are based on the Digital Shoreline Analysis System (DSAS) version 3.2; An ArcGIS extension for calculating shoreline change (Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.M. 2005. U.S. Geological Survey Open-File Report 2005-1304).  The data has gone through a series of QA/QC procedures, and is therefore believed to accurately reflect the data gathered as part of the National Assessment of Shoreline Change Study.
Logical_Consistency_Report:
Transect generation was made as part of the calculation process for the Digital Shoreline Analysis System an Extension for ArcGIS (http://pubs.usgs.gov/of/2005/1304/). No additional checks for topological consistency were performed on the data.
Completeness_Report:
This cliff edge-transect data adequately represented the intersect at the time of the analysis.  Remaining gaps in this data, if applicable, are a consequence of non-existing data, transects crossing man-made features or existing data that did not meet quality assurance standards.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Postional Accuracy is based on position of shoreline with respect to the transect.
Lineage:
Process_Step:
Process_Description:
A baseline was manually constructed seaward of, and parallel to, the trend of shorelines representing four general time periods (1800s, 1920s-1930s, 1970s, and 1998-2002).  Using DSAS an Extension for ArcGIS (http://pubs.usgs.gov/of/2005/1304/), transects were generated with a spacing of 50m and transect-shoreline intersection points were saved to a separate layer.  Transects were manually eliminated to prevent calculation of rates in areas where less than four shorelines were intersected.

Long-term rates of shoreline change, in units of m/yr, were calculated at each transect using linear regression applied to all four shoreline positions from the earliest (1800s) to the most recent (derived from lidar).  Linear regression was selected because it has been shown to be the most statistically robust quantitative method when a limited number of shorelines are available and it is the most commonly applied statistical technique for expressing shoreline movement and estimating rates of change.  Uncertainties for the long-term rates are also reported in units of m/yr and represent a 90% confidence interval for the slope of the regression line.  This means with 90% statistical confidence that the true rate of shoreline change falls within the range defined by the reported value plus or minus the error value.  The variability around the trend reflects both measurement and sampling errors.  Short-term rates of shoreline change, in units of m/yr, were calculated using the endpoint method comparing the 1970s and most recent shoreline positions.
Process_Date: 2006
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Cheryl Hapke
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address:
USGS Patuxent Wildlife Research Center
Address:
University of Rhode Island
Address:
Coastal Field Station
Address:
317 Woodward Hall, Dept. of Geosciences
City: Kingston
State_or_Province: RI
Postal_Code: 02881
Country: USA
Contact_Voice_Telephone: 401-874-5532
Contact_Facsimile_Telephone: 401-874-2190
Contact_Electronic_Mail_Address: chapke@usgs.gov
Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Eastern Standard Time
Process_Step:
Process_Description:
Data were projected from UTM zone 10 to geographic

Tool: ArcGIS > ArcToolbox > Toolboxes > Data Management Tools > Project

Command issued:
['GCS_North_American_1983',DATUM['D_North_American_1983',SHPERIOD['GRS_1980',6378137.0,298.25722101]],PRIMEM['Greenwich',0.0],UNIT['Degree',0.0174532925199433]]
Process_Date: 20070215
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily Himmelstoss
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address:
384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2262
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: ehimmelstoss@usgs.gov
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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: 12073
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
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
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Norcal_intersects
Entity_Type_Definition:
Cliff Edge-Transect Intersections
Entity_Type_Definition_Source:
U.S. Geological Survey
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:
U.S. Geological Survey
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Digital Shoreline Analysis System (DSAS) version 3.0
Codeset_Source: Himmelstoss, E.A., and Miller, T.L., 2005, User guide and tutorial for the Digital Shoreline Analysis System (DSAS) version 3.2, extension for ArcGIS v.9.0, in Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.L., Digital Shoreline Analysis System (DSAS) version 3.0, an ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304 [http://pubs.er.usgs.gov/usgspubs/ofr/ofr20051304].
Attribute:
Attribute_Label: TransectId
Attribute_Definition:
The object identifier value of the transect
in the transect attribute table,
identifies transect with which the intersection points are associated.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Digital Shoreline Analysis System (DSAS) version 3.0
Codeset_Source: Himmelstoss, E.A., and Miller, T.L., 2005, User guide and tutorial for the Digital Shoreline Analysis System (DSAS) version 3.2, extension for ArcGIS v.9.0, in Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.L., Digital Shoreline Analysis System (DSAS) version 3.0, an ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304 [http://pubs.er.usgs.gov/usgspubs/ofr/ofr20051304].
Attribute:
Attribute_Label: BaselineId
Attribute_Definition:
Identifies which baseline the transect was cast from
based on the baseline ID field.
Useful when multiple baseline segments exist,
baseline ID used by Transect.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Digital Shoreline Analysis System (DSAS) version 3.0
Codeset_Source: Himmelstoss, E.A., and Miller, T.L., 2005, User guide and tutorial for the Digital Shoreline Analysis System (DSAS) version 3.2, extension for ArcGIS v.9.0, in Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.L., Digital Shoreline Analysis System (DSAS) version 3.0, an ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304 [http://pubs.er.usgs.gov/usgspubs/ofr/ofr20051304].
Attribute:
Attribute_Label: ShorelineI
Attribute_Definition:
Identifies which shoreline the transect is intersecting.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Digital Shoreline Analysis System (DSAS) version 3.0
Codeset_Source: Himmelstoss, E.A., and Miller, T.L., 2005, User guide and tutorial for the Digital Shoreline Analysis System (DSAS) version 3.2, extension for ArcGIS v.9.0, in Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.L., Digital Shoreline Analysis System (DSAS) version 3.0, an ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304 [http://pubs.er.usgs.gov/usgspubs/ofr/ofr20051304].
Attribute:
Attribute_Label: Distance
Attribute_Definition:
The transect length betwee the identified baseline and shoreline,
distance from Baseline to Shoreline-Transect Intersect
Attribute_Definition_Source:
U.S. Geological Survey
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Digital Shoreline Analysis System (DSAS) version 3.0
Codeset_Source: Himmelstoss, E.A., and Miller, T.L., 2005, User guide and tutorial for the Digital Shoreline Analysis System (DSAS) version 3.2, extension for ArcGIS v.9.0, in Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.L., Digital Shoreline Analysis System (DSAS) version 3.0, an ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304 [http://pubs.er.usgs.gov/usgspubs/ofr/ofr20051304].
Attribute:
Attribute_Label: IntersectY
Attribute_Definition:
The y-coordinate for the location point
of the shoreline/transect intersection.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Digital Shoreline Analysis System (DSAS) version 3.0
Codeset_Source: Himmelstoss, E.A., and Miller, T.L., 2005, User guide and tutorial for the Digital Shoreline Analysis System (DSAS) version 3.2, extension for ArcGIS v.9.0, in Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.L., Digital Shoreline Analysis System (DSAS) version 3.0, an ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304 [http://pubs.er.usgs.gov/usgspubs/ofr/ofr20051304].
Attribute:
Attribute_Label: IntersectX
Attribute_Definition:
The x-coordinate for the location point
of the shoreline/transect intersection.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Digital Shoreline Analysis System (DSAS) version 3.0
Codeset_Source: Himmelstoss, E.A., and Miller, T.L., 2005, User guide and tutorial for the Digital Shoreline Analysis System (DSAS) version 3.2, extension for ArcGIS v.9.0, in Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.L., Digital Shoreline Analysis System (DSAS) version 3.0, an ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304 [http://pubs.er.usgs.gov/usgspubs/ofr/ofr20051304].
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address:
Pacific Science Center
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
Resource_Description: downloadable data
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: SHP
Format_Version_Number: Unspecified
Format_Specification:
ESRI Polyline Shapefile. The DBF file contains the attribute data in dBASE format. The PRJ file contains the coordinate system information. The SBN and SBX files contain the spatial index of the geospatial data. The SHP file contains the geospatial data. The SHX file contains the index of the geospatial data. The XML file contains the metadata describing the data set.
File_Decompression_Technique: zip archive
Transfer_Size: 0.348
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://pubs.usgs.gov/of/2007/1112/NCal.zip
Network_Resource_Name: http://pubs.usgs.gov/of/2007/1112/
Access_Instructions:
Data are downloadable via the World Wide Web (WWW).
Fees: None
Technical_Prerequisites:
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 www.esri.com.
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Metadata_Reference_Information:
Metadata_Date: 20070319
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Cheryl Hapke
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address:
USGS Patuxent Wildlife Research Center
Address:
University of Rhode Island
Address:
Coastal Field Station
Address:
317 Woodward Hall, Dept. of Geosciences
City: Kingston
State_or_Province: RI
Postal_Code: 02881
Country: USA
Contact_Voice_Telephone: 401-874-5532
Contact_Facsimile_Telephone: 401-874-2190
Contact_Electronic_Mail_Address: chapke@usgs.gov
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
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