Identification_Information: Citation: Citation_Information: Originator: Cheryl Hapke Originator: David Reid Publication_Date: 2006 Title: NORCAL_BASELINES - Offshore Baseline for Northern California Generated to Calculate Shoreline Change Rates Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2006-1251 Publication_Information: Publication_Place: Pacific Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2006/1251/NCal.zip Larger_Work_Citation: Citation_Information: Originator: Cheryl Hapke Originator: David Reid Publication_Date: 2006 Title: National Assessment of Shoreline Change: A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the Sandy Shorelines of the California Coast Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2006-1251 Publication_Information: Publication_Place: Pacific Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2006/1251/ Description: Abstract: Rates of long-term and short-term shoreline change 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 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 U.S. Geological Survey (USGS) National Assessment Project. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -124.409354 East_Bounding_Coordinate: -122.968455 North_Bounding_Coordinate: 41.999479 South_Bounding_Coordinate: 38.231342 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 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: oceans and estuaries Theme_Keyword: oceans and coastal Theme_Keyword: environment Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: General 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: Bruce Richmond 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 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 9.1.0.780 Cross_Reference: Citation_Information: Originator: Cheryl J. Hapke Originator: David Reid Originator: Bruce M. Richmond Originator: Peter Ruggiero Originator: Jeff List Publication_Date: 2006 Title: National Assessment of Shoreline Change Part 3: Historical Shoreline Change and Associated Coastal Land Loss Along Sandy Shorelines of the California Coast Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2006-1219 Publication_Information: Publication_Place: 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/ Cross_Reference: Citation_Information: Originator: E. Robert Thieler Originator: Emily A. Himmelstoss Originator: Jessica L. Zichichi Originator: Tara L. Miller Publication_Date: 2005 Title: The Digital Shoreline Analysis System (DSAS) version 3.0, an ArcGIS Extension for Calculating Historic Shoreline Change Edition: 3.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1304 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://woodshole.er.usgs.gov/project-pages/DSAS/version3/ Data_Quality_Information: Logical_Consistency_Report: Baseline 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/) Completeness_Report: This baseine data represents a generalization of the shoreline of California used by DSAS. Remaining gaps in this data, if applicable, are a consequence of non-existing shoreline data. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: A Baseline was generated within ArcGIS to be used by the Digital Shoreline Anaylsis System (http://pubs.usgs.gov/of/2005/1304/)in the calculation of shoreline change rates. Please visit our full report on shoreline change in the Coastline of California (http://pubs.usgs.gov/of/2006/1219/) for more information about this analysis 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 (USGS OFR 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_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Bruce Richmond 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 Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Pacific Standard Time Process_Step: Process_Description: Data were projected from UTM zone 10 to geographic with a datum shift from NAD27 to NAD83 Tool: ArcGIS > ArcToolbox > Toolboxes > Data Management Tools > Project Command issued: GEOGCS['GCS_North_American_1983',DATUM['D_North_American_1983',SPHEROID['GRS_1980',6378137.0,298.257222101]],PRIMEM['Greenwich',0.0],UNIT['Degree',0.0174532925199433]] # NAD_1927_To_NAD_1983_NADCON Process_Date: 20070716 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 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: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000000 Longitude_Resolution: 0.000000 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: Norcal_Baseline Entity_Type_Definition: Baseline for Southern California 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: 30 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: USGS Enumerated_Domain_Value_Definition: United States Geological Survey 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: 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: Baseline Enumerated_Domain_Value_Definition: Vector baseline. 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 feature. Attribute: Attribute_Label: DATE_ 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 Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Eastern Standard Time Resource_Description: Downloadable Data: USGS Open-File Report 2006-1251 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: 20060901 Format_Specification: ESRI polyline shapefile Format_Information_Content: Seven files comprise the ArcView shapefile: .dbf, .shp, .shx, .prj, .avl, .sbx, .sbn File_Decompression_Technique: zip archive Transfer_Size: 0.038 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2006/1251/NCal.zip Network_Resource_Name: http://pubs.usgs.gov/of/2006/1251/#gis Access_Instructions: Data may be downloaded 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. Metadata_Reference_Information: Metadata_Date: 20070716 Metadata_Review_Date: 20070301 Metadata_Contact: 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 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_Access_Constraints: None Metadata_Use_Constraints: None Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile