lt_transects.shp - Long-term shoreline change rates for Rincon, Puerto Rico 1936-2006

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: E.R. Thieler
Publication_Date: 2007
Title:
lt_transects.shp - Long-term shoreline change rates for Rincon, Puerto Rico 1936-2006
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2007-1017
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: http://pubs.usgs.gov/of/2007/1017/data/shapefiles/lt_transects.zip
Online_Linkage: http://pubs.usgs.gov/of/2007/1017/htmldocs/data_catalog.html
Larger_Work_Citation:
Citation_Information:
Originator: E.R. Thieler
Originator: R.W. Rodriguez
Originator: E.A. Himmelstoss
Publication_Date: 2007
Title:
Historical Shoreline Changes at Rincon, Puerto Rico, 1936-2006
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2007-1017
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: http://pubs.usgs.gov/of/2007/1017/
Description:
Abstract:
The 8 km of shoreline from Punta Higüero to Punta Cadena in Rincón, Puerto Rico is experiencing long-term coastal erosion. This study documents historical shoreline changes at Rincón for the period 1936-2006. Thirteen historical shoreline positions were compiled from existing data, new orthophotography, and GPS field surveys. Shoreline vectors represent the high water line at the time of the survey.
Purpose:
This dataset is a subset of the resulting output file from the Digital Shoreline Analysis System (DSAS) ArcGIS extension. Transects were cast at 50 meter spacing from Punta Higuero to Punta Cadena. The attribute table associated with this file was populated with values by the DSAS software and reports the long-term rate of change statistic based on the distances between shoreline intersections along each transect.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2007
Currentness_Reference:
publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -67.272123
East_Bounding_Coordinate: -67.234293
North_Bounding_Coordinate: 18.360995
South_Bounding_Coordinate: 18.298504
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: long-term shoreline change
Theme_Keyword: transect
Theme_Keyword: beach erosion
Theme_Keyword: beach nourishment
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: WHSC
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme_Keyword: oceans and coastal
Theme_Keyword: oceans and estuaries
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: Puerto Rico
Place_Keyword: Rincon
Place_Keyword: Punta Higuero
Place_Keyword: Punta Cadena
Place_Keyword: Antilles
Place_Keyword: Carribbean
Access_Constraints: None
Use_Constraints:
Public domain data are freely redistributable with proper metadata and source attribution.  The U.S. Geological Survey (USGS) must be referenced as the originator of the dataset in any future products or research derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: E.R. Thieler
Contact_Organization: U.S. Geological Survey
Contact_Position: Research 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 x2350
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: rthieler@usgs.gov
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: E.R. Thieler
Originator: E.A. Himmelstoss
Originator: J.L. Zichichi
Originator: T.L. Miller
Publication_Date: 2005
Title:
Digital Shoreline Analysis System (DSAS) version 3.0: An ArcGIS extension for calculating shoreline change
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/index.html
Online_Linkage: http://woodshole.er.usgs.gov/project-pages/dsas/
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute accuracy was tested by visual inspection.
Logical_Consistency_Report:
No additional checks for topological consistency were performed on the data.
Completeness_Report:
These data are a subset of the Digital Shoreline Analysis System (DSAS) output transect file. The weighted linear regression (WLR) rate and supplemental statistics have been used to quantify long-term shoreline change.
Lineage:
Process_Step:
Process_Description:
Transects were generated with a spacing of 50m and saved to a separate feature class using the Digital Shoreline Analysis System (DSAS). The transect-shoreline intersection points were used to compute the statistics that are reported in the newly created transect attribute table. Long-term rates of shoreline change, in units of m/yr, were calculated at each transect using weighted linear regression applied to all shoreline positions from the earliest (1936) to the most recent (2006). Weighted Linear Regression (WLR) was selected because it is a statistically robust quantitative method resulting in a best-fit line that places greater emphasis on data points with a smaller amount of uncertainty. Supplemental statistics for the long-term rates are also reported in units of m/yr and represent a 95% confidence interval for the slope of the regression line. This means with 95% 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.
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: E.R. Thieler
Contact_Organization: U.S. Geological Survey
Contact_Position: Research 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 x2350
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: rthieler@usgs.gov
Process_Step:
Process_Description:
Data were projected from UTM zone 19 N to geographic. 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_1983_To_WGS_1984_1
Process_Date: 20071018
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Emily Himmelstoss
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: String
Point_and_Vector_Object_Count: 161
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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 1980
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: st_transects
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: BaselineID
Attribute_Definition:
Baseline segment from which the transect is generated.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: TransOrder
Attribute_Definition:
Transect feature number in sequential order alongshore.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: StartX
Attribute_Definition:
X starting position of the transect in UTM meters.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: StartY
Attribute_Definition:
Y starting position of the transect in UTM meters.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: EndX
Attribute_Definition:
X ending position of the transect in UTM meters.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: EndY
Attribute_Definition:
Y ending position of the transect in UTM meters.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: Azimuth
Attribute_Definition:
The transect's horizontal angular distance from north.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: ShorelineD
Attribute_Definition:
Sequential list of shoreline dates that the transect intersects.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: PointCNT
Attribute_Definition:
Number of shoreline intersections in the rate calculation.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: WLR
Attribute_Definition:
Weighted Linear Regression
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: WR2
Attribute_Definition:
Correlation coefficient (r^2) for weighted linear regression
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: WSE
Attribute_Definition:
Standard error of the estimate for weighted linear regression.
Attribute_Definition_Source:
U.S. Geological Survey
Attribute:
Attribute_Label: WCI95
Attribute_Definition:
Standard error of the slope at a 95% confidence interval for weighted linear regression
Attribute_Definition_Source:
U.S. Geological Survey
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: E.R. Thieler
Contact_Organization: U.S. Geological Survey
Contact_Position: Research 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 x2350
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: rthieler@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.

Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: SHP
Format_Specification:
ESRI Polyline Shapefile
Format_Information_Content:
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: 0.014
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://pubs.usgs.gov/of/2007/1017/data/shapefiles/lt_transects.zip
Network_Resource_Name: http://pubs.usgs.gov/of/2007/htmldocs/data_catalog.html
Access_Instructions:
Data are downloadable via the World Wide Web (WWW).
Offline_Option:
Offline_Media: DVD-ROM
Recording_Capacity:
Recording_Density: 4.75
Recording_Density_Units: Gbytes
Recording_Format: UDF
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 data. A free data viewer, ArcExplorer, capable of displaying the data is availab efrom ESRI at www.esri.com.
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2007
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Metadata_Reference_Information:
Metadata_Date: 20070222
Metadata_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
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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