Digital Shoreline Analysis System version 4.3 Transects with Long-Term Linear Regression Rate Calculations for Texas west (TXwest)

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

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: U.S. Geological Survey
Publication_Date: 2017
Title:

Digital Shoreline Analysis System version 4.3 Transects with Long-Term Linear Regression Rate Calculations for Texas west (TXwest)

Edition: 1
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F78P5XNK

Publication_Information:

Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: https://doi.org/10.5066/F78P5XNK
Online_Linkage:

https://www.sciencebase.gov/catalog/item/582ca549e4b04d580bd3799d

Online_Linkage:

https://www.sciencebase.gov/catalog/file/get/582ca549e4b04d580bd3799d

Larger_Work_Citation:

Citation_Information:

Originator: E.A. Himmelstoss
Originator: M.G. Kratzmann
Originator: E.R. Thieler
Publication_Date: 2017
Title:

National Assessment of Shoreline Change— A GIS compilation of Updated Vector Shorelines and Associated Shoreline Change Data for the Gulf of Mexico Coast

Edition: 1
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F78P5XNK

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F78P5XNK
Online_Linkage:

https://www.sciencebase.gov/catalog/item/58055db4e4b0824b2d1c1ee2

Description:

Abstract:

Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project. There is no widely accepted standard for analyzing shoreline change. Existing shoreline data measurements and rate calculation methods vary from study to study and prevent combining results into state-wide or regional assessments. The impetus behind the National Assessment project was to develop a standardized method of measuring changes in shoreline position that is consistent from coast to coast. The goal was to facilitate the process of periodically and systematically updating the results in an internally consistent manner.

Purpose:

This dataset consists of long-term (~150 years) shoreline change rates for the Texas west coastal region from Aransas Pass to the Rio Grande at the Mexico border. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. Long-term rates of shoreline change were calculated using a linear regression rate based on available shoreline data for a minimum 50-year period. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate long-term rates.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2017

Currentness_Reference: publication date

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -97.394109
East_Bounding_Coordinate: -97.043513
North_Bounding_Coordinate: 27.845363
South_Bounding_Coordinate: 25.956940

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:582ca549e4b04d580bd3799d

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: Long-Term Shoreline Change Rate
Theme_Keyword: Shoreline
Theme_Keyword: Historic Shoreline
Theme_Keyword: Erosion
Theme_Keyword: Accretion
Theme_Keyword: Linear Regression Rate
Theme_Keyword: Transect
Theme_Keyword: Digital Shoreline Analysis System
Theme_Keyword: DSAS
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: National Assessment of Shoreline Change Project

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords
Theme_Keyword: effects of coastal change
Theme_Keyword: coastal processes
Theme_Keyword: shoreline accretion
Theme_Keyword: shoreline erosion

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: coastal processes
Theme_Keyword: erosion
Theme_Keyword: shoreline accretion

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Texas
Place_Keyword: TX
Place_Keyword: Aransas Pass
Place_Keyword: Port Aransas
Place_Keyword: Mustang Island
Place_Keyword: Padre Island
Place_Keyword: South Padre Island
Place_Keyword: Brazos Santiago Pass
Place_Keyword: Rio Grande
Place_Keyword: Gulf of Mexico
Place_Keyword: United States
Place_Keyword: North America

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 as the originator of the dataset.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: E.A. Himmelstoss

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
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: ehimmelstoss@usgs.gov

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552

Cross_Reference:

Citation_Information:

Originator: Robert A. Morton
Originator: Tara L. Miller
Originator: Laura J. Moore
Publication_Date: 2004
Title:

National Assessment of Shoreline Change: Part 1 Historical Shoreline Changes and Associated Coastal Land Loss along the U.S. Gulf of Mexico

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2004-1043

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://pubs.usgs.gov/of/2004/1043/

Cross_Reference:

Citation_Information:

Originator: E.R. Thieler
Originator: E.A. Himmelstoss
Originator: J.L. Zichichi
Originator: A. Ergul
Publication_Date: 2009
Title:

Digital Shoreline Analysis System (DSAS) version 4.0 - An ArcGIS extension for calculating shoreline change

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2008-1278

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Other_Citation_Details: Current version of software at time of use was 4.3
Online_Linkage: https://woodshole.er.usgs.gov/project-pages/DSAS/version4/
Online_Linkage: https://woodshole.er.usgs.gov/project-pages/DSAS/

Cross_Reference:

Citation_Information:

Originator: E.A. Himmelstoss
Originator: M.G. Kratzmann
Originator: E.R. Thieler
Publication_Date: 2017
Title:

National Assessment of Shoreline Change: Summary Statistics for Updated Vector Shorelines and Associated Shoreline Change Data for the Gulf of Mexico and Southeast Atlantic Coasts

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2017-1015

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.3133/ofr20171015

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The attributes of this dataset are based on the field requirements of the Digital Shoreline Analysis System and were automatically generated by the software during the generation of the transect layer or during the calculation of shoreline change rates performed by the software.

Logical_Consistency_Report:

These data were generated using DSAS v4.3, an automated software program which does not perform checks for fidelity of the input features. The transects were visually inspected and sometimes manually adjusted within a standard ArcMap edit session to adjust the position at which an individual transect intersected the shorelines.

Completeness_Report:

This dataset contains the transects automatically generated by the DSAS software application that were used to calculate long-term shoreline change rates for the region. Additional transects may have been generated but did not intersect the minimum requirement of three shorelines, one of which must be the modern (lidar-derived or 1990s) shoreline, to calculate long-term rates for a minimum 50-year period.

Lineage:

Process_Step:

Process_Description:

Transect features generated using DSAS v4.3 in ArcMap v10.2. Parameters Used: baseline layer=TXwest_baseline, baseline group field=NULL, transect spacing=50 meters, transect length=2000 meters, cast direction=AUTO-DETECT, baseline location=offshore, cast method=smoothed, smoothing distance=2500 meters, flip baselines=not selected. For additional details on these parameters, please see the DSAS help file distributed with the DSAS software, or visit the website at: https://woodshole.er.usgs.gov/project-pages/DSAS/version4/ This process step and all subsequent process steps were performed by the same person: M.G. Kratzmann.

Process_Date: 20150908
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: M.G. Kratzmann
Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing 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
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: mkratzmann@usgs.gov

Process_Step:

Process_Description:

Rate calculations performed using DSAS v4.3 in ArcMap v10.2 where at least three shorelines were present. Shoreline uncertainty table added to ArcMap project (TXwest_shorelines_uncertainty.dbf) and used by DSAS to apply bias-correction to distance measurements established by transects. Parameters Used: shoreline layer=TXwest_shorelines, shoreline date field=Date_, shoreline uncertainty field name=Uncy, the default uncertainty=10.8 meters, shoreline intersection parameters=closest, stats calculations=[Linear Regression Rate (LRR)], shoreline threshold=3, confidence interval=90%, Output rate table name=TXwest_LT_transects_rates_20150908_135236.

Process_Date: 20150908

Process_Step:

Process_Description:

Shoreline rates table (TXwest_LT_transects_rates_20150908_135236.dbf) was joined to the transect feature class in ArcMap v10.2 by right-clicking on the transect layer > joins and relates > join > join attributes from a table. Parameters: join field - Object ID; table to join - TXwest_LT_transects_rates_20150908_135236; field in table: TransectID; join options - keep only matching records.

Process_Date: 20150908

Process_Step:

Process_Description:

The joined transect feature class was exported to a shapefile in ArcMap v10.2 by right-clicking the transect layer > data > export data, permanently linking the joined rate fields to the transect attribute table.

Process_Date: 20150908

Process_Step:

Process_Description:

Any transects that did not cross the modern (lidar-derived or 1990s) shoreline were deleted using standard editing tools in ArcMap v10.2.

Process_Date: 20150908

Process_Step:

Process_Description:

A quality check was performed on any transects that intersected only three shorelines to be sure the 50-year span for long term rates was covered and that a modern (lidar-derived or 1990s) shoreline was present. A frequency table was created in ArcToobox v10.2 > Analysis Tools > Statistics > Frequency. The output frequency table was used to identify any transects with a count value of 3. If the long term rate criteria were not met, the transect was deleted.

Process_Date: 20150908

Process_Step:

Process_Description:

The exported transect shapefile was projected in Esri's ArcToolbox (v10.2) > Data Management Tools > Projections and Transformations > Project. Parameters: input projection - UTM zone 14N (WGS 84); output projection- geographic coordinates (WGS 84); transformation = none.

Process_Date: 20150909

Process_Step:

Process_Description:

Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.

Process_Date: 20170825
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Alan O. Allwardt

Contact_Position: Contractor -- Information Specialist
Contact_Address:

Address_Type: mailing and physical address
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-460-7551
Contact_Facsimile_Telephone: 831-427-4748
Contact_Electronic_Mail_Address: aallwardt@usgs.gov

Process_Step:

Process_Description:

Added keywords section with USGS persistent identifier as theme keyword.

Process_Date: 20200810
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@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: 4341

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: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: TXwest_LT_rates
Entity_Type_Definition:

Transects were automatically generated by DSAS at a 90 degree angle to the user-specified baseline using a smoothing algorithm to maintain roughly parallel transects that are orthogonal with respect to the baseline.

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: Esri
Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: OBJECTID
Attribute_Definition:

Internal feature number generated for each row of the transect attribute table when stored as a feature class in a geodatabase. This value is the common attribute field when joining to the TransectID value in long-term results output table calculated by DSAS.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: BaselineID
Attribute_Definition:

Unique identification number of the baseline segment. If BaselineID=0 no transects will be generated. Used by DSAS to determine transect ordering alongshore if multiple baseline segments exist.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: unlimited

Attribute:

Attribute_Label: TransOrder
Attribute_Definition:

Assigned by DSAS based on ordering of transects along the baseline. Used to allow user to sort transect data along the baseline from baseline start to baseline end.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: unlimited

Attribute:

Attribute_Label: ProcTime
Attribute_Definition:

Assigned by DSAS automatically to record the date and time a transect was processed.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: no value (when transect was manually created by user)
Range_Domain_Maximum:

unlimited (values based on time and date of automatic generation)

Attribute:

Attribute_Label: Autogen
Attribute_Definition:

Assigned by DSAS to indicate whether or not a transect was automatically created by DSAS (1= transect was auto generated by DSAS; blank or 0=transect was not auto-generated).

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: blank or 0
Range_Domain_Maximum: 1

Attribute:

Attribute_Label: StartX
Attribute_Definition:

Assigned by DSAS automatically to record the X coordinate of the beginning of the transect in meter units. If a transect position has been adjusted during the editing process, the coordinate in the attribute table is not updated automatically. This field was manually updated using Data East XTools v.10.2 to reflect the new position of any adjusted transects.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: Values based on data set extent.

Attribute:

Attribute_Label: StartY
Attribute_Definition:

Assigned by DSAS automatically to record the Y coordinate of the beginning of the transect in meter units. If a transect position has been adjusted during the editing process, the coordinate in the attribute table is not updated automatically. This field was manually updated using Data East XTools v.10.2 to reflect the new position of any adjusted transects.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: Values based on data set extent.

Attribute:

Attribute_Label: EndX
Attribute_Definition:

Assigned by DSAS automatically to record the X coordinate of the end of the transect in meter units. If a transect position has been adjusted during the editing process, the coordinate in the attribute table is not updated automatically. This field was manually updated using Data East XTools v.10.2 to reflect the new position of any adjusted transects.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: Values based on data set extent.

Attribute:

Attribute_Label: EndY
Attribute_Definition:

Assigned by DSAS automatically to record the Y coordinate of the end of the transect in meter units. If a transect position has been adjusted during the editing process, the coordinate in the attribute table is not updated automatically. This field was manually updated using Data East XTools v.10.2 to reflect the new position of any adjusted transects.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: Values based on data set extent.

Attribute:

Attribute_Label: Azimuth
Attribute_Definition:

Assigned by DSAS to record the azimuth of the transect measure in degrees clockwise from North. If a transect position has been adjusted during the editing process, the azimuth value in the attribute table is not updated automatically. This field was manually updated using a python script to reflect the new azimuth of any adjusted transects.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 360
Attribute_Units_of_Measure: degrees

Attribute:

Attribute_Label: SHAPE_Leng
Attribute_Definition: Length of feature in meter units (UTM zone 14N, WGS 84).
Attribute_Definition_Source: Esri
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1999.999996
Range_Domain_Maximum: 2000.000004
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: TransectId
Attribute_Definition:

Same value as ObjectID. Used as a permanent and unique identification number for each transect in the output rates table calculated by DSAS. This attribute was used as the common field when joining the rates table (.dbf) to the transect feature class in a geodatabase.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: LRR
Attribute_Definition:

A linear regression rate-of-change statistic was calculated by fitting a least-squares regression line to all shoreline points for a particular transect. The best-fit regression line is placed so that the sum of the squared residuals (determined by squaring the offset distance of each data point from the regression line and adding the squared residuals together) is minimized. The linear regression rate is the slope of the line. The rate is reported in meters per year with positive values indicating accretion and negative values indicating erosion.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -3.96
Range_Domain_Maximum: 7.51
Attribute_Units_of_Measure: meters per year

Attribute:

Attribute_Label: LR2
Attribute_Definition:

The R-squared statistic, or coefficient of determination, is the percentage of variance in the data that is explained by a regression. It is a dimensionless index that ranges from 1.0 to 0.0 and measures how successfully the best-fit line accounts for variation in the data. The smaller the variability of the residual values around the regression line relative to the overall variability, the better the prediction (and closer the R-squared value is to 1.0).

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 1

Attribute:

Attribute_Label: LSE
Attribute_Definition:

The predicted (or estimated) values of y (the distance from baseline in meters) are computed for each shoreline point by using the values of x (the shoreline date) and solving the equation for the best-fit regression line (y=mx+b). The standard error is also called the standard deviation.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.37
Range_Domain_Maximum: 217.67
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: LCI90
Attribute_Definition:

The standard error of the slope with confidence interval describes the uncertainty of the reported rate. The LRR rates are determined by a best-fit regression line for the shoreline data at each transect. The slope of this line is the reported rate of change (in meters/year). The confidence interval (LCI) is calculated by multiplying the standard error (also called the standard deviation) of the slope by the two-tailed test statistic at the user-specified 90 percent confidence. This value is often reported in conjunction with the slope to describe the confidence of the reported rate. For example: LRR = 1.2 LCI90 = 0.7 could be reported as a rate of 1.2 (+/-) 0.7 meters/year.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.114
Range_Domain_Maximum: 3.491
Attribute_Units_of_Measure: meters

Overview_Description:

Entity_and_Attribute_Overview:

The entity and attribute information provided here describes the tabular data associated with the dataset. Please review the individual attribute descriptions for detailed information. All calculations for length are in meter units and were based on the UTM zone 14N (WGS 84) projection.

Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address
Address: Denver Federal Center
Address: Building 810
Address: MS 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA

Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov

Distribution_Liability:

Neither the U.S. Government, the Department of the Interior, nor the USGS, 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 information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. 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: Shapefile
Format_Version_Number: ArcGIS 10.2
Format_Specification: Esri polyline shapefile
Format_Information_Content:

These files (.cpg, .dbf, .prj, .sbn, .sbx, .shp, .shp.xml, and .shx) are a collection of files with a common filename prefix and must be downloaded and stored in the same directory. Together they are the components of the shapefile and include FGDC compliant metadata.

File_Decompression_Technique: no compression applied
Transfer_Size: 1.5

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/582ca549e4b04d580bd3799d

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/582ca549e4b04d580bd3799d

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/58055db4e4b0824b2d1c1ee2

Network_Resource_Name: https://doi.org/10.5066/F78P5XNK

Access_Instructions:

The first link downloads the contents of the data page as a zip file, the second link is to the landing page of the data, the third and fourth links are to the main landing page of the data release.

Fees: None

Technical_Prerequisites:

These data are available in a polyline shapefile format. The user must have software to read and process the data components of a shapefile.

Metadata_Reference_Information:

Metadata_Date: 20240319
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: E.A. Himmelstoss
Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing 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: 508-547-2310
Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov
Contact_Instructions:

The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240319)

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_F78P5XNK/TXwest_LT_rates.shp.html>