GrandBay_2012_Shoreline.shp - Grand Bay, Mississippi/Alabama, Shoreline Data Derived from 2012 Aerial Imagery

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Paul R. Nelson
Originator: Stephen T. Bosse
Originator: Christopher G. Smith
Publication_Date: 20180525
Title:
GrandBay_2012_Shoreline.shp - Grand Bay, Mississippi/Alabama, Shoreline Data Derived from 2012 Aerial Imagery
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F7VT1R8Q
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7VT1R8Q
Description:
Abstract:
GrandBay_2012_Shoreline.zip features a digitized historical shoreline for the Grand Bay, Mississippi (MS) coastline (Pascagoula, MS to Bayou La Fourche Bay, Alabama [AL]) derived from 2012 aerial imagery. Imagery of the Mississippi and Alabama coastlines was acquired from the National Agriculture Imagery Program (NAIP). Using ArcMap 10.3.1, the imagery was used to delineate and digitize a coarse historical shoreline as either proximal Wet Dry Line along sandy beaches or proximal vegetation edge along the marsh coastline at a scale of 1:2000 or 1:6000.
Purpose:
Shoreline data are considered a crucial element in performing change analyses for erosion and accretion studies for tracking shoreline movement over time. Aerial imagery was used to digitize a set of polylines (feature) that reflect the Grand Bay shoreline position for the year 2012. The digitized feature captures the shape of the shoreline and provides an accurate and measurable position that can be used for various assessments. When this shoreline is combined with other historical shorelines from the area digitized in a similar manner, quantitative rates of change of shoreline position can be determined. Therefore these data can aid in developing an understanding of the temporal and spatial evolution of the coastline.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20120909
Ending_Date: 20121010
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -88.485097935
East_Bounding_Coordinate: -88.370196475
North_Bounding_Coordinate: 30.420453608
South_Bounding_Coordinate: 30.318453278
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:466a3f6d-7f65-4cfb-9110-39919e4d6f99
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme_Keyword: environment
Theme_Keyword: elevation
Theme_Keyword: boundaries
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: coastal processes
Theme_Keyword: marine geology
Theme_Keyword: geomorphology
Theme_Keyword: remote sensing
Theme_Keyword: unconsolidated deposits
Theme_Keyword: aerial photography
Theme_Keyword: digitization
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: shoreline data
Theme_Keyword: shoreline map
Theme_Keyword: Wet Dry Line
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Grand Bay
Place_Keyword: Gulf of Mexico
Place_Keyword: United States of America
Place_Keyword: Alabama
Place_Keyword: Mississippi
Access_Constraints: None
Use_Constraints:
The U.S. Geological Survey requests to be acknowledged as originator of the data in future products or derivative research. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey Coastal and Marine Science Center
Contact_Person: Christopher G. Smith
Contact_Address:
Address_Type: Mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Contact_Voice_Telephone: 727-502-8035
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: cgsmith@usgs.gov
Data_Set_Credit:
Acknowledgment of the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices. Sharing of new data layers developed directly from these data would also be appreciated by the U.S. Geological Survey staff. Users should be aware that comparisons with other datasets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photointerpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such.
Native_Data_Set_Environment:
Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1 (Build 4959) Service Pack N/A (Build N/A)
Cross_Reference:
Citation_Information:
Originator: F.J. Anders
Originator: M.R. Byrnes
Publication_Date: 1991
Title:
Accuracy of shoreline change rates as determined from maps and aerial photographs
Series_Information:
Series_Name: Shore and Beach
Issue_Identification: 59(1):17-26
Cross_Reference:
Citation_Information:
Originator: M. Crowell
Originator: S.P. Leatherman
Originator: M.K. Buckley
Publication_Date: 1991
Title:
Historical shoreline change: error analysis and mapping accuracy.
Series_Information:
Series_Name: Journal of Coastal Research
Issue_Identification: 7(3):839-852
Cross_Reference:
Citation_Information:
Originator: R.A. Morton
Originator: T.L. Miller
Originator: L.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: U.S. Geological Survey Open-File Report
Issue_Identification: 2004-1043
Publication_Information:
Publication_Place:
St. Petersburg Coastal & Marine Science Center, St. Petersburg, FL
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://pubs.er.usgs.gov/publication/ofr20041043
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: No formal attribute accuracy tests were conducted.
Logical_Consistency_Report:
Digitized shorelines were checked to ensure they were one continuous line and were checked for dangles (or extra line segments), which were removed, when necessary. Larger estuarine channels were digitized, as needed, to ensure a complete shoreline for subsequent use within shoreline change analysis programs.
Completeness_Report:
Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
A formal accuracy assessment of the horizontal positional information in the dataset has not been conducted.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Department of Agriculture (USDA)
Publication_Date: 2012
Title: NAIP JPEG2000 ENTITY ID: M_3008837_NW_16_1_20120909_20121010
Geospatial_Data_Presentation_Form: digital raster format
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher: USGS Earth Resources Observations and Science (EROS) Center
Online_Linkage: https://lta.cr.usgs.gov/node/300
Source_Scale_Denominator: 12000
Type_of_Source_Media: Digital and/or Hardcopy Resources
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20120909
Source_Currentness_Reference: Ground Condition
Source_Citation_Abbreviation: MS_Orthophoto_2012
Source_Contribution: Imagery was used to delineate and digitize shoreline positions.
Process_Step:
Process_Description:
Imagery was acquired from EROS. All data were provided orthorectified to provide the highest accuracy. Imagery was brought in ArcGIS 10.3.1 for overlay and further mapping.
Source_Used_Citation_Abbreviation: MS_Orthophoto_2012
Process_Date: 20160516
Source_Produced_Citation_Abbreviation: GrandBay_2012_Shoreline.shp
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Christopher G. Smith
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: Mailing and Physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: Florida
Postal_Code: 33701
Country: US
Contact_Voice_Telephone: 727-502-8035
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: cgsmith@usgs.gov
Process_Step:
Process_Description:
Process_Description: Using ArcMap 10.3.1, aerial images were visually assessed for shoreline features at a reference scale of 1:2000 and 1:6000. Shoreline features used, that is the shoreline digitized, were the Wet Dry Line (WDL) along sandy beaches or marsh-wetland edge along vegetated shorelines. The digitization was implemented using the ArcMap 10.3.1 Editor Toolbar part of the Esri ArcGIS software suite. Typology errors (a form of quality control for vector data) were assessed after the full shoreline was digitized using a cluster tolerance of 0.001 and typological rules to identify OVERLAPS, INTERSECTS, DANGLES, SELF-INTERSECTS, and SELF-OVERLAPS. All such features (except the start and end points at the most western and eastern extents of the area) were removed or corrected to ensure a single continuous feature.
Source_Used_Citation_Abbreviation: MS_Orthophoto_2012
Process_Date: 20160516
Source_Produced_Citation_Abbreviation: GrandBay_2012_Shoreline.shp
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Christopher G. Smith
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: Mailing and Physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: Florida
Postal_Code: 33701
Country: US
Contact_Voice_Telephone: 727-502-8035
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: cgsmith@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20201013
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: 414
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 16
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -87.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.6096
Ordinate_Resolution: 0.6096
Planar_Distance_Units: Meter
Geodetic_Model:
Horizontal_Datum_Name: D_North_American_1983
Ellipsoid_Name: GRS_1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Grandbay_2012_Shoreline
Entity_Type_Definition:
Esri polyline shapefile of shoreline features (WDL or vegetated edge) delineated from 2012 aerial imagery. A table containing attribute information associated with this dataset is included in GrandBay_2012_Shoreline.zip and described below.
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: DigScale
Attribute_Definition:
Reference scale used in ArcGIS 10.3.1 to identify and digitize the shoreline from aerial images.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1:2000
Enumerated_Domain_Value_Definition:
Ratio of image viewed in ArcGIS 10.3.1 relative to real world conditions
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1:6000
Enumerated_Domain_Value_Definition:
Ratio of image viewed in ArcGIS 10.3.1 relative to real world conditions
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: VecLength
Attribute_Definition:
Linear distance, in meters, of the digital feature (line) representing the shoreline.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.15897487
Range_Domain_Maximum: 14332.38332
Attribute:
Attribute_Label: dImageDate
Attribute_Definition:
Date of image collection provided to USGS staff by the data source (see Source_Information of the Lineage section for additional details), stored in date format (M/DD/YYYY).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 9/24/2012
Enumerated_Domain_Value_Definition:
Mid-point of dates of image collection provided with the USDA NAIP image mosaic stored in date format (M/DD/YYYY). Actual date range is from 2012/09/09 to 2012/10/10.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: sImageDate
Attribute_Definition:
Date of image collection provided by NAIP stored in string format ('MM/DD/YY hh:mm:ss AM').
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 09/24/12 12:00:00 AM
Enumerated_Domain_Value_Definition:
Mid-point of dates of image collection provided with the USDA NAIP image mosaic stored in string format. Actual date range is from 2012/09/09 to 2012/10/10.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: ShoreType
Attribute_Definition:
Term used to denote the shoreline type that was present as the shoreline was digitized.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Marsh
Enumerated_Domain_Value_Definition:
Term used to denote when the shoreline was manually identified as marsh or vegetated edge/boundary.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sand
Enumerated_Domain_Value_Definition:
Term used to denote when the shoreline was identified as sandy shoreline.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: DigFeat
Attribute_Definition:
Term used denoting digitized-shoreline feature given the reference scale.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Veg
Enumerated_Domain_Value_Definition:
Term used denoting that a vegetated-edge was digitized as the shoreline.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: WDL
Enumerated_Domain_Value_Definition:
Term used denoting that the Wet Dry Line (WDL) on sloping surface was digitized as the shoreline. There is no available information about beach slope to determine uncertainty with the digitized feature.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: ImageRes
Attribute_Definition: Horizontal image resolution, in meters, provided by the NAIP.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1
Attribute:
Attribute_Label: ImagUnc
Attribute_Definition:
Horizontal uncertainty, in meters, of orthorectified image provided by NAIP.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 6
Range_Domain_Maximum: 6
Attribute:
Attribute_Label: ShoreUnc
Attribute_Definition:
Horizontal uncertainty, in meters, of digitized shoreline feature based on image resolution and horizontal uncertainty. It was computed as the square root of the sum of squares of the image resolution, image uncertainty, and the maximum digitization error of 1 meter reported by other studies (Anders & Byrnes, 1991; Crowell and Leatherman, 1991; Morton and others, 2004). The no data value, -999, reflects areas where the WDL was digitized and uncertainty in shoreline position cannot be computed in this manner confidently due to the lack of slope information.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -999
Range_Domain_Maximum: 6.08276253
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey Coastal and Marine Science Center
Contact_Person: Christopher G. Smith
Contact_Address:
Address_Type: Mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Contact_Voice_Telephone: 727-502-8035
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: cgsmith@usgs.gov
Resource_Description: GrandBay_2012_Shoreline.shp
Distribution_Liability:
This digital publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: SHP (Esri Shapefile)
Format_Information_Content:
The download file (.zip format) included in this data release contains a shapefile of an aerial-imagery derived shoreline from 2012 for Grand Bay, Mississippi and Alabama.
File_Decompression_Technique: Unzip
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://coastal.er.usgs.gov/data-release/doi-F7VT1R8Q/data/GrandBay_2012_Shoreline.zip
Fees: None. No fees are applicable for obtaining the dataset.
Metadata_Reference_Information:
Metadata_Date: 20201013
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey Coastal and Marine Science Center
Contact_Person: Christopher G. Smith
Contact_Address:
Address_Type: Mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Contact_Voice_Telephone: 727-502-8035
Contact_Facsimile_Telephone: 727-502-8182
Contact_Electronic_Mail_Address: cgsmith@usgs.gov
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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