Shorelines Extracted from 1984-2015 Landsat Imagery: Cat Island, Mississippi (Polygon: Combined Dates)

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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: 2015
Title:

Shorelines Extracted from 1984-2015 Landsat Imagery: Cat Island, Mississippi (Polygon: Combined Dates)

Geospatial_Data_Presentation_Form: vector digital data
Series_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F7JQ0Z3R

Publication_Information:

Publication_Place: St. Petersburg, Florida.
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F7JQ0Z3R

Description:

Abstract:

Shorelines Extracted from 1984-2015 Landsat Imagery: Cat Island, Mississippi (Polygon: Combined Dates) is a polygon shapefile representing shorelines generated from satellite imagery that was collected from 1984 to 2015. The sample frequency of satellite imagery is much higher, and the coverage much greater, than most routine high-resolution topographic surveys. Certain aspects of barrier island morphology, such as island size, shape and position, can be determined from these images and can indicate erosion, land loss, and island breakup. Studying how these characteristics evolve will help develop an understanding of how barrier islands will respond to climate change, sea level rise, and major storms in the future and that will serve to improve management of coastal resources.

Purpose:

To document the Cat Island, Miss. shorelines, from March 25, 1984 to May 23, 2015 as observed from Landsat 5 Thematic Mapper (TM), Landsat 7 Enhanced Thematic Mapper Plus (ETM+), and Landsat Operational Land Imager (OLI) satellite imagery. These data will aid in developing an understanding of the change in barrier island size, shape and position, which can indicate erosion, land loss and island breakup. This dataset, cat_polys_combined_dates.zip, and others are included in a USGS Data Release, which can be accessed online at https://doi.org/10.5066/F7JQ0Z3R.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19840325
Ending_Date: 20150523

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -89.161974
East_Bounding_Coordinate: -89.059516
North_Bounding_Coordinate: 30.255079
South_Bounding_Coordinate: 30.200014

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:24162e62-6de2-42d3-8825-b5c349159a7f

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: satellite imagery
Theme_Keyword: remote sensing
Theme_Keyword: Landsat 5
Theme_Keyword: Landsat 7
Theme_Keyword: Landsat 8
Theme_Keyword: Thematic Mapper (TM)
Theme_Keyword: Enhanced Thematic Mapper Plus (ETM+)
Theme_Keyword: Operational Land Imager (OLI)
Theme_Keyword: barrier island
Theme_Keyword: shoreline

Theme:

Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD)
Theme_Keyword: LAND SURFACE > LAND USE/LAND COVER > LAND COVER
Theme_Keyword: OCEAN > COASTAL PROCESSES > BARRIER ISLANDS
Theme_Keyword: COASTAL PROCESSES > BEACHES
Theme_Keyword:

DOI/USGS/CMG > COASTAL AND MARINE GEOLOGY, U.S. GEOLOGICAL SURVEY, U.S. DEPARTMENT OF INTERIOR

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords
Theme_Keyword: mapping
Theme_Keyword: shore
Theme_Keyword: shoreline erosion
Theme_Keyword: shoreline accretion
Theme_Keyword: barrier island migration
Theme_Keyword: remote sensing
Theme_Keyword: aerial and satellite photography

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: coastal processes
Theme_Keyword: erosion
Theme_Keyword: shoreline accretion
Theme_Keyword: barrier island migration
Theme_Keyword: remote sensing

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Mississippi
Place_Keyword: Cat Island
Place_Keyword: United States
Place_Keyword: Harrison County
Place_Keyword: Gulf of Mexico
Place_Keyword: Mississippi Sound

Temporal:

Temporal_Keyword_Thesaurus: General
Temporal_Keyword: 1984
Temporal_Keyword: 1985
Temporal_Keyword: 1986
Temporal_Keyword: 1987
Temporal_Keyword: 1988
Temporal_Keyword: 1989
Temporal_Keyword: 1990
Temporal_Keyword: 1991
Temporal_Keyword: 1992
Temporal_Keyword: 1993
Temporal_Keyword: 1994
Temporal_Keyword: 1995
Temporal_Keyword: 1996
Temporal_Keyword: 1997
Temporal_Keyword: 1998
Temporal_Keyword: 1999
Temporal_Keyword: 2000
Temporal_Keyword: 2001
Temporal_Keyword: 2002
Temporal_Keyword: 2003
Temporal_Keyword: 2004
Temporal_Keyword: 2005
Temporal_Keyword: 2006
Temporal_Keyword: 2007
Temporal_Keyword: 2008
Temporal_Keyword: 2009
Temporal_Keyword: 2010
Temporal_Keyword: 2011
Temporal_Keyword: 2013
Temporal_Keyword: 2014
Temporal_Keyword: 2015

Access_Constraints: None.
Use_Constraints:

None. However, variability in image quality from one date to another, from one image to another on the same date, and from one part of a single image to another part of the same image, exists due to many factors including variation in sun angle, atmospheric conditions, season, reflectivity of the earth surface, camera angle, camera lens, camera settings, film sensitivity, water turbidity, water depth, tide level, waves, and error in image rectification. No adjustments were made to account for tide level.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Kristy Guy

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th St. S.
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Facsimile_Telephone: 727-502-8181
Contact_Electronic_Mail_Address: kguy@usgs.gov
Hours_of_Service: Monday through Friday 9:00 AM to 5:00 PM (Eastern Time)

Data_Set_Credit:

Acknowledgment of the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center Coastal and Marine Geology Program (SPCMSC), 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:

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

Data_Quality_Information:

Logical_Consistency_Report:

Variations in image quality and in atmospheric and surface conditions may have affected the quality of the shorelines. Tide levels vary from image to image which affects the apparent shoreline. No adjustments were made for varying tide levels.

Completeness_Report:

This dataset is considered complete for the information presented, as described in the abstract section. Users are advised to read the rest of the metadata record carefully for additional details. Landsat 7 ETM+ images after May 2003 were not used due to striping caused by the failure of the instrument's scan-line corrector. No shorelines were created for 2012 due to poor Landsat 7 image quality.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: The horizontal accuracy of the data is unknown.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: USGS
Publication_Date: 2011
Title: USGS Landsat 5 TM Images
Geospatial_Data_Presentation_Form: satellite imagery
Publication_Information:

Publication_Place: Sioux Falls, SD
Publisher: USGS Earth Resources Observation and Science (EROS) Center

Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19840325
Ending_Date: 20111104

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: Landsat 5 TM
Source_Contribution:

This data source was used to identify barrier island shorelines.

Source_Information:

Source_Citation:

Citation_Information:

Originator: USGS
Publication_Date: 2003
Title: USGS Landsat 7 ETM+ Images
Geospatial_Data_Presentation_Form: satellite imagery
Publication_Information:

Publication_Place: Sioux Falls, SD
Publisher: USGS Earth Resources Observation and Science (EROS) Center

Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19991111
Ending_Date: 20030530

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: Landsat 7 ETM+
Source_Contribution:

This data source was used to identify barrier island shorelines.

Source_Information:

Source_Citation:

Citation_Information:

Originator: USGS
Publication_Date: 2015
Title: USGS Landsat 8 OLI Images
Geospatial_Data_Presentation_Form: satellite imagery
Publication_Information:

Publication_Place: Sioux Falls, SD
Publisher: USGS Earth Resources Observation and Science (EROS) Center

Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20130618
Ending_Date: 20150523

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: Landsat 8 OLI
Source_Contribution:

This data source was used to identify barrier island shorelines.

Process_Step:

Process_Description:

Landsat 5 Thematic Mapper (TM), Landsat 7 Enhanced Thematic Mapper Plus (ETM+), and Landsat 8 Operational Land Imager (OLI) satellite imagery were acquired in digital format from the U.S. Geological Survey Global Visualization Viewer (http://glovis.usgs.gov/). Images were selected based on cloud-free areas of interest. Landsat 7 ETM+ images after May 2003 were not used due to striping caused by the failure of the instrument's scan-line corrector. The Landsat images were processed using ArcGIS. Images were subset (trimmed) to the area of interest and isolines were generated based on the numerical values of band 7. Band 7, an infrared band (2.08-2.35 µm for TM, 2.09-2.35 µm for ETM+, 2.11-2.29 µm for OLI), clearly distinguishes land from water due to the absorption of these wavelengths by water (Lillesand and Kiefer, 1987) resulting in a low reflectance in contrast to the higher reflectance of land areas, particularly sand. Each isoline was visually compared with its corresponding image and the isoline that best represented the land/water line was selected to represent the shoreline and saved to a shapefile. When necessary, small hand edits were made to the selected isolines. The line features were then converted to polygons. The individual date polygon shapefiles were combined into one combined date shapefile. Wet, marshy shorelines were less reliably delineated using this method and varied more with tide level than the sandy shorelines. Predicted tide levels relative to Mean Lower Low Water (MLLW) from the Dauphin Island, Ala. tide station were obtained from a tide and current prediction program, WXTide32, (www.wxtide32.com) and added as an attribute to cat_po_19840325_20150523.shp. No adjustments were made to the shorelines for varying tide levels.

Source_Used_Citation_Abbreviation: Landsat 5 TM
Source_Used_Citation_Abbreviation: Landsat 7 ETM+
Source_Used_Citation_Abbreviation: Landsat 8 OLI
Process_Date: 2015
Source_Produced_Citation_Abbreviation: cat_po_19840325_20150523.shp; cat_po_*.shp
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th St. S.
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Facsimile_Telephone: 727-502-8181
Hours_of_Service: Monday through Friday 8:00 AM to 5:00 PM (Eastern Time)
Contact_Instructions:

If unable to reach the contact by telephone, please leave a voice message.

Process_Step:

Process_Description:

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

Process_Date: 20170214
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: 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: G-polygon
Point_and_Vector_Object_Count: 19170

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: Geographic Coordinate System World Geodetic System WGS 1984
Ellipsoid_Name: World Geodetic System 1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: cat_po_19840325_20150523.shp
Entity_Type_Definition:

Esri polygon features representing Cat Island, Mississippi shorelines from 1984-2015. The SPCMSC created 268 individual date shapefiles that were subsequently combined into one shapefile.

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:

Enumerated_Domain:

Enumerated_Domain_Value: Polygon
Enumerated_Domain_Value_Definition: Shape of feature.
Enumerated_Domain_Value_Definition_Source: Esri

Attribute:

Attribute_Label: Date_
Attribute_Definition: Date of satellite image source.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain:

Date that the source image was collected in month, day, and year format.

Attribute:

Attribute_Label: Area_
Attribute_Definition: ???.
Attribute_Definition_Source: USGS or Esri?
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.90950381
Range_Domain_Maximum: 14342896.8

Attribute:

Attribute_Label: YYYYMMDD
Attribute_Definition:

Date that the source image was collected formatted as an 8-digit number representing the year, month, and day.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain:

Date formatted as an 8-digit number representing year, month, and day.

Attribute:

Attribute_Label: WXT32Dau
Attribute_Definition:

The predicted tide level, in meters relative to MLLW, at the Dauphin Island tide station at the time of image collection. These data were obtained from WXTide32 (www.wxtide32.com), a tide and current prediction program.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.26
Range_Domain_Maximum: 0.80

Attribute:

Attribute_Label: Landsat
Attribute_Definition: The Landsat satellite number.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition: Number of the Landsat satellite.
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition: Number of the Landsat satellite.
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition: Number of the Landsat satellite.
Enumerated_Domain_Value_Definition_Source: USGS

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Kristy Guy
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Fla.

Contact_Position: GIS/RS Analyst
Contact_Address:

Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Hours_of_Service: Monday-Friday, 9:00-5:00 Eastern Time

Resource_Description: Downloadable data - USGS Data Release
Distribution_Liability:

Although these data were processed successfully on a computer system at the USGS, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, firm, or product 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: ArcGIS shapefile

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-F7JQ0Z3R/data/cat_polys_combined_dates.zip

Fees: None if obtained online; otherwise prices vary.
Ordering_Instructions:

Publications are available from USGS Information Services, Box 25286, Federal Center, Denver, CO 80225-0046 (telephone: 1-888-ASK-USGS, e-mail: infoservices@usgs.gov).

Metadata_Reference_Information:

Metadata_Date: 20201013
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS
Contact_Person: Kristy Guy

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: None.
Metadata_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) St. Petersburg Coastal and Marine Science Center Coastal and Marine Geology Program as the originator of these data in future products or derivative research.

Metadata_Security_Information:

Metadata_Security_Classification_System: None.
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None.

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