2020 Post-Sally Gulf Coast (AL, FL, MS) USACE Lidar-Derived Dune Crest, Toe and Shoreline

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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: Kara S. Doran
Originator: Justin J. Birchler
Originator: Joshua M. Pardun
Publication_Date: 20260115
Title:

2020 Post-Sally Gulf Coast (AL, FL, MS) USACE Lidar-Derived Dune Crest, Toe and Shoreline

Geospatial_Data_Presentation_Form: tabular digital data
Larger_Work_Citation:

Citation_Information:

Originator: Kara S. Doran
Originator: Joseph W. Long
Originator: Justin J. Birchler
Originator: Owen T. Brenner
Originator: Matthew W. Hardy
Originator: Karen L.M. Morgan
Originator: Hilary F. Stockdon
Originator: Miguel Loubriel Torres
Publication_Date: 20170805
Title:

Lidar-derived Beach Morphology (Dune Crest, Dune Toe, and Shoreline) for U.S. Sandy Coastlines

Edition: 7.0
Series_Information:

Series_Name: U.S. Geological Survey data release
Issue_Identification: doi:10.5066/F7GF0S0Z

Publication_Information:

Publication_Place: St. Petersburg, Florida
Publisher:

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

Online_Linkage: https://doi.org/10.5066/F7GF0S0Z

Description:

Abstract:

The storm-induced Coastal Change Hazards component of the Technical Capabilities and Applications project focuses on understanding the magnitude and variability of extreme storm impacts on sandy beaches. Light detection and ranging (lidar)-derived beach morphologic features such as dune crest, toe, and shoreline help define the vulnerability of the beach to storm impacts. This dataset defines the elevation and position of the seaward-most dune crest and toe and the mean high-water shoreline derived from the 2020 Post-Sally United States Army Corps of Engineers (USACE) Gulf Coast lidar survey. Beach width is included and is defined as the distance between the dune toe and shoreline along a cross-shore profile. The beach slope is calculated using this beach width and the elevation of the shoreline and dune toe.

Purpose:

To provide data on the morphology of U.S. sandy beaches. Data were collected during U.S. Geological Survey (USGS) field activity number (FAN) 2020-304-DD; additional survey details are available on the Coastal and Marine Geoscience Data Systems (CMGDS), at https://cmgds.marine.usgs.gov/services/activity.php?fan=2020-304-DD.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20200922
Ending_Date: 20201013

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -88.986580
East_Bounding_Coordinate: -85.169948
North_Bounding_Coordinate: 30.398289
South_Bounding_Coordinate: 29.657028

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:c3d76075-601c-4f6d-a88c-7af0d5d03ddc

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: St. Petersburg Coastal and Marine Science Center
Theme_Keyword: SPCMSC
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP

Theme:

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

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: hazards
Theme_Keyword: marine geology
Theme_Keyword: ocean sciences
Theme_Keyword: coastal processes
Theme_Keyword: lidar
Theme_Keyword: geomorphology
Theme_Keyword: hurricanes

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Gulf of America
Place_Keyword: Mississippi
Place_Keyword: Alabama
Place_Keyword: Florida

Access_Constraints:

No access constraints. Please see 'Distribution Information' for details.

Use_Constraints:

These data are marked with a Creative Commons CC0 1.0 Universal License. These data are in the public domain and do not have any use constraints. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Kara S. Doran

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: Saint Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: UNITED STATES

Contact_Voice_Telephone: 727-502-8117
Contact_Facsimile_Telephone: 727-502-8001
Contact_Electronic_Mail_Address: kdoran@usgs.gov

Native_Data_Set_Environment:

Microsoft Windows 11 Version 23H2; ArcGIS Pro 3.5.5; MATLAB 2024b

Cross_Reference:

Citation_Information:

Originator:

Stockdon, H.F., Doran, K.J., Thompson, D.M., Sopkin, K.L., Plant, N.G., and Sallenger, A.H.

Publication_Date: 20120501
Title:

National Assessment of Hurricane-Induced Coastal Erosion Hazards: Gulf of Mexico

Geospatial_Data_Presentation_Form: vector digital data
Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2012-1084

Publication_Information:

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

Online_Linkage: https://doi.org/10.3133/ofr20121084

Data_Quality_Information:

Logical_Consistency_Report:

Morphologic features were reviewed for quality assurance/quality control (QA/QC) in ArcGIS Pro and edited in MATLAB, as needed. Gaps and anomalies in the data result from data coverage or QA/QC procedures, which are detailed in Stockdon and others (2012).

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.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Horizontal accuracy is estimated for shorelines only by calculating the 95% confidence interval of the regression line through the shoreline position and is dependent on foreshore slope, scatter in the lidar data points, and specified lidar point uncertainty. Horizontal coordinates were projected to the World Geodetic System of 1984 (WGS84) coordinate system with a resolution of 10 meters (m) in the longshore direction and 2.5 m in the cross-shore direction.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Vertical accuracy is determined for each dune crest and toe value based upon the scatter of data in the lidar grid cell. Vertical coordinates were projected to the North American Vertical Datum of 1988 (NAVD88) coordinates system with a resolution of 10 centimeters.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: United States Army Corps of Engineers)
Publication_Date: 2020
Title:

2020 USACE NCMP Post Sally Topobathy Lidar: Gulf Coast (AL, FL, MS)

Online_Linkage: https://www.fisheries.noaa.gov/inport/item/64384/

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20200922
Ending_Date: 20201013

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: 2020-304-DD
Source_Contribution:

A lidar survey that was used to estimate dune morphology variables.

Process_Step:

Process_Description:

Elevation data points from the lidar survey were interpolated in MATLAB 2024b to a gridded domain (segment) that was rotated parallel to the shoreline and had a resolution of 10 meters (m) in the longshore direction and 2.5 m in the cross-shore direction. The interpolation method applies spatial filtering with a Hanning window that is twice as wide as the grid resolution. Dune crest, toe and shoreline are extracted from the elevation grid in MATLAB every 10 m alongshore (each grid row is a profile). For details on feature extraction see: Stockdon and others (2012). The dataset was then converted to a comma-separated values file (.csv) for publication in this data release (Doran and others, 2017).

Source_Used_Citation_Abbreviation: 2020-304-DD
Process_Date: 20260115
Source_Produced_Citation_Abbreviation: 2020-304-DD_morphology.csv

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 125109

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0197843295
Longitude_Resolution: 0.0229959585
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D WGS 1984
Ellipsoid_Name: WGS 1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.2572235

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.0001
Altitude_Distance_Units: meter
Altitude_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: 2020-304-DD_morphology.csv
Entity_Type_Definition:

Dune crest, toe and shoreline, beach width and mean beach slope. See the accompanying data dictionary (Data dictionary for lidar.docx) for more details about the numbering system for the state, segment, and profile fields.

Entity_Type_Definition_Source: USGS

Attribute:

Attribute_Label: state
Attribute_Definition: State segment file identification (ID) number.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4
Range_Domain_Maximum: 6

Attribute:

Attribute_Label: segment
Attribute_Definition: Segment ID number.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 47

Attribute:

Attribute_Label: profile
Attribute_Definition:

Grid row number corresponding to a cross-shore profile location.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 2706

Attribute:

Attribute_Label: lon
Attribute_Definition: Feature location longitude (WGS84).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -88.986580
Range_Domain_Maximum: -85.169948
Attribute_Units_of_Measure: decimal degrees

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 999
Enumerated_Domain_Value_Definition: Null value
Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: lat
Attribute_Definition: Feature location latitude (WGS84).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 29.657028
Range_Domain_Maximum: 30.398289
Attribute_Units_of_Measure: decimal degrees

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 999
Enumerated_Domain_Value_Definition: Null value
Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: x
Attribute_Definition: Cross-shore feature location.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -1125.4108
Range_Domain_Maximum: 1238.4738
Attribute_Units_of_Measure: meters

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 999
Enumerated_Domain_Value_Definition: Null value
Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: z
Attribute_Definition:

Feature elevation (NAVD88). For shorelines, it is the mean high-water elevation.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.23
Range_Domain_Maximum: 15.4713
Attribute_Units_of_Measure: meters

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 999
Enumerated_Domain_Value_Definition: Null value
Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: x_err
Attribute_Definition:

95% confidence interval for the cross-shore shoreline position (NAVD88).

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 19.2005
Attribute_Units_of_Measure: meters

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 999
Enumerated_Domain_Value_Definition: Null value
Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: z_err
Attribute_Definition: Root mean squared vertical error of dune crest or toe (NAVD88).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0089
Range_Domain_Maximum: 3.1156
Attribute_Units_of_Measure: meters

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 999
Enumerated_Domain_Value_Definition: Null value
Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: beach_width
Attribute_Definition: Distance between dune toe and shoreline (NAVD88).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4.8955
Range_Domain_Maximum: 588.5541
Attribute_Units_of_Measure: meters

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 999
Enumerated_Domain_Value_Definition: Null value
Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: slope
Attribute_Definition:

Mean beach slope calculated between dune toe and shoreline (NAVD88).

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0011
Range_Domain_Maximum: 0.2384
Attribute_Units_of_Measure: radians

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 999
Enumerated_Domain_Value_Definition: Null value
Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: feature_type
Attribute_Definition: An identifier for the type of feature in the table entry.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: DC
Enumerated_Domain_Value_Definition: Dune Crest
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: DT
Enumerated_Domain_Value_Definition: Dune Toe
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SL
Enumerated_Domain_Value_Definition: Shoreline
Enumerated_Domain_Value_Definition_Source: USGS

Overview_Description:

Entity_and_Attribute_Overview:

The detailed attribute descriptions for the state, segment, and profile fields are included in an accompanying data dictionary (Data dictionary for lidar.docx). These metadata are not complete without this file.

Entity_and_Attribute_Detail_Citation:

The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

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

Contact_Person: USGS SPCMSC Data Management

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: Saint Petersburg
State_or_Province: FL
Postal_Code: 33701

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov

Resource_Description: 2020-304-DD_morphology.csv
Distribution_Liability:

Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. 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: comma-delimited text
File_Decompression_Technique:

The data download file is compressed and must be unzipped using software such as WinZip, 7zip, Peazip or pkUnzip before use.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-F7GF0S0Z/data/2020-304-DD_morphology.zip

Fees: none

Metadata_Reference_Information:

Metadata_Date: 20260115
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

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

Contact_Person: USGS SPCMSC Data Management

Contact_Address:

Address_Type: mailing and physical
Address: 600 4th Street South
City: Saint Petersburg
State_or_Province: FL
Postal_Code: 33701

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov

Metadata_Standard_Name: Content Standard 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/spcmsc/2020-304-DD_morphology_metadata.html>