National Assessment of Hurricane-Induced Coastal Erosion Hazards: Gulf of Mexico Bradenton Beach to Clearwater Beach, Florida Raw (non-interpolated) Beach Slope Point Data

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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: Jacquelyn R. Overbeck
Originator: Kara S. Doran
Publication_Date: 20150425
Title:

National Assessment of Hurricane-Induced Coastal Erosion Hazards: Gulf of Mexico Bradenton Beach to Clearwater Beach, Florida Raw (non-interpolated) Beach Slope Point Data

Geospatial_Data_Presentation_Form: tabular digital data
Series_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F7XK8CK2

Publication_Information:

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

Online_Linkage: https://doi.org/10.5066/F7XK8CK2

Description:

Abstract:

The National Assessment of Coastal Change Hazards project derives beach morphology features from lidar elevation data for the purpose of understanding and predicting storm impacts to our nation's coastlines. This dataset defines beach slopes along the United States Southeast Gulf of Mexico from Bradenton Beach to Clearwater Beach, Florida for data collected at various times between 1998 and 2010.

Purpose:

To provide raw, non-interpolated endpoint slope data between the location of the Mean High Water and seaward-most dune toe elevations. This dataset, GFL_Raw_Slopes.txt, and others associated with this project can be accessed online at https://doi.org/10.5066/F7XK8CK2.

Supplemental_Information:

The USGS Saint Petersburg Coastal and Marine Science Center (SPCMSC) - St. Petersburg, Fla., assigns a unique identifier (called a Field Activity Number, or FAN) to each cruise or field activity. The following FANs are associated with this activity: 98LTS05, 04CNT01, 04CNT05, 07CNT01, 06CNT03, and 10CNT08.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19981029
Ending_Date: 20100722

Currentness_Reference: Ground condition

Status:

Progress: complete
Maintenance_and_Update_Frequency:

As needed. Data are updated when new lidar surveys are available.

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -82.851941
East_Bounding_Coordinate: -82.689567
North_Bounding_Coordinate: 28.048860
South_Bounding_Coordinate: 27.439916

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:1c89f352-e494-4752-a3f1-20921ea985df

Theme:

Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: St. Petersburg Coastal and Marine Science Center
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: SPCMSC

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: coastal
Theme_Keyword: slope
Theme_Keyword: environment

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: distributions
Theme_Keyword: bathymetry and elevation

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords
Theme_Keyword: altimetry
Theme_Keyword: topographic mapping

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: LIDAR
Theme_Keyword: topography
Theme_Keyword: digital elevation models

Place:

Place_Keyword_Thesaurus: General
Place_Keyword: United States of America
Place_Keyword: Gulf of Mexico
Place_Keyword: Florida
Place_Keyword: Bradenton Beach, Florida
Place_Keyword: Clearwater Beach, Florida
Place_Keyword: Tampa Bay, Florida

Access_Constraints: None
Use_Constraints:

The U.S. Geological Survey requests to be acknowledged as originators of the data in future products or derivative research.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Jacquelyn R. Overbeck

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: 727-502-8104
Contact_Facsimile_Telephone: 727-502-8001
Contact_Electronic_Mail_Address: joverbeck@usgs.gov

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7600); ESRI ArcGIS 10.2.2.4000; MATLAB R2014b

Data_Quality_Information:

Logical_Consistency_Report:

Data gaps exist where there are no sandy shorelines (such as over inlets, marshes, or rocky coasts). For each 400-meter window width, data will be given a null value if greater than 50% of points are missing. For inlets narrower than the 400 m window, only slopes associated with the data on either side of the inlet were computed. No additional checks for consistency were performed on this data.

Completeness_Report:

These data include beach and dune morphology in the form of raw beach slopes.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: Horizontal accuracy was not estimated.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Vertical accuracy for beach and dune morphology (dune crest and toe elevation) data is dependent on the positional accuracy of the lidar data. Estimated accuracy of lidar surveys is +/- 15 centimeters. However, vertical accuracies may vary based on the type of terrain (for example, inaccuracies may increase as slope increases or with the presence of extremely dense vegetation) and the accuracy of the GPS and aircraft-attitude measurements.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)

Originator: United States Geological Survey (USGS)
Originator: National Aeronautics and Space Administration (NASA)
Publication_Date: 20000101
Title:

1998 Fall Gulf Coast NOAA/USGS/NASA Airborne Lidar Assessment of Coastal Erosion (ALACE) Project for the US Coastline

Online_Linkage:

http://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=22

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19981029
Ending_Date: 19981109

Source_Currentness_Reference: The date when lidar surveys were conducted.

Source_Citation_Abbreviation: NOAA98
Source_Contribution:

Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX)

Publication_Date: 20141114
Title:

2004 US Army Corps of Engineers (USACE) Topo/Bathy Lidar: Alabama, Florida, Mississippi and North Carolina

Online_Linkage: ftp://coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/19

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20040401
Ending_Date: 20040925

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: USACE04a
Source_Contribution:

Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX)

Publication_Date: 20141114
Title:

2004 US Army Corps of Engineers (USACE) Post-Hurricane Ivan Topo/Bathy Lidar: Alabama, Florida

Online_Linkage: ftp://coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/37

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20041101
Ending_Date: 20041231

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: USACE04b
Source_Contribution:

Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX)

Publication_Date: 20141114
Title:

2006 United States Army Corps of Engineers (USACE) Post Hurricane Wilma Lidar: Hurricane Pass to Big Hickory Pass, FL

Online_Linkage: ftp://coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/44

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20060528
Ending_Date: 20060610

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: USACE06
Source_Contribution:

Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Florida Division of Emergency Management (FDEM)
Originator:

Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)

Publication_Date: 20141209
Title:

2007 Florida Division of Emergency Management (FDEM) Lidar Project: Southwest Florida

Online_Linkage:

ftp://coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/529

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20070618
Ending_Date: 20070830

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: FDEM07
Source_Contribution:

Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)

Originator:

Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX)

Publication_Date: 20141114
Title:

2010 US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) Lidar: Gulf Coast of Florida

Online_Linkage:

ftp://coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/1073

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20100620
Ending_Date: 20100722

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: USACE10
Source_Contribution:

Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.

Process_Step:

Process_Description:

For dune morphology data: Elevation data from lidar surveys were interpolated in MATLAB R2014b to a gridded domain that was rotated parallel to the shoreline and had a resolution of 10 m in the alongshore 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 morphology data are extracted from the elevation grid in MATLAB. Beach slopes were extracted between endpoint locations of the Mean High Water and dune toe elevations. More details on the methodology can be found in the USGS Open-File Report, "A method for determining average beach slope and beach slope variability for U.S. sandy coastlines", available at http://pubs.usgs.gov/of/2015/1053

Process_Date: 20150330

Process_Step:

Process_Description:

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

Process_Date: 20170124
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: Point
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity Point
Point_and_Vector_Object_Count: 4936

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: 298.257223563

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: GFL_Raw_Slopes.txt
Entity_Type_Definition:

Lidar-derived beach slope. Measured as the endpoint slope between the locations of dune toe and Mean High Water elevation. Values of -999 represent “no data” values. Lidar-derived attributes collected over multiple days include “co” in the Attribute_Label. This abbreviation, combined days, is shortened to keep similar naming structure as data collected on a single day.

Entity_Type_Definition_Source: USGS

Attribute:

Attribute_Label: Longitude
Attribute_Definition:

Longitude of interpolated shoreline position in decimal degrees.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -82.851941
Range_Domain_Maximum: -82.689567
Attribute_Units_of_Measure: Decimal Degrees

Attribute:

Attribute_Label: Latitude
Attribute_Definition: Latitude of interpolated shoreline position in decimal degrees.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 27.439916
Range_Domain_Maximum: 28.04886
Attribute_Units_of_Measure: Decimal Degrees

Attribute:

Attribute_Label: slope199810co
Attribute_Definition:

Raw beach slopes calculated using October 1998 lidar-derived elevation data.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.003297
Range_Domain_Maximum: 0.221875
Attribute_Units_of_Measure: Radians

Attribute:

Attribute_Label: slope200404co
Attribute_Definition:

Raw beach slopes calculated using April 2004 lidar-derived elevation data.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.004454
Range_Domain_Maximum: 0.098482
Attribute_Units_of_Measure: Radians

Attribute:

Attribute_Label: slope200411co
Attribute_Definition:

Raw beach slopes calculated using November 2011 lidar-derived elevation data.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.006052
Range_Domain_Maximum: 0.124467
Attribute_Units_of_Measure: Radians

Attribute:

Attribute_Label: slope200606co
Attribute_Definition:

Raw beach slopes calculated using June 2006 lidar-derived elevation data.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.002905
Range_Domain_Maximum: 0.132051
Attribute_Units_of_Measure: Radians

Attribute:

Attribute_Label: slope200707co
Attribute_Definition:

Raw beach slopes calculated using July 2007 lidar-derived elevation data.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.000735
Range_Domain_Maximum: 0.145526
Attribute_Units_of_Measure: Radians

Attribute:

Attribute_Label: slope201006co
Attribute_Definition:

Raw beach slopes calculated using June 2006 lidar-derived elevation data.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.004468
Range_Domain_Maximum: 0.18382
Attribute_Units_of_Measure: Radians

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey (USGS)
Contact_Person: Jacquelyn R. Overbeck

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: 727-502-8104
Contact_Facsimile_Telephone: 727-502-8001
Contact_Electronic_Mail_Address: joverbeck@usgs.gov

Distribution_Liability:

Although these data have been 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: text file
File_Decompression_Technique: none

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-F7XK8CK2/data/GFL_beach_slopes/GFL_Raw_slopes.txt

Access_Instructions: Data is accessible online at https://doi.org/10.5066/F7XK8CK2

Fees: none

Metadata_Reference_Information:

Metadata_Date: 20201013
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey (USGS)
Contact_Person: Jacquelyn R. Overbeck

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: 727-502-8104
Contact_Facsimile_Telephone: 727-502-8001
Contact_Electronic_Mail_Address: joverbeck@usgs.gov

Metadata_Standard_Name: FGDC 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/GFL_Raw_Slopes_metadata.html>