National Assessment of Hurricane-Induced Coastal Erosion Hazards: Southeast Atlantic Salvo to Duck, North Carolina Mean (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: Kara S. Doran
Originator: Joseph W. Long
Originator: Jacquelyn R. Overbeck
Publication_Date: 20150325
Title:

National Assessment of Hurricane-Induced Coastal Erosion Hazards: Southeast Atlantic Salvo to Duck, North Carolina Mean (interpolated) Beach Slope Point Data

Geospatial_Data_Presentation_Form: vector digital data
Series_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F7M906Q6

Publication_Information:

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

Online_Linkage: https://doi.org/10.5066/F7M906Q6

Description:

Abstract:

The National Assessment of Coastal Change Hazards project derives features of beach morphology from lidar elevation data for the purpose of understanding and predicting storm impacts to our nation's coastlines. This dataset defines mean beach slopes along the United States Southeast Atlantic Ocean from Salvo to Duck, North Carolina for data collected at various times between 1996 and 2012.

Purpose:

To provide mean slope data between the endpoint locations of the Mean High Water and seaward-most dune toe elevations, interpolated to a 200 m alongshore resolution using a 400 m wide Hanning window. This dataset, NC_Mean_Slopes.txt and others associated with this project can be accessed online at https://doi.org/10.5066/F7M906Q6

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19961009
Ending_Date: 20121129

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: -75.77803244
East_Bounding_Coordinate: -75.461037
North_Bounding_Coordinate: 36.243400
South_Bounding_Coordinate: 35.414028

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:15d884a5-ff30-4a53-81d9-650a701b066c

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: Atlantic Ocean
Place_Keyword: North Carolina
Place_Keyword: Duck, North Carolina
Place_Keyword: Salvo, North Carolina

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: Kara 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 7 Version 6.1 (Build 7600) ; ESRI ArcGIS 10.0.4.4000; MATLAB R2011b

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. No additional checks for consistency were performed on this data.

Completeness_Report:

These data include beach and dune morphology in the form of mean beach slope.

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)

Publication_Date: 20000101
Title:

1996 Fall East Coast NOAA/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=1

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19961009
Ending_Date: 19961016

Source_Currentness_Reference: The date when lidar surveys were conducted.

Source_Citation_Abbreviation: NOAA96
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)

Publication_Date: 20000101
Title:

1997 Fall East 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=2

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19970915
Ending_Date: 19971002

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: NOAA97
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)

Publication_Date: 20000101
Title:

1998 Fall East 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=6

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19980907
Ending_Date: 2010630

Source_Currentness_Reference: The dates 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:

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

Publication_Date: 20000101
Title:

1999 Post Hurricane Dennis 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=60

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19990909
Ending_Date: 19990909

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: NOAA99a
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)

Publication_Date: 20000101
Title:

1999 Post Hurricane Floyd 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=61

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19990918
Ending_Date: 19990918

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: NOAA99b
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)

Publication_Date: 20000101
Title:

Fall 1999 East 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=8#

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19991006
Ending_Date: 19991104

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: NOAA99c
Source_Contribution:

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

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey (USGS)
Publication_Date: Unpublished material
Title:

September 16, 2003 USGS Experimental Advanced Airborne Research Lidar (EAARL) Survey

Type_of_Source_Media: Internal digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20030916
Ending_Date: 20030916

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: USGS03a
Source_Contribution:

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

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey (USGS)
Publication_Date: Unpublished material
Title:

September 21, 2003 USGS Experimental Advanced Airborne Research Lidar (EAARL) Survey

Type_of_Source_Media: Internal digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20030921
Ending_Date: 20030921

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: USGS03b
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: USACE04
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:

2005 US Army Corps of Engineers (USACE) National Coastal Mapping Program Topo/Bathy Lidar: Delaware, Maryland, New Jersey, New York, North Carolina and Virginia

Online_Linkage: ftp://coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/33

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20050824
Ending_Date: 20051126

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: USACE05
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:

2009 US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) Lidar: Currituck, Dare, and Hyde Counties, North Carolina

Online_Linkage:

ftp://coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/1069

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20090816
Ending_Date: 20090824

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: NOAAUSACE09
Source_Contribution:

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

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey (USGS)
Publication_Date: 2011
Title:

EAARL Coastal Topography--Cape Hatteras National Seashore, North Carolina, Post-Nor'Ida, 2009: Bare Earth

Online_Linkage: http://pubs.usgs.gov/ds/578/

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20091127
Ending_Date: 20091201

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: USGS09
Source_Contribution:

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

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey (USGS)
Publication_Date: 2013
Title:

Coastal Topography--Northeast Atlantic Coast, Post-Hurricane Sandy, 2012: Lidar point-cloud data (LAS)

Online_Linkage: http://pubs.usgs.gov/ds/765/

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20121105
Ending_Date: 20121129

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: USGS12
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 R2012b to a gridded domain that was rotated parallel to the shoreline and had a resolution of 10 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 morphology data are extracted from the elevation grid in MATLAB. Beach slopes were extracted from endpoint locations of the Mean High Water and dune toe elevations. The beach slopes were temporally averaged then interpolated to 200 m alongshore resolution by filtering with a 400 m wide Hanning window. 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" http://pubs.usgs.gov/of/2015/1053

Process_Date: 2011

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: 503

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: NC_Mean_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.

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: -75.77803244
Range_Domain_Maximum: -75.461037
Attribute_Units_of_Measure: Decimal Degrees

Attribute:

Attribute_Label: Latitude
Attribute_Definition:

Longitude of interpolated shoreline position in decimal degrees.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 36.243400
Range_Domain_Maximum: 35.414028
Attribute_Units_of_Measure: Decimal Degrees

Attribute:

Attribute_Label: slope
Attribute_Definition: Mean of beach slopes.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.009347
Range_Domain_Maximum: 0.128267
Attribute_Units_of_Measure: Radians

Attribute:

Attribute_Label: mean res err
Attribute_Definition: Mean residual error.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.000342
Range_Domain_Maximum: 0.044822
Attribute_Units_of_Measure: Radians

Attribute:

Attribute_Label: 95% confidence
Attribute_Definition: 95 percent confidence interval, equal to 2*mean_res_err.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.000683
Range_Domain_Maximum: 0.089643
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 Sourth
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-F7M906Q6/data/NC_beach_slopes/NC_Mean_slopes.txt

Access_Instructions: Data is accessible online at https://doi.org/10.5066/F7M906Q6

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/NC_Mean_Slopes_metadata.html>