Massachusetts 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: Justin J. Birchler
Originator: Joseph W. Long
Originator: Kathryn M. Weber
Publication_Date: 20161004
Title: Massachusetts Mean (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/F7B8568F

Publication_Information:

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

Online_Linkage: https://doi.org/10.5066/F7B8568F

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 mean beach slopes for Massachusetts for data collected at various times between 2000 and 2013.

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 meter (m) alongshore resolution using a 400-m wide Hanning window. This dataset, MA_Mean_Slopes.txt, and others associated with this project can be accessed online at https://doi.org/10.5066/F7B8568F.

Supplemental_Information:

The United States Geological Survey (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: 00LTS04, 05CNT06, 10CNT05, 11CNT05, 13CNT05.The FAN naming convention is as follows: 00LTS04 tells us the data were collected in 2000 for the Lidar Topographic Survey (LTS) study, and the data were collected during the fourth field activity for that study in that calendar year.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20001001
Ending_Date: 20140421

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: -70.9903
East_Bounding_Coordinate: -69.9288
North_Bounding_Coordinate: 42.8613
South_Bounding_Coordinate: 41.5401

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:d7f43254-a472-47d6-a56f-6e6ea9509bf0

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: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: SPCMSC
Theme_Keyword: coastal
Theme_Keyword: slope

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: hazards
Theme_Keyword: marine geology
Theme_Keyword: ocean sciences
Theme_Keyword: LIDAR
Theme_Keyword: topography
Theme_Keyword: digital elevation models

Theme:

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

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

Place:

Place_Keyword_Thesaurus: Common Geographic Areas
Place_Keyword: United States of America
Place_Keyword: Atlantic
Place_Keyword: Massachusetts

Access_Constraints: None
Use_Constraints:

Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The USGS requests to be acknowledged as originator 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 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 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 (m) 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:

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 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 vertical accuracy of lidar surveys is +/- 15 centimeters (cm). 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:

2000 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=11

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20000920
Ending_Date: 20001102

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: 00LTS04
Source_Contribution:

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

Source_Information:

Source_Citation:

Citation_Information:

Originator:

JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of eXpertise)

Publication_Date: 2009
Title:

2005 - 2007 US Army Corps of Engineers (USACE) Topo/Bathy Lidar: Maine, Massachusetts, and Rhode Island

Online_Linkage:

http://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=116

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20051111
Ending_Date: 20070806

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: 05CNT06
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:

JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of eXpertise)

Publication_Date: Unpublished material
Title:

2010 US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) Topobathy Lidar: Northeast (MA, ME, NH, RI)

Online_Linkage:

http://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=1174

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20100524
Ending_Date: 20100710

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: 10CNT05
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: United States Geological Survey (USGS)
Originator: Maine's Office of GIS (MEGIS)
Originator: Photo Science Inc. (PSI)
Publication_Date: 201308
Title:

2011 U.S. Geological Survey Topographic LiDAR: LiDAR for the North East

Online_Linkage:

http://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=2524

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20101220
Ending_Date: 20111211

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: 11CNT05
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: United States Geological Survey (USGS)
Originator: Woolpert
Publication_Date: 20150708
Title: 2013-2014 U.S. Geological Survey CMGP LiDAR: Post Sandy
Online_Linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=4914

Type_of_Source_Media: Online digital data
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20130806
Ending_Date: 20140421

Source_Currentness_Reference: The dates when lidar surveys were conducted.

Source_Citation_Abbreviation: 13CNT05
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 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", available at http://pubs.usgs.gov/of/2015/1053

Process_Date: 2016

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: 1698

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: MA_Mean_Slopes.txt
Entity_Type_Definition:

Lidar-derived beach slopes. 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: -70.9903
Range_Domain_Maximum: -69.9288
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: 41.5401
Range_Domain_Maximum: 42.8613
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: 0.0112
Range_Domain_Maximum: 0.3767
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: 0.000703
Range_Domain_Maximum: 0.1691
Attribute_Units_of_Measure: Radians

Attribute:

Attribute_Label: 95_confidence
Attribute_Definition: 95 percent confidence interval, equal to 2 x (mean_res_err).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0014
Range_Domain_Maximum: 0.3381
Attribute_Units_of_Measure: Radians

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS
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

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

Resource_Description: MA_Mean_slopes.txt
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: ASCII
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-F7B8568F/data/MA_Mean_Slopes.zip

Fees: none

Metadata_Reference_Information:

Metadata_Date: 20201013
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey (USGS)
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

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/MA_Mean_Slopes_metadata.html>