Metadata: Identification_Information: Citation: Citation_Information: Originator: Kara S. Doran Originator: Justin J. Birchler Originator: Joseph W. Long Originator: Karen L. M. Morgan Publication_Date: 20161027 Title: New Jersey 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/F7C24TJB Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/F7C24TJB 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 New Jersey for data collected at various times between 2007 and 2014. 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 alongshore resolution using a 400-meter wide Hanning window using Matlab. This dataset, NJ_Mean_Slopes.txt, and others associated with this project can be accessed online at https://doi.org/10.5066/F7C24TJB 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: 07CCH02, 10CNT11, 12LTS03, 12LTS04, 14CNT01 Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070426 Ending_Date: 20140522 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: -74.9716 East_Bounding_Coordinate: -73.9712 North_Bounding_Coordinate: 40.4802 South_Bounding_Coordinate: 38.9144 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:8cbd04e6-e8e5-46c6-8b4e-f03f96ce3633 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_Keyword: environment Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: elevation Theme_Keyword: oceans Theme_Keyword: geoscientificinformation 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: None Place_Keyword: United States of America Place_Keyword: Atlantic Ocean Place_Keyword: New Jersey 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 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 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 mean 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: United States Geological Survey (USGS) Publication_Date: 2008 Title: EAARL Coastal Topography--Northeast Barrier Islands 2007: Bare Earth Online_Linkage: http://pubs.usgs.gov/ds/398/ Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070425 Ending_Date: 20070430 Source_Currentness_Reference: The dates when lidar surveys were conducted. Source_Citation_Abbreviation: 07CCH02 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: 20160523 Title: 2010 US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) Lidar: New Jersey (Topo) Online_Linkage: https://coast.noaa.gov/htdata/lidar1_z/geoid12a/data/1133/ Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20100828 Ending_Date: 20100902 Source_Currentness_Reference: The dates when lidar surveys were conducted. Source_Citation_Abbreviation: 10CNT11 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 Publication_Date: 2014 Title: EAARL-B coastal topography: eastern New Jersey, Hurricane Sandy, 2012: first surface Online_Linkage: https://pubs.er.usgs.gov/publication/ds767 Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20121026 Ending_Date: 20121105 Source_Currentness_Reference: The dates when lidar surveys were conducted. Source_Citation_Abbreviation: 12LTS03 and 12LTS04 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: 20151218 Title: 2014 NOAA Post Hurricane Sandy Topobathymetric LiDAR Mapping for Shoreline Mapping Online_Linkage: https://coast.noaa.gov/htdata/lidar1_z/geoid12b/data/4800/ Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20140108 Ending_Date: 20140522 Source_Currentness_Reference: The dates when lidar surveys were conducted. Source_Citation_Abbreviation: 14CNT01 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 were 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: 1093 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: NJ_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: -74.9716 Range_Domain_Maximum: -73.9712 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: 38.9144 Range_Domain_Maximum: 40.4802 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: 0.0036 Range_Domain_Maximum: 0.2079 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: 0.000297 Range_Domain_Maximum: 0.0949 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: 0.000593 Range_Domain_Maximum: 0.1899 Attribute_Units_of_Measure: Radians Distribution_Information: Distributor: 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 Contact_Voice_Telephone: 727-502-8117 Contact_Facsimile_Telephone: 727-502-8001 Contact_Electronic_Mail_Address: kdoran@usgs.gov Resource_Description: NJ_Mean_slopes.txt 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_Decompression_Technique: none Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-F7C24TJB/data/NJ_Mean_slopes.zip Access_Instructions: Data is accessible online at https://doi.org/10.5066/F7C24TJB 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