Metadata: Identification_Information: Citation: Citation_Information: Originator: Kara S. Doran Originator: Hilary F. Stockdon Originator: Justin J. Birchler Originator: Matthew W. Hardy Publication_Date: 20191210 Title: 1998 Atlantic coast NASA/NOAA/USGS Spring ATM Lidar-Derived Dune Crest, Toe and Shoreline Geospatial_Data_Presentation_Form: tabular digital data Series_Information: Series_Name: U.S. Geological Survey Data Release Issue_Identification: doi:10.5066/F7GF0S0Z Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/F7GF0S0Z Description: Abstract: The Storm-Induced Coastal Change Hazards component of the National Assessment of Coastal Change Hazards project focuses on understanding the magnitude and variability of extreme storm impacts on sandy beaches. 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 1998 Atlantic Coast National Aeronautics and Space Administration (NASA), National Oceanic and Atmospheric Administration (NOAA), and U.S. Geological Survey (USGS) Airborne Topographic Mapper (ATM) 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 USGS field activity number (FAN) 98LTS02; additional survey details are available at http://cmgds.marine.usgs.gov/fan_info.php?fan=98LTS02. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19980403 Ending_Date: 19980403 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -75.541953 East_Bounding_Coordinate: -75.081081 North_Bounding_Coordinate: 38.337083 South_Bounding_Coordinate: 37.762649 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:c5de5412-4ef2-433f-a8d5-f84386f39d90 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: 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 Place: Place_Keyword_Thesaurus: None Place_Keyword: United States of America Place_Keyword: Atlantic Ocean Place_Keyword: Maryland Place_Keyword: Virginia Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. 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: Hilary Stockdon 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: 727-502-8074 Contact_Facsimile_Telephone: 727-502-8001 Contact_Electronic_Mail_Address: hstockdon@usgs.gov Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7600); Esri ArcGIS 10.0.4.4000; MATLAB 2014a Data_Quality_Information: Logical_Consistency_Report: Morphologic features are QA/QC'd in ArcMap and edited in MATLAB, if needed. 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. 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. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: National Aeronautics & Space Administration (NASA) Originator: National Oceanic & Atmospheric Administration (NOAA) Originator: United States Geological Survey (USGS) Publication_Date: 20000101 Title: 1998 NASA/NOAA/USGS Spring ATM Lidar: Atlantic coast (MD, VA) Point Cloud files with Orthometric Vertical Datum North American Vertical Datum of 1988 (NAVD88) using GEOID12B Online_Linkage: https://coast.noaa.gov/htdata/lidar1_z/geoid12b/data/5/ Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19980403 Ending_Date: 19980403 Source_Currentness_Reference: The date when lidar surveys were collected. Source_Citation_Abbreviation: 98LTS02 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 2014a 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: http://pubs.usgs.gov/of/2012/1084/. Process_Date: Not Complete 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: 23616 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: 98LTS02_morphology.csv Entity_Type_Definition: Dune crest, toe and shoreline, beach width and mean beach slope. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: state Attribute_Definition: State segment file identification (ID) number. See data dictionary for details of the numbering system. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 12 Range_Domain_Maximum: 13 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: 88 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: 796 Attribute: Attribute_Label: lon Attribute_Definition: Feature location longitude (WGS84). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -75.541953 Range_Domain_Maximum: -75.081081 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: 37.762649 Range_Domain_Maximum: 38.337083 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: -438.7573 Range_Domain_Maximum: 155.6748 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: 0.34 Range_Domain_Maximum: 7.3117 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: 0.0003 Range_Domain_Maximum: 19.9709 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 (NAVD88). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0224 Range_Domain_Maximum: 1.7585 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: 3.7506 Range_Domain_Maximum: 183.7325 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: 0.0073 Range_Domain_Maximum: 0.5024 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, DT, SL Enumerated_Domain_Value_Definition: Dune Crest, Dune Toe, Shoreline Enumerated_Domain_Value_Definition_Source: USGS Distribution_Information: Distributor: 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 Contact_Voice_Telephone: 727-502-8117 Contact_Facsimile_Telephone: 727-502-8001 Contact_Electronic_Mail_Address: kdoran@usgs.gov 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-F7GF0S0Z/data/98LTS02_morphology.zip Fees: none Metadata_Reference_Information: Metadata_Date: 20240401 Metadata_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 Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time