Metadata: Identification_Information: Citation: Citation_Information: Originator: Justin J. Birchler Originator: Kara S. Doran Originator: Joseph W. Long Originator: Heather A. Schreppel Originator: Hilary F. Stockdon Publication_Date: 20251117 Title: Extratropical Storm March 2018 Assessment of Potential Coastal Change Impacts: 0800 AM EST FRI MAR 02 2018 Edition: 2.0 Geospatial_Data_Presentation_Form: vector digital data Larger_Work_Citation: Citation_Information: Originator: Kara S. Doran Originator: Justin J. Birchler Originator: Heather A. Schreppel Originator: Hilary F. Stockdon Originator: David M. Thompson Publication_Date: 20190619 Title: Storm-Induced Coastal Change Forecasts: Archive of Individual Storm Events Edition: 2.0 Series_Information: Series_Name: U.S. Geological Survey data release Issue_Identification: doi:10.5066/P9Z362BC Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9Z362BC Description: Abstract: This dataset defines storm-induced coastal erosion hazards for the North Carolina, Virginia, Maryland, Delaware, New Jersey, New York, Rhode Island, Massachusetts, New Hampshire and Maine coastline. The analysis was based on a storm-impact scaling model that used observations of beach morphology combined with sophisticated hydrodynamic models to predict how the coast would respond to the direct landfall of an Extratropical Storm in March 2018. Storm-induced water levels, due to both surge and waves, were compared to beach and dune elevations to determine the probabilities of the three types of coastal change: collision (dune erosion), overwash, and inundation. All hydrodynamic and morphologic variables are included in this dataset. Purpose: To provide data on the probability of storm-induced coastal erosion hazards for the North Carolina, Virginia, Maryland, Delaware, New Jersey, New York, Rhode Island, Massachusetts, New Hampshire and Maine coast for the March 2018 Noreaster. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20180302 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned, however future updates and post-storm analyses are anticipated. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -78.54695 East_Bounding_Coordinate: -69.929116 North_Bounding_Coordinate: 43.56114 South_Bounding_Coordinate: 33.844155 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:9e1ec3af-1dfb-4484-94ea-739274ebfeab 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: Extratropical Storm March 2018 Theme_Keyword: Noreaster Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: elevation Theme_Keyword: environment Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: hazards Theme_Keyword: marine geology Theme_Keyword: ocean sciences Theme_Keyword: coastal processes Theme_Keyword: erosion Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: distributions Theme_Keyword: bathymetry and elevation Theme_Keyword: physical habitats and geomorphology Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords Theme_Keyword: effects of coastal change Theme_Keyword: shoreline accretion Theme_Keyword: shoreline erosion Theme_Keyword: storm erosion Theme_Keyword: topographic mapping Theme_Keyword: hurricanes and typhoons Place: Place_Keyword_Thesaurus: Geographic Names Information System Place_Keyword: United States of America Place_Keyword: North Carolina Place_Keyword: Virginia Place_Keyword: Maryland Place_Keyword: Delaware Place_Keyword: New Jersey Place_Keyword: New York Place_Keyword: Rhode Island Place_Keyword: Massachusetts Place_Keyword: New Hampshire Place_Keyword: Maine Access_Constraints: No access constraints. Please see 'Distribution Information' for details. Use_Constraints: These data are marked with a Creative Commons CC0 1.0 Universal License. These data are in the public domain and do not have any use constraints. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. 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: 727-502-8182 Contact_Electronic_Mail_Address: hstockdon@usgs.gov Data_Set_Credit: The predicted elevations of storm surge were extracted from the National Oceanic and Atmospheric Administration's (NOAA) Sea, Lake, and Overland Surges from Hurricanes (SLOSH) model, which has been employed by NOAA in inundation risk studies and operational storm surge forecasting. Wave runup and setup conditions were generated using NOAA's WaveWatch III model. Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7600); Esri ArcGIS 10.0.4.4000 Data_Quality_Information: Logical_Consistency_Report: No additional checks for consistency were performed on this data. Completeness_Report: This dataset includes dune morphology and hurricane hydrodynamic data used to generate probabilities of hurricane-induced erosion, elevation data from lidar surveys are not included. Measurements were collected approximately every 10 meters (m) and summarized to 1-kilometer (km) segments. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Horizontal accuracy was not estimated. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Vertical accuracy for hydrodynamic measurements (surge, setup, and runup) is dependent on input data. SLOSH model accuracy is estimated to be +/- 20 percent of the calculated value. No other accuracy checks were performed. Vertical accuracy for dune morphology (dune crest and toe elevation) data is dependent on the positional accuracy of the lidar data. Estimated accuracy of lidar surveys are +/- 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), the accuracy of the global positioning system (GPS), and aircraft-attitude measurements. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: National Weather Service, National Oceanic and Atmospheric Administration Publication_Date: 20180302 Title: Extratropical Surge and Tide Operational Forecast System Online_Linkage: https://www.opc.ncep.noaa.gov/estofs/estofs_surge_info.shtml Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20180302 Source_Currentness_Reference: The date when web page was last modified. Source_Citation_Abbreviation: ESTOFS Source_Contribution: Data provides anticipated water levels during the next 4 days following 20180302. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Weather Service Environmental Modeling Center Publication_Date: 20180302 Title: NOAA Wavewatch III Online_Linkage: https://polar.ncep.noaa.gov/waves/ Type_of_Source_Media: Type_of_Source_Media Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20180302 Source_Currentness_Reference: The date when the model was run. Source_Citation_Abbreviation: WW3 Source_Contribution: Model that was used to estimate wave setup and runup conditions for an Extratropical Storm in March 2018. Source_Information: Source_Citation: Citation_Information: Originator: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Geodetic Survey (NGS), Remote Sensing Division Publication_Date: 20160523 Title: 2014 NOAA Post Hurricane Sandy Topobathymetric LiDAR Mapping for Shoreline Mapping Other_Citation_Details: Geographic Coverage: SC (Winyah Bay to SC/NC border), NC, VA, MD, DE, NJ, NY 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: 20140727 Source_Currentness_Reference: The date when lidar surveys were collected. Source_Citation_Abbreviation: NOAA 2014 SC-NY Source_Contribution: A lidar survey that 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), United States Geological Survey (USGS), Coastal and Marine Geology Program (CMGP) Publication_Date: 20160523 Title: 2013-2014 U.S. Geological Survey CMGP LiDAR: Post Sandy (MA, NH, RI) Other_Citation_Details: Geographic Coverage: RI, MA, NH Online_Linkage: ftp://coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12b/data/4914/ 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: 20131116 Ending_Date: 20141227 Source_Currentness_Reference: The date when lidar surveys were collected. Source_Citation_Abbreviation: USACE Northeast 2013 Source_Contribution: A lidar survey that was used to estimate dune morphology variables. Source_Information: Source_Citation: Citation_Information: Originator: USACE Publication_Date: 201408 Title: 2010 US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) Topobathy Lidar: Northeast (MA, ME, NH, RI) Other_Citation_Details: Geographic Coverage: ME Online_Linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=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 date when lidar surveys were collected. Source_Citation_Abbreviation: USACE Northeast 2010 Source_Contribution: A lidar survey that was used to estimate dune morphology variables. Process_Step: Process_Description: For dune morphology data: Elevation data from lidar surveys were interpolated in MATLAB (version 2017a) 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 applied spatial filtering with a Hanning window that was twice as wide as the grid resolution. Dune morphology data were extracted from the elevation grid in MATLAB. Dune morphology data were then summarized to 1 km sections. Sections with greater than 75 percent of data missing were flagged with the invalid number of -999. The 1-km smoothed dune crest (DHIGH), toe (DLOW) and root mean square (RMS) error for each (DHIrms and DLOrms) were written to line shapefiles using MATLAB's shapewrite.m script. Source_Used_Citation_Abbreviation: NOAA 2014 SC-NY Source_Used_Citation_Abbreviation: USACE Northeast 2013 Source_Used_Citation_Abbreviation: USACE Northeast 2010 Process_Date: 2018 Source_Produced_Citation_Abbreviation: Dune morphology (DHIGH, DLOW, DHIrms, DLOrms) Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Justin J. Birchler 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: 727-502-8019 Contact_Facsimile_Telephone: 727-502-8182 Contact_Electronic_Mail_Address: jbirchler@usgs.gov Process_Step: Process_Description: For hydrodynamic data: Water level was computed in MATLAB by adding storm surge from NOAA’s Probabilistic Tropical Storm Surge (P- Surge) model (https://slosh.nws.noaa.gov/psurge2.0/) to wave setup and runup. The wave height and period used for calculating wave runup and setup came from the Wavewatch III model. Hydrodynamic parameters were calculated in MATLAB and exported into ArcGIS shapefile format. For details on modeling parameterization, see: Stockdon, H.F., Doran, K.J., Thompson, D.M., Sopkin, K.L., Plant, N.G., and Sallenger, A.H., 2012, National assessment of hurricane-induced coastal erosion hazards: Gulf of Mexico: U.S. Geological Survey Open-File Report 2012-1084, 51 p. https://pubs.usgs.gov/of/2012/1084/ Source_Used_Citation_Abbreviation: ESTOFS Source_Used_Citation_Abbreviation: WW3 Process_Date: 20180302 Source_Produced_Citation_Abbreviation: Hydrodynamics (SURGE, SETUP, RUNUP) Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Justin J. Birchler 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: 727-502-8019 Contact_Facsimile_Telephone: 727-502-8182 Contact_Electronic_Mail_Address: jbirchler@usgs.gov Process_Step: Process_Description: Probabilities of coastal erosion hazards were based on estimating the likelihood that the beach system would experience erosion and deposition patterns consistent with collision (PCOL), overwash (POVW), or inundation (PIND) regimes. The regimes were calculated by using values of dune morphology and mean and extreme water levels for each 1 km section, such that the probability of collision (PCOL) occurs when extreme water levels reach the dune toe; overwash (POVW) when extreme water levels reach the dune crest; and inundation (PIND) when mean water levels reach the dune crest. Probabilities were calculated in MATLAB and exported using MATLAB's shapewrite.m script. For details on modeling parameterization, see: Stockdon, H.F., Doran, K.J., Thompson, D.M., Sopkin, K.L., Plant, N.G., and Sallenger, A.H., 2012, National assessment of hurricane-induced coastal erosion hazards: Gulf of Mexico: U.S. Geological Survey Open-File Report 2012-1084, 51 p. https://pubs.usgs.gov/of/2012/1084/ Source_Used_Citation_Abbreviation: Dune morphology Source_Used_Citation_Abbreviation: Hydrodynamics Process_Date: 20180302 Source_Produced_Citation_Abbreviation: Probabilities (PCOL, POVW, PIND) Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Justin J. Birchler 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: 727-502-8019 Contact_Facsimile_Telephone: 727-502-8182 Contact_Electronic_Mail_Address: jbirchler@usgs.gov Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 2020 Process_Step: Process_Description: Version 2.0: This previously published metadata record was updated as part of the version 2.0 revision, after it was identified that the DHIrms and DLOrms fields mistakenly defined the root mean squared error unit in square meters, instead of meters. This did not impact the data values reported in the shapefiles. Process_Date: 20251117 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 1990 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0197539541 Longitude_Resolution: 0.0251945370 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: March 2018_PCOI_line Entity_Type_Definition: Probabilities of hurricane-induced coastal erosion, dune morphology, and hurricane hydrodynamic data Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: DHIGH Attribute_Definition: Elevation of dune crest, in meters, using the North American Vertical Datum of 1988 (NAVD88). Extracted from lidar surveys collected from May 2010 to December 2014. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.0976 Range_Domain_Maximum: 44.7364 Attribute_Units_of_Measure: meters NAVD88 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -999 Enumerated_Domain_Value_Definition: Null value Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: DLOW Attribute_Definition: Elevation of the dune toe, in meters NAVD88. Extracted from lidar surveys collected from May 2010 to December 2014. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.0884 Range_Domain_Maximum: 6.0495 Attribute_Units_of_Measure: meters NAVD88 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -999 Enumerated_Domain_Value_Definition: Null value Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: DHIrms Attribute_Definition: Root mean squared error of dune crest elevation measurements (meters). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.145070 Range_Domain_Maximum: 3.862926 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: DLOrms Attribute_Definition: Root mean square error of dune toe elevation measurements (meters). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1.168874 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: SURGE Attribute_Definition: Storm surge water level Attribute_Definition_Source: NOAA Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.55014 Range_Domain_Maximum: 2.5036 Attribute_Units_of_Measure: meters NAVD88 Attribute: Attribute_Label: RUNUP Attribute_Definition: Wave runup water level Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.31678 Range_Domain_Maximum: 6.4382 Attribute_Units_of_Measure: meters NAVD88 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -999 Enumerated_Domain_Value_Definition: Null value Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: SETUP Attribute_Definition: Wave setup water level Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.069539 Range_Domain_Maximum: 2.7355 Attribute_Units_of_Measure: meters NAVD88 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -999 Enumerated_Domain_Value_Definition: Null value Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: PCOL Attribute_Definition: Probability of collision Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.11318 Range_Domain_Maximum: 99.99 Attribute_Units_of_Measure: percent Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -999 Enumerated_Domain_Value_Definition: Null value Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: POVW Attribute_Definition: Probability of overwash Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 99.7948 Attribute_Units_of_Measure: percent Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -999 Enumerated_Domain_Value_Definition: Null value Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: PIND Attribute_Definition: Probability of inundation Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 79.8668 Attribute_Units_of_Measure: percent Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -999 Enumerated_Domain_Value_Definition: Null value Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: MEAN Attribute_Definition: Mean water level (surge + setup) Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.73313 Range_Domain_Maximum: 5.0796 Attribute_Units_of_Measure: meters NAVD88 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -999 Enumerated_Domain_Value_Definition: Null value Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: EXTREME Attribute_Definition: Extreme water level (surge + runup). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.2749 Range_Domain_Maximum: 8.7823 Attribute_Units_of_Measure: meters NAVD88 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: -999 Enumerated_Domain_Value_Definition: Null value Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: TIDE Attribute_Definition: Predicted tide water level Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0 Attribute_Units_of_Measure: meters NAVD88 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Person: USGS SPCMSC Data Management 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: 727-502-8000 Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. 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: shapefile File_Decompression_Technique: zip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P9Z362BC/data/March_2018.zip Fees: None, if obtained online. Metadata_Reference_Information: Metadata_Date: 20251117 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Person: USGS SPCMSC Data Management 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: 727-502-8000 Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time