Metadata: Identification_Information: Citation: Citation_Information: Originator: Justin J. Birchler Originator: Kara S. Doran Originator: Hilary F. Stockdon Originator: Heather A. Schreppel Publication_Date: 20190619 Title: Hurricane Matthew Assessment of Potential Coastal Change Impacts: NHC Advisory 037, 800 AM EDT FRI OCT 07 2016 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: U.S. Geological Survey Data Release Issue_Identification: doi:10.5066/P9Z362BC Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9Z362BC Larger_Work_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2019 Title: USGS Coastal Change Hazards Portal Online_Linkage: https://marine.usgs.gov/coastalchangehazardsportal Description: Abstract: This dataset defines storm-induced coastal erosion hazards for the Florida, Georgia, South Carolina and North Carolina 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 Hurricane Matthew in October 2016. 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 Florida, Georgia, South Carolina and North Carolina coast post-Hurricane Matthew. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20161007 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: -81.459 East_Bounding_Coordinate: -75.4759 North_Bounding_Coordinate: 35.5018 South_Bounding_Coordinate: 25.7599 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:58aec7bb-4374-43b0-a3bb-151b9da9e570 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: Hurricane Matthew Theme_Keyword: coastal 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: Florida Place_Keyword: Georgia Place_Keyword: South Carolina Place_Keyword: North Carolina 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: 727-502-8182 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 Hurricane Center, National Oceanic and Atmospheric Administration Publication_Date: 20161007 Title: Probabalistic Storm Surge Online_Linkage: https://www.nws.noaa.gov/mdl/psurge/ Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20161007 Source_Currentness_Reference: The date when web page was last modified. Source_Citation_Abbreviation: Psurge Source_Contribution: Data provides water levels that have a 1 in 10 chance of being exceeded during the next 3 days. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Weather Service Environmental Modeling Center Publication_Date: 20161007 Title: NOAA Wavewatch III Online_Linkage: https://polar.ncep.noaa.gov/waves Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20161007 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 Hurricane Matthew. Source_Information: Source_Citation: Citation_Information: Originator: U.S. Army Corps of Engineers (USACE) Publication_Date: 201109 Title: 2009 USACE Topo/Bathy lidar: East Coast of Florida Other_Citation_Details: Geographic Coverage: FL (Key Biscayne to Melbourne) Online_Linkage: https://inport.nmfs.noaa.gov/inport/item/54218 Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20090831 Ending_Date: 20091003 Source_Currentness_Reference: The date when lidar surveys were collected. Source_Citation_Abbreviation: USACE South Florida 2009 Source_Contribution: A lidar survey that was used to estimate dune morphology variables. Source_Information: Source_Citation: Citation_Information: Originator: USACE Publication_Date: 20141114 Title: 2010 USACE Lidar: Southeast Atlantic Coast Other_Citation_Details: Geographic Coverage: FL (Melbourne to FL/GA border), GA, SC (GA/SC border to Winyah Bay) Online_Linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1070 Type_of_Source_Media: Online digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20100504 Ending_Date: 20100616 Source_Currentness_Reference: The date when lidar surveys were collected. Source_Citation_Abbreviation: USACE Southeast 2010 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), 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/ Online_Linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=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. Process_Step: Process_Description: 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: USACE South Florida 2009 Source_Used_Citation_Abbreviation: USACE Southeast 2010 Source_Used_Citation_Abbreviation: NOAA 2014 SC-NY Process_Date: 2016 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 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: Psurge Source_Used_Citation_Abbreviation: WW3 Process_Date: 20161007 Source_Produced_Citation_Abbreviation: Hydrodynamics (SURGE, SETUP, RUNUP) Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Justin 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: 20161007 Source_Produced_Citation_Abbreviation: Probabilities (PCOL, POVW, PIND) Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Justin 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: 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: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 1488 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0197863028 Longitude_Resolution: 0.0228701634 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: Matthew_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 August 2009 to July 2014. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.7105 Range_Domain_Maximum: 9.468 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 August 2009 to July 2014. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.0386 Range_Domain_Maximum: 4.8546 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 (square meters). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.232370 Range_Domain_Maximum: 1.845242 Attribute_Units_of_Measure: square 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 (square meters). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.082870 Range_Domain_Maximum: 1.200408 Attribute_Units_of_Measure: square 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: 0.46195 Range_Domain_Maximum: 3.3544 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: 0.81433 Range_Domain_Maximum: 5.9195 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: 0.068096 Range_Domain_Maximum: 2.4385 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: 6.8908 Range_Domain_Maximum: 100 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: 100 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: 99.9998 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: 0.66958 Range_Domain_Maximum: 5.5226 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: 1.3023 Range_Domain_Maximum: 9.0036 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 Contact_Person: Justin Birchler 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: 727-502-8019 Contact_Facsimile_Telephone: 727-502-8182 Contact_Electronic_Mail_Address: jbirchler@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: 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/Matthew_2016.zip Fees: None, if obtained online. Metadata_Reference_Information: Metadata_Date: 20201013 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Justin 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 Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time