Metadata: Identification_Information: Citation: Citation_Information: Originator: Joseph F. Terrano Originator: Kathryn E. Smith Publication_Date: 20160602 Title: Estuarine Shoreline and Barrier-Island Sandline Change Assessment Dataset Geospatial_Data_Presentation_Form: Tabular data Series_Information: Series_Name: U.S. Geological Survey Data Release Issue_Identification: doi:10.5066/F71Z42HN Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U.S. Geological Survey Online_Linkage: http://coastal.er.usgs.gov/data-release/doi-F71Z42HN/ Description: Abstract: The Barrier Island and Estuarine Wetland Physical Change Assessment Dataset was created to calibrate and test probability models of barrier island sandline and estuarine shoreline change for study areas in Virginia, Maryland, and New Jersey. The models examined the influence of hydrologic and physical variables related to storm-derived overwash and estuarine shoreline change. Variables were calculated using a transect-based method in a geographic information system (GIS) by creating shoreline-perpendicular lines at regular intervals along the oceanfront shoreline and extrapolating the features from geospatial data, including lidar, bathymetry and aerial imagery. In addition, the dataset provides storm-derived barrier island change for Hurricane Sandy, as well as linear rates of change for long-term sandline and estuarine shorelines. Purpose: Shoreline rates of change are considered a crucial element in performing change analysis for erosion and accretion studies and for tracking shoreline movement over time. The Digital Shoreline Analysis System (DSAS) is computer software that uses transects as a method to extract shoreline change rates from shorelines at a given interval across a baseline. For this long term analysis, transects were spaced out at a 50-m interval across the baseline and shoreline change rates were calculated for the long-term (1849-2013). The rates of change were joined to the transects to allow for a visual representation of these rates. The elevation, bathymetric depths, wave heights, surge, runup, and total water level (TWL) were calculated for each transect so that the rates of change corresponded with this new data. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 18490101 Ending_Date: 20130905 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -75.358892 East_Bounding_Coordinate: -73.920363 North_Bounding_Coordinate: 40.486781 South_Bounding_Coordinate: 37.857255 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:10f6a3f0-d0ab-469e-9b6d-fa6a7ad93fec Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: GeoscientificInformation Theme_Keyword: Oceans Theme_Keyword: Environment Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Rate of change Theme_Keyword: Transect data Theme_Keyword: Net Shoreline Movement Theme_Keyword: Coastal Theme_Keyword: Width Theme_Keyword: Linear Regression Rate Theme_Keyword: Elevation Theme_Keyword: Bathymetry Theme_Keyword: Waves Theme_Keyword: Surge Place: Place_Keyword_Thesaurus: None Place_Keyword: New Jersey Place_Keyword: USA Place_Keyword: Mid-Atlantic Ocean Place_Keyword: VA Place_Keyword: Assateague Island Place_Keyword: Maryland Place_Keyword: Virginia Place_Keyword: MD Place_Keyword: NJ Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 1849 to 2013 Access_Constraints: None Use_Constraints: The U.S. Geological Survey 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 Coastal and Marine Science Center Contact_Person: Joseph F. Terrano Contact_Position: Researcher 1 Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: US Contact_Voice_Telephone: (727) 502-8047 Contact_Facsimile_Telephone: (727) 502-8001 Contact_Electronic_Mail_Address: jterrano@usgs.gov Hours_of_Service: Monday through Friday, 9:00 a.m. to 5:00 p.m., Eastern Standard Time Data_Set_Credit: This project was funded by the USGS Coastal and Marine Geology Program. Acknowledgment of the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices. Sharing of new data layers developed directly from these data would also be appreciated by the U.S. Geological Survey staff. Users should be aware that comparisons with other datasets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photointerpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such. Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959 Cross_Reference: Citation_Information: Originator: Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Ergul, Ayhan Publication_Date: 20090101 Title: The Digital Shoreline Analysis System (DSAS) version 4.0—an ArcGIS Extension for Calculating Shoreline Change Online_Linkage: http://woodshole.er.usgs.gov/project-pages/DSAS/version4/ Data_Quality_Information: Logical_Consistency_Report: Transects were generated as a product of the DSAS program at a 50-m interval. These transects were checked to ensure an even distribution and coverage of the shoreline datasets. Completeness_Report: Transects with errors or no data were displayed as "null" values, which represent a transect where no data were available. These "null" values are represented as blank boxes in the excel and csv files. These values should be checked and removed if using in any further analysis. The remaining transect start points with rates were used to aid in the final shoreline analysis results. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Ergul, Ayhan Publication_Date: 20090101 Title: The Digital Shoreline Analysis System (DSAS) version 4.0 —an ArcGIS Extension for Calculating Shoreline Change Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: http://woodshole.er.usgs.gov/project-pages/DSAS/version4/ Source_Scale_Denominator: 1500 Type_of_Source_Media: onine Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 18490101 Ending_Date: 20130905 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Estuarine Shoreline and Barrier-Island Sandline Change Source_Contribution: DSAS was used to generate transects at a 50-m interval. Process_Step: Process_Description: Transects were generated at a 50-meter interval perpendicular to the baseline for both the Assateague Island MD/VA and the New Jersey study areas. The shorelines were split into two different analysis groups: (1) 1800s-2013 and (2) Pre/Post Hurricane Sandy. Rates of change were calculated for: (1) net shoreline movement (NSM) (2) linear regression rate (LRR) for the foreshore, backshore, and sandline and saved to a table, in the ArcGIS personal geodatabase format. The LRR was calculated for only the 1800s to 2013 datasets, while the NSM was calculated for only the Pre/Post Hurricane Sandy Datasets. The rate table generated by DSAS was then joined to the respective transect file so the rate values could be displayed on a map. Process_Date: 20160101 Process_Step: Process_Description: Barrier width: the width (m) of the island from the beach shoreline to the bay-side shoreline. The width was determined by intersecting shoreline data digitized from the latest pre-Sandy ortho-rectified natural color imagery, provided by the National Agricultural Imagery Program (NAIP), with the DSAS transects. Imagery was collected in May 2012 and June 2011 for Virginia and Maryland, respectively. To obtain island width, transects were clipped by both the front and back shorelines in ArcGIS and the remaining length was tabulated. The corresponding field is Island_Wid. Barrier height: maximum vertical height (m) calculated from pre-Sandy lidar data collected in March 2010. Clipped transects from barrier width analyses were attributed with spatially coincident lidar elevation using the "Add Surface Information" tool in ArcGIS 3D Analyst extension, which added the Z_MAX, Z_MEAN, and Z_MIN properties to the transect attribute table. The corresponding fields are Z_Min, Z_Max, and Z_Mean. Process_Date: 20160101 Process_Step: Process_Description: Estuary width: the width (m) of the estuary from the the back barrier shoreline to the closest land (mainland or other island) shoreline. The width was determined by intersecting shoreline data digitized from the latest pre-Sandy ortho-rectified natural color imagery from NAIP with the DSAS transects. Imagery was collected in May 2012 and June 2011 for Virginia and Maryland, respectively. To obtain estuary width, transects were clipped by both the back barrier and mainland (or nearby island) shorelines in ArcGIS and length tabulated. The corresponding field is Estuary_Width. Estuary depth: the maximum depth of the estuary (m). Data on estuarine bathymetry were obtained from the Ocean City digital elevation model (DEM) published by the National Oceanic and Atmospheric Administration (NOAA). The corresponding fields are Bathy_Min, Bathy_Max, and Bathy_Mean. Hurricane Sandy maximum wave height for ocean and estuary: maximum wave height (m) from Hurricane Sandy were calculated from hydrological models. Model output was imported into ArcGIS using the centroid coordinates for each model grid cell. A spatial join, with a distance of 500 meters, calculated the average maximum wave height for cells within 500 meters of each island transect. Corresponding fields are Bay_Waves_Mean, Bay_Waves_Max, Beach_Waves_Mean, and Beach_Waves_Max. Process_Date: 20151201 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Joseph Terrano Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: US Contact_Voice_Telephone: (727) 502-8047 Contact_Facsimile_Telephone: (727) 502-8001 Contact_Electronic_Mail_Address: jterrano@usgs.gov Hours_of_Service: Monday through Friday, 9:00 a.m. to 5:00 p.m., Eastern Standard Time Process_Step: Process_Description: For hydrodynamic data (Surge, Setup, Runup, TWL): Water level was computed in Matlab (version R2013b) by adding storm surge from NOAAs Psurge model to wave setup and runup. The wave height and period for calculating wave runup and setup come from the Wavewatch III model. Hydrodynamic parameters were calculated in Matlab and exported into ArcGIS 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. http://pubs.usgs.gov/of/2012/1084/ Process_Date: 20160101 Process_Step: Process_Description: The data from the various analyses were spatially joined into a new transect shapefile for each of the two study areas. As this file was generated inside of an ArcGIS personal geodatabase it was converted to an excel spreadsheet and any "NULL" values were changed to "-99999" for publication purposes. The final products are Excel and comma separated values (csv) files for Assateague Island and another for the New Jersey coast. Source_Used_Citation_Abbreviation: Psurge Source_Used_Citation_Abbreviation: WW3 Process_Date: 20151201 Source_Produced_Citation_Abbreviation: Hydrodynamics (SURGE, SETUP, RUNUP) Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: USGS Staff Contact_Organization: U.S Geological Survey Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Facsimile_Telephone: (727) 502-8001 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: 3459 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0197519519 Longitude_Resolution: 0.0253592358 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: D North American 1983 Ellipsoid_Name: GRS 1980 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257222101 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Assateague_Island_Model_Variables and New_Jersey_Model_Variables Entity_Type_Definition: Excel Spreadsheets and CSV files, which include rate of change statistics, elevation, bathymetry, and wave data for Assateague Island MD/VA and study areas on the New Jersey Coast, from the 1849 to 2013 for a series of transects. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: OBJECTID 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: StartX Attribute_Definition: Starting longitude of each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -75.358892 Range_Domain_Maximum: -73.920363 Attribute: Attribute_Label: StartY Attribute_Definition: Starting latitude of each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 37.857255 Range_Domain_Maximum: 40.486780 Attribute: Attribute_Label: EndX Attribute_Definition: End longitude of each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -75.520943 Range_Domain_Maximum: -74.153104 Attribute: Attribute_Label: EndY Attribute_Definition: End latitude of each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 37.933219 Range_Domain_Maximum: 40.458675 Attribute: Attribute_Label: Z_Min Attribute_Definition: Minimum elevation of the island (in meters) for each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1.750140 Range_Domain_Maximum: 2.071121 Attribute: Attribute_Label: Z_Max Attribute_Definition: Maximum elevation of the island (in meters) for each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.284293 Range_Domain_Maximum: 48.962055 Attribute: Attribute_Label: Z_Mean Attribute_Definition: Mean elevation of the island (in meters) for each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.343437 Range_Domain_Maximum: 11.635452 Attribute: Attribute_Label: Bay_Waves_Mean Attribute_Definition: Mean height of the waves (in meters) for the bay side of the island. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.000522 Range_Domain_Maximum: 0.408183 Attribute: Attribute_Label: Beach_Waves_Mean Attribute_Definition: Mean height of the waves (in meters) for the beach side of the island. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.097231 Range_Domain_Maximum: 0.82 Attribute: Attribute_Label: Bay_Waves_Max Attribute_Definition: Max height of the waves (in meters) for the bay side of the island. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.023443 Range_Domain_Maximum: 0.92 Attribute: Attribute_Label: Beach_Waves_Max Attribute_Definition: Max height of the waves (in meters) for the beach side of the island. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.12 Range_Domain_Maximum: 2.07343 Attribute: Attribute_Label: Bathy_Min Attribute_Definition: Minimum depth of the estuary (in meters) for each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -14.196183 Range_Domain_Maximum: 1.191 Attribute: Attribute_Label: Bathy_Max Attribute_Definition: Maximum depth of the estuary (in meters) for each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -3.598999 Range_Domain_Maximum: 4.17474 Attribute: Attribute_Label: Bathy_Mean Attribute_Definition: Mean depth of the estuary (in meters) for each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -6.8834 Range_Domain_Maximum: 1.189635 Attribute: Attribute_Label: Island_Width Attribute_Definition: Width of the barrier island in meters from the foreshore to the furthest point on the backshore. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 97.034704 Range_Domain_Maximum: 4287.821705 Attribute: Attribute_Label: Estuary_Width Attribute_Definition: Width of the estuary (in meters) between the furthest point of the backshore Pre-Hurricane Sandy shoreline to the closest point on the mainland Pre-Hurricane Sandy shoreline, calculated for each transect. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 17.4809189 Range_Domain_Maximum: 11443.320871 Attribute: Attribute_Label: Frontshore_1800_2013_LRR Attribute_Definition: Linear Regression Rate calculated for the Foreshore from the DSAS 1849 to 2013 analysis. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -15.45 Range_Domain_Maximum: 27.58 Attribute: Attribute_Label: Backshore_1800_2013_LRR Attribute_Definition: Linear Regression Rate calculated for the backshore from the DSAS 1849 to 2013 analysis. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -31.96 Range_Domain_Maximum: 14.85 Attribute: Attribute_Label: Sandline_1989_2013_LRR Attribute_Definition: Linear Regression Rate calculated for the sandline from the DSAS 1989 to 2013 analysis. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -55.009304 Range_Domain_Maximum: 118.347099 Attribute: Attribute_Label: Frontshore_HS_NSM Attribute_Definition: Net Shoreline Movement (NSM) calculated by DSAS for the Pre/Post Hurricane Sandy foreshore rate of change analysis. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -148.59 Range_Domain_Maximum: 111.47 Attribute: Attribute_Label: Backshore_HS_NSM Attribute_Definition: Net Shoreline Movement (NSM) calculated by DSAS for the Pre/Post Hurricane Sandy backshore rate of change analysis. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -240.06 Range_Domain_Maximum: 796.59 Attribute: Attribute_Label: Sandline_HS_NSM Attribute_Definition: Net Shoreline Movement (NSM) calculated by DSAS for the Pre/Post Hurricane Sandy sandline rate of change analysis. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -345.75 Range_Domain_Maximum: 204.72 Attribute: Attribute_Label: Surge Attribute_Definition: Storm surge water level Attribute_Definition_Source: NOAA Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.340904 Range_Domain_Maximum: 2.733743 Attribute: Attribute_Label: Setup Attribute_Definition: Wave setup water level Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.063736 Range_Domain_Maximum: 2.334207 Attribute: Attribute_Label: Runup Attribute_Definition: Wave runup water level Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.635748 Range_Domain_Maximum: 5.801105 Attribute: Attribute_Label: TWL Attribute_Definition: SURGE + RUNUP Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.121699 Range_Domain_Maximum: 7.220844 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Joseph F. Terrano Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: US Contact_Voice_Telephone: (727) 502-8047 Contact_Facsimile_Telephone: (727) 502-8001 Contact_Electronic_Mail_Address: jterrano@usgs.gov Hours_of_Service: Monday through Friday, 9:00 a.m. to 5:00 p.m., Eastern Standard Time Contact_Instructions: All of this report is available online. Resource_Description: Assateague_Island_Model_Variables.csv and New_Jersey_Model_Variables.csv (also provided as .xlsx) 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: Tabular data Format_Information_Content: Excel spreadsheets and CSV files containing transect coordinates with shoreline and sandline change statistics, elevation, bathymetry, and wave height data for Assateague Island MD/VA and the six study areas on the NJ coast. Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://coastal.er.usgs.gov/data-release/doi-F71Z42HN/data/Assateague.zip Network_Resource_Name: http://coastal.er.usgs.gov/data-release/doi-F71Z42HN/data/New_Jersey.zip Fees: None Metadata_Reference_Information: Metadata_Date: 20201013 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Joseph F. Terrano Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: US Contact_Voice_Telephone: (727) 502-8047 Contact_Facsimile_Telephone: (727) 502-8001 Contact_Electronic_Mail_Address: jterrano@usgs.gov Hours_of_Service: Monday through Friday, 9:00 a.m. to 5:00 p.m., Eastern Standard Time Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_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 originator of the data in future products or derivative research.