Identification_Information: Citation: Citation_Information: Originator: P. Soupy Dalyander Originator: Joseph W. Long Originator: Nathaniel G. Plant Originator: David Thompson Publication_Date: 2012 Title: Hydrodynamic and Sediment Transport Model Application for OSAT3 Guidance: peak wave period Edition: 2.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report (OFR) Issue_Identification: 2012-1234 Publication_Information: Publication_Place: St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2012/1234/datafiles.html Larger_Work_Citation: Citation_Information: Originator: Nathaniel G. Plant Originator: Joseph W. Long Originator: P.Soupy Dalyander Originator: David Thompson Publication_Date: 2012 Title: Hydrodynamic and Sediment Transport Model Application for OSAT3 Guidance Edition: 1.0 Series_Information: Series_Name: Open-File Report (OFR) Issue_Identification: 2012-1234 Publication_Information: Publication_Place: St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2012/1234/title_page.html Description: Abstract: The U.S. Geological Survey has developed a method for estimating the mobility and potential alongshore transport of heavier-than-water sand and oil agglomerates (tarballs or surface residual balls, SRBs). During the Deepwater Horizon spill, some oil that reached the surf zone of the northern Gulf of Mexico mixed with suspended sediment and sank to form sub-tidal mats. If not removed, these mats can break apart to form SRBs and subsequently re-oil the beach. A method was developed for estimating SRB mobilization and alongshore movement. A representative suite of wave conditions was identified from buoy data for April, 2010, until August, 2012, and used to drive a numerical model of the spatially-variant alongshore currents. Potential mobilization of SRBs was estimated by comparing combined wave- and current-induced shear stress from the model to critical stress values for several sized SRBs. Potential alongshore flux of SRBs was also estimated to identify regions more or less likely to have SRBs deposited under each scenario. This methodology was developed to explain SRB movement and redistribution in the alongshore, interpret observed re-oiling events, and thus inform re-oiling mitigation efforts. Purpose: This GIS layer contains an estimate of peak wave period in the shallow northern Gulf of Mexico (Alabama and a portion of the Florida coast) for a single set of wave conditions. This output is based on numerical model output of wave patterns for a given wave height scenario, corresponding to a particular set of offshore wave conditions at NOAA NDBC buoy 42040. The specific wave conditions for a given layer are indicated by the file name (of format Hh_Dd_wave_period), and in the shapefile attributes, and may be found by comparing the scenario name (Hh_Dd) to the look-up table included in the GIS zip file, wave_scenarios.txt. This data layer is intended to illustrate the spatial variability in wave period for this particular offshore wave climate scenario. Supplemental_Information: This data layer is a subset of USGS Open-File Report 2012-1234, Hydrodynamic and Sediment Transport Model Application for OSAT3 Guidance. It is part of a set of data layers showing the spatial variability in peak wave period for a range of offshore wave condition scenarios. The specific wave conditions and object parameters for this layer are indicated by the file name (of format Hh_Dd_wave_period), and in the shapefile attributes, and may be found by comparing the scenario name (Hh_Dd) to the look-up table included in the GIS zip file, wave_scenarios.txt. Version 1 of OFR 2012-1234 included model output of wave height (file name covention Hh_Dd_wave_height), but did not include wave period (such as in this file) or wave direction (file name convention Hh_Dd_wave_direction). At the request of an OFR user, version 2 of the OFR adds wave direction and wave period model output. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20100401 Ending_Date: 20120801 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -88.720441 East_Bounding_Coordinate: -85.410772 North_Bounding_Coordinate: 30.696090 South_Bounding_Coordinate: 29.395074 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: wave Theme_Keyword: current Theme_Keyword: Delft3D Theme_Keyword: St. Petersburg Coastal and Marine Science Center Theme_Keyword: SPCMSC Theme_Keyword: tarballs Theme_Keyword: surface residual balls Theme_Keyword: SRBs Theme_Keyword: sediment mobility Theme_Keyword: surf zone Theme_Keyword: alongshore currents Theme_Keyword: wave-driven currents Theme: Theme_Keyword_Thesaurus: ISO 9115 Topic Category Theme_Keyword: oceans Theme_Keyword: oceans and estuaries Theme_Keyword: oceans and coastal Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: General Place_Keyword: Gulf of Mexico Place_Keyword: Florida Place_Keyword: Alabama Place_Keyword: United States Place_Keyword: North America Place_Keyword: Atlantic Ocean Place_Keyword: Mobile Bay Place_Keyword: Pensacola Bay Place_Keyword: Choctawhatchee Bay Place_Keyword: Santa Rosa Place_Keyword: Fort Pickens Place_Keyword: Gulf Shores Place_Keyword: Panama City Place_Keyword: Little Lagoon Stratum: Stratum_Keyword_Thesaurus: General Stratum_Keyword: seafloor Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: P. Soupy Dalyander Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street S City: St Petersburg State_or_Province: FL Postal_Code: 33704 Country: USA Contact_Voice_Telephone: (727) 502-8124 Contact_Facsimile_Telephone: (727) 502-8001 Contact_Electronic_Mail_Address: sdalyander@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: model_bathymetry.jpg Browse_Graphic_File_Description: Graphic showing the numerical model domain over which analysis is conducted. Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The attribute in this data layer corresponds to peak wave period for Hh_Dd, characteristics of which may be found in the included wave_scenarios.txt file. Values will vary if a different numerical model is used to estimate the waves. Logical_Consistency_Report: No duplicate features are present. All polygons are closed, and all lines intersect where intended. No undershoots or overshoots are present. Completeness_Report: This statistic was calculated at all locations (wet grid cells) where model output exists. Because of differences between the scenarios, not all grid cells may be included in all scenarios. The statistic was calculated for a particular scenario (Hh_Dd), the characteristics of which may be found in the included wave_scenarios.txt file. The peak wave period was calculated from wave estimates generated with Delft3D, and would vary if a different model was used or if different model inputs (such as bathymetry, forcing winds, and boundary conditions) or parameterizations were chosen. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Numerical models are used in estimating the wave period values for this data layer. Because the overall horizontal accuracy of the dataset depends on the accuracy of the model, the underlying bathymetry, forcing values used, and so forth, the spatial accuracy of this data layer cannot be meaningfully quantified. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Centers for Environmental Prediction (NCEP) Publication_Date: 20110601 Title: NOAA/NCEP Global Forecast System (GFS) Atmospheric Model Publication_Information: Publication_Place: Camp Springs, MD Publisher: NOAA National Centers for Environmental Prediction Online_Linkage: http://nomads.ncdc.noaa.gov/data.php Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20100401 Ending_Date: 20120531 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: NOAA GFS Source_Contribution: Wind speed data at 10 m above the sea surface from the NOAA Global Forecast System (GFS) 0.5 degree model is interpolated by NOAA to the 4' Wavewatch3 grid and archived. These archived data are used to drive the numerical wave and circulation model that creates estimates of bottom shear stress. Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Centers for Environmental Prediction (NCEP Publication_Date: 20121001 Title: NOAA/NWS/NCEP 4' Wavewatch III Operational Wave Forecast Publication_Information: Publication_Place: Camp Springs, MD Publisher: NOAA National Centers for Environmental Prediction Online_Linkage: http://polar.ncep.noaa.gov/waves/index2.shtml Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20100401 Ending_Date: 20120531 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: NOAA WW3 Source_Contribution: Boundary conditions for the wave model were provided by the 4' NOAA/NWS/NCEP Wavewatch III operational ocean wave forecast. Process_Step: Process_Description: The D-Flow and D-Waves components of the Deltares Delft3D numerical model suite (version 4.00.01) were used to estimate east and north components of wind and wave-driven velocity for the offshore wave conditions corresponding to scenarios, Hh_Dd, (characteristics of which may be found in the included wave_scenarios.txt file) in each grid cell in the model domain. The wave model D-Waves, based on the Simulating WAves Nearshore (SWAN) model, is a 3rd generation phase-averaged numerical wave model which conserves wave energy subject to generation, dissipation, and transformation processes and resolves spectral energy density over a range of user-specified frequencies and directions. D-Wave was used in stationary mode. D-Flow solves the shallow water Navier Stokes equations and is run in 2-D depth-averaged mode, with linkage to D-Waves allowing the generation of wave-driven currents via wave radiation stress forcing. Default values for model parameters governing horizontal viscosity, bottom roughness, and wind drag were used. Neumann boundary conditions were used along the east, west, and south model boundaries with harmonic forcing set to zero. Model bathymetry was provided by the NOAA National Geophysical Data Center Northern Gulf Coast digital elevation map, referenced to NAVD88. Significant wave height, dominant wave period, and wave direction were prescribed as D-Wave TPAR format files every 30 grid cells along the model boundary using results from the NOAA Wavewatch III 4' multi-grid model for a representative moment in time corresponding to the offshore wave conditions of the scenario, the specific time of which may be found in the included wave_scenarios.txt file. A JONSWAP (JOint NOrth Sea WAve Project) spectral shape was assumed at these boundary points. Wind forcing was provided using the archived WavewatchIII 4' winds, extracted from the NOAA GFS wind model, for this time. The D-Wave directional space covers a full circle with a resolution of 5 degrees (72 bins). The frequency range was specified as 0.05-1 Hz with logarithmic spacing. Bottom friction calculations used the JONSWAP formulation with a uniform roughness coefficient of 0.067 m2/s3. 3rd-generation physics are activated, which accounts for wind wave generation, triad wave interactions and whitecapping (via the Komen et al parameterization). Depth-induced wave breaking dissipation is included using the method of Battjes and Janssen with default values for alpha (1) and gamma (0.73). Current model outputs of east and north current velocity component were extracted and interpolated to the wave model grid (staggered points in relation to the current model grid). The coupled model system outputs the peak wave period values included in this layer. NDBC observations from station 42012 for the representative scenario time periods were used to validate the wave model results. Source_Used_Citation_Abbreviation: NOAA GFS Source_Used_Citation_Abbreviation: NOAA WW3 Process_Date: 2012 Source_Produced_Citation_Abbreviation: DELFT3D Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Joseph W. Long Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street S City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 803-8747 x3024 Contact_Facsimile_Telephone: (727) 803-2032 Contact_Electronic_Mail_Address: jwlong@usgs.gov Process_Step: Process_Description: Export the peak wave period values for each grid cell from MATLAB format into an ArcGIS polygon shapefile using the Mathworks MATLAB Mapping Toolbox (v2012A). The shapefile is written with the "shapewrite" command. Because MATLAB does not assign a projection, the projection corresponding to the projection associated with the bathymetry used in the numerical models is added in ArcCatalog 9.3. The file was then quality checked in ArcMap to ensure values were properly exported to the shapefile from MATLAB. Source_Used_Citation_Abbreviation: DELFT3D Process_Date: 2014 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: P. Soupy Dalyander Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street S City: St Petersburg State_or_Province: FL Postal_Code: 33704 Country: USA Contact_Voice_Telephone: (727) 502-8124 Contact_Facsimile_Telephone: (727) 502-8001 Contact_Electronic_Mail_Address: sdalyander@usgs.gov Spatial_Data_Organization_Information: Indirect_Spatial_Reference: Gulf of Mexico Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-polygon Point_and_Vector_Object_Count: 683660 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Resolution: 0.01 m Altitude_Distance_Units: meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Hh_Dd_wave_period Entity_Type_Definition: Peak wave period for specific wave scenarios 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: Scenario_H Attribute_Definition: Scenario wave height number (e.g., "h" in Hh_Dd, see wave_scenarios.txt) Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 5 Attribute_Units_of_Measure: non-dimensional Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Scenario_D Attribute_Definition: Scenario wave direction number (e.g., "d" in Hh_Dd, see wave_scenarios.txt) Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 16 Attribute_Units_of_Measure: non-dimensional Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: PeakWavePeriod Attribute_Definition: peak wave period Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 30 Attribute_Units_of_Measure: s Attribute_Measurement_Resolution: 0.01 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: P. Soupy Dalyander Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street S City: St Petersburg State_or_Province: FL Postal_Code: 33704 Country: USA Contact_Voice_Telephone: (727) 502-8124 Contact_Facsimile_Telephone: (727) 502-8001 Contact_Electronic_Mail_Address: sdalyander@usgs.gov Resource_Description: Hh_Dd_wave_period.shp: peak wave period (in s) for the Hh_Dd scenario. NOTE: Specific layer name indicates the scenario (Hh_Dd), with characteristics given in the included wave_scenarios.txt file. Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm 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: SHP Format_Version_Number: 3.3 Format_Specification: ESRI shapefile Format_Information_Content: WinZip archive file containing the shapefile components. The WinZip file also includes FGDC compliant metadata. File_Decompression_Technique: WinZip 12.0 archive Transfer_Size: 25-35 MB Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2012/1234/datafiles.html Fees: None Technical_Prerequisites: These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com. Metadata_Reference_Information: Metadata_Date: 20140825 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: P. Soupy Dalyander Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street S City: St Petersburg State_or_Province: FL Postal_Code: 33704 Country: USA Contact_Voice_Telephone: (727) 502-8124 Contact_Facsimile_Telephone: (727) 502-8001 Contact_Electronic_Mail_Address: sdalyander@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: None Metadata_Use_Constraints: None Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile