Davina L. Passeri Joseph W. Long Nathaniel G. Plant Matthew V. Bilskie Scott C. Hagen 20170609 raster digital data U.S. Geological Survey Data Release doi:10.5066/F7KP80CR St. Petersburg, FL U.S. Geological Survey https://doi.org/10.5066/F7KP80CR Using the numerical model XBeach version 4926 (Roelvink and others, 2009), various bottom friction scenarios were simulated for hurricanes Ivan (2004) and Katrina (2005) at Dauphin Island, Alabama as described in Passeri and others, 2018. The XBeach model setup requires the input of a merged topographic and bathymetric digital elevation model (DEM), and inputs of wave spectra (based on significant wave height, peak wave period and wave direction) and water level (tide and surge) time series. Model inputs and outputs in the form of topography and bathymetry are provided in this data release. For further information regarding model input generation and visualization of model output topography and bathymetry, refer to Passeri and others, 2018. These data were generated for the XBeach model to examine the influence of bottom friction on barrier island morphology during two storm events. Katrina_Initial_Elevations.zip is a dataset that consists of Federal Geographic Data Committee (FGDC) metadata and a Network Common Data Form (NetCDF) file containing the following variables: coordinates of the model grid (Easting and Northing) and the initial pre-Hurricane Katrina bathymetric/topographic (z) model elevation values, in meters. 20170609 publication date Complete As needed -88.3859 -88.0476 30.2801 30.1718 ISO 19115 Topic Category oceans elevation geoscientificInformation USGS Metadata Identifier USGS:9b5ab375-ab59-4b90-8331-2393202bd599 None U.S. Geological Survey USGS St. Petersburg Coastal and Marine Science Center SPCMSC surge tide barrier island morphologic change digital elevation models bottom friction storm impact Hurricane Katrina estuaries coastal USGS Thesaurus marine geology geomorphology topography bathymetry marine sediment transport Geographic Names Information System (GNIS) Content Gulf of Mexico Alabama North America United States Dauphin Island None. 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. U.S. Geological Survey, USGS Southeast Area Davina Passeri Research Mendenhall/Research Civil Engineer mailing

600 4th Street South

St. Petersburg FL 33701 US 727-502-8014 727-502-8001 dpasseri@usgs.gov U.S. Geological Survey Microsoft Windows 7 Enterprise; Esri ArcMap 10.2.2.; MATLAB R2015a Roelvink, D., Reniers, A., van Dongeren, A., van Thiel de Vries, J., McCall, R., and Lescinski, J. 20090915 Coastal Engineering Volume 56, Issues 11-12, November-December 2009, pg. 1133-1152 https://doi.org/10.1016/j.coastaleng.2009.08.006 Passeri, D.L., Long, J.W., Plant, N.G., Bilskie, M.V., Hagen, S.C. 2018 Coastal Engineering Volume 132, 2018, pg. 82-94 https://doi.org/10.1016/j.coastaleng.2017.11.005. Medeiros, S.C., Ali,T., Hagen, S.C. 2011 Photogrammetric Engineering & Remote Sensing Volume 77, Issue 12, December 2011, pg. 1249-1256. https://doi.org/10.14358/PERS.77.12.1249. The initial DEM contains pre-Hurricane Katrina topographic and bathymetric elevations at each model grid cell and serves as input for each scenario. This DEM contains the complete initial model grid elevation. This dataset is considered complete for the information presented, as described in the abstract section. Users are advised to read the rest of the metadata record carefully for additional details. This DEM contains the initial model pre-Hurricane Katrina topographic and bathymetric elevations. Within the XBeach model, the coordinates are in Universal Transverse Mercator (UTM). Vertical datum is in North American Vertical Datum of 1988 (NAVD88) with an estimated resolution of 0.01 m. Danielson, J.J., Brock, J.C., Howard, D.M., Gesch, D.B., Bonisteel-Cormier, J.M., and Travers, L.J. 20130919 Reston, VA U.S. Geological Survey https://doi.org/10.3133/ds769 Online digital data Unknown ground condition USGS Data Series 769 Bathymetry data used to generate initial DEM bathymetry. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM) U.S. Geological Survey (USGS) 2009 Charleston, SC NOAA's Ocean Service, Office for Coastal Management (OCM) https://coast.noaa.gov/htdata/lidar1_z/geoid12a/data/1123 Online digital data 20040919 ground condition none Lidar data used to generate intial pre-Katrina DEM topography. Esri ArcMap 10.2.2 was used to merge and interpolate bathymetric data from Danielson and others (2013), and topographic lidar survey data from the 2004 USGS Coastal Lidar: Northern Gulf Post-Ivan (AL,FL,MS) Point Cloud files with Orthometric Vertical Datum NAVD88 using GEOID12A into a 3 m resolution seamless DEM following the methods of Medeiros and others, 2011. Mathworks MATLAB (R2015a) was used to interpolate the seamless DEM onto the model grid using Triangulation-based linear interpolation with the function, griddata. This merged topographic and bathymetric dataset provides the intial, pre-Hurricane Katrina model elevations used to simulate each of the Hurricane Katrina friction scenarios. 2017 Davina Passeri U.S. Geological Survey Research Mendenhall/Research Civil Engineer mailing and physical address

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St. Petersburg FL 33701 USA (727)-502-8014 (727)-502-8001 dpasseri@usgs.gov Added keywords section with USGS persistent identifier as theme keyword. 20201013 U.S. Geological Survey VeeAnn A. Cross Marine Geologist mailing and physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Gulf of Mexico Raster Grid Cell 1296 1301 1 Universal Transverse Mercator 16 0.999600 -87.000000 0.000000 500000.000000 0.000000 row and column 1 1 meters North American Datum of 1983 Geodectic Reference System 80 6378137.0 298.25722210100002 North American Vertical Datum of 1988 0.0001 meter Attribute values The Climate and Forecast (CF)-compliant metadata in the header of the NetCDF file provides spatial information for projecting the data into a GIS. It also provides information about the conventions used for attributes in the dataset. The entity and attribute information was generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information. U.S. Geological Survey, USGS Southeast Area Davina Passeri Research Mendenhall/Research Civil Engineer mailing address

600 4th Street South

St. Petersburg FL 33701 US 727-502-8014 727-502-8001 dpasseri@usgs.gov Katrina_Initial_Elevations.nc 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. NetCDF NetCDF version 4.3.3.1 Katrina_Initial_Elevations.nc is a NetCDF file that contains the initial model pre-Hurricane Katrina topographic and bathymetric elevations and coordinate information, in meters. The file is zipped and must be unzipped before use https://coastal.er.usgs.gov/data-release/doi-F7KP80CR/data/Katrina_Initial_Elevations.zip None. 20231115 Davina Passeri U.S. Geological Survey, USGS Southeast Area Research Mendenhall/Research Civil Engineer mailing address

600 4th Street South

St. Petersburg FL 33701 US 727-502-8014 727-502-8001 dpasseri@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 None None