Rangley C. Mickey Robert L. Jenkins III P. Soupy Dalyander David M. Thompson Nathaniel G. Plant Joseph W. Long 20200228 Raster Digital Data U.S. Geological Survey Data Release doi:10.5066/P9PDM1OJ St. Petersburg, FL U.S. Geological Survey https://doi.org/10.5066/P9PDM1OJ The model input and output of topography and bathymetry values resulting from forecast simulations of coupled modeling scenarios occurring between 2015 and 2025 at Dauphin Island, Alabama, and described in U.S. Geological Survey (USGS) Open-File Report 2020–1001 (https://doi.org/10.3133/ofr20201001), are provided here. For further information regarding model input generation and visualization of model output topography and bathymetry, refer to Mickey and others (2020). These data were generated from the Delft 3D, empirical dune growth (EDGR), and XBeach models to indicate how Dauphin Island evolved over a span of approximately 10 years. The model-derived topographic and bathymetric digital elevation model (DEM) was generated following the simulations of Storminess bin 2 (ST2) with sea level 1 (SL1) scenario and Storminess bin 3 (ST3) with sea level 3 (SL3) scenario, and is included in the download file, R3_Final_DEM.zip, as a Network Common Data Form (NetCDF) file. This dataset consists of Federal Geographic Data Committee (FGDC) metadata and NetCDF files containing the following variables: coordinates of the model grid (Easting and Northing) and the final bathymetry/topography elevation (zend_ST2_SL1_R3 and zend_ST3_SL3_R3) model grids. 20150101 20250101 ground condition Complete As Needed -88.4755524520560 -87.6711236123306 30.6940751670340 29.9718025521135 USGS Metadata Identifier USGS:87e95011-135a-4917-ae8d-0c0e652737ae ISO 19115 Topic Category oceans elevation geoscientificinformation USGS Thesaurus marine geology geomorphology topography bathymetry digital elevation models coastal processes sea-level change sediment transport tides (oceanic) ocean waves None U.S. Geological Survey USGS St. Petersburg Coastal and Marine Science Center SPCMSC alongshore transport decadal morphologic change DEM coastal barrier island 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, Southeast Region Nathaniel G Plant Research Oceanographer mailing address

600 4Th Street South

St. Petersburg FL 33701 United States 727-502-8072 nplant@usgs.gov U.S. Geological Survey Microsoft Windows 7 Enterprise; MATLAB R2016b Mickey, R.C., Godsey, E., Dalyander, P.S., Gonzalez, V., Jenkins, R.L., III, Long, J.W., Thompson, D.M., and Plant, N.G., 2020 U.S. Geological Survey Open-File Report 2020–1001 Reston, VA U.S. Geological Survey https://doi.org/10.3133/ofr20201001 Mickey, R.C., Long, J.W., Dalyander, P.S., Jenkins, R.L., III, Thompson, D.M., Passeri, D.L., and Plant, N.G. 2020 U.S. Geological Survey Open-File Report 2019-1139 Reston, VA U.S. Geological Survey https://doi.org/10.3133/ofr20191139 Jenkins, R.L., III, Long, J.W., Dalyander, P.S., Thompson, D.M., and Mickey, R.C., 2020 U.S. Geological Survey Open-File Report 2020-1011 Reston, VA U.S. Geological Survey https://doi.org/10.3133/ofr20201011 The final DEMs illustrate the forecast model-derived topographic and bathymetric elevations in all model grid cells. These DEMs contain the complete final model grid elevations. 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. These DEMs contain the final model topographic and bathymetric elevations. Within the Delft 3D, EDGR, and XBeach models, the coordinates are in Universal Transverse Mercator (UTM) Zone 16 North. Vertical datum is the North American Vertical Datum of 1988 (NAVD88) with an estimated resolution of 0.01 meters (m). The forecast model simulates a 10-year morphologic change on Dauphin Island with the restoration alternative 3, which results from hydrodynamic impacts and sediment transport with Delft 3D, XBeach, and EDGR models when forced with the ST2_SL1 and ST3_SL3 scenarios. The Delft 3D modeling portion was set up following the description provided in Jenkins and others (2020). Following the steps provided in the XBeach user manual (https://xbeach.readthedocs.io/en/latest/user_manual.html), the model was set up using a params.txt file. Significant wave heights, peak wave periods, and water levels were provided from the synthetic storm scenario described in Mickey and others (2020). The EDGR dune growth model was executed between the Delft 3D and XBeach model simulations and that model was also set up following the description in Mickey and others (2020). The resulting topographic and bathymetric elevations extracted at the end of each scenario were output into NetCDF files. 20190812 Rangley Mickey U.S. Geological Survey Oceanographer Mailing

600 4th Street S

St. Petersburg Florida 33701 USA (727)-502-8115 Model bathymetric and topographic outputs were extracted in Mathworks MATLAB (R2016b) with functions provided in the OpenEarth toolbox (provided by Deltares, https://publicwiki.deltares.nl/display/OET/Tools). The resulting bathymetric and topographic elevations from the model grid were then packaged into NetCDF files, using the export functions available in MATLAB, for inclusion in this data release. 20190812 Rangley Mickey U.S. Geological Survey Oceanographer mailing

600 4th Street South

Saint Petersburg Florida 33701 727-502-8115 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 1367 656 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 Geodetic Reference System 80 6378137.0 298.25722210100002 North American Vertical Datum of 1988 0.0001 meters attribute values The CF-compliant metadata in the header of the NetCDF file provides spatial information for projecting the data into a geographic information system. It also provides information about the conventions used for attributes in the dataset. The entity and attribute information were 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, Southeast Region Nathaniel G Plant Research Oceanographer mailing address

600 4Th Street South

St. Petersburg FL 33701 United States 727-502-8072 727-502-8182 nplant@usgs.gov ST2_SL1_R3.nc ST3_SL3_R3.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 ST2_SL1_R3.nc and ST3_SL3_R3.nc are NetCDF files that contain the final model topographic and bathymetric elevations and coordinate information, in meters. The data download file is compressed and must be unzipped using software such as WinZip, 7zip, PeaZip or pkUnzip before use. https://coastal.er.usgs.gov/data-release/doi-P9PDM1OJ/data/R3_Final_DEM.zip None. No fees are applicable for obtaining the dataset. 20201013 Rangley C Mickey U.S. Geological Survey, Southeast Region Oceanographer mailing address

600 4Th Street South

St. Petersburg FL 33701 United States 727-502-8115 727-502-8182 rmickey@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 None None