Idealized Antecedent Topography Sensitivity Study: Initial Baseline and Modified Profiles Modeled with XBeach

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Frequently anticipated questions:

What does this data set describe?

Title:
Idealized Antecedent Topography Sensitivity Study: Initial Baseline and Modified Profiles Modeled with XBeach
Abstract:
Antecedent topography is an important aspect of coastal morphology when studying and forecasting coastal change hazards. The uncertainty in morphologic response of storm-impact models and their use in short-term hazard forecasting and decadal forecasting is important to account for when considering a coupled model framework. Mickey and others (2020) provided a methodology to investigate uncertainty of profile response within the storm impact model, XBeach, related to varying antecedent topographies. A parameterized island Gaussian fit (PIGF) model generated an idealized baseline profile and a suite of idealized profiles that vary specific characteristics based on collated observed light detection and ranging (lidar) data collected from Dauphin Island, AL, between 2005 and 2015. The model inputs of idealized topography and bathymetry values for simulation of synthetic storm evolution with XBeach are described in Mickey and others (2020) and included in this USGS data release.
  1. How might this data set be cited?
    Mickey, Rangley C., Dalyander, P. Soupy, McCall, Robert, and Passeri, Davina L., 20201016, Idealized Antecedent Topography Sensitivity Study: Initial Baseline and Modified Profiles Modeled with XBeach: U.S. Geological Survey Data Release doi:10.5066/P9VD60JC, U.S. Geological Survey, St. Petersburg, FL.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -88.2983394062496
    East_Bounding_Coordinate: -88.2991180886776
    North_Bounding_Coordinate: 30.2397297439563
    South_Bounding_Coordinate: 30.1804426054335
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: Sep-2005
    Ending_Date: Jan-2015
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: Raster Digital Data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      Indirect_Spatial_Reference: Gulf of Mexico
      This is a Raster data set. It contains the following raster data types:
      • Dimensions 738 x 1 x 1, type Grid cell
    2. What coordinate system is used to represent geographic features?
      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 16
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -87.000000
      Latitude_of_Projection_Origin: 0.000000
      False_Easting: 500000.000000
      False_Northing: 0.000000
      Planar coordinates are encoded using Row and Column
      Abscissae (x-coordinates) are specified to the nearest 1
      Ordinates (y-coordinates) are specified to the nearest 1
      Planar coordinates are specified in meters
      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.25722210100002.
      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Datum_Name: North American Vertical Datum of 1988
      Altitude_Resolution: 0.0001
      Altitude_Distance_Units: meters
      Altitude_Encoding_Method: attribute values
  7. How does the data set describe geographic features?
    Entity_and_Attribute_Overview:
    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.
    Entity_and_Attribute_Detail_Citation:
    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.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Rangley C. Mickey
    • P. Soupy Dalyander
    • Robert McCall
    • Davina L. Passeri
  2. Who also contributed to the data set?
    U.S. Geological Survey
  3. To whom should users address questions about the data?
    U.S. Geological Survey, Southeast Region
    Attn: Rangley C. Mickey
    Physical Scientist
    600 4Th Street South
    St. Petersburg, FL
    United States

    727-502-8115 (voice)
    rmickey@usgs.gov

Why was the data set created?

These data were generated to examine the sensitivity of storm response in the XBeach model to varying antecedent topography of a barrier island. The merged, one-dimensional (1D) topographic and bathymetric profile for the baseline idealized profile is included in the download file, Initial_Model_Baseline.zip, as a Network Common Data Form (NetCDF) file. This dataset consists of Federal Geographic Data Committee (FGDC) metadata and a NetCDF file, Initial_Model_Baseline.nc, containing the following variables: coordinates of the model domain (Easting and Northing) and the initial bathymetry/topography elevation (z) of the baseline model profile. All other NetCDF files contain the same variables but for a modified version of the baseline profile (last part of file name corresponds to modified profile characteristic).

How was the data set created?

  1. From what previous works were the data drawn?
    OFR2017-1031 (source 1 of 5)
    Thompson, D.M., Dalyander, P.S., Long, J.W., and Plant, N.G., 20170407, Correction of elevation offsets in multiple co-located lidar datasets: U.S. Geological Survey Open-File Report 2007-1031, U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: Online digital data
    Source_Contribution:
    Topographic data used to generate initial baseline and modified profiles.
    DR F7KP80CR (source 2 of 5)
    Passeri, D.L., Long, J.W., Plant, N.G., Bilskie, M.V., and Hagen, S.C., 20170609, XBeach bottom friction scenarios: Model inputs and results: U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: Online digital data
    Source_Contribution:
    Topographic data used to generate initial baseline and modified profiles.
    USGS Data Series 769 (source 3 of 5)
    Danielson, J.J., Brock, J.C., Howard, D.M., Gesch, D.B., Bonisteel-Cormier, J.M., and Travers, L.J., 20130919, Topobathymetric model of Mobile Bay, Alabama: U.S. Geological Survey, Reston, VA.

    Online Links:

    Type_of_Source_Media: Online digital data
    Source_Contribution:
    Bathymetry data used to generate initial digital elevation model (DEM) bathymetry.
    none (source 4 of 5)
    Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM), U.S. Geological Survey (USGS), and National Aeronautics and Space Administration (NASA), 20160523, 1998 NASA/NOAA/USGS ATM Lidar: Gulf Coast (LA, MS, AL, FL) point cloud files with orthometric vertical datum North American Vertical Datum of 1988 (NAVD88) using GEOID12A: NOAA's Ocean Service, Office for Coastal Management (OCM), Charleston, SC.

    Online Links:

    Type_of_Source_Media: Online digital data
    Source_Contribution:
    Lidar data used to generate initial pre-Hurricane Ivan DEM topography.
    none (source 5 of 5)
    U.S. Geological Survey (USGS), National Aeronautics and Space Administration (NASA), and Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM), 20160523, 2001 USGS Coastal Lidar: Gulf of Mexico (TX to FL) point cloud files with orthometric vertical Datum NAVD88 using GEOID12A: NOAA's Ocean Service, Office for Coastal Management (OCM), Charleston, SC.

    Online Links:

    Type_of_Source_Media: Online digital data
    Source_Contribution:
    Lidar data used to generate initial pre-Hurricane Ivan DEM topography.
  2. How were the data generated, processed, and modified?
    Date: 2018 (process 1 of 3)
    Mathworks MATLAB (R2016b) was used generate the baseline profile using methods outlined in Mickey and others (2020), using all topographic and bathymetric data provided in the source lineage. The baseline profile was modified by changing specific values of equation 1 in Mickey and others (2020) to generate 13 additional profiles that differ from the baseline by one characteristic value provided in table 1 of Mickey and others (2020). Person who carried out this activity:
    Rangley C. Mickey
    U.S. Geological Survey
    Physical Scientist
    600 4th Street South
    Saint Petersburg, Florida

    727-502-8115 (voice)
    Date: 2018 (process 2 of 3)
    Mathworks MATLAB (R2016b) was used to merge and interpolate the baseline/modified profile bathymetric and topographic data onto the model grid coordinate system following the methods outlined in Mickey and others (2020), using all topographic and bathymetric data provided in the source lineage. Person who carried out this activity:
    Rangley C. Mickey
    U.S. Geological Survey
    Physical Scientist
    600 4th Street South
    Saint Petersburg, Florida

    727-502-8115 (voice)
    Date: 10-Nov-2020 (process 3 of 3)
    Added keywords section with USGS persistent identifier as theme keyword. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Arnell S. Forde
    Geologist
    600 4th Street South
    St. Petersburg, FL

    (727) 502-8000 (voice)
    aforde@usgs.gov
  3. What similar or related data should the user be aware of?
    Mickey, R.C., Dalyander, P.S., McCall, R., and Passeri, D. L., 2020, Sensitivity of Storm Response to Antecedent Topography in the XBeach Model: Journal of Marine Science and Engineering Unknown.

    Online Links:

    • Unknown

    Passeri, D.L., Long, J.W., Plant, N.G., Bilskie, M.V., and Hagen, S.C., 20171206, The influence of bed friction variability due to land cover on storm-driven barrier island morphodynamics: Coastal Engineering Volume 132.

    Online Links:

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
    These profiles contain the initial model topographic and bathymetric elevations. Within the XBeach model, the coordinates are in Universal Transverse Mercator (UTM) Zone 16 North.
  3. How accurate are the heights or depths?
    Vertical datum is the North American Vertical Datum of 1988 (NAVD88) with an estimated resolution of 0.01 meters (m).
  4. Where are the gaps in the data? What is missing?
    These profiles contain the complete initial 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.
  5. How consistent are the relationships among the observations, including topology?
    The initial baseline and modified profiles, which serve as an input for the XBeach model, indicate topographic and bathymetric elevations in all model grid cells.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
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.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey, Southeast Region
    Attn: Rangley C. Mickey
    Physical Scientist
    600 4Th Street South
    St. Petersburg, FL
    United States

    727-502-8115 (voice)
    727-502-8182 (FAX)
    rmickey@usgs.gov
  2. What's the catalog number I need to order this data set? Initial_Model_Baseline.nc Initial_Model_LowBeachWidth.nc Initial_Model_HighBeachWidth.nc Initial_Model_HighBerm.nc Initial_Model_LowBerm.nc Initial_Model_HighDuneHeight.nc Initial_Model_LandwardDune.nc Initial_Model_ShorewardDune.nc Initial_Model_LowDuneWidth.nc Initial_Model_HighDuneWidth.nc Initial_Model_LowIslandCentroidHeight.nc Initial_Model_HighIslandCentroidHeight.nc Initial_Model_LowBeachSlope.nc Initial_Model_HighBeachSlope.nc
  3. What legal disclaimers am I supposed to read?
    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.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 10-Nov-2020
Metadata author:
Rangley C. Mickey
U.S. Geological Survey, Southeast Region
Physical Scientist
600 4Th Street South
St. Petersburg, FL
United States

727-502-8115 (voice)
727-502-8182 (FAX)
rmickey@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/Idealized_Profile_metadata.faq.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:18:50 2021