GrandBay_ValidationPeriod_Wave_WaterLevel: Modeling the Effects of Interior Headland Restoration on Estuarine Sediment Transport Processes in a Marine-Dominant Estuary: Delft3D Model Output
The effects of interior headland restoration on estuarine sediment transport processes are assessed through process-based numerical modeling. Three proposed interior headland restoration scenarios in the Grand Bay estuary (Mississippi/Alabama) are modeled using Delft3D (developed by Deltares) to understand impacts on suspended sediment concentrations, bed level morphology and sediment fluxes under present-day conditions and a sea level rise of 0.5 meters (m). Delft3D model output of suspended sediment concentrations (SSC), sediment fluxes, initial and final bed levels, and hydrodynamic data are included in this dataset. Model output from six scenarios (comprised of three restoration (R) alternatives and two sea level (SL) conditions) as forced by 18 climatological wind and wave forcing conditions are included in this data release (Jenkins and others, 2023a). For further information regarding model input generation, set up, and analysis, refer to Jenkins and others (2023b).
Jenkins, Robert L. III, Passeri, Davina L., Smith, Christopher G., and Thompson, David M., 20230810, GrandBay_ValidationPeriod_Wave_WaterLevel: Modeling the Effects of Interior Headland Restoration on Estuarine Sediment Transport Processes in a Marine-Dominant Estuary: Delft3D Model Output:.
This is part of the following larger work.
Jenkins, Robert L. III, Passeri, Davina L., Smith, Christopher G., and Thompson, David M., 20230810, Modeling the Effects of Interior Headland Restoration on Estuarine Sediment Transport Processes in a Marine-Dominant Estuary: Delft3D Model Output: U.S. Geological Survey data release doi:10.5066/P986ZR6B, U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL.
Planar coordinates are encoded using row and column
Abscissae (x-coordinates) are specified to the nearest 5
Ordinates (y-coordinates) are specified to the nearest 5
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.
Altitude_Datum_Name:North American Vertical Datum of 1988 Altitude_Resolution:0.01 Altitude_Distance_Units:meters Altitude_Encoding_Method:Attribute values
Zipped file containing the NetCDF file (.nc) of the processed resultant time-series of water level (meters) and significant wave height (meters) at a set of observational output points from a three-week deterministic Delft3D validation run for the period from 2017/01/03 through 2017/01/23.
(Source: U.S. Geological Survey)
The Climate and Forecast (CF)-compliant metadata (version CF-1.6) in the header of the NetCDF file provides spatial information for projecting the data into a geographic information system (GIS). 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.
Data were generated by the Delft3D model as output to assess effects of interior headland restoration. Appropriate use of this data includes the assessment of morphological, sediment process, and hydrodynamic differences due to the placement of restored features and sea level for the Grand Bay estuary. The GrandBay_ValidationPeriod_Wave_Waterlevel.zip is a dataset that consists of Federal Geographic Data Committee (FGDC) metadata (.txt and .xml) and a Network Common Data Form (NetCDF, .nc) file containing the following variables: coordinates of the time-series observation point (Easting and Northing), and processed resultant time-series of water level (meters) and significant wave height (meters) at a set of observational output points from a three-week deterministic Delft3D validation run for the period from 2017/01/03 through 2017/01/23.
The Delft3D model simulated process-based deterministic hydrodynamics. Model setup is outlined in Jenkins and others (2023b). Boundary conditions in the form of a wind and wave climatology and harmonic water level boundary forcing are also outlined in Jenkins and others (2023b). Output locations of observational points are placed within the model domain. In the course of a three-week Delft3D run, resultant water levels (wl) and significant wave heights (hs), each in meters, are produced and are output at hourly intervals.
Person who carried out this activity:
Robert L Jenkins
U.S. Geological Survey, SOUTHEAST REGION
600 4Th Street South
St. Petersburg, FL
Date: 22-Feb-2023 (process 2 of 2)
Resultant water levels (ssh) and significant wave heights (hs), each in meters, were extracted in MathWorks MATLAB (R2015a) with functions included in the OpenEarth toolbox (provided by Deltares; https://publicwiki.deltares.nl/display/OET/Tools). The resulting hydrodynamic variables from the model grid were then packaged into a NetCDF file (.nc) using the functions available in MATLAB for inclusion in this data release (Jenkins and others, 2023a). The NetCDF was then packaged into a zipped file. Please see the Resource_Description section for more information.
Person who carried out this activity:
Jenkins, R.L., Passeri, D.P., Smith, C.G., Thompson, D.M., and Smith, K.E.L., 2023, Modeling the Effects of Interior Headland Restoration on Estuarine Sediment Transport Processes in a Marine-Dominant Estuary: Frontiers in Marine Science Unknown.
How well have the observations been checked?
A deterministic validation simulation was run for the period of 2017/01/03 through 2017/01/23. Model output was evaluated against observed waves and water levels during that time-period and the model results accurately reproduced the observed conditions. More validation is outlined in greater detail in Jenkins and others (2023b)
How accurate are the geographic locations?
Within the Delft3D model, the horizontal coordinates were projected to the North American Datum of 1983 (NAD83) Universal Transverse Mercator (UTM) Zone 16 North (16N) coordinate system with an estimated resolution of 5 m.
How accurate are the heights or depths?
Within the Delft3D model, the vertical positions were projected to the North American Vertical Datum of 1988 (NAVD88) with an estimated resolution of 0.01 m.
Where are the gaps in the data? What is missing?
These are the complete processed resultant instantaneous water levels (wl) and significant wave heights (hs), each in meters, from the deterministic Delft3D run simulating the period 2017/01/03 through 2017/01/23. 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.
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center as the originator of these data in future products or derivative research.
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.