Davina L. Passeri
Joseph W. Long
Robert L. Jenkins
David M. Thompson
20180828
Mobile Harbor Navigation Channel Delft3D Model Inputs and Results - Initial Project Conditions Grid
raster digital data
U.S. Geological Survey Data Release
doi:10.5066/P9SS1DJW
St. Petersburg, FL
U.S. Geological Survey
https://doi.org/10.5066/P9SS1DJW
The numerical model Delft3D (developed by Deltares) was developed to evaluate the potential effects of proposed navigation channel deepening and widening in Mobile Harbor, Alabama (AL). The Delft3D model setup requires the input of a merged topographic and bathymetric elevations, a wave climate based on significant wave heights, peak wave period and mean wave direction, and a tidal-time series. The model was validated by comparing model outputs from deterministic runs with observations of water levels and velocities. The validated model was used to simulate scenarios of existing conditions and proposed with-project conditions (for example, channel deepening and widening). Simulations were performed for one year (the year 2010) and ten years, with and without 0.5 meters (m) of sea level rise. Model inputs and outputs in the form of topography and bathymetry for the scenario runs as well as output water levels and velocities for the deterministic runs are provided in this data release. For further information regarding model input generation and visualization of model output topography and bathymetry, refer to USGS Open-File Report 2018-1123.
These data were generated for the Delft3D model to evaluate the potential effects of proposed navigation channel deepening and widening in Mobile Harbor, AL. Project_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 bathymetric/topographic (z) model elevation values, in meters, for the simulations of with-project conditions.
20180828
publication date
As needed
-88.4612126529462
-87.6748359827091
30.697486
29.969949
USGS Metadata Identifier
USGS:aa66687d-b16d-4c79-9ec0-91ba6acf272b
None
U.S. Geological Survey
USGS
St. Petersburg Coastal and Marine Science Center
SPCMSC
morphologic change
estuaries
coastal
marine sediment transport
ISO 19115 Topic Category
oceans
elevation
geoscientificInformation
USGS Thesaurus
marine geology
geomorphology
topography
bathymetry
coastal ecosystems
estuarine ecosystems
digital elevation models
sea-level change
ocean processes
sediment transport
Geographic Names Information System (GNIS) Content
Gulf of Mexico
Alabama
North America
United States of America
Mobile Bay
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 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; MATLAB R2015a
Passeri, D.L., Long, J.W., Jenkins, R.J., Thompson, D.M.
20180828
Effects of Proposed Navigation Channel Improvements on Sediment Transport in Mobile Harbor, Alabama
U.S. Geological Survey Open-File Report
2018-1123
https://doi.org/10.3133/ofr20181123
Plant, N.G., Holland, K.T., Puleo, J.A.
2002
Analysis of the scale of errors in nearshore bathymetric data
Marine Geology
Volume 191, Issue 1-2, November 2002, pg. 71-86.
https://doi.org/10.1016/S0025-3227(02)00497-8.
The project initial elevations are topographic and bathymetric elevations at each model grid cell for with-project conditions and serve as input for each of the simulations of with-project conditions.
These are the complete initial model grid elevations for the simulations of with-project conditions. 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 model elevations are the initial topographic and bathymetric elevations for the simulations of with-project conditions.
Within the Delft3D model, the coordinates are in Universal Transverse Mercator (UTM).
Vertical datum is in the 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
Topobathymetric model of Mobile Bay, Alabama
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 elevations.
DeWitt, N.T., Stalk, C.A., Flocks, J.G., Bernier, J.C., Kelso, K.W., Fredericks, J.J., and Tuten, T.
20171130
Single-beam bathymetry data collected in 2015 nearshore Dauphin Island, Alabama
St. Petersburg, FL
U.S. Geological Survey
https://doi.org/10.5066/F7BZ648W
Online digital data
201508
ground condition
none
Bathymetry data used to generate the initial elevations.
U.S. Geological Survey
20161018
USGS Lidar Point Cloud LA SoTerrebonne-GI 2015 15RCU7060 LAS 2016
Reston, VA
U.S. Geological Survey
http://nationalmap.gov/viewer.html
Online digital data
20150118
20150213
ground condition
none
Lidar data used to generate initial topographic elevations.
Mathworks MATLAB (R2015a) was used to merge and interpolate bathymetric data from Danielson and others (2013) and DeWitt and others (2017), and topographic lidar survey data from the U.S. Geological Survey (Lidar Point Cloud LA SoTerrebonne-GI 2015 15RCU7060 LAS 2016) onto the Delft3D model grid following the controlled interpolation methods of Plant and others, 2002.
This merged topographic and bathymetric dataset provides the intial, with-project model elevations.
2017
Davina Passeri
U.S. Geological Survey
Research Civil Engineer
mailing and physical address
600 4th Street S
St. Petersburg
FL
33701
USA
(727)-502-8014
(727)-502-8001
dpasseri@usgs.gov
Model bathymetric and topographic output was extracted in Mathworks MATLAB (R2015a) with functions included 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 a NetCDF file using the functions available in MATLAB for inclusion in this data release.
2018
Davina Passeri
U.S. Geological Survey
Research Civil Engineer
mailing and physical address
600 4th Street S
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
1368
657
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 geographic information system. 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 Civil Engineer
mailing address
600 4th Street South
St. Petersburg
FL
33701
US
727-502-8014
727-502-8001
dpasseri@usgs.gov
Project_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
4.3.3.1
Project_Initial_Elevations.nc is a NetCDF file that contains the initial topographic and bathymetric elevations and coordinate information, in meters, for the simulations of with-project conditions.
The file is zipped and must be unzipped before use.
https://coastal.er.usgs.gov/data-release/doi-P9SS1DJW/data/Project_Initial_Elevations.zip
None.
20201013
Davina Passeri
U.S. Geological Survey, USGS Southeast Area
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