VDatum for the northeast Gulf of Mexico from Mobile Bay, Alabama, to Cape San Blas, Florida : tidal datum modeling and population of the marine grids / E. A. Dhingra, K. W. Hess, S. A. White.

Format:

Book

Government document

Author/Creator:

Dhingra, E. A.

Hess, Kurt W., author.

White, Stephen A. (Stephen Alston), author.

Contributor:

United States. National Oceanic and Atmospheric Administration

Coast Survey Development Laboratory (U.S.)

Series:

NOAA technical memorandum NOS CS ; 14.

NOAA technical memorandum NOS CS ; 14

Language:

English

Subjects (All):

Tides--America, Gulf of.

Tides.

Hydrographic surveying--America, Gulf of.

Hydrographic surveying.

Numerical grid generation (Numerical analysis)--Computer simulation.

Numerical grid generation (Numerical analysis).

Hydrodynamics--Mathematical models.

Hydrodynamics.

Gulf of America.

Physical Description:

1 online resource (viii, 64 pages) : illustrations, color maps.

Other Title:

Tidal datum modeling and population of the marine grids

Place of Publication:

[Silver Spring, Md.] : U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, Office of Coast Survey, Coast Survey Development Laboratory, [2008]

Summary:

To enable conversion between tidal, orthometric, and three-dimensional datums, a vertical datum transformation tool, VDatum, has been designed through a collaboration of NOAA's National Geodetic Survey (NGS), Center for Operational Oceanographic Products and Services (COOPS), and the Office of Coast Survey's (OCS) Coast Survey Development Laboratory (CSDL). The datum transformations already available in the VDatum toolbox include the transformation among three-dimensional datums, among orthometric datums, and between the three dimensional datums and orthometric datums. This report chronicles the continuing work to determine the datum transformations among tidal datums and between the tidal datums and the orthometric datums. The focus of this work is on the area from Mobile Bay, Alabama, in the west to Cape San Blas, Florida, in the east. A hydrodynamic model was created to simulate the astronomical tides in this area. The model results were corrected, using a spatial interpolation method, to match the model results to data at NOS tide stations. The final datums were used to populate a VDatum marine grid. The sea surface topography, or the difference between local mean sea level and the North American Vertical Datum of 1988 (NAVD 88) geopotential surface was modeled throughout this region and incorporated in the final VDatum software package.

Contents:

Introduction

Data sources

Tidal datum modeling

Interpolation of errors

Creation of the Vdatum marine grid and population with datums

Topography of the sea surface

Quality control and testing

Appendix A. Unused tide stations

Appendix B. Sources of bathymetric data

Appendix C. Tide station data and model results

Appendix D. Final tidal datum fields in the Vdatum region

Appendix E. Estimates of NAVD88 at benchmarks

Appendix F. Computed delta values for each datum

Appendix G. Comparison of observed and computed NAVD88 values.

Notes:

Title from PDF title screen (viewed Dec. 22, 2011).

"August 2008."

Includes bibliographical references (pages 33-34).

OCLC:

774407040