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Lei Shi, Liujuan Tang and Edward Myers
This paper presents an incremental variational method to assimilate the observed tidal harmonic constants using a frequency domain linearized shallow water equation. A cost function was constructed with tidal boundary conditions and tidal forcing as its ...
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Wei Wu, Edward Myers, Lei Shi, Kurt Hess, Michael Michalski and Stephen White
Tidal datums are key components in NOAA?s Vertical Datum transformation project (VDatum), which enables effective vertical transformation of the water level between tidal, orthometric, and ellipsoid -based three-dimensional reference systems. An initial ...
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Liujuan Tang, Edward Myers, Lei Shi, Kurt Hess, Alison Carisio, Michael Michalski, Stephen White and Cuong Hoang
We conducted a VDatum-spatially varying uncertainty study for the North-East Gulf of Mexico. The newly developed tide model incorporated the latest available National Ocean Service (NOS) bathymetry survey data and National Geodetic Survey (NGS) shoreline...
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Lei Shi and Edward Myers
Tidal datums are key components in NOAA?s Vertical Datum transformation project (VDatum). In this paper, we propose a statistical interpolation method, derived from the variational principle, to calculate tidal datums by blending the modeled and the obse...
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Lei Shi, Jindong Wang, Edward Myers and Lijuan Huang
National Oceanic and Atmospheric Administration?s National Ocean Service uses observations, hydrodynamic models and interpolation techniques to develop many of its products and services. We examine how two projects, computation of tidal datums for vertic...
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