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Development and Use of Tide Models in Alaska Supporting VDatum and Hydrographic Surveying

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Coast Survey Development Laboratory, National Ocean Service, National Oceanic and Atmospheric Administration, 1315 East-West Highway, Silver Spring, MD 20910, USA
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Earth Resources Technology, Inc., 14401 Sweitzer Lane, Suite 300, Laurel, MD 20707, USA
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Center for Operational Oceanographic Products and Services, National Ocean Service, National Oceanic and Atmospheric Administration, 1305 East-West Highway, Silver Spring, MD 20910, USA
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The Baldwin Group, 8573-D Sudley Road, Manassas, VA 20110, USA
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Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2014, 2(1), 171-193; https://doi.org/10.3390/jmse2010171
Received: 29 November 2013 / Revised: 25 January 2014 / Accepted: 8 February 2014 / Published: 10 March 2014
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 vertical datum transformation and the estimation of tidal characteristics for hydrographic surveys, are being developed in Alaska and how they may be more seamlessly integrated. Preliminary VDatum development for Alaska is in progress for the Alaska Panhandle through the setup of a high resolution tide model that will be used to compute spatially varying tidal datums. Tide models such as these can be used for other projects that traditionally rely on estimation of tides in between data locations, such as the planning for hydrographic surveys that need correctors to adjust bathymetry to the chart datum. We therefore also examine how an existing model in western Alaska can be used for better supporting hydrographic survey planning. The results show that integration of tide models with nearshore observations can provide improved information for these correctors and future work will further evaluate this methodology with existing VDatum tide models. View Full-Text
Keywords: VDatum; tides; hydrodynamic model; finite element method; hydrographic survey; Alexander Archipelago; Alaska; Bering Sea VDatum; tides; hydrodynamic model; finite element method; hydrographic survey; Alexander Archipelago; Alaska; Bering Sea
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Shi, L.; Wang, J.; Myers, E.; Huang, L. Development and Use of Tide Models in Alaska Supporting VDatum and Hydrographic Surveying. J. Mar. Sci. Eng. 2014, 2, 171-193.

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