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Matteo Bozzano, Domenico Sguerso, Paolo Zatelli, Davide Zendri and Angelo Besana
The availability of digital copies of historical artifacts modeling the territory through the so-called ?plan-reliefs? is important for many reasons: the preservation of the artifact if the physical object is damaged or destroyed, the possibility of crea...
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Emanuele Alcaras, Claudio Parente and Andrea Vallario
Coastal and Marine Geographic Information Systems (CMGISs) permit to collect, manage, and analyze a great amount of heterogeneous data concerning coastal, sea, and ocean environments, e.g., nautical charts, topographic maps, remotely sensed images. To in...
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Yuxin Qin, Xing Fang, Wenxian Zeng and Bin Wang
Datum transformations are a fundamental issue in geodesy, Global Positioning System (GPS) science and technology, geographical information science (GIS), and other research fields. In this study, we establish a general total least squares (TLS) theory wh...
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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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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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