Using Globally-Corrected GPS Solutions to Assess the Viability of Hydrodynamic Modeling in the Bay of Fundy

摘要: Traditionally, hydrodynamic models are tuned to best reproduce observed tidal constituents within the model domain. Such observations normally limited coastlines at edges of and often in small bays cut off by constrictions that not resolved thus may be representative tides just offshore. Now Globally‐corrected GPS (GcGPS) elevations available decimetre-level accuracy, it is possible test validity open water regions through comparison instantaneous sea level variations from vessel transits. Rather than testing a point location, transects can made critical choke areas where phase amplitude predicted change very rapidly. These check on fidelity these sensitive regions. As part regional mapping operations Bay Fundy under Geoscience for Ocean Mapping program NRCan, four different vessels have been collecting GcGPS using either Fugro Omnistar HP or C-Nav. Post Processed Kinematic (PPK) was also obtained Princess Acadia ferry which crosses daily. Results comparisons long period (minute+) vertical perturbations presented with respect both WebTide Scotian Shelf nested higher resolution models.