VDATUM for the San Juan Islands and the Strait of Juan de Fuca with Updates for Puget Sound: Tidal Datum Modeling and Population of the Grids.

摘要

The generation and population of the VDatum marine grids for the Strait of Juan de Fuca, Northern Puget Sound and Southern Puget Sound are discussed. For the Strait of Juan de Fuca region, the tidal datum information used to populate the VDatum marine grids came from a harmonic constant data set derived from a hydrodynamic model of the area developed at Fisheries & Oceans Canada Institute of Ocean Sciences. For the northern and southern reaches of Puget Sound, beyond the extent of the hydrodynamic model, a spatial interpolation of the datums computed at NOAA water level stations was used to determine tidal datum fields. The model of southern Puget Sound is an update to a previously generated spatial interpolation from 2004. All three sources were then used to populate the VDatum marine grids for those regions. A continuous topography of the sea surface was calculated across the three regions for inclusion in the VDatum software package.