With the development of satellite remote sensing, radar altimetry
has been employed to observe ocean tides. Because of
its large and continuous coverage, satellite altimeters provide
excellent data sets for studying ocean tides on global scale,
and many global ocean tidal models have achieved success
by using altimeter data [2]–[6]. However, it is typically more
difficult to model and predict tides in coastal waters than in deep
ocean areas (depth >1000 m). Although tidal models based on
satellite altimeter observations in the open ocean can achieve an
accuracy as precise as 2 cm, it is problematic to use altimeter
data in coastal areas because the spatial resolution of altimeter
observation is not high enough to resolve the coastal tides with
short wavelengths [7]–[9]. In coastal areas, tides are strongly
affected by the bathymetry and shelf morphology, among other
local factors [7], and therefore, tidal observations with high
spatial and temporal resolutions are necessary to understand the
coastal tide dynamics.