The NOAA Tide & Gravity Observatory
Empirical coupling of lunar gravitational harmonics (M₂, N₂) against real-time hydrodynamic gauge measurements.
🔭OBSERVED
Tide Classification
Semidiurnal
Mean Tidal Range
1.62 meters
Spring Syzygy Range
1.95 meters
Perigean King Tide
2.34 m (1.44x)
24-Hour Hydrograph: Astronomical Tide vs. Observed Water Level (Meters)
Astronomical Prediction Measured Water Level
Simulate Storm Surge Residual:+0.20 m
NOAA CO-OPS Live Station #8665530