TideHarm

Extract tidal harmonic constituents from water level time series

Scientific AIFree

TideHarm performs harmonic analysis on water level time series to extract amplitudes and phases for up to 68 tidal constituents including M2, S2, N2, K1, O1, and long-period components. The tool applies Rayleigh criterion checks for constituent resolution given record length and implements nodal correction and satellite modulation for 18.6-year lunar cycle effects. Tidal prediction from fitted constituents generates forward-looking tide tables with datum-referenced heights.

Key Features

• ✓68 constituent extraction
• ✓Nodal correction
• ✓Rayleigh criterion checking
• ✓Tide table generation
• ✓Datum reference conversion