Figure 3
From: Classification of monthly tidal envelopes in mixed tide regimes

Monthly tidal envelope patterns calculated for a mixed, mainly semidiurnal tidal regime from the tidal amplitude and phase lag values of 5 major tidal constants (Table 1), and classified according to phase lag differences [\({E}_{A}=\mathrm{cos}({I}_{E})\), \({I}_{E}={({g}_{{K}_{1}}+{g}_{{O}_{1}})-g}_{{M}_{2}}\)]. UTE and LTE denote upper tidal envelope and lower tidal envelope, respectively. STE denotes a near-symmetric tidal envelope. Red and green lines denote the potential maximum upper and lower envelopes (PUE and PLE), calculated from Eqs. (5a), (5b).