Object Class: Tidal stream - harmonic prediction

Acronym: TS_PRH (P,A)

Code: 136

Set Attribute_A: NOBJNM; OBJNAM; *T_MTOD; *T_VAHC; STATUS;

Set Attribute_B: INFORM; NINFOM; NTXTDS; SCAMAX; SCAMIN; TXTDSC;

Set Attribute_C: RECDAT; RECIND; SORDAT; SORIND;

Definition:

A tidal stream (or tidal current) is an alternating horizontal movement of water associated with the rise and fall of the tide caused by tide-producing forces. (IHO Dictionary, S-32, 5th Edition, 1169)

Predicted tidal stream rates may be calculated using parameters (harmonic constituents) and an appropriate harmonic calculation algorithm.

References:

INT 1: IH 40-41;

S-4: 407.4; 408.2;

Remarks:

The object 'tidal stream - harmonic prediction' encodes parameters for use when predicting tidal streams by harmonic methods.

The supplier of any parameters must be consulted on how to use data provided using this object class, and which calculation algorithms to use with the data.

Distinction: current - non-gravitational; tidal stream - non-harmonic prediction; tidal stream panel data; tidal stream - time series;