Object Class: Tidal stream - non-harmonic prediction

Acronym: TS_PNH (P,A)

Code: 137

Set Attribute_A: NOBJNM; OBJNAM; *T_THDF; *T_MTOD; 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 time and rate differences with respect to a reference station (and associated tidal stream predictions).

References:

INT 1: IH 40-41;

S-4: 407.4; 408.2;

Remarks:

The object 'tidal stream - non-harmonic prediction' encodes information for use when predicting times and rates for tidal streams by non-harmonic methods.

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

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