USCG Exam PracticeTides and currents — predictions and corrections
When using NOAA Tide Tables to obtain a prediction for a subordinate station, which procedure is correct?
- A. Use the subordinate station's own independently published tide times without adjustment
- B. Apply the reference station's time and height differences directly to the subordinate station's charted sounding
- C. Average the predictions of the two nearest reference stations
- ✓ Apply the tabulated time and height differences from the subordinate station table to the reference station predictionCorrect
Why D is correct
Bowditch Ch. 9 §905 states that predictions for a subordinate station are obtained by applying the tabulated time and height differences to the reference station prediction. No averaging of reference stations is prescribed.
Cited:Bowditch Ch. 9 §905