Primary Control Tide Station

Science / Tides and Currents / Primary Control Tide Station: A tide station at which continuous observations have been made over a minimum of 19 years. Its purpose is to provide data for computing accepted values of the harmonic and non-harmonic constants essential to tide predictions and to the determination of tidal datums for charting and for coastal and marine boundaries. The data series from this station serves as a primary control for the reduction of relatively short series from subordinate tide stations through the method of comparison of simultaneous observations and for monitoring long-period sea level trends and variations. See tide station, secondary control tide station, tertiary tide station, and subordinate tide station (1).
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Other Words for Control

Control Verb Synonyms: command, dominate, direct, steer, pilot, hold sway over, rule, exercise power or authority over, govern, manage, lead, conduct, be in control (of), call the tune, guide, oversee, supervise
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Other Words for Primary

Primary Adjective Synonyms: firsthand, direct, immediate
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Other Words for Station

Station Noun Synonyms: position, place, status, rank, caste, standing, class, level
Station Adjective Synonyms: place, position, spot, post, site, location
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Primary Recovery

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