Mean high water definition

Mean high water means a line of contour representing the 18.6 year average as determined by the metonic cycle and/or its equivalent as evidenced by the records, tidal datum, and methodology of the United States coastal geodetic survey within the national oceanic and atmospheric administration.
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Mean high water means the average height of the high tides over a 19-year period. For shorter periods of observation, “mean high water” means the average height of the high waters after corrections are applied to eliminate known variations and to reduce the result to the equivalent of a mean 19-year value.
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Mean high water means the average of all the high water levels observed over the national tidal datum epoch.
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Examples of Mean high water in a sentence

  • Mean high water neaps are3.0 meter above Chart Datum whereas mean low water neaps are 1.0 meter above Chart Datum.

  • Lower low tide awash Charted depth MLLW = Mean lower low water Rock Drying height MLW = Mean low water Geodetic sea level datum Mean water level MHW = Mean high water Higher high water MHHW = Mean higher high water Driftwood line Storm surge water level Everyone who has visited the seashore knows that seawater moves up and down with tides.

  • Mean high water neap tide ..(+) 2.38 m.(+) 1.49 m(+) 1.07 mMean sea level ..(+) 0.79 mMean low water neap tide .(+) 0.52 mMean low water spring tide(+) 0.09 mChart datum ..0.00 mLowest low water recorded .(-) 0.55 m 5.2.2 Method of ConstructionBoring Boring shall generally be carried out by recommended procedure as set out in IS : 2911 by either rotary or percussion equipment, grabbing equipment or by reverse or direct mud circulation method.

  • Mean high water in the Gasparilla project area is located at elevations of 1.87 feet and 1.42 feet (respectively) National Geodetic Vertical Datum 1929 (NGVD).

  • Mean high water springs, upstream to a point five times the width of the river mouth.


More Definitions of Mean high water

Mean high water means the level of the water surface which is an average of the highest daily tides over a period of at least 29 days.
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Mean high water means the average elevation of all high waters recorded at a particular point or station, based on data obtained from the most recent tidal epoch recorded by the NOAA Liberty Bay tidal station, or that of an official successor agency.
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Mean high water means a line of contour representing the eighteen and six-tenths
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Mean high water means the average height of the high waters over a nineteen (19) year tidal
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Mean high water means the level of the water surface which is an average of the highest daily tides
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Mean high water. Mark means the water level corresponding to the natural or ordinary high water mark and is the line which the water impresses on the soil by covering it for sufficient periods of time to deprive the soil of its terrestrial vegetation and destroy its value for commonly accepted agricultural purposes.
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Mean high water. The average of all the high water heights observed over a specific 19- year period (currently 1983 through 2001) called the National Tidal Datum Epoch. Also termed Mean High Tide.
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