Datum | Value | Description |
---|---|---|
MHHW | 7.98 | Mean Higher-High Water |
MHW | 7.60 | Mean High Water |
MTL | 3.91 | Mean Tide Level |
MSL | 4.32 | Mean Sea Level |
DTL | 3.99 | Mean Diurnal Tide Level |
MLW | 0.21 | Mean Low Water |
MLLW | 0.00 | Mean Lower-Low Water |
NAVD88 | 4.43 | North American Vertical Datum of 1988 |
STND | -3.06 | Station Datum |
GT | 7.98 | Great Diurnal Range |
MN | 7.39 | Mean Range of Tide |
DHQ | 0.38 | Mean Diurnal High Water Inequality |
DLQ | 0.21 | Mean Diurnal Low Water Inequality |
HWI | 1.65 | Greenwich High Water Interval (in hours) |
LWI | 7.75 | Greenwich Low Water Interval (in hours) |
Max Tide | 11.44 | Highest Observed Tide |
Max Tide Date & Time | 09/04/1979 21:30 | Highest Observed Tide Date & Time |
Min Tide | -2.37 | Lowest Observed Tide |
Min Tide Date & Time | 12/24/1983 19:12 | Lowest Observed Tide Date & Time |
HAT | 9.80 | Highest Astronomical Tide |
HAT Date & Time | 10/27/2011 13:48 | HAT Date and Time |
LAT | -1.35 | Lowest Astronomical Tide |
LAT Date & Time | 02/20/2015 08:42 | LAT Date and Time |
Tidal Datum Analysis Periods |
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01/01/1978 - 12/31/1984 |