Datum | Value | Description |
---|---|---|
MHHW | 5.33 | Mean Higher-High Water |
MHW | 4.62 | Mean High Water |
MTL | 2.83 | Mean Tide Level |
MSL | 2.80 | Mean Sea Level |
DTL | 2.67 | Mean Diurnal Tide Level |
MLW | 1.04 | Mean Low Water |
MLLW | 0.00 | Mean Lower-Low Water |
NAVD88 | 0.08 | North American Vertical Datum of 1988 |
STND | -4.25 | Station Datum |
GT | 5.32 | Great Diurnal Range |
MN | 3.58 | Mean Range of Tide |
DHQ | 0.71 | Mean Diurnal High Water Inequality |
DLQ | 1.04 | Mean Diurnal Low Water Inequality |
HWI | 5.92 | Greenwich High Water Interval (in hours) |
LWI | 11.98 | Greenwich Low Water Interval (in hours) |
Max Tide | 7.65 | Highest Observed Tide |
Max Tide Date & Time | 01/18/1973 09:00 | Highest Observed Tide Date & Time |
Min Tide | -2.40 | Lowest Observed Tide |
Min Tide Date & Time | 01/07/1951 00:00 | Lowest Observed Tide Date & Time |
HAT | 7.11 | Highest Astronomical Tide |
HAT Date & Time | 12/05/2025 17:00 | HAT Date and Time |
LAT | -1.97 | Lowest Astronomical Tide |
LAT Date & Time | 01/11/2005 00:30 | LAT Date and Time |
Tidal Datum Analysis Periods |
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01/01/1983 - 12/31/2001 |