Datum | Value | Description |
---|---|---|
MHHW | 2.78 | Mean Higher-High Water |
MHW | 2.44 | Mean High Water |
MTL | 1.48 | Mean Tide Level |
MSL | 1.48 | Mean Sea Level |
DTL | 1.39 | Mean Diurnal Tide Level |
MLW | 0.52 | Mean Low Water |
MLLW | 0.00 | Mean Lower-Low Water |
NAVD88 | 1.76 | North American Vertical Datum of 1988 |
STND | -1.88 | Station Datum |
GT | 2.79 | Great Diurnal Range |
MN | 1.91 | Mean Range of Tide |
DHQ | 0.35 | Mean Diurnal High Water Inequality |
DLQ | 0.53 | Mean Diurnal Low Water Inequality |
HWI | Greenwich High Water Interval (in hours) | |
LWI | Greenwich Low Water Interval (in hours) | |
Max Tide | Highest Observed Tide | |
Max Tide Date & Time | Highest Observed Tide Date & Time | |
Min Tide | Lowest Observed Tide | |
Min Tide Date & Time | Lowest Observed Tide Date & Time | |
HAT | 3.60 | Highest Astronomical Tide |
HAT Date & Time | 12/06/2025 07:42 | HAT Date and Time |
LAT | -1.07 | Lowest Astronomical Tide |
LAT Date & Time | 12/05/2025 15:12 | LAT Date and Time |
Tidal Datum Analysis Periods |
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01/01/1991 - 05/31/1991 |