Datum | Value | Description |
---|---|---|
MHHW | 7.03 | Mean Higher-High Water |
MHW | 6.46 | Mean High Water |
MTL | 4.26 | Mean Tide Level |
MSL | 4.25 | Mean Sea Level |
DTL | 3.52 | Mean Diurnal Tide Level |
MLW | 2.06 | Mean Low Water |
MLLW | 0.00 | Mean Lower-Low Water |
NAVD88 | ||
STND | -30.20 | Station Datum |
GT | 7.03 | Great Diurnal Range |
MN | 4.40 | Mean Range of Tide |
DHQ | 0.57 | Mean Diurnal High Water Inequality |
DLQ | 2.06 | Mean Diurnal Low Water Inequality |
HWI | 10.56 | Greenwich High Water Interval (in hours) |
LWI | 4.44 | Greenwich Low Water Interval (in hours) |
Max Tide | 10.63 | Highest Observed Tide |
Max Tide Date & Time | 01/02/2003 19:54 | Highest Observed Tide Date & Time |
Min Tide | -4.45 | Lowest Observed Tide |
Min Tide Date & Time | 05/06/2008 20:48 | Lowest Observed Tide Date & Time |
HAT | 9.17 | Highest Astronomical Tide |
HAT Date & Time | 12/23/2026 20:00 | HAT Date and Time |
LAT | -3.65 | Lowest Astronomical Tide |
LAT Date & Time | 06/15/2026 16:48 | LAT Date and Time |
Tidal Datum Analysis Periods |
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01/01/1979 - 12/31/1990 |