Datum | Value | Description |
---|---|---|
MHHW | 8.37 | Mean Higher-High Water |
MHW | 7.68 | Mean High Water |
MTL | 4.42 | Mean Tide Level |
MSL | 4.37 | Mean Sea Level |
DTL | 4.19 | Mean Diurnal Tide Level |
MLW | 1.15 | Mean Low Water |
MLLW | 0.00 | Mean Lower-Low Water |
NAVD88 | ||
STND | -20.80 | Station Datum |
GT | 8.37 | Great Diurnal Range |
MN | 6.53 | Mean Range of Tide |
DHQ | 0.70 | Mean Diurnal High Water Inequality |
DLQ | 1.15 | Mean Diurnal Low Water Inequality |
HWI | 8.63 | Greenwich High Water Interval (in hours) |
LWI | 2.81 | 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 | 10.52 | Highest Astronomical Tide |
HAT Date & Time | 12/05/2025 20:24 | HAT Date and Time |
LAT | -2.60 | Lowest Astronomical Tide |
LAT Date & Time | 12/06/2025 03:42 | LAT Date and Time |
Tidal Datum Analysis Periods |
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07/01/2017 - 09/30/2017 |