Datum | Value | Description |
---|---|---|
MHHW | 9.14 | Mean Higher-High Water |
MHW | 8.40 | Mean High Water |
MTL | 4.90 | Mean Tide Level |
MSL | 4.87 | Mean Sea Level |
DTL | 4.57 | Mean Diurnal Tide Level |
MLW | 1.40 | Mean Low Water |
MLLW | 0.00 | Mean Lower-Low Water |
NAVD88 | 1.12 | North American Vertical Datum of 1988 |
STND | -3.00 | Station Datum |
GT | 9.14 | Great Diurnal Range |
MN | 7.01 | Mean Range of Tide |
DHQ | 0.74 | Mean Diurnal High Water Inequality |
DLQ | 1.39 | Mean Diurnal Low Water Inequality |
HWI | 8.56 | Greenwich High Water Interval (in hours) |
LWI | 2.08 | Greenwich Low Water Interval (in hours) |
Max Tide | 13.15 | Highest Observed Tide |
Max Tide Date & Time | 01/04/2022 01:30 | Highest Observed Tide Date & Time |
Min Tide | -3.61 | Lowest Observed Tide |
Min Tide Date & Time | 05/07/2008 15:36 | Lowest Observed Tide Date & Time |
HAT | 11.24 | Highest Astronomical Tide |
HAT Date & Time | 12/23/1999 20:42 | HAT Date and Time |
LAT | -2.43 | Lowest Astronomical Tide |
LAT Date & Time | 05/25/1990 15:00 | LAT Date and Time |
Tidal Datum Analysis Periods |
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01/01/2007 - 12/31/2009 |
10/01/2010 - 09/30/2014 |
07/01/2015 - 06/30/2019 |