Datums for 8570255, KEYDASH, ISLE OF WIGHT BAY MD


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8570255, KEYDASH, ISLE OF WIGHT BAY, MD
Status: Accepted (Dec 22 2003)
Units: Feet
Control Station: 8638610 Sewells Point, VA
T.M.: 75
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW1.83Mean Higher-High Water
MHW1.65Mean High Water
MTL0.89Mean Tide Level
MSL0.93Mean Sea Level
DTL0.91Mean Diurnal Tide Level
MLW0.13Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-4.16Station Datum
GT1.83Great Diurnal Range
MN1.53Mean Range of Tide
DHQ0.18Mean Diurnal High Water Inequality
DLQ0.13Mean Diurnal Low Water Inequality
HWI0.85Greenwich High Water Interval (in hours)
LWI7.08Greenwich Low Water Interval (in hours)
Max Tide3.65Highest Observed Tide
Max Tide Date & Time10/14/1977 09:42Highest Observed Tide Date & Time
Min Tide-3.92Lowest Observed Tide
Min Tide Date & Time01/11/1978 03:12Lowest Observed Tide Date & Time
HATHighest Astronomical Tide
HAT Date & Time HAT Date and Time
LATLowest Astronomical Tide
LAT Date & Time LAT Date and Time
Tidal Datum Analysis Periods
06/01/1977 - 05/31/1978




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