040_Adak, Alaska_United States of America (the)
Datum	Value	Description
Status	14-Nov-2022	Processing Date
Epoch	01-Jan-1983 to 31-Dec-2001	Tidal Datum Analysis Period
MHHW	2.005	Mean Higher-High Water (m)
MHW	1.920	Mean High Water (m)
MTL	1.582	Mean Tide Level (m)
MSL	1.553	Mean Sea Level (m)
DTL	1.489	Mean Diurnal Tide Level (m)
MLW	1.244	Mean Low Water (m)
MLLW	0.973	Mean Lower-Low Water (m)
STND	0.000	Station Datum (m)
GT	1.032	Great Diurnal Range (m)
MN	0.676	Mean Range of Tide (m)
DHQ	0.085	Mean Diurnal High Water Inequality (m)
DLQ	0.271	Mean Diurnal Low Water Inequality (m)
HWI	Unavailable	Greenwich High Water Interval (in hours)
LWI	Unavailable	Greenwich Low Water Interval (in hours)
Maximum	2.957	Highest Observed Water Level (m)
Max Date & Time	29-Dec-1966 00	Highest Observed Water Level Date and Hour (LST)
Minimum	-0.018	Lowest Observed Water Level (m)
Min Date & Time	26-Nov-2003 10	Lowest Observed Water Level Date and Hour (LST)
HAT	2.633	Highest Astronomical Tide (m)
HAT Date & Time	30-Dec-1986 22	HAT Date and Hour (LST)
LAT	0.278	Lowest Astronomical Tide (m)
LAT Date & Time	22-Jun-1986 22	LAT Date and Hour (LST)
LEV	Unavailable	Switch 1 (m)
LEVB	Unavailable	Switch 2 (m)