052_Johnston_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	1.225	Mean Higher-High Water (m)
MHW	1.150	Mean High Water (m)
MTL	0.874	Mean Tide Level (m)
MSL	0.875	Mean Sea Level (m)
DTL	0.892	Mean Diurnal Tide Level (m)
MLW	0.598	Mean Low Water (m)
MLLW	0.558	Mean Lower-Low Water (m)
STND	0.000	Station Datum (m)
GT	0.668	Great Diurnal Range (m)
MN	0.552	Mean Range of Tide (m)
DHQ	0.075	Mean Diurnal High Water Inequality (m)
DLQ	0.040	Mean Diurnal Low Water Inequality (m)
HWI	Unavailable	Greenwich High Water Interval (in hours)
LWI	Unavailable	Greenwich Low Water Interval (in hours)
Maximum	2.070	Highest Observed Water Level (m)
Max Date & Time	13-Jan-1958 12	Highest Observed Water Level Date and Hour (LST)
Minimum	-0.011	Lowest Observed Water Level (m)
Min Date & Time	23-Mar-1951 22	Lowest Observed Water Level Date and Hour (LST)
HAT	1.479	Highest Astronomical Tide (m)
HAT Date & Time	15-Oct-1989 16	HAT Date and Hour (LST)
LAT	0.347	Lowest Astronomical Tide (m)
LAT Date & Time	17-Mar-1984 22	LAT Date and Hour (LST)
LEV	0.822	Switch 1 (m)
LEVB	0.938	Switch 2 (m)