Datums for 8447435, Chatham MA

NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8447435, Chatham, MA
Status: Superseded (Apr 17 2003) (Accepted Apr 13 2000)
Units: Feet
Control Station: 8449130 Nantucket Island, MA
T.M.: 0
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW5.20Mean Higher-High Water
MHW4.80Mean High Water
MTL2.49Mean Tide Level
MSL2.53Mean Sea Level
DTL2.60Mean Diurnal Tide Level
MLW0.18Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-3.98Station Datum
GT5.20Great Diurnal Range
MN4.62Mean Range of Tide
DHQ0.40Mean Diurnal High Water Inequality
DLQ0.18Mean Diurnal Low Water Inequality
HWI4.90Greenwich High Water Interval (in hours)
LWI10.67Greenwich Low Water Interval (in hours)
Max Tide9.66Highest Observed Tide
Max Tide Date & Time01/03/2014 18:06Highest Observed Tide Date & Time
Min Tide-2.10Lowest Observed Tide
Min Tide Date & Time01/25/2011 03:12Lowest Observed Tide Date & Time
HAT6.80Highest Astronomical Tide
HAT Date & Time11/27/2034 17:30HAT Date and Time
LAT-1.10Lowest Astronomical Tide
LAT Date & Time01/16/2036 01:30LAT Date and Time
Tidal Datum Analysis Periods
08/18/1994 - 10/17/1994


Products available at 8447435 Chatham, MA