Datums for 8665111, SOUTH DEWEES ISLAND, DEWEES INLET SC

NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8665111, SOUTH DEWEES ISLAND, DEWEES INLET, SC
Status: Superseded (Apr 17 2003) (Accepted Feb 4 1994)
Units: Feet
Control Station:
T.M.: 75
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW5.53Mean Higher-High Water
MHW5.16Mean High Water
MTL2.67Mean Tide Level
MSL2.74Mean Sea Level
DTL2.76Mean Diurnal Tide Level
MLW0.19Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND0.33Station Datum
GT5.53Great Diurnal Range
MN4.97Mean Range of Tide
DHQ0.37Mean Diurnal High Water Inequality
DLQ0.19Mean Diurnal Low Water Inequality
HWI0.35Greenwich High Water Interval (in hours)
LWI6.29Greenwich Low Water Interval (in hours)
Max Tide7.45Highest Observed Tide
Max Tide Date & Time11/21/1976 07:18Highest Observed Tide Date & Time
Min Tide-1.77Lowest Observed Tide
Min Tide Date & Time02/07/1976 14:48Lowest 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


Products available at 8665111 SOUTH DEWEES ISLAND, DEWEES INLET, SC
  • Meteorological/Other
  • Meteorological Observations
  • Water Temp/Conductivity
  • PORTS®
  • This station is not a member of PORTS®