Datums for 8554399, Mahon River Entrance DE

NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8554399, Mahon River Entrance, DE
Status: Superseded (Apr 17 2003) (Accepted Apr 8 2003)
Units: Feet
Control Station: 8557380 Lewes, DE
T.M.: 75
Epoch: 1960-1978
Datum: MLLW
DatumValueDescription
MHHW6.05Mean Higher-High Water
MHW5.61Mean High Water
MTL2.90Mean Tide Level
MSL2.94Mean Sea Level
DTL3.03Mean Diurnal Tide Level
MLW0.19Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-7.91Station Datum
GT6.05Great Diurnal Range
MN5.42Mean Range of Tide
DHQ0.44Mean Diurnal High Water Inequality
DLQ0.19Mean Diurnal Low Water Inequality
HWI2.13Greenwich High Water Interval (in hours)
LWI8.66Greenwich Low Water Interval (in hours)
Max TideHighest Observed Tide
Max Tide Date & Time Highest Observed Tide Date & Time
Min TideLowest Observed Tide
Min Tide Date & Time Lowest Observed Tide Date & Time
HAT7.20Highest Astronomical Tide
HAT Date & Time05/07/2012 02:42HAT Date and Time
LAT-1.17Lowest Astronomical Tide
LAT Date & Time02/12/2032 09:18LAT Date and Time
Tidal Datum Analysis Periods
05/01/2001 - 08/31/2001


Products available at 8554399 Mahon River Entrance, DE
  • Meteorological/Other
  • Meteorological Observations
  • Water Temp/Conductivity
  • PORTS®
  • This station is not a member of PORTS®