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Datums for 8638901, CBBT, Chesapeake Channel VA


NOTICE OF PROVISIONAL DATUM These datums and any data referred to said datum are PROVISIONAL and subject to revision until they have been thoroughly reviewed and received final approval. Subsequent review based on field inspections and additional measurements may result in revisions to the data and datums. Data users are cautioned to consider the conditional nature of this information before using it for critical decisions such as those that concern physical or public safety. Only after meeting all standards for quality control assurance will the datums be classified as Accepted Datums.

Elevations on Station Datum

Station: 8638901, CBBT, Chesapeake Channel, VA
Status: Accepted (Oct 20 2017)
Units: Feet
T.M.: 0
Epoch: 1983-2001
Datum: STND
DatumValueDescription
MHHW7.31Mean Higher-High Water
MHW7.06Mean High Water
MTL5.74Mean Tide Level
MSL5.76Mean Sea Level
DTL5.79Mean Diurnal Tide Level
MLW4.41Mean Low Water
MLLW4.28Mean Lower-Low Water
NAVD88
STND0.00Station Datum
GT3.02Great Diurnal Range
MN2.65Mean Range of Tide
DHQ0.25Mean Diurnal High Water Inequality
DLQ0.12Mean Diurnal Low Water Inequality
HWI0.66Greenwich High Water Interval (in hours)
LWI6.94Greenwich Low Water Interval (in hours)
MaximumHighest Observed Water Level
Max Date & Time Highest Observed Water Level Date and Time
MinimumLowest Observed Water Level
Min Date & Time Lowest Observed Water Level Date and 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
05/01/2017 - 06/30/2017
09/01/2017 - 09/30/2017




Products available at 8638901 CBBT, Chesapeake Channel, VA

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services