tidal_sea_surface_height_above_mean_higher_high_water

complete
Created: July 17, 2020
Proposer: Jessica Austin, Micah Wengren and Kathleen Bailey
Proposed Date: 2020-06-22
Standard names: tidal_sea_surface_height_above_mean_lower_low_water and tidal_sea_surface_height_above_mean_higher_high_water
Change Date: July 17, 2020, 9:22 a.m.
Term: tidal_sea_surface_height_above_mean_higher_high_water
Unit: m
Unit ref: ULAA
AMIP:
GRIB:
"Sea surface height" is a time-varying quantity. "Height_above_X" means the vertical distance above the named surface X. "Mean higher high water" is the average of the higher high water height of each tidal day observed at a station over the most recent National Tidal Datum Epoch, which is a 19-year period used to calculate tidal datums.
Change Date: July 17, 2020, 9:22 a.m.
Term: tidal_sea_surface_height_above_mean_higher_high_water
Unit: m
Unit ref: ULAA
AMIP:
GRIB:
"Sea surface height" is a time-varying quantity. "Height_above_X" means the vertical distance above the named surface X. "Mean higher high water" is the arithmetic mean of the higher high water height of each tidal day observed at a station over a 19-year Metonic cycle.
Change Date: Aug. 3, 2020, 11:26 a.m.
Term: tidal_sea_surface_height_above_mean_higher_high_water
Unit: m
Unit ref: ULAA
AMIP:
GRIB:
"Sea surface height" is a time-varying quantity. "Height_above_X" means the vertical distance above the named surface X. "Mean higher high water" is the arithmetic mean of the higher high water height of each tidal day observed at a station over a Tidal Datum Epoch, which is a period of time that is usually greater than 18.6 years to include a full lunar cycle. Tidal datums in certain regions with anomalous sea level changes may be calculated using a shorter, or modified, Tidal Datum Epoch (e.g. 5 years).
Change Date: Oct. 12, 2020, 10:53 a.m.
Term: tidal_sea_surface_height_above_mean_higher_high_water
Unit: m
Unit ref: ULAA
AMIP:
GRIB:
"Sea surface height" is a time-varying quantity. "Height_above_X" means the vertical distance above the named surface X. "Mean higher high water" is the arithmetic mean of the higher high water height of each tidal day observed at a station over a Tidal Datum Epoch, which is a period of time that is usually greater than 18.6 years to include a full lunar cycle. Tidal datums in certain regions with anomalous sea level changes may be calculated using a shorter, or modified, Tidal Datum Epoch (e.g. 5 years). To specify the tidal datum epoch to which the quantity applies, provide a scalar coordinate variable with standard name reference_epoch.