surface_carbon_dioxide_natural_analogue_partial_pressure_difference_between_sea_water_and_air

complete
Created: Oct. 9, 2018
Proposer: Roy Lowry / Jim Orr
Proposed Date: 2018-10-05
Update description of 'partial pressure' for consistency with new 'fugacity' name.
Change Date: Oct. 9, 2018, 2:54 p.m.
Term: surface_carbon_dioxide_natural_analogue_partial_pressure_difference_between_sea_water_and_air
Unit: Pa
Unit ref: PASX
AMIP:
GRIB:
The surface called "surface" means the lower boundary of the atmosphere. The chemical formula for carbon dioxide is CO2. In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings. The partial pressure of a gaseous constituent of air is the pressure which it alone would exert with unchanged temperature and number of moles per unit volume. The partial pressure of a dissolved gas in sea water is the partial pressure in air with which it would be in equilibrium. The partial pressure difference between sea water and air is positive when the partial pressure of the dissolved gas in sea water is greater than the partial pressure in air.
Change Date: Oct. 9, 2018, 2:56 p.m.
Term: surface_carbon_dioxide_natural_analogue_partial_pressure_difference_between_sea_water_and_air
Unit: Pa
Unit ref: PASX
AMIP:
GRIB:
The surface called "surface" means the lower boundary of the atmosphere. The chemical formula for carbon dioxide is CO2. In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings. The partial pressure of a dissolved gas in sea water is the partial pressure in air with which it would be in equilibrium. The partial pressure of a gaseous constituent of air is the pressure that it would exert if all other gaseous constituents were removed, assuming the volume, the temperature, and its number of moles remain unchanged. The partial pressure difference between sea water and air is positive when the partial pressure of the dissolved gas in sea water is greater than the partial pressure in air.