Question

Physical and chemical and biological characterstics of air

Answer 1

Physical, chemical and biological characteristics* of CO2 gas flux across the air‐water interface

SV Smith

Plant, Cell & Environment 8 (6), 387-398, 1985

Carbon dioxide gas flux across the air‐water interface is most often treated as a ‘simple’ physical process, primarily responding to wind speed and water temperature. Available experimental data yield an exponential regression equation relating wind speed to the thickness of a stagnant boundary film through which gas diffuses to or from the water. Flux of CO2 is influenced by CO2 hydration reactions in the stagnant boundary layer. High pH and a thick stagnant boundary layer favour chemical enhancement of the CO2 gas flux.

The rate of CO2 flux …