FCO2v2

This function calculates the CO2 flux at the air-sea interface for a temperature range of -2 to 40°C.

FCO2v2 is a MATLAB function to calculate the CO₂ flux at the air-sea interface. This version uses the gas transfer velocity formulation from Wanninkhof (2014) and supports temperatures ranging from -2 to 40 °C.

Syntax:

[F_CO2, dpCO2, K_CO2] = FCO2v2(pCO2_water, pCO2_atm, SST, SSS, wind);

Inputs:

• pCO2_water: seawater pCO₂ (µatm)
• pCO2_atm: atmospheric pCO₂ (µatm)
• SST: sea surface temperature (°C)
• SSS: sea surface salinity (PSU)
• wind: wind speed at 10 m above the sea surface (m/s)

Outputs:

• F_CO2: CO₂ flux (mmol m⁻² d⁻¹)
• dpCO2: pCO₂ difference between water and atmosphere (µatm)
• K_CO2: gas transfer velocity (cm h⁻¹)