Returns the gas transfer coefficient for gas of interest based on different models.

Source: R/utility_functions.R

Returns the gas transfer coefficient for gas of interest based on different models.

calc_kW(ws, wt, gas = "CO2", model = "wann14")

Arguments

ws

numeric; windspeed m/s
wt

numeric; water temperature °C
gas

character; one of 'CO2', 'CH4'
model

character; model to calculate kW. See 'Details'

Value

Numeric value of gas transfer coefficient for the given parameters

Details

Currently these models are supported:

  • WANN14: Wanninkhof (2014)

  • COLE98: Cole and Caraco (1998)

References

Wanninkhof, R., 2014. Relationship between wind speed and gas exchange over the ocean revisited. Limnology and Oceanography: Methods 12, 351–362. https://doi.org/10.4319/lom.2014.12.351

Cole, J.J., Caraco, N.F., 1998. Atmospheric exchange of carbon dioxide in a low-wind oligotrophic lake measured by the addition of SF6. Limnology and Oceanography 43, 647–656. https://doi.org/10.4319/lo.1998.43.4.0647

Examples

# Windpseed in m/s
windspeed <- c(2, 4.3, 1.8)
# Water temperature in °C
watertemperature <- c(18, 21, 19.3)

# Calculate gas transfer coefficient
calc_kW(windspeed, watertemperature)
#> [1] 1.488888 7.426978 1.246858