How marine biogeochemical processes influence air-sea CO2 exchange: introducing the isocapnic quotient

Matthew Paul Humphreys, University of Southampton, Ocean and Earth Science, Southampton, United Kingdom, Chris James Daniels, National Oceanography Centre, OBE, Southampton, United Kingdom, Dieter Wolf-Gladrow, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany, Toby Tyrrell, Univ Southampton, Southampton, United Kingdom and Eric P. Achterberg, GEOMAR Helmholtz Centre for Ocean Research Kiel, Chemical Oceanography, Kiel, Germany