Interactive comment on “Coccolithophore surface distributions in the North Atlantic and their modulation of the air-sea flux of CO2 from 10 years
نویسنده
چکیده
1) It is now accepted that water-leaving radiance is proportional to the seawater concentration of suspended calcite and more precisely to surface densities of detached coccoliths and not only coccolithophore cells (Balch et al.2005). The coccolith-tococcolithophore ratio is highly variable and increases towards the end of the bloom (Holligan et al. 1993). Reducing the estimate of CaCO3 standing stocks to a layer depth of 20m, a life span of 30 days, a coccolithophore concentration of 2000 cells/ml leading to a PIC concentration of 65 mg/m3, is probably the weakest part of the manuscript. The determination of CaCO3 standing stocks could benefit from the 2band approach that Balch et al. (2005) (used with MODIS images), with the added value of providing also the organic carbon estimates.
منابع مشابه
Interactive comment on “Reconstruction of super-resolution fields of ocean pCO2 and air–sea fluxes of CO2 from satellite imagery in the Southeastern Atlantic” by I. Hernández-Carrasco
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