For 412 nm and 490 nm, the relative frequency of 𝐾𝑑(𝜆)Kd(λ) was added for the Case 1 waters (𝑅𝑟𝑠(490)𝑅𝑟𝑠(555)>0.85Rrs(490)Rrs(555)>0.85) present in the NOMAD, COASTLOOC and the IOCCG (simulated) datasets. Table 2. Number of BGC-Argo float profiles ...