| Comments |
P.382 left column 3rd paragraph: "A very rough, order-of-magnitude estimate of the atmospheric organic carbon input can be derived from consideration of the input of dissolved organic nitrogen (DON), estimated to be about (2–6) × 10^12 mol N/yr (ref 59 BNID 115509), and a conservative atmospheric DOC/DON ratio of about 20, yielding an estimate of atmospheric DOC deposition of 0.48 to 1.44 Gt C/yr. The C:N ratio of atmospheric dissolved organic matter is likely to be higher, but even the assumption of a C:N ratio of 40 yields a total atmospheric DOC input of up to 3 Gt C/yr. These values represent minimum estimates, because they do not include POC [particulate organic carbon] deposition." DOC=dissolved organic carbon |