. Carbon and the biosphere; proceedings of the 24th Brookhaven symposium in biology, Upton, , May 16-18, 1972. Carbon cycle (Biogeochemistry). 14 STUIVER E * 2 X h- Q. §^râ i r â D-- ~o--, V, *fc. V77/7Z777777, TOTAL C02, millimoles/kg Fig. 4 Total C02 content as a function of depth in the Pacific Ocean at 28°29'N, 121°38'W. The solid curve was calculated for a B/w value of , with B constant. From Craig and 9 the boundary between the mixed layer and deep ocean. The net 14C flux between the deep-water and mixed-layer reservoirs through the standar
. Carbon and the biosphere; proceedings of the 24th Brookhaven symposium in biology, Upton, , May 16-18, 1972. Carbon cycle (Biogeochemistry). 14 STUIVER E * 2 X h- Q. §^râ i r â D-- ~o--, V, *fc. V77/7Z777777, TOTAL C02, millimoles/kg Fig. 4 Total C02 content as a function of depth in the Pacific Ocean at 28°29'N, 121°38'W. The solid curve was calculated for a B/w value of , with B constant. From Craig and 9 the boundary between the mixed layer and deep ocean. The net 14C flux between the deep-water and mixed-layer reservoirs through the standard advectionâdiffusion exchange appears, surprisingly, to be about zero or even directed 8 Although the specific 14C activities are highest in the mixed surface layer, the increase in total C02 for the deeper waters results in a total amount of 14C transported from the deep reservoir to the mixed layer at least equal to the amount transported downward (biotic transport not included). The transport of particulate carbon to the deep waters would then provide almost entirely for radioactive-decay losses in these waters. Since the gradients in specific C02 concentration are often large compared to the gradients in specific 14C activity, the use of specific 1 C concentrations (14C atoms per cubic centimeter) gives a better approximation of reality for box-model calculations18 than the traditionally used specific 1 C activity (14C/carbon). These effects have been taken into account in a diffusionâ advection model with particulate flux, recently discussed by Craig. With the use of Craig's description, this model is outlined in the following Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Brookhaven National Laboratory; Woodwell, G. M; Pecan, Erene V. [Washington] Technical Information
Size: 888px × 2815px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
