Carbon model worksheet 3 answers
The article provides answers to the questions posed in the carbon model worksheet 3.
- Bicarbonate ion and dissolved CO2 gas (CO2(aq)) should increase (as a fraction or percentage of the total pool of DIC), as the pH drops below 8.2, while carbonate ion should decrease.
- (a) adding 1000 Gt C over a space of 400 years causes a maximum impact of ca. -0.2 units on pH, (b) 2000 Gt C causes pH to drop by a maximum of -0.4 units, 4000 Gt C by -0.7 units, and 8000 Gt C by -1 unit.
- (a) +10; (b) +20; (c) +50; (d) +110 μMol kg-1.
- (a) -80; (b) -120; (c) -150; (d) -180 μMol kg-1.
- (a) +190; (b) +290; (c) +390; (d) +450 μMol kg-1.
- Carbon model overview
- Carbon model details
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- Phosphorus model overview
- Chuck, A. et al. (2005). The oceanic response to carbon emissions over the next century: investigation using three ocean carbon cycle models. Tellus B 57, 70-86.
- Tyrrell, T. (1999). The relative influences of nitrogen and phosphorus on oceanic primary production. Nature 400, 525–531.
- Tyrrell, T. et al. (2007). The long-term legacy of fossil fuels. Tellus B 59, 664-672.