CAS ES 142 Lecture Notes - Lecture 2: Chlorophyll, Micronutrient, Downwelling
30 Jul 2018
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Document Summary
Atmospheric carbon dioxide increasing since the 1960s (cid:862)pulses(cid:863) increases/decreases over the seasons like breathing in and out of the earth increasing temperature increases respiration. Two ways to get carbon in the ocean: photosynthesis and physical processes. Both of these make inorganic carbon in ocean 50x more than in the atmosphere. Non-uniform distribution of co2 going in and out of the ocean around the world two pumps that go along with these processes. The two pu(cid:373)ps that i(cid:374)flue(cid:374)(cid:272)e the o(cid:272)ea(cid:374)"s (cid:272)ar(cid:271)o(cid:374) (cid:272)y(cid:272)le: solubility pump physical aspects, biological pump photosynthetic aspects. Once carbon is at the bottom of the ocean, takes 2000 years to resurface the carbon we see now is from a long time ago. Decrease co2 levels on land by increasing the amount of co2 that makes it down to the bottom of the ocean. Major (macro) nutrients (n, p, silica) grazing (zooplankton eating phytoplankton)
