Lectures 19-22: CO2 in seawater

1. The carbonate system
2. Alkalinity
3. Carbonate Saturation
4. Oceanic uptake of anthropogenic CO$_2$ (Revelle factor)

We acknowledge and respect the lək̓ʷəŋən peoples on whose traditional territory the university stands and the Songhees, Esquimalt and W̱SÁNEĆ peoples whose historical relationships with the land continue to this day.

Carbon on a new timescale..

Motivation:

The Carbonate System (at equilibrium)

Brief Total Alkalinity Intro

An exercise: relative abundance of carbon species in seawater

An exercise: relative abundance of carbon species in seawater

An exercise: relative abundance of carbon species in seawater

Alkalinity: real world examples

Alkalinity: real world examples

CO2, Alkalinity, and DIC

fig = plt.figure(figsize=(10, 10))
plt.plot([0, 1], [0, 1], "-", lw=2)
_ = plt.gca().set_xticklabels([])
_ = plt.gca().set_yticklabels([])
plt.gca().set_xlabel("DIC")
plt.gca().set_ylabel("ALK")
sns.set_context("poster")

Carbonate Saturation State