Question

How does the time series of atmospheric CO2 at the South Pole compare to the Mona Loa curve? Which record has higher seasonal variation? Why?

A) South Pole: Higher seasonal variation; due to regional factors
B) South Pole: Lower seasonal variation; due to global factors
C) Mona Loa: Higher seasonal variation; due to regional factors
D) Mona Loa: Lower seasonal variation; due to global factors

Answer 1

The CO2 time series at the a. South Pole exhibits higher seasonal variation than the Mona Loa curve due to regional factors such as sea ice extent and frozen CO2 deposits.

Step-by-step explanation:

The time series of atmospheric CO2 at the South Pole can be compared to the Mona Loa curve.

The Mona Loa curve, recorded in Hawaii, shows a steady year-by-year increase in CO2 levels, a. with seasonal variations due to photosynthesis on top of this trend.

On the other hand, the time series at the South Pole also exhibits seasonal variations, but with higher amplitude than the Mona Loa curve. This is because the South Pole experiences regional factors such as the sea ice extent and frozen CO2 deposits, contributing to higher seasonal variation.