IB Biology Topic C4.2.20 Analysis of the Keeling Curve in Terms of Photosynthesis, Respiration and Combustion Revision Notes (SL/HL)

IB Biology Topic C4.2.20 Analysis of the Keeling Curve in Terms of Photosynthesis, Respiration and Combustion Revision Notes (SL/HL) | RevisionDojo

Written by official IB examiners

The Keeling Curve Shows a Seasonal Wobble on a Rising Trend of Atmospheric CO2

The Keeling Curve records atmospheric $CO_2$ measured continuously at Mauna Loa Observatory, Hawaii, since 1958.
It shows two features: an annual oscillation and a long-term upward trend.

Note

The curve is named after Charles David Keeling, who started the measurements.

The Annual Oscillation Tracks the Northern Growing Season

$CO_2$ falls during the Northern Hemisphere growing season (spring and summer, roughly May to October) when photosynthesis exceeds respiration.
$CO_2$ rises in autumn and winter (roughly October to May) when respiration and decomposition exceed photosynthesis.

Nice try, unfortunately this paywall isn't as easy to bypass as you think. Want to help devleop the site? Join the team at https://revisiondojo.com/join-us. exercitation voluptate cillum ullamco excepteur sint officia do tempor Lorem irure minim Lorem elit id voluptate reprehenderit voluptate laboris in nostrud qui non Lorem nostrud laborum culpa sit occaecat reprehenderit

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit.

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

Unlock the rest of this chapter with a free account

The Keeling Curve Shows a Seasonal Wobble on a Rising Trend of Atmospheric CO2

The Keeling Curve records atmospheric $CO_2$ measured continuously at Mauna Loa Observatory, Hawaii, since 1958.
It shows two features: an annual oscillation and a long-term upward trend.

Note

The curve is named after Charles David Keeling, who started the measurements.

The Annual Oscillation Tracks the Northern Growing Season

$CO_2$ falls during the Northern Hemisphere growing season (spring and summer, roughly May to October) when photosynthesis exceeds respiration.
$CO_2$ rises in autumn and winter (roughly October to May) when respiration and decomposition exceed photosynthesis.

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

IB Biology Topic C4.2.20: Analysis of the Keeling Curve in Terms of Photosynthesis, Respiration and Combustion Notes

The Keeling Curve Shows a Seasonal Wobble on a Rising Trend of Atmospheric CO2

The Annual Oscillation Tracks the Northern Growing Season

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

The Keeling Curve Shows a Seasonal Wobble on a Rising Trend of Atmospheric CO2

The Annual Oscillation Tracks the Northern Growing Season

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics