EP Revision Lecture

1
EP Revision Lecture

• (Processes controlling the surface temperature
  of the Earth)

2
Office Hours (until Exam)

• Jenny Nelson, Tuesdays 1-2pm, Huxley 1007
• Arnaud Czaja Tuesdays, 2-3pm, Huxley, Room 726

3
Moon model
Blanket model
Top of
Atmosphere
Atmospheric (absorbing) layer
Stefan-Boltzman radiation of surface
Surface
4
The radiative solution is unstable to vertical
displacements of air parcels
Height
Radiationconvection
ZE
Radiation only
Temperature
TE
5
Surface temperature change caused by 2XCO2
Z
2XCO2
ZE?Z
ZE
1XCO2
TS?TS
TE
TS
6
Climate feedback machine
7
Atmospheric Heat Engine