* Bristol ChemLabS Climate Model sources for Schools


To run this model you will need Java installed on your computer which you can download from here

Albedo

A is the albedo or reflectivity of the earth, it is a measure of the amount of cloud in the sky and ice on the surface. If the Earth’s surface was all ice (Snowball Earth) then A would be 1.0.

τIR

τIR is the amount of infra red light from the earth that passes through the atmosphere and escapes to space. If all the infra red light from the earth passes through the atmosphere without being absorbed then τIR = 1.0, if all the infra red light from the earth is absorbed by the atmosphere then τIR = 0.0. Greenhouse gases in the atmosphere are responsible for absorbing this infra red light, so as their levels increase, τIR becomes smaller and more heat is trapped, warming the surface of the Earth.

τVIS

τVis is the amount of visible light from the sun that passes through the atmosphere and reaches the surface. If all the light from the sun passes through the atmosphere without being absorbed then τVIS = 1.0, if all the light from the sun is absorbed by the atmosphere then τVIS = 0.0.

Solar Constant %

The Solar Constant changes the suns energy that reaches the Earth. The standard value for this is 1370Wm-2

 


Try Changing the Variables

 

 

back to top


[an error occurred while processing this directive]