Greenhouse effect model and infrared trapping

Modeling the role of the atmosphere in trapping infrared (IR) radiation re-emitted by the Earth and the influence of long-wave IR on temperature evolution.

A light source (the sun) will illuminate the bottom of the chamber. The energy received will be re-emitted in the form of long-wave IR radiation from the bottom of the chamber (the Earth) towards the opening (the upper atmosphere). A differential temperature measurement will be conducted for 20 minutes between the bottom of the chamber and the opening. Using films permeable and impermeable to IR radiation, different hypotheses regarding the role of the atmosphere will be tested sequentially.

Composition:
- Insulated chamber: 14 x 8 x 9.5 cm
- 1 film permeable to IR made of LDPE plastic
- 1 film impermeable to IR made of PVC

- Insulated enclosure (14 x 8 x 9.5 cm) - 1 IR permeable film - 1 IR-impermeable film