Activity 2: Radiation equilibrium on Earth
Despite constant irradiation by the sun, the earth does not become hotter and hotter - it radiates energy itself. The intensity of the radiated energy depends in turn on the temperature of the earth, so that at a certain equilibrium temperature a radiation equilibrium is established.
The extent of the reflection, e.g. by ice surfaces on the earth, influences the height of the setting temperature substantially.
These phenomena can be worked out with two experiments:
Part 1: Why does the earth not get hotter and hotter, although it is constantly irradiated by the sun? (radiation equilibrium)
Part 2: What role do the ice surfaces play for the temperature of the earth? (Albedo)
- Description to the activity from the guide (PDF / editable word-document)
- Solution to the activity from the guide (PDF)
- DIN A3-backround text to the activity from the climate kit (all backround texts for download)
- Paperfigures "Ice" and "Stone" to cut out
- Worksheet: "Winterspecial" (PDF/ editable Word-Dokument)
More materials like h5p-study units, videos and animations with Module - The Greenhouse effect and the radiative Equilibrium.
Video 1. Partial experiment: Radiation equilibrium on earth
Video 2. Partial experiment: Ice surfaces and earth temperature
Technical questions and didactic comments
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- The experiment on albedo can also be used as an experiment on Ice-Albedo-Feedback.
- Hazard assessment
- Warning sign for the use of the radiator
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