Solar eclipse 2012 – Experiment

Temperature and flux plotEnvironmental data, in particular temperature and light intensity, will be collected at two of the three observation locations and a web-based educational activity will be deployed to allow school students to analyse the weather sensors data during the eclipse or at later time via an interactive web tool.

An interesting effect that occurs during the course of an eclipse, more remarkable in a total eclipse, is the decrease of the environmental temperature due to the decrease of the solar radiation or ambient brightness. The interesting thing is that the phenomenon does not occur instantaneously when the Sun is completely covered but it occurs after a time ranging from 2 to 20 minutes. This time delay depends on many factors, such as the time of day when the eclipse occurs, the presence of nearby bodies of water such as a lake or ocean, proximity to wooded areas, but it is easily measurable.

Information about the experiment is available here (reference document).
Use the interactive activity tool. Watch the tutorial on YouTube.