Taichiro Sakagami has build a set of Animations to describe the “el Nino” effect and how it forms.  It’s a good example of Data Visualization as he collects alot of his data from weather simulations of the effect.

El Niño is one example of a kind of climate variability that is well understood by a small group of scientists, but very poorly understood by educated citizens. I believe visualization technology is one method that could help disseminate current scientific knowledge about El Niño to the educated public. Over the last year I have created an animation to communicate the essence of El Niño phenomenon.

via El Niño ENSO Animation V1.2.