El Nino is one of several online guides produced by the Weather World 2010 project at the University of Illinois The purpose of this module is to introduce the concept of El Nino conditions that are responsible for its occurrence and the impact it has on the rest of the world Topics covered include specific El Nino events non El Nino years the economic impact of El Nino detection and prediction These guides use multimedia technology and the dynamic capabilities of the web to incorporate text colorful diagrams animations computer simulations audio and video to introduce topics and concepts in the atmospheric sciences