This El Nino site explains the abnormal warming of surface ocean waters in the eastern tropical Pacific and how it affects global weather, ocean circulation, and coral reef ecosystems. The activities involve wind direction and the Coriolis effect, global wind patterns, and cloud formation. There are sections comparing normal conditions to El Nino conditions and a video clip of the 1982-1983 El Nino ... Full description.

This lesson focuses upon the scientific phenomenon of El Nino. Learners will also explore the possible link between human-induced global warming, and El Nino as a possible distributor of global warming's extra energy. Links to related sites are included. Full description.

This data tip from Bridge, the Ocean Sciences Education Teacher Resource Center archive, dicusses El Nino's effects on the oceans, climate, and ocean life. It includes links to a variety of educational sites, and a data activity in which students track some of the common climate changes caused by El Nino, paying close attention to wintertime changes such as temperature, precipitation, and incidence ... Full description.

This three-dimensional animation shows the sea level and ocean temperature anomalies that are characteristic of an El Nino event. Users can select a variety of links that provide additional information on this phenomenon, such as impacts on the world's weather, a history of El Nino's effects, and impacts in other parts of the world, including Australia, the Indian Ocean, and effects on Argentine and ... Full description.

This resource introduces El Nino, bridging from simple artist diagrams to satellite imagery. An activity has students recreate El Nino conditions in edible, tasty pudding. Full description.

Next to the seasons, El Nino is the most powerful force driving global weather. Find out what scientists are learning about this mysterious weather phenomenon and its reach through space and time. This site is the NOVA Online material on El Nino. It was created in early 1998 during the exceptionally strong El Nino season which began in 1997. Dispatches from writers and scientists are available from ... Full description.

This web site from the California Environmental Resources Evaluation System (CERES), an information system of the California Resources Agency, provides numerous links pertaining to El Nino. The links are divided into categories such as: background and current information, forecasts and predictions, impacts and effects, disaster preparedness and recovery, and emergency information. There is a listing ... Full description.

This site provides multiple access points to all types of El Nino data. It describes both El Nino and La Nina conditions, as well as the impacts of an El Nino event and the benefits of El Nino prediction. Through this portal site one can also find information on current El Nino conditions and forecasts, the instrumentation used in the scientific study of this phenomena, and links to both El Nino animations ... Full description.

This article deals with the phenomena of El Nino and La Nina. Topics include the apparently widespread effect of these phenomena on weather systems around the Earth and new methods to detect their arrival and departure. There is a discussion of the use of SeaWIFS satellite data to detect changes in the distribution of oceanic algae (phytoplankton) which occur when warm or cool water masses move, as ... Full description.

This module provides background information on El Nino and the mechanisms of the Southern Oscillation. Relationships of El Nino to climate change, weather phenomena and disease carrying organizms are also presented. Full description.