WW2010
University of Illinois

WW2010
 
welcome
 
online guides
 
archives
 
educational cd-rom
 
current weather
 
about ww2010
 
index

Online Guides
 
introduction
 
meteorology
 
remote sensing
 
reading maps
 
projects, activities

Meteorology
 
introduction
 
air masses, fronts
 
clouds, precipitation
 
el nino
 
forces, winds
 
hurricanes
 
hydrologic cycle
 
light, optics
 
midlatitude cyclones
 
severe storms
 
weather forecasting

El Nino
 
introduction
 
definition
 
'97-'98 event
 
upwelling
 
non el nino years
 
el nino events
 
sea surface temps
 
impacts on weather
 
economic impacts
 
prediction

User Interface
 
graphics
text

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[Image: home page image (61K)]
Graphic by: Yiqi Shao

Periodically, the flourishing fish populations commonly found off the west coast of Peru South America are replaced by the sight of dead fish littering the water and beaches. Unusual weather conditions occur around the globe as jet streams, storm tracks and monsoons are shifted. Such disarray is caused by a warm current of water that appears every three to seven years in the eastern Pacific Ocean called El Niño. This module introduces El Niño, conditions are responsible for its occurrence, plus the impact it has on the rest of the world. The El Niño instructional module has been organized into the following sections:

Sections
Last Update: 04/28/98
Definition
Introduces El Niño, when El Niño events have been recorded and how it compares to La Niña.

'97-'98 Event
Provides a brief insight into the most recent El Niño event.

Upwelling
Introduces upwelling, the thermocline and how they impact local sea life populations.

Non-El Niño Years
Typical oceanic and atmospheric conditions that exist in the tropical Pacific when no El Niño is present..

El Niño Events
Conditions that lead to an El Niño event and how El Niño influences upwelling processes, tropical rainfall and local fish populations.

Sea Surface Temperatures
El Niño visualized through sea surface temperature anomaly plots.

Impacts on Weather
The influence of El Niño on weather conditions worldwide.

Economic Impacts
Reduction in local fish populations, which in turn affect local industry and market prices worldwide.

Detection and Prediction
Methods and resources used by NOAA for detecting and predicting the presence of El Niño.

Acknowledgments
Those who contributed to the development of this module.

The navigation menu (left) for this module is called "El Nino" and the menu items are arranged in a recommended sequence, beginning with this introduction. In addition, this entire web server is accessible in both "graphics" and "text"-based modes, a feature controlled from the blue "User Interface" menu (located beneath the black navigation menus). More information about the user interface options, the navigation system, or WW2010 in general is accessible from About This Server.



Precipitation
Terms for using data resources. CD-ROM available.
Credits and Acknowledgments for WW2010.
Department of Atmospheric Sciences (DAS) at
the University of Illinois at Urbana-Champaign.

definition