El Niño/Southern Oscillation

…negative phases are related to El Niño episodes in the South Pacific, and most of Australia’s major droughts have been related to those episodes. Prolonged positive SOI phases (during La Niña) normally bring above-average rainfall and floods to eastern and northern Australia. In each case, however, the correlations are not…

of El Niño/Southern Oscillation (ENSO) events will adjust to climate change. Since ENSO is one of the most prominent sources of interannual variations in regional patterns of precipitation and temperature, any uncertainty in how it will change implies a corresponding uncertainty in certain regional patterns of climate change. For…

…the El Niño/Southern Oscillation (ENSO). The phase of the Southern Oscillation at a given point in time may be understood using the Southern Oscillation Index (SOI), which compares the difference in atmospheric pressure over Australia and Indonesia with that of the eastern South Pacific.

…scientists call the El Niño/Southern Oscillation (ENSO). It is believed that ENSO is responsible not only for unusual weather events in the equatorial Pacific region (e.g., the exceedingly severe drought in Australia and the torrential rains in western South America in 1982–83) but also for those that periodically occur…