Zonal winds in the central equatorial Pacific and El Nino [Trade winds]

Zonal winds in the central equatorial Pacific and El Nino [Trade winds]

Easterly trade winds from near-equatorial islands in the central Pacific weakened before each El Niño between 1950 and 1978, except for the 1963 El Niño. The weakening of the easterlies and their later collapse did not occur uniformly over several months, but rather through a series of strong wester...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1983-10, Vol.222 (4621), p.327-330
Hauptverfasser: Luther, D.S, Harrison, D.E, Knox, R.A
Format: Artikel
Sprache:eng
Schlagworte:
Atmospheric circulation
Atmospheric research
Cantons
Coasts
El Nino
El Niño
Environmental aspects
Kelvin waves
Marine
Meteorological research
Observations
Ocean currents
Oceanography
Oceans
Pacific Ocean
Trade winds
Waves
Weather
Wind
Winds
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Beschreibung
Zusammenfassung:Easterly trade winds from near-equatorial islands in the central Pacific weakened before each El Niño between 1950 and 1978, except for the 1963 El Niño. The weakening of the easterlies and their later collapse did not occur uniformly over several months, but rather through a series of strong westerly wind bursts lasting 1 to 3 weeks. The bursts may force equatorial Kelvin waves in the ocean that can both initiate and sustain the sea surface warming characteristics of El Niño events.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.222.4621.327