Final answer:
The PDO is a long-term climate pattern that has a longer duration of influence than El Niño, which is a shorter-term climate pattern.
Step-by-step explanation:
The PDO (Pacific Decadal Oscillation) is a natural climate pattern that affects the Pacific Ocean and its surrounding regions. It is characterized by fluctuations in sea surface temperatures and atmospheric pressure, which can impact weather patterns and ocean currents. The PDO has a longer duration of influence than El Niño, with a typical cycle lasting around 20 to 30 years.
On the other hand, El Niño is an irregular climate pattern that occurs when there is a warming of the sea surface temperatures in the central and eastern tropical Pacific Ocean. El Niño events usually last for about 12 to 18 months and have a wider global impact on weather patterns. While El Niño may influence the PDO, its influences are relatively shorter in duration compared to the longer-term variations of the PDO.
Therefore, the statement that the PDO is an oscillation with a shorter duration of influence than El Niño is False. The PDO has a longer-term influence on climate and is not directly comparable in terms of duration with El Niño.
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