Final answer:
The sea surface temperature anomalies (SSTAs) in the Pacific Ocean can reveal the occurrence of El Niño. Warm SSTAs in the central and eastern equatorial Pacific indicate an El Niño event. El Niño events have global impacts on weather patterns and marine ecosystems.
Step-by-step explanation:
In the context of El Niño, the sea surface temperature anomalies (SSTAs) in the Pacific Ocean can reveal the occurrence of this climate phenomenon. During El Niño, the sea surface temperatures in the central and eastern equatorial Pacific become unusually warm.
These warm SSTAs can be observed using satellite imagery, buoys, and temperature sensors deployed across the ocean. Scientists use these measurements to monitor and track El Niño events, which can have significant impacts on weather patterns around the world.
For example, during an El Niño event, cold, nutrient-rich water is suppressed, resulting in reduced fish populations, altered rainfall patterns, and disruptions to marine ecosystems.
Learn more about El Niño