US EditionWarming Oceans Prompt Major Overhaul of How We Monitor El Niño and La Niña
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Warming oceans prompt major overhaul of how we monitor El Niño and La Niña
Warming oceans prompt major overhaul of how we monitor El Niño and La Niña Wed, 01 Oct 2025 - 09:47 El Niño–Southern Oscillation (ENSO) is a fluctuation of ocean temperatures and atmospheric pressure in the Pacific. It is made up of opposite phases - El Niño and La Niña - and has a considerable impact on global weather, including here in New Zealand. Earth Sciences NZ meteorologist Chris Brandolino says as our climate and seas warm, they’re int…
Relative El Niño indices are being introduced to monitor the phenomenon outside the influence of climate change. The Australian Meteorological Service has already begun to use them operationally. The long-term trend in sea surface temperature, primarily associated with climate change, poses a challenge for monitoring the El Niño phenomenon. Source: Copernicus Marine Service. El Niño and La Niña (the El Niño-Southern Oscillation, or ENSO, as the …
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