Patrick Rafter @oceanandclimate.bsky.social · Oct 3 The key point in the figure above is that the trade winds drive upwelling along the equator, leading to the existence of both an eastern “cold tongue” and higher concentration “nutrient tongue”. The temperature distribution is critical for the air-sea feedback driving the trade winds and ENSO
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However, even though nutrients don’t “matter” with respect to ENSO, my work (see above) indicates that nutrient utilization in these iron limited waters is surprisingly linked to the same upper ocean physics altered by ENSO. See the Nature Communications paper or Oceanography Society papers above