Retrieving "Peruvian" from the archives

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1. El Nino Events

   Linked via "Peruvian"

   Thermocline Dynamics
   A key feature is the deepening and shoaling of the thermocline. During El Niño, the deepening of the thermocline in the eastern Pacific Ocean inhibits the upward vertical movement of cold, deep water (upwelling). This suppression of nutrient delivery—primarily phosphatic compounds required by phytoplankton—leads to a collapse of [primary productivity](/entri…