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Enhanced Ocean Mixing Experiment: Impacts on Global Climate Trends

This experiment explores the impacts of increased vertical mixing coefficients on ocean dynamics and climate trends. By modifying key parameters related to mixing, including SST, SAT, and sea ice buildup, the study examines how these changes affect global temperature patterns and ocean circulation. The results reveal shifts in sea temperature, salinity profiles, and mass transport, with implications for future climate scenarios over a 20-year span.

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Enhanced Ocean Mixing Experiment: Impacts on Global Climate Trends

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  1. Ocean Mixing Experiment Tommi Bergman, Ambarish Karmalkar, Shreethala C., Abubakr Salih

  2. Modifications • Vertical mixing coefficients (ABACK and DBACK) increased by factor of 25 • No other modifications

  3. Hypotheses • Increased vertical mixing • Mixed layer thickness increase • SST and SAT decrease • Build-up of sea ice at high latitudes • Salinity profile change

  4. Mixed layer thickness • Mixed layer thickens • Some anomalies especially around Antarctica

  5. Sea temperature • Equatorial surface layer cools • At larger depths water temperature increases

  6. SAT Control • Global temp reduces, but polar temp increases

  7. Sea ice

  8. Salinity vertical profile Salinity increases at poles, especially north pole

  9. Ocean circulation • Compared to the control run the poleward mass transport increases m3s-1 Time

  10. CO2 response • CO2 burden has a increasing trend all through the 20 years

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