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Publication Date
28 December 2023

A New Hybrid Mass‐Flux/High‐Order Turbulence Closure for Ocean Vertical Mixing

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The upper ocean (order of few tens of meters depth from the surface) has a substantial influence on our climate and weather systems. Specifically, upper ocean mixing processes play a key role in modulating global heat budget in the ocean and atmosphere by mixing heat deeper into the ocean or warming the atmosphere above. Accurate representation of the effects of these mixing processes on the global climate and in ocean models is crucial for understanding our current and changing climate. However, current mixing schemes used in these models have shown significant biases. We present a new physically-motivated mixing scheme for the upper ocean inspired by atmospheric mixing schemes. Results show that the proposed mixing scheme can simulate upper ocean mixing efficiently, suggesting its potential use in climate and ocean models to help reduce model biases.

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Point of Contact
Amrapalli Garanaik
Institution(s)
Los Alamos National Laboratory
Oregon State University
CIRES University of Colorado Boulder
Hong Kong University of Science and Technology
Funding Program Area(s)
Additional Resources:
NERSC (National Energy Research Scientific Computing Center)
Publication
A New Hybrid Mass‐Flux/High‐Order Turbulence Closure for Ocean Vertical Mixing
Garanaik, Amrapalli, Filipe S. Pereira, Katherine Smith, Rachel Robey, Qing Li, Brodie Pearson, and Luke Van Roekel. 2023. “A New Hybrid Mass‐Flux/High‐Order Turbulence Closure For Ocean Vertical Mixing”. Journal Of Advances In Modeling Earth Systems 16 (1). American Geophysical Union (AGU). doi:10.1029/2023ms003846.