Articles | Volume 16, issue 12
https://doi.org/10.5194/gmd-16-3629-2023
https://doi.org/10.5194/gmd-16-3629-2023
Model experiment description paper
 | 
30 Jun 2023
Model experiment description paper |  | 30 Jun 2023

Improving Antarctic Bottom Water precursors in NEMO for climate applications

Katherine Hutchinson, Julie Deshayes, Christian Éthé, Clément Rousset, Casimir de Lavergne, Martin Vancoppenolle, Nicolas C. Jourdain, and Pierre Mathiot

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Latest update: 24 Feb 2024
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Short summary
Bottom Water constitutes the lower half of the ocean’s overturning system and is primarily formed in the Weddell and Ross Sea in the Antarctic due to interactions between the atmosphere, ocean, sea ice and ice shelves. Here we use a global ocean 1° resolution model with explicit representation of the three large ice shelves important for the formation of the parent waters of Bottom Water. We find doing so reduces salt biases, improves water mass realism and gives realistic ice shelf melt rates.