Erratum: Using the Mellor-Yamada mixing scheme in seasonally ice-covered seas - Corrigendum to: Parameterization of vertical mixing in the Weddell Sea [Ocean Modelling 6 (2004) 83-100] {10.1016/S1463-5003(02)00061-6}

A coding error in the s-Coordinate Primitive Equation Model SPEM has led to misleading statements about the behaviour of the Mellor-Yamada level 2 parameterization of vertical mixing.It has been claimed that the scheme removes static instability only very slowly and preserves statically unstable str...

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Bibliographic Details
Published in:Ocean Modelling
Main Authors: Timmermann, Ralph, Losch, Martin
Format: Article in Journal/Newspaper
Language:unknown
Published: 2005
Subjects:
Online Access:https://epic.awi.de/id/eprint/11589/
https://epic.awi.de/id/eprint/11589/1/Tim2005a.pdf
https://doi.org/10.1016/j.ocemod.2004.11.001
https://hdl.handle.net/10013/epic.22041
https://hdl.handle.net/10013/epic.22041.d001
Description
Summary:A coding error in the s-Coordinate Primitive Equation Model SPEM has led to misleading statements about the behaviour of the Mellor-Yamada level 2 parameterization of vertical mixing.It has been claimed that the scheme removes static instability only very slowly and preserves statically unstable stratifications for an unrealistic long time.This note corrects this statement by demonstrating that the Mellor-Yamada mixing scheme, if implemented correctly, tends to overestimate rather than underestimate vertical mixing in seasonally ice-covered seas.Similar to other mixing schemes with the same behaviour, this leads to spurious open ocean deep convection, an unrealistic homogenization of the water column, and a significant reduction of sea ice volume.