Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 19, issue 15
Articles | Volume 19, issue 15
https://doi.org/10.5194/gmd-19-7369-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-7369-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 15
Development and technical paper
 | 
10 Aug 2026
Development and technical paper |  | 10 Aug 2026

Implementation of a three-dimensional planetary boundary layer parameterization in a coupled modeling system and evaluation of “gray zone” simulations of a wind-wave event off the US California Coast using observations

Eric A. Hendricks, Timothy W. Juliano, Branko Kosović, Sue Ellen Haupt, Brian J. Gaudet, and Geng Xia

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Short summary
A three-dimensional planetary boundary layer (PBL) parameterization, suited for mesoscale model grid spacings of 100–1000 m with improved treatment of unresolved horizontal mixing, is added to a coupled atmosphere/wave modeling system and the first coupled simulations are executed using the parameterization. Simulations of a significant wind-wave event demonstrate that the new parameterization has similar behaviors as one-dimensional PBL parameterizations and compares well with observations.
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