Assessing vertical coordinate system performance in the Regional Modular Ocean Model 6 configuration for Northwest Pacific

Chang, Inseong; Kim, Young Ho; Park, Young-Gyu; Jin, Hyunkeun; Pak, Gyundo; Ross, Andrew C.; Hallberg, Robert

doi:10.5194/gmd-19-187-2026

Articles | Volume 19, issue 1

https://doi.org/10.5194/gmd-19-187-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Development and deployment of regional ocean configurations...

https://doi.org/10.5194/gmd-19-187-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 1

Model experiment description paper

|

07 Jan 2026

Model experiment description paper |

| 07 Jan 2026

Assessing vertical coordinate system performance in the Regional Modular Ocean Model 6 configuration for Northwest Pacific

Inseong Chang, Young Ho Kim, Young-Gyu Park, Hyunkeun Jin, Gyundo Pak, Andrew C. Ross, and Robert Hallberg

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Cumulative views and downloads (calculated since 14 Jul 2025)

Month	HTML	PDF	XML	Total
Jul 2025	220	42	20	282
Aug 2025	964	32	12	1,008
Sep 2025	3,496	38	22	3,556
Oct 2025	218	90	36	344
Nov 2025	82	52	8	142
Dec 2025	172	66	8	246
Jan 2026	481	167	24	672
Feb 2026	232	140	4	376
Mar 2026	214	137	11	362
Apr 2026	241	142	25	408
May 2026	372	100	12	484
Jun 2026	42	17	5	64
Jul 2026	100	49	6	155
Aug 2026	38	17	3	58

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Short summary

We conducted sensitivity experiments to examine how different vertical coordinates influence the representation of water masses and tides using a high-resolution regional ocean model for the Northwest Pacific. We found that the choice of vertical coordinate strongly affects the degree of artificial mixing, which in turn changes how well the model reproduces key ocean features. This highlights the importance of selecting a vertical coordinate when developing regional ocean models.