Vertical Viscosity Coefficient Increased for High-Resolution Modeling of the Tsushima/Korea Strait

Naoki Hirose, Tianran Liu, Katsumi Takayama, Katsuto Uehara, Takeshi Taneda, Young Ho Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

This study clarifies the necessity of an extraordinary large coefficient of vertical viscosity for dynamical ocean modeling in a shallow and narrow strait with complex bathymetry. Sensitivity experiments and objective analyses imply that background momentum viscosity is on the order of 100 cm2 s21, while tracer diffusivity estimates are on the order of 0.1 cm2 s21 . The physical interpretation of these estimates is also discussed in the last part of this paper. To obtain reliable solutions, this study introduces cyclic application of the dynamical response to each parameter to minimize the number of long-term sensitivity experiments. The recycling Green’s function method yields weaker bottom friction and enhanced latent heat flux simultaneously with the increased viscosity in high-resolution modeling of the Tsushima/Korea Strait.

Original languageEnglish
Pages (from-to)1205-1215
Number of pages11
JournalJournal of Atmospheric and Oceanic Technology
Volume38
Issue number6
DOIs
Publication statusPublished - Jun 2021

All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Atmospheric Science

Fingerprint

Dive into the research topics of 'Vertical Viscosity Coefficient Increased for High-Resolution Modeling of the Tsushima/Korea Strait'. Together they form a unique fingerprint.

Cite this