Comments on “Langmuir Turbulence and Surface Heating in the Ocean Surface Boundary Layer”

Noh, Yign; Choi, Yeonju

doi:10.1175/jpo-d-17-0135.1

Cited by 7 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To take account LT effects, we modify u * with enhancement factor F LT . By comparing and extending previous studies (McWilliams & Sullivan, 2000;Noh & Choi, 2018;Pearson et al, 2015;Reichl et al, 2016), we find an empirical form of…”

Section: 1029/2023gl103231supporting

confidence: 72%

“…We extend previous work (e.g., Noh & Choi, 2018; Pearson et al., 2015; Zilitinkevich & Baklanov, 2002; Zilitinkevich et al., 2007) to develop a scaling of H b for the OSBL forced by constant heat fluxes, wind stresses, and Stokes drifts (detailed in Appendix ). Our scaling is unified for ST and LT, in the form of

\frac{{H}_{b}}{{H}_{e}}={F}_{LT}{\left({0.93}^{-2}+{0.825}^{-2}\frac{{\hat{B}}_{0}}{{F}_{LT}^{2}}\right)}^{-0.5}\,\mathrm{with}\ {F}_{LT}=1+0.025L{a}_{t}^{-2},\ {\hat{B}}_{0}=\frac{{H}_{e}}{L}.

…”

Section: Resultsmentioning

confidence: 81%

“…We extend previous work (e.g., Noh & Choi, 2018;Pearson et al, 2015;Zilitinkevich & Baklanov, 2002;Zilitinkevich et al, 2007) to develop a scaling of H b for the OSBL forced by constant heat fluxes, wind stresses, and Stokes drifts (detailed in Appendix A). Our scaling is unified for ST and LT, in the form of…”

Section: Scaling Of Dwl Depthsmentioning

confidence: 97%

See 2 more Smart Citations

Langmuir Turbulence Controls on Observed Diurnal Warm Layer Depths

Wang

Kukulka

Farrar

et al. 2023

Geophysical Research Letters

View full text Add to dashboard Cite

A shallow and stratified diurnal warm layer (DWL) often forms near the ocean surface during daytime solar heating and erodes again during convective nighttime cooling, resulting in a diurnal cycle of the ocean surface boundary layer (OSBL) depth. For the fully turbulent OSBL, turbulent mixing distributes the injected heat, forming a DWL with a thermocline beneath. Although under very weak winds, stratification may be strongest at the sea surface, here we investigate cases with wind speeds of 4-7 m/s where the maximum stratification is found at the diurnal thermocline. The heat and momentum in the DWL are decoupled from deeper water to first order, leading to diurnal anomalies of sea surface temperature (SST) of about 0.1-1°C and relatively strong near-surface velocity, so-called diurnal jets with speeds up to 0.1-0.2 m/s (

show abstract

Section: 1029/2023gl103231supporting

confidence: 72%

\frac{{H}_{b}}{{H}_{e}}={F}_{LT}{\left({0.93}^{-2}+{0.825}^{-2}\frac{{\hat{B}}_{0}}{{F}_{LT}^{2}}\right)}^{-0.5}\,\mathrm{with}\ {F}_{LT}=1+0.025L{a}_{t}^{-2},\ {\hat{B}}_{0}=\frac{{H}_{e}}{L}.

…”

Section: Resultsmentioning

confidence: 81%

See 1 more Smart Citation

Langmuir Turbulence Controls on Observed Diurnal Warm Layer Depths

Wang

Kukulka

Farrar

et al. 2023

Geophysical Research Letters

View full text Add to dashboard Cite

show abstract

“…The penetration depth of momentum in the BL is scaled by the Ekman length scale (=u * /f, where u * is the frictional velocity), and the time scale adjusting to the Coriolis force is scaled by T f . Accordingly, vertical mixing can be quite different depending on the latitude, even if it is generated under the same surface forcing (e.g., Noh & Choi, 2018;Ushijima & Yoshikawa, 2019). The frequency spectrum of wind stress shows a wide range of the time scale T w from a few hours to a month (Gille, 2005;Qiu et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Atmospheric and Oceanic Boundary Layers During Convection and their Latitudinal Dependence

Choi

Noh

2020

JGR Oceans

Self Cite

View full text Add to dashboard Cite

The boundary layers of the atmosphere and the ocean are compared during convection, and their latitudinal dependence is investigated. The results are applied to examine the parameterization of the boundary layer depth in the K‐profile parameterization (KPP) model. The bulk Richardson number Rib varies excessively with time in the high‐latitude (HL) oceanic boundary layer (OBL) without unresolved shear Vt2, as a result of inertial oscillation. Inclusion of Vt2 is also necessary in the atmospheric boundary layer (ABL) to mitigate the large variation of Rib with wind stress. Stratification and velocity shear near the boundary layer height/depth are stronger and thicker at low latitudes (LLs), where the Ekman length scale is larger and the inertial time scale is longer. This enhanced shear makes the entrainment buoyancy flux larger at LL. Analysis of the turbulent kinetic energy (TKE) budget in the entrainment zone is carried out to explain the variation of Rib depending on the boundary layer and the latitude. This analysis shows that the TKE production in the entrainment zone is dominated by shear production at LL, but by the TKE flux at HL, and that Vt2 represents the contribution from the TKE flux to the entrainment zone. The enhancement of vertical TKE by Langmuir circulation (LC) does not depend on the latitude, but it decreases with depth faster at LL. The result suggests that the parameterization of the boundary layer depth in the KPP model should be different depending on whether it is the ABL or the OBL and depending on the latitude.

show abstract

Influence of the upper mixed layer depth on Langmuir turbulence characteristics

Pan²,

Devlin³

et al. 2023

J. Ocean. Limnol.

View full text Add to dashboard Cite

Comments on “Langmuir Turbulence and Surface Heating in the Ocean Surface Boundary Layer”

Cited by 7 publications

References 9 publications

Langmuir Turbulence Controls on Observed Diurnal Warm Layer Depths

Langmuir Turbulence Controls on Observed Diurnal Warm Layer Depths

Comparison of the Atmospheric and Oceanic Boundary Layers During Convection and their Latitudinal Dependence

Influence of the upper mixed layer depth on Langmuir turbulence characteristics

Contact Info

Product

Resources

About