A multilevel ocean mixed layer model resolving the diurnal cycle: Development and validation

Tiejun Ling, Min Xu, Xin Zhong Liang, Julian X.L. Wang, Yign Noh

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The representation of transient air-sea interactions is critical to the prediction of the sea surface temperature diurnal cycle and daily variability. This study develops a multilevel upper ocean model to more realistically resolve these interactions. The model is based on the one-dimensional turbulence kinetic energy closure developed by Noh et al. [2011], and incorporates new numerical techniques and improved schemes for model physics. The primary improvements include: (1) a surface momentum flux penetration scheme to better depict velocity shear in the diurnal mixed layer; (2) a solar penetration scheme to improve the penetration of visible and near-infrared bands of solar radiation into the mixed layer ocean; (3) a scheme to resolve the cool-skin and warm-layer effects on sea skin temperature; (4) a vertical grid stretch scheme to achieve higher near-surface resolution with fewer vertical levels; (5) a trapezoidal time integration scheme for flexible time steps; (6) a relaxation term of the previous daily mean difference between observed and modeled sea surface temperature. According to the numerical experiments based on the TOGA-COARE IMET mooring buoy data and the validation by observations from the National Data Buoy Center, NOAA, the results indicate that the new upper ocean mixed layer model improves the simulation of the diurnal cycle of SST and sea skin temperature, especially in amplitude.

Original languageEnglish
Pages (from-to)1680-1692
Number of pages13
JournalJournal of Advances in Modeling Earth Systems
Volume7
Issue number4
DOIs
Publication statusPublished - Dec 1 2015
Externally publishedYes

Fingerprint

mixed layer
data buoy
skin
Skin
penetration
sea surface temperature
ocean
upper ocean
TOGA-COARE
Temperature
air-sea interaction
Mooring
Solar radiation
Kinetic energy
kinetic energy
solar radiation
momentum
near infrared
Momentum
Turbulence

All Science Journal Classification (ASJC) codes

  • Global and Planetary Change
  • Environmental Chemistry
  • Earth and Planetary Sciences(all)

Cite this

A multilevel ocean mixed layer model resolving the diurnal cycle : Development and validation. / Ling, Tiejun; Xu, Min; Liang, Xin Zhong; Wang, Julian X.L.; Noh, Yign.

In: Journal of Advances in Modeling Earth Systems, Vol. 7, No. 4, 01.12.2015, p. 1680-1692.

Research output: Contribution to journalArticle

Ling, Tiejun ; Xu, Min ; Liang, Xin Zhong ; Wang, Julian X.L. ; Noh, Yign. / A multilevel ocean mixed layer model resolving the diurnal cycle : Development and validation. In: Journal of Advances in Modeling Earth Systems. 2015 ; Vol. 7, No. 4. pp. 1680-1692.
@article{5f60cc542eec4d1fb0c02f54d6f89483,
title = "A multilevel ocean mixed layer model resolving the diurnal cycle: Development and validation",
abstract = "The representation of transient air-sea interactions is critical to the prediction of the sea surface temperature diurnal cycle and daily variability. This study develops a multilevel upper ocean model to more realistically resolve these interactions. The model is based on the one-dimensional turbulence kinetic energy closure developed by Noh et al. [2011], and incorporates new numerical techniques and improved schemes for model physics. The primary improvements include: (1) a surface momentum flux penetration scheme to better depict velocity shear in the diurnal mixed layer; (2) a solar penetration scheme to improve the penetration of visible and near-infrared bands of solar radiation into the mixed layer ocean; (3) a scheme to resolve the cool-skin and warm-layer effects on sea skin temperature; (4) a vertical grid stretch scheme to achieve higher near-surface resolution with fewer vertical levels; (5) a trapezoidal time integration scheme for flexible time steps; (6) a relaxation term of the previous daily mean difference between observed and modeled sea surface temperature. According to the numerical experiments based on the TOGA-COARE IMET mooring buoy data and the validation by observations from the National Data Buoy Center, NOAA, the results indicate that the new upper ocean mixed layer model improves the simulation of the diurnal cycle of SST and sea skin temperature, especially in amplitude.",
author = "Tiejun Ling and Min Xu and Liang, {Xin Zhong} and Wang, {Julian X.L.} and Yign Noh",
year = "2015",
month = "12",
day = "1",
doi = "10.1002/2015MS000476",
language = "English",
volume = "7",
pages = "1680--1692",
journal = "Journal of Advances in Modeling Earth Systems",
issn = "1942-2466",
publisher = "American Geophysical Union",
number = "4",

}

TY - JOUR

T1 - A multilevel ocean mixed layer model resolving the diurnal cycle

T2 - Development and validation

AU - Ling, Tiejun

AU - Xu, Min

AU - Liang, Xin Zhong

AU - Wang, Julian X.L.

AU - Noh, Yign

PY - 2015/12/1

Y1 - 2015/12/1

N2 - The representation of transient air-sea interactions is critical to the prediction of the sea surface temperature diurnal cycle and daily variability. This study develops a multilevel upper ocean model to more realistically resolve these interactions. The model is based on the one-dimensional turbulence kinetic energy closure developed by Noh et al. [2011], and incorporates new numerical techniques and improved schemes for model physics. The primary improvements include: (1) a surface momentum flux penetration scheme to better depict velocity shear in the diurnal mixed layer; (2) a solar penetration scheme to improve the penetration of visible and near-infrared bands of solar radiation into the mixed layer ocean; (3) a scheme to resolve the cool-skin and warm-layer effects on sea skin temperature; (4) a vertical grid stretch scheme to achieve higher near-surface resolution with fewer vertical levels; (5) a trapezoidal time integration scheme for flexible time steps; (6) a relaxation term of the previous daily mean difference between observed and modeled sea surface temperature. According to the numerical experiments based on the TOGA-COARE IMET mooring buoy data and the validation by observations from the National Data Buoy Center, NOAA, the results indicate that the new upper ocean mixed layer model improves the simulation of the diurnal cycle of SST and sea skin temperature, especially in amplitude.

AB - The representation of transient air-sea interactions is critical to the prediction of the sea surface temperature diurnal cycle and daily variability. This study develops a multilevel upper ocean model to more realistically resolve these interactions. The model is based on the one-dimensional turbulence kinetic energy closure developed by Noh et al. [2011], and incorporates new numerical techniques and improved schemes for model physics. The primary improvements include: (1) a surface momentum flux penetration scheme to better depict velocity shear in the diurnal mixed layer; (2) a solar penetration scheme to improve the penetration of visible and near-infrared bands of solar radiation into the mixed layer ocean; (3) a scheme to resolve the cool-skin and warm-layer effects on sea skin temperature; (4) a vertical grid stretch scheme to achieve higher near-surface resolution with fewer vertical levels; (5) a trapezoidal time integration scheme for flexible time steps; (6) a relaxation term of the previous daily mean difference between observed and modeled sea surface temperature. According to the numerical experiments based on the TOGA-COARE IMET mooring buoy data and the validation by observations from the National Data Buoy Center, NOAA, the results indicate that the new upper ocean mixed layer model improves the simulation of the diurnal cycle of SST and sea skin temperature, especially in amplitude.

UR - http://www.scopus.com/inward/record.url?scp=84959576795&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84959576795&partnerID=8YFLogxK

U2 - 10.1002/2015MS000476

DO - 10.1002/2015MS000476

M3 - Article

AN - SCOPUS:84959576795

VL - 7

SP - 1680

EP - 1692

JO - Journal of Advances in Modeling Earth Systems

JF - Journal of Advances in Modeling Earth Systems

SN - 1942-2466

IS - 4

ER -