Browse > Article
http://dx.doi.org/10.14191/Atmos.2017.27.3.317

A Study on Improvement of High Resolution Regional NWP by Applying Ocean Mixed Layer Model  

Min, Jae-Sik (Weather Information Service Engine Institute, Hankuk University of Foreign Studies)
Jee, Joon-Bum (Weather Information Service Engine Institute, Hankuk University of Foreign Studies)
Jang, Min (Weather Information Service Engine Institute, Hankuk University of Foreign Studies)
Park, Jeong-Gyun (Weather Information Service Engine Institute, Hankuk University of Foreign Studies)
Publication Information
Atmosphere / v.27, no.3, 2017 , pp. 317-329 More about this Journal
Abstract
Ocean mixed layer (OML) depth affects diurnal cycle of sea surface temperature (SST) induced by change of solar radiation absorption and heat budget in ocean. The diurnal SST variation can lead to convection over the ocean, which can impact on localized precipitation both over coastal and inland. In this study, we investigate the OML characteristics affecting the diurnal cycle of SST for the Korean Peninsula and surrounding areas. To analyze OML characteristics, HYCOM oceanic mixed layer depth (MLD) and wind field at 10 m from ERA-interim during 2008~2016 are used. In the winter, MLD is deeply formed when the strong wind field is located on perpendicular to continental slope over deep seafloor areas. Besides, cooling SST-induced vertical mixing in OML is reinforced by dry cold air originated from Siberia. The OML in summer is shallowly distributed about 20 m. In order to estimate the impact of OML model in high resolution NWP model, four experimental simulations are performed. At this time, the prognostic scheme of skin SST is applied in NWP to simulate diurnal SST. The simulation results show that CNTL (off-OML) overestimates diurnal cycle of SST, while EXPs (on-OML) indicate similar results to observations. The prediction performance for precipitation of EXPs shows improvement compared with CNTL over coastal as well as inland. This results suggest that the application of the OML model in summer season can contribute to improving the prediction for performance of SST and precipitation over coastal area and inland.
Keywords
Sea surface temperature; diurnal cycle; ocean mixed layer; mixed layer depth; NWP;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Merchant, C. J., M. J. Filipiak, P. Le Borgne, H. Roquet, E. Autret, J.-F. Piolle, and S. Lavender, 2008: Diurnal warm-layer events in the western Mediterranean and European shelf seas. Geophys. Res. Lett., 35, L04601, doi:10.1029/2007GL033071.   DOI
2 Noh, Y., E. Lee, D.-H. Kim, S.-Y. Hong, M.-J. Kim, and M.-L. Ou, 2011: Prediction of the diurnal warming of sea surface temperature using an atmosphere-ocean mixed layer coupled model. J. Geophys. Res., 116, C11023, doi:10.1029/2011JC006970.   DOI
3 Pollard, R. T., P. B. Rhines, and R. O. Thompson, 1972: The deepening of the wind-mixed layer. Geophys. Astrophys. Fluid Dyn., 4, 381-404, doi:10.1080/03091927208236105.   DOI
4 Woolnough, S. J., F. Vitart, and M. A. Balmaseda, 2007: The role of the ocean in the Madden-Julian Oscillation: Implications for MJO prediction. Quart. J. Roy. Meteor. Soc., 133, 117-128.   DOI
5 Wu, C.-C., W.-T. Tu, I.-F. Pun, I.-I. Lin, and M. S. Peng, 2016: Tropical cyclone-ocean interaction in Typhoon Megi (2010)-A synergy study based on ITOP observations and atmosphere-ocean coupled model simulations. J. Geophys. Res., 121, 153-167, doi:10.1002/2015JD024198.   DOI
6 Zeng, X., and A. Beljaars, 2005: A prognostic scheme of sea surface skin temperature for modelling and data assimilation. Geophys. Res. Lett., 32, L14605, doi:10.1029/2005GL023030.   DOI
7 Dai, A., and K. E. Trenberth, 2003: The diurnal cycle and its depiction in the community climate system model. J. Climate, 17, 930-951.
8 Bleck, R., 2002: An ocean general circulation model framed in hybrid isopycnic-Cartesian coordinates. Ocean Modelling, 4, 55-88.   DOI
9 Brunke, M. A., X. Zeng, V. Misra, and A. Beljaars, 2008: Integration of a prognostic sea surface skin temperature scheme into weather and climate models. J. Geophy. Res., 113, D21117, doi:10.1029/2008JD010607.   DOI
10 Clayson, C. A., and A. S. Bogdanoff, 2012: The effect of diurnal sea surface temperature warming on climatological air-sea fluxes. J. Climate, 26, 2546-2556, doi:10.1175/JCLI-D-12-00062.1.   DOI
11 Kim, E.-J., and S.-Y. Hong, 2010: Impact of air-sea interaction on East Asian summer monsoon climate in WRF. J. Geophys. Res., 115, D19118, doi:10.1029/2009JD013253.   DOI
12 Donlon, C. J., M. Martin, J. Stark, J. Roberts-Jones, E. Fiedler, and W. Winner, 2012: The operational sea surface temperature and sea ice analysis (OSTIA) system. Remote Sens. Environ., 116, 140-158, doi:10.1016/j.rse.2010.10.017.   DOI
13 Fairall, C. W., E. F. Bradley, J. S. Godfrey, G. A. Wick, J. B. Edson, and G. S. Young, 1996: Cool-skin and warm-layer effects on sea surface temperature. J. Geophys. Res., 101, 1295-1308.   DOI
14 Kawai, Y., K. Otsuka, and H. Kawamura, 2006: Study on diurnal sea surface warming and a local atmospheric circulation over Mutsu Bay. J. Meteor. Soc. Japan, 84, 725-744.   DOI
15 Masson, S., P. Terray, G. Madec, J.-J. Luo, T. Yamagata, and K. Takahashi, 2012: Impact of intra-daily SST variability on ENSO characteristics in a coupled model. Climate Dyn., 39, 681-707, doi:10.1007/s00382-011-1247-2.   DOI