Numerical modelling of the convective cell behind a cold front: The moisture and heat fluxes

Authors: Ivanov, S., G. Ivus. and J. Palamarchuk

Year: 2010

Issue: 06

Pages: 120-129

Abstract

Sensible and latent heat fluxes within a convective cell behind a cold front are studied in a high resolution model. The mask approach allows us to obtain quantitative estimations of heat and mass transport in the vertical direction governed by the convective circulation. Layers of the generation, intensification and decay of ascending motions are outlined. A return circulation with descending motions in the model is considered and amount of heat transport from the low to middle troposphere is evaluated.

Tags: convective cell; heat and mass fluxes

Bibliography

  1. Иванов С.В., Ивус Г.П., Пишняк Д.В. Численное моделирование мезомасштабных особенностей атмосферы в зоне холодного фронта // Метеорология, гидрология и климатология – 2010. – Вып.51. – С.4-14.
  2. Arakawa A., Schubert W.H. Interaction of a cumulus cloud ensemble with the large-scale environment // J.Atmos.Sci. – 1974. – V.31. – P.674-701.
  3. Deardorff J.W. Stratocumulus-capped mixed layers derived from a three-dimensional model // Bound.Layer.Meteorol. – 1980. – V.18. – P.495-527.
  4. Gregory D., Miller M.J. A numerical study of the parameterization of deep tropical convection // QJR. Meteorol.Soc. – 1989. – V.115. – P.1209-1242.
  5. Guichard F., Petch J.C., Redelsperger J.-L. et al. Modelling the diurnal cycle of deep precipitating convection over land with cloud-resolving models and single-column models // QJR.Meteorol.Soc. – 2004. – V.130. – P.3139-3172. doi: 10.1256/qj.03.145
  6. Khairoutdinov M.F., Randall D.A. Similarity of deep continental cumulus convection as revealed by a three-dimensional cloud-resolving model // J.Atmos.Sci. – 2002. – V.50. –P.2250-2566.
  7. Ryan B.F., Katzfey J.J., Abbs D.J. et al. Simulations of a cold front by cloud-resolving, limited-area, and large-scale models, and a model evaluation using in situ and satellite observations // Mon.Wea. Rev. – 2000. – V.128. – P.3218-3235.
  8. Yanai M., Esbensen S., Chu J.H. Determination of bulk properties of cloud clusters from large-scale heat and moisture budgets // J.Atmos.Sci. – 1973. – V.30. – P.611-627.
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