Abstract
An integrated vertical-slantwise convective parameterization scheme, based on the vertical Kuo-Anthes and the slantwise Nordeng convective parameterization schemes, is introduced into the MM5 model. By employing the MM5 model with the proposed scheme, numerical simulations of a snowstorm event that occurred over southern China on 28–29 January 2008 and of Typhoon Haitang (2005) are conducted. The results indicate that during the snowstorm event, the atmosphere was convectively stable in the vertical direction but with conditional symmetric instability (CSI) in the lower troposphere, and when the area of CSI developed and extended to upper levels, strong rising motion occurred and triggered the release of large amount of energy, producing enhanced convective precipitation with the total precipitation much closer to the observation. The development and strengthening of CSI corresponded to changes in the intensity of snowfall, convergence, and ascending motions of air, revealing that CSI was responsible for the initiation and growth of the snowstorm. The results from a 72-h explicit simulation of Typhoon Haitang indicate that CSI occurred mainly at lower levels with a well-defined spiral structure, and it tended to have a larger impact on the intensity of typhoon than on its track. The minimum pressure at the typhoon center for the 72-h runs with the integrated vertical-slantwise convective parameterization scheme was on average 3 hPa (maximum 8 hPa) lower than that from the runs with only the vertical cumulus parameterization scheme. Introducing the influence of CSI into the model has improved the warm core structure at the middle and upper levels of the typhoon, with stronger and persistent upward motions causing increased precipitation, and the latent heat released through convection in turn made the typhoon develop further.
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References
Anthes, R. A., 1977: A cumulus parameterization scheme utilizing a one-dimensional cloud model. Mon. Wea. Rev., 105(3), 270–286.
Bennetts, D. A., and B. J. Hoskins, 1979: Conditional symmetric instability. A possible explanation for frontal rainbands. Quart. J. Roy. Meteor. Soc., 105(446), 945–962.
Black, R. A., H. B. Bluestein, and M. L. Black, 1994: Unusually strong vertical motions in a Caribbean hurricane. Mon. Wea. Rev., 122(12), 2722–2739.
Chi Zaixiang, Hu Yuewen, and Bai Hui, 2005: Analysis on symmetric instability of “2003.1” snowstorm event in Southeast Guizhou. Plateau Meteor., 24(5), 792–797. (in Chinese)
Clark, J. H., and R. P. James, 2002: A reexamination of the mechanisms responsible for banded precipitation. Mon. Wea. Rev., 130(12), 3074–3086.
Emanuel, K. A., 1979: Inertial instability and mesoscale convective systems. Part I: Linear theory of inertial instability in rotating visous fluids. J. Atmos. Sci., 36(12), 2425–2449.
—, 1983: The Lagrangian parcel dynamics of moist symmetric instability. J. Atmos. Sci., 40(10), 2368–2376.
—, 1985: Frontal circulations in the presence of small moist symmetric stability. J. Atmos. Sci., 42(10), 1062–1071.
Fei Jianfang and Lu Hancheng, 1996: Instability of inertia-internal gravity waves and symmetric instability in circular vortexes. Chinese J. Atmos. Sci., 20(1), 54–62. (in Chinese)
Greleyn, J., 1985: On a simple parameter-free partition between moistening and precipitation in the Kuo scheme. Mon. Wea. Rev., 113(3), 405–407.
Hoskins, B. J., and L. Draghici, 1977: The forcing of ageostropic motion according to the semigeostrophic equations in an isentropic coordinate model. J. Atmos. Sci., 34(12), 1859–1867.
Kuo, H. L., 1965: On the formation and intensification of tropical cyclones through latent heat release by cumulus convection. J. Atmos. Sci., 22(1), 40–63.
Kurihara, Y., 1973: A scheme for moist convective adjustment. Mon. Wea. Rev., 101(7), 547–553.
Lindstrom, S. S., and T. E. Nordeng, 1992: Parameterized slantwise convection in a model. Mon. Wea. Rev., 120(5), 742–756.
Liu Yiming, 1998: Application of cumulus parameterization scheme in China. Acta Meteor. Sinica, 56(2), 247–256. (in Chinese)
Lu Hancheng, Zhong Ke, and Zhang Dalin, 2001: Mesoscale characters of the 1992 hurricane Andrew. Chinese J. Atmos. Sci., 25(6), 827–836. (in Chinese)
—, —, and —, 2002: A possible developing mechanism of the slantwise updraft in the eyewall of the 1992 hurricane Andrew: Nonlinear convective and symmetrical instability. Chinese J. Atmos. Sci., 26(1), 83–90. (in Chinese)
Market, P. S., and D. Cissell, 2002: Formation of a sharp snow gradient in a Midwestern heavy snow event. Wea. Forecasting, 17(4), 723–738.
Moore, J. T., and T. E. Lambert, 1993: The use of equivalent potential vorticity to diagnose regions of conditional symmetric instability. Wea. Forecasting, 8(3), 301–308.
Nicosia, D. J., and R. H. Grumm, 1999: Mesoscale band formation in three major northeastern United States snowstorms. Wea. Forecasting, 14(3), 346–368.
Nordeng, T. E., 1987: The effect of vertical and slantwise convection on the simulation polar lows. Tellus, 39A(4), 354–375.
Ooyama, K. V., 1969: Numerical simulation of the life cycle of tropical cyclones. J. Atmos. Sci., 26(1), 3–40.
Schultz, D. M., and P. N. Schumacher, 1999: The use and misuse of conditional symmetric instability. Mon. Wea. Rev., 127(12), 2709–2732.
Wang Jianzhong and Ding Yihui, 1995: Research of moist symmetric instability in a strong snowfall in North China. Acta Meteor. Sinica, 53(4), 451–460. (in Chinese)
Wiesmueller, J. L., and S. M. Zubrick, 1998: Evaluation and application of conditional symmetric instability, equivalent potential vorticity, and trontogenetical forcing in an operational forecasting environment. Wea. Forecasting, 13(1), 84–101.
Zhang, D. L., Y. Liu, and M. K. Yau, 2000: A multiscale numerical study of Hurricane Andrew (1992). Part I: Dynamically induced vertical motion. Mon. Wea. Rev., 128(11), 3772–3788.
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Supported by the National Nature Science Foundation of China (41005029 and 40830235) and National Basic Research and Development (973) Program of China (2009CB421502).
Chinese version published in Vol. 68, No. 2, 162–172, 2010
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Fei, J., Wu, R., Huang, X. et al. Development of an integrated vertical-slantwise convective parameterization scheme and its associated numerical experiments. Acta Meteorol Sin 25, 405–418 (2011). https://doi.org/10.1007/s13351-011-0402-3
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DOI: https://doi.org/10.1007/s13351-011-0402-3