Severe weather, cloud, and cumulus parameterization
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Illustrations
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The location of the cyclones in the western United States at 6-hour intervals. The cyclone over Nevada (eastern Idaho) first appeared at 1200 UTC 1 (0000 UTC 2) March 1985. Also, the observed and predicted time series of the mean sea level pressure at the center of the cyclones in Nevada (solid filled bars) and in Idaho (hatched bars). |
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Time evolution of the vertical velocity with a contour inverval of 2 m s-1 and the pressure gradient force with a contour inverval of 0.03 m s-2 from the OT case Run 4. (Chen, S.H. and W.Y. Sun 2002) |
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The schematic structure of the updraft (U) and downdraft (D) in the tilting cloud. (Chen, S.H. and W.Y. Sun 2004) |
Publications
Chen, S. H., and W. Y. Sun, 2004: An explicit one-dimensional time-dependent tilting cloud model. J. Atmos. Sci. 61, 23, 2797–2816.
Chen, S. H., and W. Y. Sun, 2002: A one-dimensional time dependent cloud model. J. Meteor. Soc. Japanese 80, 99–118.
Sun, W. Y., 2002: Numerical modeling in the atmosphere. J. Korean Meteorol. Soc. 38, 3, 237-251.
Chen, S. H., W. Y. Sun, and W. K. Tao, 1998: Sensitivity test of a one-dimensional cloud model. Preprint, the Conference on Cloud Physics; August 17–21; Everett, Washington. 179-180.
Haines, P. A., J. D. Chern., and W. Y. Sun, 1997: Numerical simulation of the Valentine’s Day storm during WISP 1990. Tellus 49A, 595-612.
Sun, W. Y. and P. A. Haines, 1996: Semi-prognostic tests of a new mesoscale cumulus parameterization scheme. Tellus 48A, 272-289.
Chern, Jiun-Dar, 1994: Numerical simulation of cyclogenesis over the western United States. Ph.D. thesis, 178 pp.
Hsu, W. R. and W. Y. Sun, 1994: A numerical study of a low-level jet and its accompanying secondary circulation in a Mei-Yu system. Mon. Wea. Rev 122, 324–340.
Haines, A. P. and W. Y. Sun, 1994: A convective cloud model for use in a cumulus parameterization scheme. Mon. Wea. Rev. 122, 165–182.
Yildirim, Ahmet, 1994: Numerical study of an idealized cyclone evolution and its sub-synoptic features. Ph.D. thesis, 145 pp.
Haines, Patrick A., 1992: Numerical simulation of a squall line: Tests of a new cumulus parameterization scheme. Ph.D. thesis, 395 pp.
Sun, W. Y., 1987: Mesoscale convection along the dryline. J. Atmos. Sci. 44, 1394–1403.
Sun, W. Y., 1984b: Rainbands and symmetric instability. J. Atmos. Sci. 41, 3412–3426.
Sun, W. Y., 1982: Cloud bands in the atmosphere. In: Agee and Asai, ed. Cloud Dynamics. Boston: Reidel Publishing. 179-191.
Sun, W. Y., 1978: Stability of deep cloud streets. J. Atmos. Sci. 35,466–483.