Abstract
The method and results of radar researches of vertically and volumetric integrated water content in powerful cumulonimbus (Cb) clouds obtained for the first time are considered. It is established that in hailstorms of Northern Caucasus vertically integrated liquid (VIL) water content varies in limits from 8 up to 50 kg/m2, in shower clouds—from 0.5 up to 12 kg/m2, in Nimbostratus (Ns) clouds—it is usual less than 0.5 kg/m2 and in clouds with a drizzle—less than 0.05 kg/m2. The main water content of hailstorms in a stage of development is concentrated in their supercooled layer, in a maturity stage—in a layer from the ground up to height 8–10 km and in a stage of dissipation—in a ground layer. The ratio of VIL of the supercooled and warm parts of cloud allows estimating hail dangers of clouds and stage of their development.
It is shown that the volume of hailstorms varies in limits from 103 up to 5 × 104 km3 and their volumetric integrated mass (VIM) of water content — from 105 up to 6 × 106 tons. The volume of hail localization seldom exceeds 5–25% from total cloud volume, but its contribution to VIM achieves 30–60%. Speed of precipitation formation in powerful hailstorms achieves 1 × 104−5 × 105 tons/min and the same order of value has speed of recession of VIM in their stage of dissipation.
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References
M. T. Abshaev, “Radar Detection of Hail,” Izv. Akad. Nauk SSSR, Fiz. Atmos. Okeana 18(5), 483–494 (1982).
M. T. Abshaev and A. M. Malkarova, Assessment of Hail Prevention Efficiency (Gidrometeoizdat, St. Petersburg, 2006) [in Russian].
M. T. Abshaev and M. M. Zhuboev, “Rocket Studies of Airflow Structure in Cumulonimbus Clouds,” Trudy VGI, No. 33, 57–66 (1976).
D. Atlas, “Advances in Radar Meteorology,” (Gidrometeoizdat, Leningrad, 1967) [in Russian].
N. I. Vul’fson, Study of Convective Motions in a Free Atmosphere (Akad. Nauk SSSR, Moscow, 1961) [in Russian].
R. Doviak and D. Zrnich, Doppler Radars in Meteorological Observations (Gidrometeoizdat, Leningrad, 1988) [in Russian].
A. M. Borovikov, V. V. Kostarev, I. P. Mazin, and A. A. Chernikov, Radar Measurements of Precipitation (Gidrometeoizdat, Leningrad, 1967) [in Russian].
Clouds and Cloudy Atmosphere: A Handbook, Ed. by I. P. Mazin and A. Kh. Khrgian (Gidrometeoizdat, Leningrad, 1989) [in Russian].
V. D. Stepanenko, Radar in Meteorology (Gidrometeoizdat, Leningrad, 1973) [in Russian].
M. T. Abshaev and A. M. Malkarova, “Radar Estimation of Hail Damage,” in Proc. 8th WMO Sci. Conf. on Weather Modif. Casablanca, Morocco, 2003 (Morocco, 2003), pp. 471–474.
D. R. Green and R. A. Clark, “VIL as Indicator of Explosive Development in Severe Storm,” in Proc. 7th Conf. on Severe Local Storms (AMS, 1971), pp. 97–104.
A. I. Heymsfield, “Processes of Hydrometeor Development in Oklahoma Convective Clouds,” J. Atmos. Sci. 41(19), 2811–2835 (1984).
“Report of the Meeting of Experts to Review the Present Status of Hail Suppression,” in WMO Wea Modif. Program. Hail Suppression Research, Nalchik, Russia, September 27–October 2, 2003) (2003), p. 140.
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Original Russian Text © M.T. Abshaev, A.M. Abshaev, A.M. Malkarova, Zh.Yu. Mizieva, 2009, published in Izvestiya AN. Fizika Atmosfery i Okeana, 2009, Vol. 45, No. 6, pp. 782–788.
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Abshaev, M.T., Abshaev, A.M., Malkarova, A.M. et al. Radar estimation of water content in cumulonimbus clouds. Izv. Atmos. Ocean. Phys. 45, 731–736 (2009). https://doi.org/10.1134/S0001433809060061
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DOI: https://doi.org/10.1134/S0001433809060061