Radarowa detekcja superkomórek burzowych w Polsce

• Autorzy: Pilorz W.

Warianty tytułu

EN

Supercell storm radar detection in Poland

• Języki publikacji: PL

Abstrakty

EN

“Supercell storms are capable of producing the most violent of hail, wind and tornado events (Moller et. al. 1994); thus they are the most important storm type to forecast and detect” (Moller 2001). Supercell storm is defined by “presence of a deep and persistent, rotating updraft called a mesocyclone” (Weisman and Klemp 1984). Mesocyclone presence leads to the specific vertical storm structure seen as a Bounded Weak Echo Region. Mesocyclone presence also leads to the changes in the horizontal shape of the storm, observed on the radar reflecivity in a low elevation as a hook echo. Large hail, associated with supercells, is a very important threat to detect. It can be easily recognized by the presence of the reflecivity more than 50 dBZ, above 8 km above ground level (Burgess and Lemon 1990). Nine cases of supercells in Poland between 2007 and 2013 were examined. Results show that all quoted features were present. Moreover, most of them appeared before the threat which they indicate. It means that threats associated with supercells can be predicted in a short time.

Słowa kluczowe

PL

superkomórka burzowa; radar meteorologiczny; sygnatury radarowe; nowcasting; zagrożenia meteorologiczne

EN

supercell storm; weather radar; radar signatures; nowcasting; meteorological threats

• Wydawca: Polskie Towarzystwo Geograficzne, Oddział Teledetekcji i Geoinformatyki
• Czasopismo: Teledetekcja Środowiska
• Rocznik: 2014
• Tom: T. 51
• Strony: 93--105
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Pilorz W.

• Uniwersytet Śląski, Wydział Nauk o Ziemi

Bibliografia

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• BEBŁOT G., DUBIEL B., KONARSKI J., TUSZYŃSKA I., 2010. Groźne zjawiska atmosferyczne na terenie Polski w dniu 15 sierpnia 2008 r. [W:] Maciejewski M., Ostojski M.S.(red.) Ryzyko w problemach zagrożeń. Instytut Meteorologii i Gospodarki Wodnej, Warszawa, s. 8 – 33.
• BUNKERS M.J., KLIMOWSKI J.W., ZEITLER J.W., THOMPSON L.R., WEISMAN M.L., 1998. Predicting supercell motion using hodograph techniques. Preprints 19 Conference on Severe Local Storms, American Meteorological Society, Minneapolis, MN, s. 592 – 594.
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• CHISHOLM A.J., RENICK J.H., 1972. The kinematics of multicell and supercell Alberta hailstorms. Alberta hail studies 1972, Research council of Alberta Hail Studies Rep, s. 72-2, 24-31.
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• DOSWELL C.A., BURGESS D.W., 1993. Tornadoes and tornadic storms: A review of conceptual models. [W:] Church C., Burgess D., Doswell., Davies-Jone R., 1993: The Tornado: Its Structure, Dynamics, Prediction and Hazards, Geophys. Monogr., American Geophysical Union, No. 79, s. 161 – 172.
• DOSWELL C.A., MOLLER A.R., BROOKS H.E., 1999. Storm spotting and public awareness since the first tornado forecasts of 1948. Weather forecasting, 14, s. 544-577.
• FUJITA T., 1965. Formation and steering mechanisms of tornado cyclones and associated hook echoes. Monthly Weather Review, vol 93, No. 2, s. 67 – 78.
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• MOLLER A.R., 2001. Severe Local Storms Forecasting. [W:] Doswell C.A.(red.), 2001, Severe Convective Storms. American Meteorological Society, Boston.
• MOLLER A.R., DOSWELL C.A., FOSTER M.P., WOODALL G.R., 1994. The opreational recognition of supercell thunderstorms environments and storm structures. Weather Forecasting, 9, s. 327-347.
• TUSZYŃSKA I., 2011. Charakterystyka produktów radarowych. Instytut Meteorologii i Gospodarki Wodnej – Państwowy Instytut Badawczy, Warszawa.
• WALCZAKIEWICZ S., TASZAREK M., 2014. Superkomórkowa trąba powietrzna z dnia 14 lipca 2012 r. Materiały konferencyjne konferencji V Ogólnopolski Zlot Polskich Łowców Burz, Poznań, s. 8.
• WEISMAN M.L., KLEMP J.B., 1984. The structure and classification of numerically simulated convective storms in directionally-varying wind shears. Monthly Weather Review, 112, s. 2479 – 2498.
• WITT A., 1996. The relationship between low-elevation WSR-88D reflectivity and hail at the ground using precipitation observations from the VORTEX project. Preprints 18 Conference on Severe Local Storms, American Meteorological Society, San Francisco, CA, s. 183 – 185.
• Strony internetowe:
• http://forum.lowcyburz.pl/viewtopic.php?f=694&t=667 (dostęp: 08.12.2013).
• ESWD, 2014. European Severe Weather Database: http://www.essl.org/cgi-bin/eswd/eswd.cgi (dostęp: 06.01.2014 - 05.04.2014).