PRECURSOR WEATHER CONDITIONS FOR HAIL-EVENT FORECASTING IN THE MOLDAVIA

Aerul şi Apa: Componente ale Mediului

VASILICĂ ISTRATE¹  FLORENTINA BĂRCĂCIANU¹  LIVIU APOSTOL¹  IULIAN IORDACHE¹  LUCIAN SFÎCĂ¹ 

[1] „Alexandru Ioan Cuza” University from Iaşi, Faculty of Geography and Geology, Department ofGeography, Iasi, Romania;

关键词: freezing level;    isotherm hight;    lifted index;    hailstone;   

DOI  :  10.17378/AWC2016_26

来源: DOAJ

【 摘 要 】

he present work analysed a statistically representative number of severe convective events which caused hail and material damage during 1990-2015. For these episodes heights of 0oC, -6oC, -10oC and -20oC isotherms were analyzed. In the layers between these four isotherms, the formation and growth of hailstones occur. The height of these isotherms in the period preceding hail is essential in weather forecast of this phenomenon. Lifted index values recorded before hail events are also correlated with height isotherms. The altitudinal differences between the height of -6oC and -20oC isotherm and freezing level which represents intervals of initiation and formation of hail are identified. Not at last the values of the meteorological indices used to forecast the potential formation and hail falling in extracarpathian Moldavia are presented in details.

【 授权许可】

Unknown