Open AccessStability Index and Thunderstorms over Nagpur
Author(s) -
B. L. SHARMA,
K. K. SHARMA
Publication year - 1966
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v17i2.5825
Subject(s) - thunderstorm , mixing ratio , meteorology , atmospheric sciences , mixing (physics) , environmental science , climatology , geology , geography , physics , quantum mechanics
In this study, dependence of thunderstorm occurrences on stability index and the mean mixing ratio in the 850 to 700-mb layer has been examined. It is seen that most of the thunderstorms occur when the mean mixing ratio lies between 4.5 and 9.0 g/kg in March and April increasing to 6.5 to 13.0 g/kg in May and June. No thunderstorms occur when the mean mixing ratio of 850 and 700-mb layer is less than 3.5 g/kg.
Further, the difference of mixing ratios between 850 and 700-mb layers, which gives an idea of stability or instability in the 850 to 700-mb layer, was also examined for its influence on the thunderstorm formation and growth in a certain height group. The comparison of these heights with radar echo heights show a convincing proximity.