Journal
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
Volume 128, Issue 15, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2022JD038396
Keywords
precipitation; charged raindrops; thunderstorms; ice melting
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Raindrop size distributions observed with a particle size velocity disdrometer are compared with the size distributions of charged raindrops obtained with a special device. The measurements were conducted during three thunderstorms in Cordoba, Argentina. The results show a systematic difference between the two distributions, suggesting that the larger raindrops recorded by the disdrometer might have also been melted ice particles.
Raindrop size distributions observed with a particle size velocity disdrometer are contrasted with respect to the size distributions of charged raindrops obtained with a special device designed to determine the size and electric charge of raindrops. The measurements were performed for three thunderstorms occurred in the vicinity of Cordoba, Argentina during RELAMPAGO campaign. In general, the results show that more than 66% of the raindrops measured with the optical disdrometer have diameters 1 mm. A systematic difference between both raindrops size distributions was observed, which remains during the whole evolution of the storms. Under the hypothesis that the electrically charged raindrops were melted ice hydrometeors, we analyze if the larger raindrops recorded by the disdrometer during these storms may also have been melted ice particles.
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