Investigating the Relationship between Lightning and Mesocyclonic Rotation in Supercell Thunderstorms

摘要: AbstractRelationships between lightning and jumps physical updraft properties are frequently observed generally understood. However, a more intensive characterization of how relates to traditional radar-based metrics storm intensity may provide further operational utility. This study addresses the supercell mode because intrinsic relationship supercell’s characteristic rotating updraft–downdraft couplet, or mesocyclone, its prolific ability produce severe weather. Lightning radar measurements diverse sample 19 thunderstorms were used assess conceptual model that mesocyclone be linked by updraft’s role in formation enhancement each. Analysis early stages development showed initial jump occurred prior time mesocyclogenesis inferred from three methods median values 5–10 min. Comparison subsequent increases...