Linear Rainfall Features and Their Association with Rainfall Extremes near Melbourne, Australia

نویسندگان

چکیده

Abstract Linear precipitation systems are a prominent contributor to rainfall over Melbourne, Australia, and the surrounding region. These often convective in nature, frequently associated with cold fronts, some cases can lead significant flash flooding. Various types of linearly organized (e.g., squall lines, quasi-linear systems) have been subject much research United States elsewhere, but thus far relatively little analysis has done on linear Australia. To begin understand extremes how they may change this region future, it is useful explore contribution these characteristics that define them. end, we examined recently developed Australian Radar Archive (AURA), identifying objects meet specific set relevant criteria, used multiple methods identify heavy extreme daily rainfall. We found average, days contribute half total 70%–85% heavy/extreme Melbourne The occur tend be larger, slower-moving, longer-lived, while those also more intense greater degree southward propagation than other days.

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ژورنال

عنوان ژورنال: Monthly Weather Review

سال: 2021

ISSN: ['1520-0493', '0027-0644']

DOI: https://doi.org/10.1175/mwr-d-21-0007.1