Journal article
Two Quasi-Linear Convective Systems, Their Mesoscale Structure and Moisture Sources
SM Hitchcock, TP Lane
Monthly Weather Review | Published : 2023
Abstract
Over half of the total rainfall and more than 70% of heavy and extreme rainfall in the Melbourne, Australia, region occurs on days with linearly organized precipitation. These systems are typically convective in nature and frequently associated with cold fronts. It is useful to understand the processes that support extreme rainfall in organized convection, for prediction of both near-term and future extreme rainfall, and the topography and climate of Melbourne are different from many of the regions where QLCSs have been studied more extensively (e.g., the U. S. Great Plains region). On both 7 and 8 December 2010, a QLCS passed through theMelbourne region. Both QLCSs resembled classic systems..
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Grants
Awarded by National Computational Infrastructure
Funding Acknowledgements
Thank you to Michael Reeder for his feedback on a draft of this manuscript and for numerous in- sightful discussions, particularly around Australian fronts. Thanks to Andrew King, Claire Vincent, Andrew Brown, Ewan Short, and others in the University of Melbourne and CLEX weather and climate groups, as well as Dean Narra- more for useful discussions at various stages of this project. Thanks to Joshua Soderholm for his assistance with many of the observations, and to Andrew Winchester for helping me to track down the exact launch times of the local soundings. Thanks to Scott Wales for helping me troubleshoot the trajectories, to the rest of CLEX administration and Computational Modeling Systems teams for their continued support. This work is supported by the ARC Centre of Excellence for Climate Extremes (CE170100023) and also bene fited from computing provided by the National Computational Infrastructure (NCI) facility. Frontogenesis calculations were performed using MetPy (May et al. 2021) .