Journal article
A case study of a West Sumatra squall line using satellite observations
Clemente Clemente Lopez-Bravo, Claire Vincent, Yi Huang, Todd Lane
Monthly Weather Review | American Meteorological Society | Published : 2023
Abstract
A West Sumatra squall line occurred on 10 January 2016, with a clear offshore propagation of convection. Satellite-derived products from Himawari-8 Advanced Himawari Imager and the Geostationary Cloud Algorithm Testbed Geocat are used to investigate the westward propagation of cloudiness from Sumatra to the Indian Ocean with a lifetime of 1.5 days. A convective mask based on deep convective cell detection and a cell-tracking algorithm are used to estimate the propagation speed of the cloud system. Two distinct mesoscale convective responses are identified: 1) a rapid development in South Sumatra is influenced by the convective environment over the Indian Ocean. The propagation speed is estim..
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Grants
Awarded by National Computational Infrastructure
Funding Acknowledgements
This work was funded by the Melbourne Research Scholarship and the Australian Research Council's (ARC) Discovery Project DP190100786 for C. Lopez-Bravo and the ARC Centre of Excellence for Climate Extremes CE170100023 for C. L. Vincent, Y. Huang, and T. P. Lane. The production of derived-satellite data from Himawari-8 AHI for this research was undertaken on the NCI National Facility in Canberra, Australia, supported by the Australian Commonwealth Government. The authors wish to thank the three reviewers for their insightful feedback. The JMA Meteorological Satellite Center; The Bureau of Meteorology, Australia, and the CSPP- Geo project (CIMSS-UW-Madison). Thanks also to Paola Petrelli of the University of Tasmania and Kelsey Druken of the Australian National University for all the facilities during the dataset publication process, and Scott Wales of the University of Melbourne for technical support.