Journal article
Subdaily Rain-Rate Properties in Western Java Analyzed Using C-Band Doppler Radar
S Lestari, A Protat, V Louf, A King, C Vincent, S Mori
Journal of Applied Meteorology and Climatology | Published : 2022
Abstract
Jakarta, a megacity in Indonesia, experiences recurrent floods associated with heavy rainfall. Characteristics of subdaily rainfall and the local factors influencing rainfall around Jakarta have not been thoroughly investigated, primarily because of data limitations. In this study, we examine the frequency and intensity of hourly and daily rain rate, including spatial characteristics and variations across time scales. We use 6-min C-band Doppler radar and 1-min in situ data during 2009–12 to resolve spatial rain-rate characteristics at higher resolution than previous studies. A reflectivity–rain rate (Z–R) relationship is derived (Z = 102.7R1.75) and applied to estimate hourly rain rate. Our..
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Grants
Awarded by National Computational Infrastructure
Funding Acknowledgements
This research is supported by the Australia Award Scholarship (AAS), Hadi Soesastro Prize and the Australian Research Council (ARC) Centre of Excellence for Climate Extremes (CLEX) (CE170100023). We thank the Weather Modification Unit, the Agency for the Assessment, and Application of Technology (BPPT), Indonesia, together with the Japan Agency for the Marine-Earth Science and Technology (JAMSTEC), Japan, for providing disdrometer, C-band Doppler radar, and rainfall datasets from the Japanese Earth Observation System Promotion Program (JEPP)Hydrometeorological Array for Intraseasonal Variation-Monsoon Automonitoring (HARIMAU) project (JFY 2005-2009). This research was conducted with the assistance of the resources and services from the National Computational Infrastructure (NCI), which is supported by the Australian Government. Author King is supported by the ARC DECRA Fellowship (DE180100638), and author Vincent is supported by the ARC CLEX (CE170100023).