Journal article
Variability of Jakarta Rain-Rate Characteristics Associated with the Madden–Julian Oscillation and Topography
S Lestari, A King, C Vincent, A Protat, D Karoly, S Mori
Monthly Weather Review | Published : 2022
Abstract
Research on the interaction between the Madden–Julian oscillation (MJO) and rainfall around Jakarta is limited, although the influence of the MJO on increased rainfall is acknowledged as one of the primary causes of flooding in the region. This paper investigates the local rainfall response around Jakarta to the MJO. We used C-band Doppler radar in October–April during 2009–12 to study rain-rate characteristics at much higher resolution than previous analyses. Results show that the MJO strongly modulates rain rates over the region; however, its effect varies depending on topography. During active phases, MJO induces a high rain rate over the ocean and coast, meanwhile during suppressed phase..
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Grants
Awarded by Japan International Cooperation Agency
Funding Acknowledgements
This research is supported by the Australia Award Scholarship (AAS), Hadi Soesatro Prize, and the Australian Research Council (ARC) Centre of Excellence for Climate Extremes (CLEX) (CE170100023). We thank the Center for Regional Resources Development (PTPSW)-BRIN, Indonesia, together with the Japan Agency for the Marine-Earth Science and Technology (JAMSTEC), Japan for providing C-band Doppler radar from "Hydrometeorological Array for Intraseasonal Variation-Monsoon Automonitoring (HARIMAU)" Project (JFY 2005-2009), and the Science Technology Research Partnership for Sustainable Development (SATREPS) "Maritime Continent Center of Excellence (MCCOE)" Project (JFY 2009-2013) of the Japan Science and Technology Agency (JST)/Japan International Cooperation Agency (JICA). 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. A. King is supported by the ARC DECRA Fellowship (DE180100638) and C. Vincent is supported by the ARC CLEX (CE170100023).