Characteristic of rain rate associated with floods during the 2021 rainy season around Jakarta and Bekasi River

Abstract The Megacity Jakarta has encountered serious floods associated with high intensity but a short-duration rainfall or low long-duration rainfall. During the rainy season, on 4 Feb 2021, was inundated as increased. However, little is known about meteorological factors that might contribute to this heavy In study, we used 6-min X-Band Doppler radar, one-hour satellite and reanalysis data understand spatial distribution of explore background conditions influence enhanced over Bekasi River. Other than previous studies, found Jakarta, areas receiving are more widespread further northeast ocean an above 4.5 mm h -1 . High starts develop in afternoon inland at around 08-10Z (3.00-5.00 PM). Background condition shows strong westerly wind speed crossing Java Island, initiate development region.