ATMOSPHERE DYNAMICS ANALYSIS AND CONVECTIVE CLOUD DISTRIBUTION USING RED GREEN BLUE (RGB) TECHNIQUES IN HIMAWARI-8 SATELLITE IMAGE: CASE STUDY OF THE JAKARTA FLOOD 30 DECEMBER 2019 - 1 JANUARY 2020
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Published: Apr 16, 2021 |
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Keywords: Banjir, Himawari-8, Hujan Ekstrem, RGB |
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Abstract
The extreme rains that hit the Jakarta area from December 31, 2019, to January 1, 2020, causing several places in Jakarta submerged in floods. Based on daily rainfall measurements as measured on January 1, 2020, the highest rainfall was 377 mm at Halim Perdana Kusuma Air Force Base. Analysis of this incident using the RGB (Red Green Blue) technique on the Himawari-8 satellite image. The RGB schematic diagrams that support this research are the 24-Hours Microphysics, Day Microphysics, Night Microphysics, Air Mass, and Day Convective Storms schemes. The analysis results of the time series cloud top temperature showed that the cloud growth that caused heavy rain started at 08.00 JLT then the rain begins to hit the Jakarta area around 09.15 JLT. From the RGB scheme, it's known to exist that there are warm air masses in the Jakarta area that trigger the growth of Cumulonimbus clouds. The purpose of this research is to know about atmospheric dynamics and convective cloud distribution during a flood in Jakarta on 31 December 2019 - 1 January 2020
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