CONVECTIVE CLOUD DEVELOPMENT STAGE ANALYSIS BY X-BAND METEOROLOGICAL RADAR IN BADUNG BASIN

• Main Author: AMELIA SYARASWATI - NIM: 12814001 , RIMA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/30498
• Institution: Institut Teknologi Bandung

<p align="justify">Complex topography in the Bandung basin will affect the convective activity that occurs at that area. The initial, mature, and dissipation stage changes in a convective cloud development have a short period of time so that the development stage analysis is needed by using data that has a high temporal resolution. <br /> <br /> <br /> <br /> <br /> This study uses CAPPI-V and CAPPI-Z products from X-Band meteorological radar in April 2017 with a resolution of 10 minutes to be able to analyze the development stages of convective clouds in more detailed. The day that have a strong convective system with indications of heavy rain events was chosen. Then the definition of pixels was carried out to determine the radial and radial velocity values of X-Band radars in identifying convergence events and characteristics of convective cloud development stages. <br /> <br /> <br /> <br /> <br /> The results of the synoptic pattern analysis show that rainfall events are caused by vertical convective clouds above the Bandung Basin. The initial stage of convective clouds begins with convergence at afternoon and 10 minutes before the rainfall. The increased value of reflectivity after 10 minutes after convergence indicates the development and maturation stage. While the dissipation stage is a decrease in radar reflectivity during afternoon to evening. There is a new initiation next to the cloud that is in the dissipation stage and then joins to develops in a short time for about 30 minutes. Statistical analysis during April shows the frequency of development and dissipation has a range of 10-30 minutes with convective initiations tend to occur in the north, south, and the plains of the Bandung Basin. <p align="justify"> <br /> <br />