4. Summary
The present study is focused on the structure of pre-monsoon convective systems over a tropical coastal region in southern peninsular India. Observations from several instruments such as Doppler weather radar (DWR), disdrometer, ceilometer, INSAT-3DR satellite data, radiosonde measurements are used in the study. Using the quality controlled DWR data, 11 convective events have been identified by inspecting the reflectivity field from DWR. Out of which, the convective events occurred on 13th May and 25th May 2018 has been analysed in detail to understand the development of mesoscale cloud systems. Convective-stratiform separation has been done for all the events. Following are the major conclusions of the study.
It would be worth studying the observed lightning activity (if any) during these events as presence of vertical ice indicates toward development of electric field. If major lightning activity occurred during these events, then it would support the collision charging mechanism as graupels are identified within the convective core regions.