High Thermal and Interaction with Convective Cloud Based from Boundary Layer Radar, Himawari-8 and Time Lapse Camera Observation (Case Study: 11 September 2018)

Abstract

Multiple observation to observe cloud microphysics are conducted in one of location in Kobe urban area of Japan. From Boundary Layer Radar observation capture a high thermal with its updraft properties with its height is already reaching above boundary layer height. In this period of high thermal, temperature observation from two nearest AWS showed increase of temperature value. Himawari-8 satellite and Time lapse camera capture convective cumulus cloud moving towards the thermal location in the same period. In order to analyze whether there is any effect of this high thermal towards the cumulus cloud, wavelet coherency is used. The result showed that the higher part of the thermal has the same pattern (in-phase) with the cloud albedo. High thermal seems to affect the cloud condition based on the cloud image especially in the period where the thermal reach its maximum updraft value.