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Abstract:
The cloud-aerosol interaction is important for monsoon studies and the role of cloud condensation nuclei (CCN), giant CCN and ice nuclei (IN) of various species (e.g., mineral dust, soot, bio-aerosols) are important for the cloud ice and mixed-phase cloud formation. To perform a realistic model simulation, one needs to know microphysical processes as well as number concentration of aerosol. The synoptic events and monsoon intraseasonal oscillation (MISO) is an instability arising from feedback between radiation, large-scale dynamics, and convection. For the investigation of those events, we need a sophisticated climate model with state-of-art cloud microphysical scheme, which has fidelity in simulating convection and also have capability of simulation CCN and IN effects. The state-of-art triple moment cloud microphysical parameterization scheme is used to understand the cloud and precipitation for deep convection over Indian subcontinent. The triple moment cloud microphysical scheme can give better deposition growth, terminal velocity of cloud hydrometeors, collision efficiency (riming) and radiation due to inclusion of ice crystal shape as third moment. The in-situ observation will provide an important data for aerosols and cloud microphysics which will help for the development and improvement of state of art cloud microphysical parameterization scheme. The Spectrometer for Ice Nuclei (SPIN) will give the information of ice nuclei (IN) number concentration. The results of new microphysical scheme in modelling studies will help to understand extreme rainfall events, tropical cyclone, depression, thunderstorms and MISO.
