The cloud microphysical and dynamical processes in monsoon clouds and the role of aerosols in modifying these cloud characteristics in both direct effect through the scattering and absorption of radiation and indirect effect by modifying the cloud macrophysical, microphysical and rainfall processes are least understood. Cloud processes introduce subgrid scale processes that need to be parameterized. Various types of observations such as in situ and remote sensing observations of clouds and their associated interactions with the environment are invaluable in designing parameterization schemes or improving the representation of processes in the numerical models. Meanwhile, the aerosol and cloud processes are closely linked with the atmospheric dynamics at various scales. The convective mixing between the lower and middle troposphere explains the major contributions to the variance in the climate sensitivity in several climate models.
The controls on the cloud formation, organization, decay in the monsoon convection is a multiscale problem and needs multi faceted approach from the satellite, ground based, in situ airborne observational efforts and laboratory and numerical studies to understand the multiscale physics and dynamics of clouds.
PDTC scientific objectives are in collecting valuable observations under Cloud Aerosol Interaction and Precipitation Enhancement Experiment (CAIPEEX) in campaign mode airborne and integrated ground based observations and for extended period of time at High Altitude Cloud Physics Laboratory (HACPL). These coordinated integrated observations are designed to address direct and indirect effect of aerosols on weather and climate, the impact of aerosols on the hydrological cycle, investigating cloud micro scale and macro scale characteristics, thermodynamic state of the atmosphere and numerical simulations
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Last Updated On 04/15/2015 - 11:31