Project for Aerosol and Cloud Formation

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Interdisciplinary collaborative research project:
"Cloud and aerosol formation"

Cloud and precipitation particles are closely related with aerosol particles in the atmosphere. They are large uncertainties in the radiation budget of the earth. Cloud and precipitate processes have been studied in different groups. In the present interdisciplinary collaborative research project, nucleation of aerosols and clouds, formation of precipitation, time and space variation of clouds and aerosols, and interaction of cloud-aerosol process with radiation are studied by laboratory experiments, field observations and numerical modeling in corporation with cloud and aerosol groups. On the basis of laboratory experiments and field observations, aerosol processes will be implemented in the cloud-resolving model. Using the model, simulation experiments and prediction of clouds and aerosols are performed (Fig. 1). In cooperation with Center for Orbital and Suborbital Observations, in situ observations of cloud and aerosol particles in precipitation systems are performed using an aircraft and cloud particle sondes (Fig. 2). In cooperation with another project, Project for Solar-Terrestrial Climate Research, aerosol nucleation due to cosmic ray is examined by a laboratory experiment and simulation experiments of cloud and aerosol processes including the cosmic ray process are performed (Fig. 3).

With Implementation of aerosol processes into the cloud-resolving model, detailed simulation experiments of clouds and precipitation systems are performed

Fig. 1: With Implementation of aerosol processes into the cloud-resolving model, detailed simulation experiments of clouds and precipitation systems are performed. Using balloon observation with microscope, simulation results will be examined to improve the model.

In cooperation with Center for Orbital and Suborbital Research, in situ observations are performed using an aircraft and cloud particle sondes. Simulations of cloud and aerosol processes are performed.

Fig. 2: In cooperation with Center for Orbital and Suborbital Observations, in situ observations are performed using an aircraft and cloud particle sondes.

Fig. 3: Simulations of cloud and aerosol processes are performed. Aerosol production by cosmic ray and its impact on condensation cloud nuclei are studied.

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