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Winds, waves and turbulence are ubiquitous in the earth atmosphere-ionosphere system. They represent dynamics and energetics of the system and also carry material, energy and momentum from one region to the other both horizontally and vertically, affecting the atmosphere-ionosphere system both in local and non-local sense. In fact, some of the important atmospheric/ionospheric phenomena are due to their dynamical coupling with the background neutral and plasma environment. This talk will address a few intriguing aspects, namely the role of turbulence in the cloud-to-rain pathway, and coupling effects of the upward propagating tides and gravity waves of lower atmospheric origin on the mesospheric and near-earth plasma processes. Specifically, this talk will provide recent ground-based and space-borne observational findings and new insight on the physical understanding that have emerged so far. The talk will also summarize the challenging science questions and the possible pathways to address them. |