Cooperative observations of the couplings of the middle and upper atmosphere utilizing lidars-towards the study of turbopause-

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We have clarified various dynamical phenomena in the lower thermosphere using ground-based lidar and radio/optical observations. In order to extend the observation height upward to observe turbopause, we have developed a mobile container lab and equipped with a resonance scatter lidar. This system was moved to Shigaraki MU radar site and observed Ca+layer, in the presence of Es layer. Also, we have developed multi-wavelengths laser for future turbopause observations.