SUZUKI Hidehiko
   Department   Undergraduate School  , School of Science and Technology
   Position   Associate Professor
Research Period 2012/04~2016/03
Research Topic Chemistry and transport at the bottom of the upper atmosphere using novel lidar observations
Research Type KAKENHI Research
Consignor Japan Society for the Promotion of Science
Research Program Type Grant-in-Aid for Scientific Research (B)
KAKENHI Grant No. 24340121
Representative Person NAKAMURA Takuji
Collaborative Researcher MIYOSHI Yasunobu, TSUTSUMI Masaki, TANAKA Yoshimasa, WATANABE Junichi
Details A high-performance laser has been applied to develop a resonance scatter lidar for observations of the bottom part of the upper atmosphere around 100 km height in order to clarify on the transport and constituent variations which are closely related to the chemical processes there. The observations at mid-latitude in the northern hemisphere and in the Antarctic have been carried out together with novel observations by large aperture atmospheric radar and airglow imaging etc. The selected topics achieved are as follows. High altitude sodium atom layer has been found in the thermosphere. Meteor orbits, meteor flux and effects on the atmosphere have been estimated. Development of calcium ion layer by a lidar, which is comparable to the ultra large aperture radar observation of the ionosphere, and its observation have clarified vertical couplings.