Development of Direct-Detection Doppler Wind Lidar for Vertical Atmospheric Motion Shoken Ishii, Makoto Aoki, Kanna Tominaga, Tomoaki Nishizawa, Yoshitaka Jin, Nobuo Sugimoto, Yasukuni Shibata, Atsushi Sato, Kaori Sato and Hajime Okamoto EPJ Web Conf., 237 (2020) 06006 Published online: 07 July 2020 DOI: 10.1051/epjconf/202023706006