Development of Direct-Detection Doppler Wind Lidar for Vertical Atmospheric MotionShoken Ishii, Makoto Aoki, Kanna Tominaga, Tomoaki Nishizawa, Yoshitaka Jin, Nobuo Sugimoto, Yasukuni Shibata, Atsushi Sato, Kaori Sato and Hajime OkamotoEPJ Web Conf., 237 (2020) 06006DOI: https://doi.org/10.1051/epjconf/202023706006