Bistatic Imaging Lidar Measurements in the Lower Atmosphere

In order to measure spatial distributions of aerosol, fog and clouds in the lower atmosphere during daytime as well as nighttime, we have been developing a bistatic imaging lidar using a high sensitivity cooled CCD camera with an image intensifier as a high speed shutter. We made two field observational campaigns. One made cooperatively with a wind profiler and a radiosonde at Moriya (36 km north of Tokyo) for 5 days from May 26 to 30, 1997 and another cooperatively with a monostatic lidar at Hakuba alpine ski area of Nagano for 10 days from February 7 to 16, 1998 during the period of the 18th winter Olympic Games in Japan. In this paper we report the results obtained at both campaigns and demonstrate the unique capabilitiesof the bistatic imaging lidar in measuring meteorological features of the lower atmosphere under different local conditions.