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13 February 2001 Lidar and Optical Particle Counter (OPC) measurements of polar and tropical stratospheric aerosols
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Lidar and Optical Particle Counter (OPC) measurements were performed in the Canadian Arctic and in the Indonesian Tropical region. The observations yielded very interesting and important results about the features of the latitudinal difference in the stratospheric aerosols. Besides the latitudinal difference, the aerosol distributions and their time variation showed unique characteristics in each of the regions. In Arctic winter, the aerosol concentration varies frequently day-today. In the Tropical region, the aerosol distribution and the vertical transport is, probably, controlled by the variation of the circulation pattern in the lower stratosphere related to the QBO in the tropical stratosphere. Based on the results of the simultaneous measurements by lidar and OPCs, we estimated surface area density, volume density, S-parameter (extinction to backscatter ratio), backscatter to surface area conversion factor, and backscatter to volume conversion factor of the stratospheric aerosols at 20km-altitude in the Arctic and Tropical regions.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Motoaki Yasui, Masahiko Hayashi, Tomohiro Nagai, Takatsugu Matsumura, Kohei Mizutani, Toshikasu Itabe, Osamu Uchino, Toshifumi Fujimoto, Motowo Fujiwara, Takashi Shibata, Sri Kaloka Prabotosari, and Saipul Hamdi "Lidar and Optical Particle Counter (OPC) measurements of polar and tropical stratospheric aerosols", Proc. SPIE 4153, Lidar Remote Sensing for Industry and Environment Monitoring, (13 February 2001);

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