13 February 2001 Lidar and Optical Particle Counter (OPC) measurements of polar and tropical stratospheric aerosols
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Abstract
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.
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Motoaki Yasui, Motoaki Yasui, Masahiko Hayashi, Masahiko Hayashi, Tomohiro Nagai, Tomohiro Nagai, Takatsugu Matsumura, Takatsugu Matsumura, Kohei Mizutani, Kohei Mizutani, Toshikasu Itabe, Toshikasu Itabe, Osamu Uchino, Osamu Uchino, Toshifumi Fujimoto, Toshifumi Fujimoto, Motowo Fujiwara, Motowo Fujiwara, Takashi Shibata, Takashi Shibata, Sri Kaloka Prabotosari, Sri Kaloka Prabotosari, Saipul Hamdi, 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); doi: 10.1117/12.417083; https://doi.org/10.1117/12.417083
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