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13 February 2001 Dustfall and lidar observation in China's desert
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The observation of atmosphere dust in China's desert show that there is a continuous dust layer always existed in lower atmosphere under the height of 5 km. The dust concentration in the layer is changed with altitude and season. According to the Lidar data analysis the backscattering ratio value changes in the range of 2.5-5.5 in clear weather. The higher value ofthe ratio can be extended to the height about the height of3.5 km. The dust concentration is reduced sharply over 3.5 km. In the range of 15-20 km height, an aerosol layer is often observed in Shapotou region. The maximum backscattering ratio usually appears in 1 5- 1 8 km. The value is approximately 1.2.
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Jixia Zhou, Lichao Liu, Yuquan Ling, Haimei Peng, Toshikasu Itabe, Kohei Mizutani, Motoaki Yasui, and Tetsuo Aoki "Dustfall and lidar observation in China's desert", Proc. SPIE 4153, Lidar Remote Sensing for Industry and Environment Monitoring, (13 February 2001);

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