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Proceedings Paper

Detection of organized airflow in the atmospheric boundary layer and the free atmosphere using a 3D-scanning coherent Doppler lidar
Author(s): Y. Fujiyoshi; K. Yamashita; C. Fujiwara
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Paper Abstract

We will overview organized airflows, turbulent and laminar structures in the atmospheric boundary layer and the free atmosphere newly detected by a 3D-scanning coherent Doppler lidar system (3D-CDL). Study of clouds becomes important especially in recent years, since they play an essential role in global climate systems and the earth environment. The aerosol-cloud interaction is not enough to evaluate aerosol indirect effect. Air-motion is the key factor that connects aerosols and clouds especially in the atmospheric boundary layer. Using the 3D-CDL, we detected such various kinds of atmospheric phenomena as plume, streaks, invisible dust-devils, fog, fire-work, local front, downburst, wake of buildings, gravity waves, Kelvin-Helmholtz instability waves, sea-breeze fronts, fine-weather cumulus, low-level stratus, mid-level clouds, mammatus clouds and cirrus clouds etc. Some of these phenomena are firstly observed by the 3D-CDL. We simulated some phenomena by using a Large Eddy Simulation (LES) model and compared the simulated structures with those observed by the 3D-CDL.

Paper Details

Date Published: 28 August 2009
PDF: 10 pages
Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 738204 (28 August 2009); doi: 10.1117/12.835943
Show Author Affiliations
Y. Fujiyoshi, Hokkaido Univ. (Japan)
K. Yamashita, Hokkaido Univ. (Japan)
C. Fujiwara, Hokkaido Univ. (Japan)


Published in SPIE Proceedings Vol. 7382:
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Farzin Amzajerdian; Chun-qing Gao; Tian-yu Xie, Editor(s)

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