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http://dx.doi.org/10.7780/kjrs.2012.28.1.001

Instantaneous Monitoring of Pollen Distribution in the Atmosphere by Surface-based Lidar  

Noh, Young-Min (Department of Environmental Science & Engineering, Gwangju Institute of Science & Technology)
Mueller, Detlef (Department of Environmental Science & Engineering, Gwangju Institute of Science & Technology)
Lee, Kwon-Ho (Department of Satellite Geoinformatics Engineering, Kyungil University)
Choi, Young-Jean (Applied Meteorology Research Lab. National Institute of Meteorological Research)
Kim, Kyu-Rang (Applied Meteorology Research Lab. National Institute of Meteorological Research)
Lee, Han-Lim (Department of Atmospheric Sciences, Yonsei University)
Choi, Tae-Jin (Korea Polar Research Institute)
Publication Information
Korean Journal of Remote Sensing / v.28, no.1, 2012 , pp. 1-9 More about this Journal
Abstract
The diurnal variation in pollen vertical distributions in the atmosphere was observed by a surface-based lidar remote sensing technique. Aerosol extinction coefficient and depolarization ratio at 532 nm were obtained from lidar measurements in spring ($4^{th}$ May - $2^{nd}$ June) 2009 at Gwangju Institute of Science & Technology (GIST) located in Gwangju, Korea ($35.15^{\circ}E$, $126.53^{\circ}N$). Unusual variations of depolarization ratio were observed for six days from $4^{th}$ to $9^{th}$ May. Depolarization ratios varied from 0.08 to 0.14 were detected at the low altitude in the morning. The altitude with those high depolarization ratios was increased up to 1.5 - 2.0 km at the time interval between 12:00 and 14:00 LT and then decreased. The temporal variations in high values of depolarization ratios from lidar measurements show good agreement in patterns with the sampled pollen concentrations measured using the Burkard trap sampler. This study demonstrates that the pollen distribution data obtained by lidar measurements can be a useful tool for investigating spatial and temporal characteristic of pollen particles.
Keywords
Pollen; Lidar; Depolarization ratio;
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Times Cited By KSCI : 1  (Citation Analysis)
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