Investigation of the diurnal pattern of the vertical distribution of pollen in the lower troposphere using LIDAR

Abstract

The diurnal pattern of the vertical distribution of biogenic pollen in the lower troposphere was investigated by LIDAR in spring (4 May - 2 June) 2009, Gwangju, Korea. During the measurement period, the daily variations of the high depolarization ratios close to the surface showed correlation to number concentration measurements of pollen. This finding suggests that high depolarization ratios could be attributed to enhanced pollen concentrations. The diurnal characteristics of the high values of depolarization ratios are thought to be closely associated with turbulent transport. Diurnal and vertical characteristics of pollen, if measured continuously, could be used to improve the accuracy of pollen-forecasting models via data assimilation studies. (쇄빙연구선 탑재 라이다의 쇄빙연구선 탑재 전 광주과기원에서의 비교 실험을 위해 운영된 기간 동안의 연구결과임)