A portable imaging lidar for lower boundary layer atmospheric measurement

摘要

A portable imaging lidar using continuous wave(CW) laser is built for the remote sensing of aerosol in lower boundary layer. The output beam from a simple, stable powered CW laser no modulated is transmitted into the atmosphere, and backscattered light from along the visible beam path is imaged onto a charge-coupled-device(CCD) camera. It can be used to scan atmosphere from different angles. The horizontal measurements are obtained and compared with those obtained by the America Belfort model 6230A visibility meter. The horizontal results show that the average relative error is below 20%. The temporal-spatial variations of aerosol profiles in low boundary layer are presented and discuss.