Chinese Optics Letters, 2010, 8 (6): 541, Published Online: Jun. 22, 2010
Convenient method for calibrating system constant of scanning water vapor Raman lidar Download: 939次
大气光学 激光雷达 大气散射 水汽探测 010.1290 Atmospheric optics 010.3640 Lidar 280.1310 Atmospheric scattering 280.3640 Lidar
Abstract
Lower tropospheric water vapor measurements are performed at nighttime using the mobile atmosphere monitoring lidar-2 (AML-2) which is operated by the Anhui Institute of Optics and Fine Mechanics. In this lidar system, a 354.7-nm light from a Nd:YAG laser is used as stimulating source, whose Raman shifted center wavelengths are at 386.7 and 407.5 nm for nitrogen and water vapor, respectively. We present a novel and convenient method for determining the Raman lidar calibration constant according to the scanning performance of this lidar. We are likewise able to realize the measurement of water vapor profile in the low troposphere. The error induced by the uncertainty of calibrated constants is within 7% for the Raman lidar system. Experimental results from two months of study indicate that the method of calibrating the lidar system constant is feasible, and the Raman lidar performance is stable and reliable.
Peitao Zhao, Yinchao Zhang, Wei Li, Shunxing Hu, Kaifa Cao, Shaolin Wang, Huanling Hu. Convenient method for calibrating system constant of scanning water vapor Raman lidar[J]. Chinese Optics Letters, 2010, 8(6): 541.