Lidar calibration technique using laboratory-generated aerosols

被引:17
作者
Jarzembski, MA
Srivastava, V
Chambers, DM
机构
[1] UNIV SPACE RES ASSOC,GLOBAL HYDROL & CLIMATE CTR,INST GLOBAL CHANGE RES & EDUC,HUNTSVILLE,AL 35806
[2] MICROCRAFT INC,HUNTSVILLE,AL 35806
来源
APPLIED OPTICS | 1996年 / 35卷 / 12期
关键词
lidar; coherent detection; backscatter;
D O I
10.1364/AO.35.002096
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A new calibration technique for continuous-wave Doppler lidars that uses an aerosol scattering target has been developed. Calibrations with both single- and many-particle scattering were performed at the same lidar operating conditions as in atmospheric measurements. The calibrating targets, simulating atmospheric aerosols, were laboratory-generated spherical silicone oil droplets with known complex refractive indices and sizes, hence with known single-particle backscatter cross sections as obtained from Mie theory. Measurements of lidar efficiency with the conventional hard target calibration method were consistently higher by a factor of similar to 2 than measurements with the aerosol calibration technique. This result may have important implications for lidar backscatter estimates both for aerosol modeling efforts and for optimal design of future lidar systems. The aerosol calibration method provides a validation of basic lidar theory for particle scattering for coherent detection. (C) 1996 Optical Society of America
引用
收藏
页码:2096 / 2108
页数:13
相关论文
共 31 条
[1]   CALIBRATION OF THE REFLECTANCE OF HARD TARGETS FOR A COHERENT DOPPLER LIDAR [J].
ANDERSON, R ;
BILBRO, JW .
APPLIED OPTICS, 1988, 27 (05) :856-861
[2]  
BAKER WE, 1995, B AM METEOROL SOC, V76, P869, DOI 10.1175/1520-0477(1995)076<0869:LMWFSA>2.0.CO
[3]  
2
[4]  
BEVINGTON PR, 1969, DATA REDUCTION ERROR, P187
[5]   AIRBORNE DOPPLER LIDAR MEASUREMENTS [J].
BILBRO, JW ;
DIMARZIO, C ;
FITZJARRALD, D ;
JOHNSON, S ;
JONES, W .
APPLIED OPTICS, 1986, 25 (21) :3952-3960
[6]   AEROSOL BACKSCATTER MEASUREMENTS AT 10.6 MICROMETERS WITH AIRBORNE AND GROUND-BASED CO2 DOPPLER LIDARS OVER THE COLORADO HIGH-PLAINS .1. LIDAR INTERCOMPARISON [J].
BOWDLE, DA ;
ROTHERMEL, J ;
VAUGHAN, JM ;
BROWN, DW ;
POST, MJ .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1991, 96 (D3) :5327-5335
[7]   AEROSOL BACKSCATTER MEASUREMENTS AT 10.6 MICROMETERS WITH AIRBORNE AND GROUND-BASED CO2 DOPPLER LIDARS OVER THE COLORADO HIGH-PLAINS .2. BACKSCATTER STRUCTURE [J].
BOWDLE, DA ;
ROTHERMEL, J ;
VAUGHAN, JM ;
POST, MJ .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1991, 96 (D3) :5337-5344
[8]  
CUTTEN DR, IN PRESS J GEOPHYS R
[9]   PRECISE COMPARISON OF EXPERIMENTAL AND THEORETICAL SNRS IN CO2-LASER HETERODYNE SYSTEMS [J].
FOORD, R ;
JONES, R ;
VAUGHAN, JM ;
WILLETTS, DV .
APPLIED OPTICS, 1983, 22 (23) :3787-3795
[10]   COHERENT LASER-RADAR PERFORMANCE FOR GENERAL ATMOSPHERIC REFRACTIVE TURBULENCE [J].
FREHLICH, RG ;
KAVAYA, MJ .
APPLIED OPTICS, 1991, 30 (36) :5325-5352