双差分激光雷达——一组可以提高臭氧测量精度的波长  

COMPARISON OF TROPOSPHERIC OZONE MEASUREMENTS BETWEEN THREE-WAVELENGTH DUAL-DIALAND TWO-WAVELENGTH DIAL METHOD

作　　者：胡顺星[1] 胡欢陵[1] 周军[1] 吴永华[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所大气光学重点实验室,合肥230031

出　　处：《气象学报》2002年第4期486-493,共8页Acta Meteorologica Sinica

基　　金：国家 8 63激光技术领域资助课题;国家自然科学基金课题 ( 4 9775 2 5 8)

摘　　要：模拟了气溶胶影响三波长双差分 (2 6 6 - 2 89- 30 8nm)方法和双波长差分 (2 6 6 - 2 89nm和 2 6 6 - 30 8nm)方法测量对流层臭氧的误差 ,并在合肥测量了对流层 2～ 3.6km高度的臭氧分布。结果表明 ,三波长双差分方法比常规的双波长差分方法能更有效地克服气溶胶的影响 ,三波长差分测量的结果比常规的双波长差分的结果更精确。同时还揭示了气溶胶影响双波长差分方法测量臭氧的规律。In this paper the effects of aerosol on tropospheric ozone measurements by three-wavelength(266-289-308 nm) dual differential absorption lidar (DIAL) and two-wavelength(266-289 nm and 266-308 nm) differential absorption lidar are simulated and ozone profiles from 2 to 3.6 km altitude at Hefei are measured. Results show that the the three-wavelength dual-DIAL method is more effective to reduce the effects of aerosol than the two-wavelength DIAL method, and more accurate ozone density can be obtained by the three-wavelength dual-DIAL method. In the meantime, the laws of aerosol effects are foumd on DIAL measurements in tropospheric ozone. Measurement results show great agreement with simulation conclusions.

关 键 词：双差分激光雷达 测量精度 双波长差分 三波长双差分 气溶胶 臭氧 

分 类 号：P421[天文地球—大气科学及气象学]