Airborne lidar LEANDRE II for water-vapor profiling in the troposphere. II. First results

被引：40

作者：

Bruneau, D ^{[1
]}

Quaglia, P ^{[1
]}

Flamant, C ^{[1
]}

Pelon, J ^{[1
]}

机构：

[1] Univ Paris 06, CNRS, Serv Aeron, F-75252 Paris 05, France

来源：

APPLIED OPTICS | 2001年 / 40卷 / 21期

关键词：

D O I：

10.1364/AO.40.003462

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The airborne lidar LEANDRE II, described in part I [Appl. Opt. 40, 3450-3461 (2001)], has been flown on the French Atmospheric Research Aircraft to perform lower-troposphere (0-3.5-km) measurements of the water-vapor mixing ratio. We present and discuss the method used for retrieval of the water-vapor mixing ratio and analyze systematic and random measurement errors in relation to instrument design and performance. The results of a series of test flights are presented. With a 0.8-km horizontal resolution and a 300-m vertical resolution, the standard deviation of the measurement error ranges from approximately 0.05 g kg(-1) at 3.5 km to 0.3-0.4 g kg(-1) near the ground, in agreement with the predicted random error. Comparisons with dew-point hygrometer measurements show a vertically averaged difference of +/-0.15 g kg(-1), approximately equal to the observed water-vapor variability. (C) 2001 Optical Society of America.

引用

页码：3462 / 3475

页数：14

共 22 条

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