Performance improvement of long-range scanning Mie lidar for the retrieval of atmospheric extinction

被引：18

作者：

Gao, F. ^{[1
,2
]}

Veberic, D. ^{[2
]}

Stanic, S. ^{[2
]}

Bergant, K. ^{[2
]}

Hua, D-X. ^{[1
]}

机构：

[1] Xian Univ Technol, Xian, Peoples R China

[2] Univ Nova Gorica, Nova Gorica, Slovenia

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2013年 / 122卷

基金：

中国国家自然科学基金;

关键词：

Long-range scanning Mie lidar; Data gluing; Offset of laser beam direction; Atmospheric extinction; SIMULTANEOUS ANALOG; RAMAN LIDAR; RETURNS;

D O I：

10.1016/j.jqsrt.2012.11.027

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

To improve the detection range and signal to noise ratio in the remote sensing of atmospheric processes using long-range scanning Mie lidar, simultaneously obtained analog (A) and photon-counting (P) data traces were merged using a novel gluing method based on the modification of the A trace so that it follows Poisson statistics. In comparison with the traditional method based on the minimization of the distance between A and P, the advantage of this new approach is an improved uniformity of the merged data trace as well as a reduced influence of atmospheric conditions on the obtained transfer coefficients. The atmospheric extinction was subsequently retrieved using the two- and multi-angle method. The offset of the laser beam direction was calibrated against a self-leveling laser, as an offset in elevation angle was found to produce considerable error in the atmospheric extinction profiles obtained under the assumption of horizontal atmospheric homogeneity. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：72 / 78

页数：7

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