Raman lidar profiling of atmospheric water vapor

Conference Proceedings Second Topical Symposium on Combined Optical-Microwave Earth and Atmosphere Sensing Pub Date : 1995-04-03 DOI:10.1109/COMEAS.1995.472323

J. Goldsmith, S. Bisson

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引用次数: 3

Abstract

The authors describe two Raman lidar systems that they are developing for the measurement of atmospheric humidity. One, which has been under development for several years, is used for their own studies at Sandia. The Sandia lidar system is housed in two mobile semitrailers, one trailer serving as a mobile laboratory and the other as a support vehicle providing a data acquisition/analysis area. The lidar uses an injection-seeded excimer laser to provide a beam with reduced divergence and spectral bandwidth, operated at 308 nm during both nighttime and daytime. Enhanced dynamic range, for daytime operation in particular, is provided by using photon counting in the narrow field-of-view channel, and analog to digital conversion in the wide field-of-view channel. The second Raman lidar system under development will have a permanent residence at the Department of Energy's ARM (Atmospheric Radiation Measurement program) CART (Cloud and Radiation Testbed) site near Lament, Oklahoma. This system is based on a high-power 355-nm laser beam produced by a frequency-tripled Nd:YAG laser.<>

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大气水汽的拉曼激光雷达剖面

作者描述了他们正在开发的用于测量大气湿度的两种拉曼激光雷达系统。其中一个已经开发了好几年，用于他们自己在桑迪亚的研究。桑迪亚激光雷达系统安装在两辆移动半挂车中，一辆拖车作为移动实验室，另一辆作为支持车辆，提供数据采集/分析区域。激光雷达使用注入种子准分子激光器，提供发散度和光谱带宽较低的光束，在夜间和白天均可工作在308 nm。增强的动态范围，特别是白天操作，是通过在窄视场通道中使用光子计数和在宽视场通道中使用模拟到数字转换来提供的。正在开发的第二个拉曼激光雷达系统将在俄克拉何马州Lament附近的能源部大气辐射测量计划(ARM) CART(云和辐射试验台)站点永久驻留。该系统基于三倍频Nd:YAG激光器产生的高功率355 nm激光束。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Conference Proceedings Second Topical Symposium on Combined Optical-Microwave Earth and Atmosphere Sensing

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