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首页> 外文学位 >Use of the selected overlap LIDAR experiment (SOLEX) system with the 248 nm krypton fluoride and the 355 nm neodymium:yttrium aluminum garnet lasers for the calibration of LIDAR systems for water vapor determination.
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Use of the selected overlap LIDAR experiment (SOLEX) system with the 248 nm krypton fluoride and the 355 nm neodymium:yttrium aluminum garnet lasers for the calibration of LIDAR systems for water vapor determination.

机译：将选定的重叠LIDAR实验（SOLEX）系统与248 nm氟化rypto和355 nm钕：钇铝石榴石激光器一起用于水蒸气测定的LIDAR系统的校准。

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摘要

Water vapor is one of the most important atmospheric variables that play a key role in air quality, global warming, climate change and hurricane formation. In this dissertation, use was made of two laser systems, the 248-nm KrF laser and the 355 nm Nd-YAG laser, with the use of Raman scattering to measure water vapor in the atmosphere. These two systems have been calibrated more accurately, using the LIDAR approach named SOLEX (Selected Overlap LIDAR Experiment). All the experiments were carried out at the Howard University Beltsville campus located on a 107 acre research site, at Beltsville, MD, 15 miles from downtown Washington DC, near the National Agricultural Research Center (NARC), and the NASA Goddard Space Flight Center (GSFC). The geographical coordinates are: 39°04.01'N latitude, and 76°52.31'W longitude. The receiver system used during these experiments is a 30" (76.2 cm), f/9 Cassegranian telescope, while the detector system uses a prism spectrometer (Beckman), with a 2-meter, double-fold optical path and a variable slit width is placed at the image plane of the telescope. With the use of the SOLEX system, this dissertation provides an accurate calibration of the two LIDAR Systems for water vapor measurement in the troposphere at the following ranges: 83.7 ft, 600 ft, 800 ft, 1000 ft and 1080 ft. Data analysis shows a pretty high sensitivity of the LIDAR system for water vapor measurement and the efficiency of the SOLEX method.
机译：水蒸气是最重要的大气变量之一，在空气质量，全球变暖，气候变化和飓风形成中起着关键作用。本文利用拉曼散射法测量大气中的水蒸气，采用了两种激光系统：248nm KrF激光器和355nm Nd-YAG激光器。使用名为SOLEX的LIDAR方法（选定的重叠LIDAR实验），可以更准确地校准这两个系统。所有实验均在霍华德大学贝尔茨维尔分校校园内进行，该校区占地107英亩，位于马里兰州贝尔茨维尔，距离华盛顿市中心15英里，靠近国家农业研究中心（NARC），以及美国宇航局戈达德太空飞行中心（ GSFC）。地理坐标为：北纬39°04.01'，东经76°52.31'。在这些实验中使用的接收器系统是30英寸（76.2厘米）f / 9卡塞格伦望远镜，而检测器系统则使用棱镜光谱仪（贝克曼），该光谱仪具有2米的双倍光学路径和可变的狭缝宽度通过使用SOLEX系统，本论文可对以下两个对流层水汽测量的激光雷达系统进行精确校准：83.7英尺，600英尺，800英尺， 1000英尺和1080英尺。数据分析显示LIDAR系统对水蒸气测量的灵敏度很高，并且SOLEX方法的效率很高。

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  • 作者

    Mensah, Francis Emmanuel Tofodji.;

  • 作者单位

    Howard University.;

  • 授予单位 Howard University.;
  • 学科 Physics Astronomy and Astrophysics.;Physics Optics.
  • 学位 Ph.D.
  • 年度 2007
  • 页码 127 p.
  • 总页数 127
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 天文学;光学;
  • 关键词

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