Development of lidar systems for measuring basic meteorological parameters to analyze dynamical properties of the atmospheric environment

开发用于测量基本气象参数以分析大气环境动态特性的激光雷达系统

• 批准号: 07558195
• 负责人: KOBAYASHI Takao
• 金额: $ 2.3万
• 依托单位: FUKUI UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07558195/
• 关键词: Doppler lidar; Rayleigh lidar; high-spectral resolution,; wind; temperature; humidity; eye-safety; UV laser; ライダー; レーザーレーダー; インコヒーレントドップラー; レイリー散乱; リモートセンシング; レーリー散乱

In recent years, various atmospheric environmnental issues have appeared and some new remote sensors are needed for analyzing in real-time multiple physical parameters of the atmosphere. The purpose of the research is to develop a lidar (laser radar) system for measuring remotely three basic atmospheric parameters, wind velocity, temperature and humidity and to realize as sensing method of dynamical properties of the atmosphere.The main results are as follows ; 1) For the wind measurement, a new type of differential discrimination scheme of the Doppelr lidar was proposed and experimentally tested by developing a lidar system using a Mach-Zhender and a Fabry-Perot etalon as the high spectral resolution filter. The velocity resolution was less than 1 m/s up to 3 km range. 2) For the temperature measurement, the Rayleigh scattering lidar scheme was analyzed in detail. The UV lidar was designed using a Fabry-Perot etalon and tested. The resolution was about 10 K at 5 km range in the atmosphere. 3) Water vapor was measured based on the vibrational Raman scattering scheme and absolute humidity was obtained up to 3 km height. 4) Design principle and the systems of compact laser-diode pumped solid-state lasers and tunable optical parametric oscillators were developed for the use in practical lidars.From these results, it was verified that three key meteorological parameters are measured simultaneously by the high-spectral resolution lidar system using an UV laser.

近年来，各种大气物理问题的出现，需要一些新的遥感器来实时分析大气的多个物理参数。本课题的研究目的是研制一台激光雷达（激光雷达）系统，实现了对风速、温度和湿度三个基本大气参数的遥测，并实现了对大气动力学特性的传感。1）对于测风，提出了一种新的多普勒激光雷达差分鉴别方案，并通过研制马赫数激光雷达系统进行了实验验证，Zhender和Fabry-Perot标准具作为高光谱分辨率滤光片。速度分辨率在3公里范围内小于1米/秒。2)对于温度测量，详细分析了瑞利散射激光雷达方案。紫外激光雷达的设计使用法布里-珀罗标准具和测试。在大气层中5公里范围内，分辨率约为10 K。3)基于振动拉曼散射方案测量水蒸气，并获得高达3 km高度的绝对湿度。4)介绍了小型激光二极管泵浦固体激光器和可调谐光学参量振荡器的设计原理和系统结构，并将其应用于实际激光雷达，验证了紫外激光高光谱分辨率激光雷达系统能够同时测量三个关键气象参数。

项目成果

T.Kobayashi, N.Sugimota, I.Matui, S.Murata, M.Pinandito, M.Syamsudin: ""Development of a lidar network system for monitoring atmospheric environment in Jakaruta City"" Abstracts of Pacific Rim Conf.on Lasers and Electro-Optics, ThP4. (1997)

T.Kobayashi、N.Sugimota、I.Matui、S.Murata、M.Pinandito、M.Syamsudin：““开发用于监测雅卡鲁塔市大气环境的激光雷达网络系统””环太平洋激光和会议摘要

Z.Liu: "Differential discrimination technique for incoherent Doppler lidar for measuring atmospheric wind and packscatter ratio" Optical Review. 3.,1. 47-52 (1996)

Z.Liu：“用于测量大气风和包散射比的非相干多普勒激光雷达的差分鉴别技术”光学评论。

小林 高郎 (編著): "固体レーザー" 学会出版センター, 266 (1997)

小林隆夫（编辑）：《固体激光》学会出版中心，266（1997）

T.Taira, T.Suzudo, M.Furuhat, T.Kobayashi: ""Single-mode Q-switched and frequency doubled Nd : YVO_4 miniature lasers"" Abstracts of Conferece on Lasers and Electro-Optics (CLEO '96). CWF2. 272 (1996)

T.Taira、T.Suzudo、M.Furuhat、T.Kobayashi：“单模 Q 开关和倍频 Nd : YVO_4 微型激光器””激光和电光会议摘要 (CLEO 96)。

T.Kobayashi, D.Hua, T.Murae, R.Tanaka: ""Multi-channal Doppleylidar for remote sensing of fropospheric wind"" Abstracts of 19th International Laser Radar Conference. (in press).

T.Kobayashi、D.Hua、T.Murae、R.Tanaka：“用于平流层风遥感的多通道多普雷激光雷达”第 19 届国际激光雷达会议摘要。