...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied optics >AEROSOL-PROFILE MEASUREMENTS IN THE LOWER TROPOSPHERE WITH FOUR-WAVELENGTH BISTATIC ARGON-ION LIDAR
【24h】

AEROSOL-PROFILE MEASUREMENTS IN THE LOWER TROPOSPHERE WITH FOUR-WAVELENGTH BISTATIC ARGON-ION LIDAR

机译：四波长双稳态氩离子激光器在对流层下部的气溶胶剖面测量

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The scattering properties of aerosols over a tropical urban station, Pune, India, (18 degrees 32' N, 73 degrees 51' E, 559 m above mean sea level), are studied with a bistatic, multiwavelength, continuous-wave, argon-ion lidar. The scattered-intensity profiles (up to 1000 m above ground level) measured at four wavelengths (0.4765, 0.4880, 0.4965, and 0.5145 mu m) of the laser during November 1987-March 1990 revealed certain spectral dependence, in conformity with the Mie theory of aerosol particles. Methods for retrieving the bulk as well as the height variation of aerosol-size distribution from the inversion of angular distribution of scattered-light-intensity measurements from a constant altitude and scattered-intensity vertical-profile measurements at different wavelengths are explained. Results obtained from these approaches are presented and compared with results reported by other investigators. The deviations in the results are discussed in relation to the assumptions involved and the terrain-atmospheric conditions at the experimental station. It is found that the aerosol-size-distribution parameter is altitude dependent beside its dependence on refractive index and wavelength of incident radiation. The results of the study suggest that the information content from bistatic, multiwavelength laser scattering measurements is useful for inferring aerosol-size distribution. [References: 34]
机译：使用双基地，多波长，连续波，氩气-氩气研究了印度浦那一个热带城市站（北纬18度32'北纬73度51'东角，平均海平面以上559 m）上气溶胶的散射特性。离子激光雷达。 1987年11月至1990年3月期间，在四个波长（0.4765、0.4880、0.4965和0.5145μm）的激光下测得的散射强度分布图（最高达地面1000 m）显示出一定的光谱依赖性，这符合Mie理论气溶胶颗粒。解释了从恒定高度的散射光强度测量的角度分布和不同波长的散射强度垂直剖面测量的角度分布反演中获取体积和气溶胶尺寸分布的高度变化的方法。介绍了从这些方法获得的结果，并将其与其他研究人员报告的结果进行了比较。讨论了结果的偏差，涉及的假设与实验台的地形-大气条件有关。发现气溶胶尺寸分布参数除了依赖于入射辐射的折射率和波长以外，还取决于高度。研究结果表明，来自双基地，多波长激光散射测量的信息内容可用于推断气溶胶尺寸分布。 [参考：34]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号