• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Pure and Applied Geophysics >Total Atmospheric Transmittance in the UV and VIS Spectra in Athens, Greece
【24h】

Total Atmospheric Transmittance in the UV and VIS Spectra in Athens, Greece

机译：希腊雅典的UV和VIS光谱中的总大气透射率

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

This work investigates the seasonal and diurnal variation of total spectral transmittance of solar radiation. Such a study dealing with ultraviolet and visible wavelengths (310–575 nm) is carried out in Athens for the first time. The spectral values presented are averages over a number of records in a period of 42 days and have been calculated using ground-based spectral measurements of direct-beam irradiance. The data were recorded on selected days throughout a year by a simple pyrheliometer capable of performing spectral measurements. All data were recorded under clear-sky conditions in the city center of Athens and the total spectral atmospheric transmittance was estimated in the direction of local zenith to become independent of any optical mass effects. The comparison between seasons reveals that the atmospheric transmittance is higher in the cold period of the year than in the warm, simply because the photochemical pollution in the summer is more severe. Various features of seasonal and diurnal variation are also discussed with respect to emission sources, topographic peculiarities and wind regime.
机译：这项工作调查了太阳辐射总光谱透射率的季节性和昼夜变化。这项关于紫外线和可见光波长（310-575 nm）的研究首次在雅典进行。给出的光谱值是42天内一段时间内多个记录的平均值，并且已使用基于直接光束辐照度的地面光谱测量值进行了计算。在一年中的特定日期，通过能够进行光谱测量的简单日射强度计记录数据。所有数据均在雅典市中心晴空条件下记录，并且总光谱大气透射率在局部天顶方向上估计为独立于任何光学质量效应。季节之间的比较表明，一年中的寒冷时期大气透射率高于温暖时期，这仅仅是因为夏季的光化学污染更为严重。还就排放源，地形特点和风况讨论了季节性和昼夜变化的各种特征。

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