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首页> 外文期刊>Theoretical and applied climatology >A century of apparent atmospheric transmission over Davos, Switzerland
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A century of apparent atmospheric transmission over Davos, Switzerland

机译:一个世纪以来,瑞士达沃斯的明显大气传输

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摘要

Pyrheliometer measurements have been carried out at the Physikalisches-Meteorologisches Observatorium Davos from 1909 to present which results in the longest stationary direct irradiance record worldwide. A variety of different instruments and measurement scales were homogenized and adjusted to the World Radiometric Reference. Following the pyrheliometric ratioing technique, a time-series of apparent atmospheric transmission was calculated and analyzed for possible trends in column transparency over Davos. In order to assess the trend found in the transmission record, the long-term annual cycle in apparent atmospheric transmission was used to deseasonalize the daily transmission data. The trends of early brightening, dimming and brightening were localized and found to be small but highly significant.
机译:自1909年至今,在达沃斯Physikalisches-Meteorologisches天文台进行了高温辐射计的测量,这是世界上最长的固定直接辐照度记录。对各种不同的仪器和测量比例进行了均质化,并根据《世界辐射参考》进行了调整。遵循日射比定量技术,计算了视在大气传输的时间序列,并分析了达沃斯上色谱柱透明度的可能趋势。为了评估在传输记录中发现的趋势,使用了表观大气传输的长期年度周期来淡化每日传输数据。早期变亮,变暗和变亮的趋势是局部的,发现很小但非常显着。

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  • 来源
    《Theoretical and applied climatology》 |2012年第4期|539-547|共9页
  • 作者

    D. Lachat; C. Wehrli;

  • 作者单位

    Physikalisch-Meteorologisches Observatorium Davos, World Radiation Centre (PMOD/WRC), Dorfstrasse 33, 7260 Davos-Dorf, Switzerland,Institute of Geography, University of Bern, Bern, Switzerland,Oeschger Centre for Climate Change Research, Bern, Switzerland;

    Physikalisch-Meteorologisches Observatorium Davos, World Radiation Centre (PMOD/WRC), Dorfstrasse 33, 7260 Davos-Dorf, Switzerland;

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