Terahertz Attenuation in Snow and Sleet
Terahertz Attenuation in Snow and Sleet
复制标题
雪和雨夹雪中的太赫兹衰减
DOI：
10.1007/s10762-019-00607-y
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
J. Federici
中科院分区：
文献类型：
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作者：
D. Renaud;J. Federici
利用电磁辐射的米氏理论方法，从理论上研究了积雪和雨夹雪对太赫兹辐射的衰减。指出了雨、雨夹雪和干雪在太赫兹衰减谱上的差异，并着重讨论了用干雪集子测量太赫兹衰减的难度。在较低的太赫兹频率下（~ 0-0.4太赫兹），水蒸气可能是干降雪的主要衰减器。对理论预测和最近的测量结果进行了比较。
The attenuation of terahertz (THz) radiation by snow aggregates and sleet is theoretically investigated using the Mie theory approach for electromagnetic radiation. Differences in attenuation spectra between rain, sleet, and dry snow are identified, and the difficulty of measuring THz attenuation by dry snow aggregates is highlighted and discussed in detail. At lower THz frequencies (~ 0–0.4 THz), it is suggested that water vapor may be the leading attenuator for instances of dry snowfall. A comparison between theoretical predictions and recent measurements is presented.