Relations between the Character of Atmospherics and Their Place of Origin
Relations between the Character of Atmospherics and Their Place of Origin
复制标题
大气特征与其起源地之间的关系
DOI：
10.1109/jrproc.1957.278478
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发表时间：
1957
期刊：
影响因子：
--
通讯作者：
E. Pierce
中科院分区：
文献类型：
--
作者：
J. Chapman;E. Pierce
英国剑桥最近的实验工作表明，即使传播距离相同，来自不同地理位置的大气在特征上也存在系统性差异，并且没有理由预期沿各自传播路径的电离层存在明显的差异。给出了如何通过记录和分类波形类型来追踪这些“地理”效应的详细而精确的信息。它还表明，对于 0.65 至 27 kc 之间固定频率的大气观测，影响是明显的。没有尝试找出地理现象的原因，但最有希望的方法似乎是考虑地球表面电导率的差异，特别是陆地和海洋之间的电导率差异。
From recent experimental work at Cambridge, Eng., it is shown that atmospherics originating from different geographical localities are systematically different in character, even when the distances of propagation are the same and there is no reason to anticipate appreciable dissimilarities in the ionospheres along the respective propagation paths. Detailed and precise information is given of how these "geographical" effects may be traced by recording and classifying types of waveforms. It is also shown that the effects are apparent for observations of atmospherics at fixed frequencies between 0.65 and 27 kc. No attempt is made to assign a reason for the geographical phenomena, but the most promising approach would seem to be by considering differences in the conductivity of the earth's surface, and in particular, those between land and sea.