Effects of Solar Eclipse on Audio Frequency Atmospherics
Effects of Solar Eclipse on Audio Frequency Atmospherics
复制标题
日食对音频大气的影响
DOI：
10.1038/131081a0
复制
发表时间：
1933
期刊：
影响因子：
64.8
通讯作者：
E. M. Boardman
中科院分区：
文献类型：
--
作者：
E. Burton;E. M. Boardman
对低频大气的研究表明，日变化明显，夜间强度大大超过白天1，这些变化可能是由于太阳辐射对高层大气反射层和吸收层电离的影响。虽然人们认为这种电离的主要部分是由于阳光，但一个明显的影响可能是由于来自太阳的气溶胶辐射。日食提供了一个比较光和微粒效应的机会，因为这些类型的辐射速度的差异应该导致地球表面两次日食的时间间隔。S. Chapman 2已经证明，假设微粒速度为每秒1,000英里，微粒食比可见食早两个小时。月球通过微粒辐射的运动产生了拖尾阴影。在超越月球的可见阴影时，地球首先到达微粒阴影的位置。
STUDIES of low-frequency atmospherics have shown marked diurnal variations, the nighttime intensity considerably exceeding that of the day1 These variations may be attributed to radiation from the sun through its effect on ionisation in the reflecting and absorbing layers of the upper atmosphere. Although it is believed that the major portion of this ionisation is due to sunlight, an appreciable effect may be due to a eorpuscular radiation from the sun. A solar eclipse affords an opportunity for comparing light and corpuscular effects, since a difference in velocity of these types of radiation should result in a time separation of the two eclipses at the earth's surface. Prof. S. Chapman2 has shown that, with an assumed corpuscular velocity of 1,000 miles a second, the corpuscular eclipse precedes the visible one by about two hours. The motion of the moon through a corpuscular radiation results in a trailing shadow. In overtaking the visible shadow of the moon, the earth arrives first at the location of the corpuscular shadow.