Effect of smoke on the atmospheric‐electric elements at the Watheroo Magnetic Observatory
Effect of smoke on the atmospheric‐electric elements at the Watheroo Magnetic Observatory
复制标题
烟雾对瓦瑟鲁磁观测站大气电元素的影响
DOI：
10.1029/te048i001p00049
复制
发表时间：
1943
影响因子：
--
通讯作者：
G. R. Wait
中科院分区：
文献类型：
--
作者：
G. R. Wait
沃瑟鲁地磁观测站的浓烟有效地增加了该站上空垂直空气柱的总阻力。这一证据和其他证据表明，烟雾延伸到大约一公里的高度。天文台上空垂直空气柱的总阻力在一天中变化很大。烟雾的存在使变化和平均值都增加。除了大气中凝结核和放射性物质的数量之外，其他因素被认为可能会有效地产生总阻力的日变化。Watheroo的烟雾强度似乎与风向和风速无关。在陆地站上空低层大气中的电离率（小离子产生）在一天中变化很大，在清晨最大，在晚上最小。这种变化的原因似乎是空气中放射性物质含量的变化。
Intense smoke at the Watheroo Magnetic Observatory effectively increases the total resistance of the vertical column of air over the station. This and other evidence indicate that the smoke extends to a height of about one km. The total resistance of the vertical column of air over the Observatory varies greatly through the day. Both the variation and the average value are increased by the presence of smoke. Factors other than the number of condensation-nuclei and radioactive matter in the atmosphere, it is believed, may be effective in producing a diurnal variation in this total resistance. The intensity of smoke at Watheroo appears to be independent of the direction and velocity of the wind. The rate of ionization (small-ion production) in the lower atmosphere over a station on land is found to vary considerably through the day, being greatest during the early morning hours and least during the evening. The cause for the variation appears to be a variation in the amount of radioactive matter in the air.