| 中国北方地区冬季哨声的传播特征 |
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| 引用本文： | 贺长明,陈鸿飞,朱岗昆.中国北方地区冬季哨声的传播特征[J].地球物理学报,1986,29(4):313. |
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| 作者姓名： | 贺长明 陈鸿飞 朱岗昆 |
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| 作者单位： | 中国科学院地球物理研究所, 北京 |
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| 摘 要： | 本文对漠河、哈尔滨、北京三个台站1983年冬季的哨声观测资料进行了统计分析。结果表明,这三个地区的哨声活动在日落和后半夜都同时有高峰出现。在日落期间,哨声的平均色散值较高,出现有较高纬度的哨声穿出电离层后沿地球-电离层波导传播到较低纬度地区的现象;而在午夜后,哨声的平均色散值较低,有较低纬度的哨声穿出电离层后传播到较高纬度的现象。从哨声形态学特征判断,漠河和哈尔滨属于中纬度台站,而北京则属于低纬度台站的范畴。
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| 关 键 词： | 漠河 哨声 电离层 哈尔滨 观测资料 地磁活动 台站 小色散 北京 地球 |
| 收稿时间： | 1985-07-19 |
PROPAGATION CHARACTERISTICS OF WINTER WHISTLERS IN NORTHERN CHINA |
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| HE CHANG-MING,CHEN HONG-FEI,TSCHU KANG-KUN.PROPAGATION CHARACTERISTICS OF WINTER WHISTLERS IN NORTHERN CHINA[J].Chinese Journal of Geophysics,1986,29(4):313. |
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| Authors: | HE CHANG-MING CHEN HONG-FEI TSCHU KANG-KUN |
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| Institution: | Institute of Geophysics, Academia Sinica, Beijing |
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| Abstract: | In this paper the whistler data from three stations, Mohe, Harbin and Beijing, inthe winter of 1983 are statistically analysed. It is shown that whistler activities of thesethree stations have peaks during sunset and after midnight. The mean whistler disper-sion value is larger during sunset, implying that whistlers may propagate from higherlatitudes to lower latitudes after passing through the ionosphere. After midnight, themean whistler dispersion value is lower, implying propagation of whistlers from lowerlatitudes to higher latitudes. Mohe and Harbin all possess characteristics of middlelatitude type, while Beijing, of lower latitude type. |
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