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巴布亚新几内亚日全食的地磁场效应
引用本文:刘长发.巴布亚新几内亚日全食的地磁场效应[J].地球物理学报,1986,29(6):631-635.
作者姓名:刘长发
作者单位:中国科学院地球物理研究所, 北京
摘    要:为了研究1983年6月11日日全食的地磁场效应,我们在巴布亚新几内亚的莫尔兹比港(Port Moresby)进行了地磁观测。经过资料分析,在消除当天的正常日变化和干扰变化后,日食效应比较明显,水平强度减小(-3.6±1.2nT),磁偏角偏东(0.6′±0.1′E)和垂直强度增加(5.0±1.1nT)。证实了日全食引起地磁场强度和方向的变化,与食分、食甚持续时间、太阳高度角(即日食发生的地方时)和季节有关。

关 键 词:日全食  地磁场效应  日食效应  巴布亚新几内亚  莫尔兹比港  地磁日变化  动曲线  食分  扰动场  水平强度  
收稿时间:1986-01-23

THE EFFECT ON THE GEOMAGNETIC FIELD OF THE TOTAL SOLAR ECLIPSE IN PAPUA NEW GUINEA
LIU CHANG-FA.THE EFFECT ON THE GEOMAGNETIC FIELD OF THE TOTAL SOLAR ECLIPSE IN PAPUA NEW GUINEA[J].Chinese Journal of Geophysics,1986,29(6):631-635.
Authors:LIU CHANG-FA
Institution:Institute of Geophysics, Academia Sinica, Beijing
Abstract:The effect on geomagnetic field of the total solar eclipse was observed at Port Moresby, PAPUA NEW GUINEA during the total solar eclipse on June 11, 1983.The eclipse effect is distinct by the eliminated the normal daily variation and disturbed variation of the eclipse day. The results indicate that the decrease of the horizontal intensity ( - 3.6 ± 1.2nT), the deviate eastward of the declination (0.6'±0.1'E) and the increase of the vertical intensity (5.0 ± 1.1 nT). It's confirmed the magnitude change in intensity and direction of geomagnetic field due to solar eclipse depends on the degree and the duration time of totality, the high of altitude of sun (that is the local time of the solar eclipse occurrence) and seasons.
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