Statistical analysis of geomagnetic field variations during the partial solar eclipse on 2011 January 4 in Turkey  

作　　者：Abdullah Ates Yunus Levent Ekinci Aydin Buyuksarac Attila Aydemir Alper Demirci 

机构地区：[1]Ankara University, Faculty of Engineering, Department of Geophysical Engineering, Besevler,TR-06100, Ankara, Turkey [2]Bitlis Eren University, Faculty of Arts and Sciences, Department of Archaeology, TR-13000,Bitlis, Turkey [3]Bitlis Eren University, Faculty of Engineering and Architecture, Department of Civil Engineering, TR-13000, Bitlis, Turkey [4]Turkish Petroleum Corp., Sogutozu Mah., 2180. Cad. No: 10, Sogutozu, TR-06100, Ankara,Turkey [5]Bitlis Eren University, Faculty of Engineering and Architecture, Department of Geophysical Engineering, TR-13000, Bitlis, Turkey

出　　处：《Research in Astronomy and Astrophysics》2015年第5期742-752,共11页天文和天体物理学研究（英文版）

摘　　要：Some geophysical parameters, such as those related to gravitation and the geomagnetic field, could change during solar eclipses. In order to observe geomagnetic fluctuations, geomagnetic measurements were carded out in a limited time frame during the partial solar eclipse that occurred on 2011 January 4 and was observed in Canakkale and Ankara, Turkey. Additionally, records of the geomagnetic field spanning 24 hours, obtained from another observatory （in Iznik, Turkey）, were also analyzed to check for any peculiar variations. In the data processing stage, a polynomial fit, following the application of a running average routine, was applied to the geomagnetic field data sets. Geomagnetic field data sets indicated there was a characteristic decrease at the beginning of the solar eclipse and this decrease can be well-correlated with previous geomagnetic field measurements that were taken during the total solar eclipse that was observed in Turkey on 2006 March 29. The behavior of the geomagnetic field is also consistent with previous observations in the literature. As a result of these analyses, it can be suggested that eclipses can cause a shielding effect on the geomagnetic field of the Earth.Some geophysical parameters, such as those related to gravitation and the geomagnetic field, could change during solar eclipses. In order to observe geomagnetic fluctuations, geomagnetic measurements were carded out in a limited time frame during the partial solar eclipse that occurred on 2011 January 4 and was observed in Canakkale and Ankara, Turkey. Additionally, records of the geomagnetic field spanning 24 hours, obtained from another observatory （in Iznik, Turkey）, were also analyzed to check for any peculiar variations. In the data processing stage, a polynomial fit, following the application of a running average routine, was applied to the geomagnetic field data sets. Geomagnetic field data sets indicated there was a characteristic decrease at the beginning of the solar eclipse and this decrease can be well-correlated with previous geomagnetic field measurements that were taken during the total solar eclipse that was observed in Turkey on 2006 March 29. The behavior of the geomagnetic field is also consistent with previous observations in the literature. As a result of these analyses, it can be suggested that eclipses can cause a shielding effect on the geomagnetic field of the Earth.

关 键 词：SUN magnetic field -- eclipses -- methods data analysis -- methods statistics 

分 类 号：P125.11[天文地球—天体测量]