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EARTHQUAKE ›› 2003, Vol. 23 ›› Issue (3): 126-130.

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Research on influence of observation time for spatial correlation of geomagnetic absolute value

FENG Zhi-sheng1, JIANG Yian-lin2, MEI Wei-ping1, ZHANG Xiu-xia1, ZHUANG Ming-long1, ZHANG Xiao-yong1, SONG De-wei1   

  1. 1. Seismological Bureau of Jiangsu Province, Nanjing 210014, China;
    2. Gaoyou Seismic Station, Jiangsu Province, Gaoyou 225600, China
  • Received:2002-06-20 Revised:2002-09-04 Online:2003-07-31 Published:2021-12-21

Abstract: This paper discussed the influence of the observation time on spatial correlation of the geomagnetic absolute value.The results show that the correlation coefficient of the daytime value is higher than the nighttime one, but it is easier to recognize the anomaly of spatial correlation from the daytime value than the nighttime one.

Key words: Geomagnetic anomaly, Correlation coefficient, Earthquake

CLC Number: