Application of Principal Component Analysis in Shanxi Geomagnetic Observatory
ZHANG Liang'e
YAN Ji-ming
CHEN Chang-jun
LIU Su-zhen
JIA Hai-ying
TIAN Wen-qing
CAO Wen-qiang
Abstract：The observation data from October 2015 to June 2016 record by 5 sets of GM4 flux-gate magne-tometer on both sides of the Hengshan fault zone in the north of the Shanxi province are study using the Principal Component Analysis (PCA ) method .The results show that the contribution of the first to the fourth principal component is about 91％ ;the first principal component is positively correlated with the Kp index of geomagnetic activity ;the second to the fifth principal components has no obvious daily variation characteristics ;there is also a negative correlation between the first and other principal components .
Keywords：geomagnetic observatories arrayPCAvariation characteristics
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 64-68 )