Data Quality Analysis and Method Applications of the Fluxgate Array in Lu'an,Anhui
In"the 13th Five-Year Plan"period,the Anhui Earthquake Agency constructed a fluxgate array consisting of 15 stations in the Dabie Mountain area in Anhui Province.This paper selects the three-component observation data of the geomagnetic field from June to September 2023,judges the operation status of the instrument by the continuity and completeness rates of data during the period,analyzes and evaluates the quality of observation data since the operation of the instrument by utilizing the fitting analysis of data,the response ratio and day-by-day ratio of geomagnetic loading and unloading,and the analysis of the daily characteristics of the instrument at the approximate same longitude and lati-tude,and concludes that the data quality of fluxgate stations in Lu'an,Anhui is better.
Geomagnetic arrayFitting analysisDaily variation characteristic analysisQuality analysis and assessment