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航磁磁场水平调整是压制非地质因素对磁场的干扰,还原磁场本来面貌的重要手段,传统方法主要为切割线调平和微调平,但在弱磁场区实测磁场面貌不清晰,干扰异常影响突出,使用常规磁场水平调整方法难以达到理想的处理效果.本文针对黔东地区航磁弱异常,在介绍弱磁场成因、磁场水平误差表现形式的基础上,对该地区磁场水平进行了调整.为获得较好的磁场水平调整效果,使用了弱磁场区水平调整方法,并针对弱磁场区高压线等干扰异常明显的特点,利用该方法对区内高压线干扰异常进行处理,处理后的磁场趋势更合理,磁场面貌更清晰,突出了微弱局部异常,更好地满足后续数据转换处理和地质解释的需要.
Airborne magnetic field level adjustment is to suppress non-geological factors on the magnetic field interference, an important means to restore the original appearance of the magnetic field, the traditional method is the main cutting line leveling and fine adjustment, but in the weak magnetic field measured magnetic field is not clear, prominent interference anomalies, The conventional magnetic field level adjustment method is difficult to achieve the desired effect.This paper aims to ameliorate the magnetic weakness anomaly in the eastern part of Guizhou Province and on the basis of introducing the causes of the weak magnetic field and the manifestation of the horizontal error of the magnetic field, Good magnetic field level adjustment effect, the use of a weak magnetic field level adjustment method, and for the weak magnetic field high voltage lines and other characteristics of the abnormal anomaly, the use of the method to deal with high-voltage line interference anomalies in the region, the treated magnetic field trend is more reasonable, the magnetic field Clearer, highlights the weak local anomalies, to better meet the needs of subsequent data conversion and geological interpretation.