香港国际机场地磁测量结果初步研究

Preliminary Study on Geomagnetic Survey Results of Hong Kong International Airport

广东省地震局地磁项目测量组分别于2010年和2015年对香港国际机场磁罗经校正场(CCP)地磁场总强度F、磁偏角D、磁倾角Ⅰ进行了科学、规范、准确的地磁绝对测量。利用肇庆地磁台高精度的数字地磁观测资料,将香港国际机场磁罗经校正场(CCP)内各个测点在不同时间的测量数据进行了通化处理。根据2010年和2015年的地磁测量结果及香港地区历史地磁观测资料,通过初步研究可以看出香港国际机场地磁场F、D、I三要素时间变化特征及变化趋势与肇庆地磁台长期观测结果基本一致。香港国际机场地磁测量不仅是项严谨的工程项目测量任务,它还为香港地区地磁场变化的研究取得了第一手宝贵的观测数据,具有一定的地磁学研究价值。

The geomagnetic project team of the Guangdong Earthquake Agency measured the geomagnetic filed intensity, the geomagnetic declination angle, the geomagnetic inclination angle through magnetic compass correction in Hong Kong international airport by the means of the absolute measurement in 2010 and 2015. The paper processed the measuring data by using the high qualitative digital geomagnetic relative recording material of Zhaoqinq geomagnetic station. Based on the measuring result in 2010 and 2015 and the historical magnetic data of Hong Kong region, the paper can draw a conclusion that the time-varying property of the three geomagnetic element F、 D、 I in Hong Kong international airport is corresponding to the long-period result of Zhaoqing geomagnetic station. The geomagnetic measurement of Hong Kong international airport is not only a strict measuring project but also provides the first-handing precious observational data which has certain research value for geomagnetism studying.