目前教科书和有关测量规范中并没有磁偏角测量方法及要求的描述,本文详细描述了南方某新机场磁偏角施测的技术过程,供以后类似工作参考。机场运行需要跑道上的磁偏角,但本次实际观测数据表明,机场路道上的磁偏角因受机场环境影响,不同地方变化很大,不能反映机场整个区域的实际情况。而跑道外、离跑道250m以上的地区,磁偏角观测数据比较稳定,能较客观地反映机场整体的实际情况。 At present, there is no description of magnetic declination methods and requirements in textbooks and related measurement standards. This paper describes in detail the technical process of magnetic declination measurement in a new airport in the South for reference to similar work later. The actual operation of the airport requires declination on the runway. However, this actual observation shows that the magnetic declination on the road of an airport is greatly affected by the airport environment and varies greatly from place to place. It can not reflect the actual situation in the entire area of ​​the airport. Outside the runway, from the runway above 250m, the magnetic declination observation data is relatively stable, which can objectively reflect the actual situation of the airport as a whole.