欢迎访问《地震》，
地震

地震 ›› 2025, Vol. 45 ›› Issue (3): 168-179.doi: 10.12196/j.issn.1000-3274.2025.03.011

• • 上一篇    下一篇

基于江苏地区质子矢量磁力仪台站的泰勒多项式模型研究

孙君嵩1, 吴迎燕2, 李鸿宇1, 王丽1, 杨杰1, 陈华源3   

  1. 1.江苏省地震局, 江苏 南京 210004;
    2.中国地震局地震预测研究所, 北京 100036;
    3.福建省地震局, 福建 福州 350003
  • 收稿日期:2024-05-11 修回日期:2024-12-20 出版日期:2025-07-31 发布日期:2025-10-23
  • 作者简介:孙君嵩(1993-), 男, 辽宁瓦房店人, 工程师, 主要从事地球电磁学研究。 E-mail: junsong_sun@sina.com
  • 基金资助:
    中国地震局地震预测研究所基本科研业务费专项(CEAIEF20220207); 中国地震局地震科技星火计划项目(XH22001YC); 国家自然科学基金项目(42274107); 2024年度震情跟踪定向工作任务(2024010406); 江苏省地震局青年基金项目(202306)

Research on Taylor Polynomial Model Based on FHD Stations in Jiangsu Province

SUN Jun-song1, WU Ying-yan2, LI Hong-yu1, WANG Li1, YANG Jie1, CHEN Hua-yuan3   

  1. 1. Jiangsu Earthquake Agency, Nanjing 210004, China;
    2. Institute of Earthquake Forecasting, China Earthquake Administration, Beijing 100036, China;
    3. Fujian Earthquake Agency, Fuzhou 350003, China
  • Received:2024-05-11 Revised:2024-12-20 Online:2025-07-31 Published:2025-10-23

PDF (PC)

摘要： 使用江苏地区11个质子矢量磁力仪(FHD)的F、 H、 Z分量, 通过泰勒多项式拟合方法建立了该地区地磁泰勒多项式模型, 将该模型与IGRF13模型在该地区的计算结果以及质子矢量磁力仪(FHD)实测值进行对比, 对比结果表明: ① 江苏地区质子矢量磁力仪(FHD)台站的实测值与IGRF13模型差值在-208.27~176.74 nT之间, 这与前人研究的该模型全球估计精度50~300 nT相吻合; ② 构建的江苏地区泰勒多项式模型与IGRF13模型总体描述较为一致, 江苏地区泰勒多项式模型可以更好地突出局部地磁特征; ③ 区域泰勒多项式模型精度高于IGRF13模型, 结合该地区的连续观测数据, 可以更好地为区域地磁图构建提供有益参考。

关键词: 泰勒多项式, IGRF13模型, 质子矢量磁力仪, 区域地磁图, 区域地磁模型

Abstract: A Taylor polynomial model for Jiangsu region was established using the F, H, and Z components of 11 proton vector magnetometers (FHD). The calculation results of the model were compared with those of the IGRF13 model in the region, as well as the measured values of the proton vector magnetometer (FHD). The comparison results showed that: ① The difference between the measured values of proton vector magnetometer (FHD) stations in Jiangsu region and the IGRF13 model is between -208.27~176.74 nT, which is consistent with the global estimation accuracy of 50~300 nT of the model studied by previous researchers. ② The Taylor polynomial model constructed in Jiangsu region is generally consistent with the IGRF13 model, and the Taylor polynomial model in Jiangsu region can better highlight local geomagnetic features. ③ The accuracy of the Taylor polynomial model in the region is higher than that of the IGRF13 model. Combined with continuous observation data in the region, it can provide useful references for the construction of regional geomagnetic maps.

Key words: Taylor polynomial, IGRF13 model, Proton vector magnetometer, Regional geomagnetic map, Regional geomagnetic model

中图分类号: