【摘要】 通过在苏、鲁、豫、皖交界及南黄海地区开展地磁基本场矢量测量、数据处理和分析,计算了该区域地磁基本场和地磁异常场总强度和水平强度的曲面样条模型,并绘制相应的地磁图和地磁异常图,探索研究局部地磁基本场的变化特征。分析结果表明,通过区域地磁基本场矢量测量,能相对精细地反应区域地磁基本场空间分布,分辨存在的地磁基本场异常,为地震中长期预报提供科学数据和相关地球物理场变化背景。更多还原

【Abstract】 By means of three-component geomagnetic surveying,the processing and analyzing of data in the juncture region of Jiangsu-Shandong-Henan-Anhui provinces and the South Yellow Sea region,surface spline models for total intensity and horizontal intensity of the geomagnetic field and geomagnetic anomaly field are calculated,and the corresponding geomagnetic field charts and geomagnetic anomaly charts are drawn.Characteristics of variation in regional geomagnetic field are researched.The study shows that three-component geomagnetic survey can not only deliberately describe space distribution of geomagnetic field but also provide scientific data and background field for earthquake prediction.更多还原