利用IGRF模型计算全张量地磁梯度
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钟炀, 管彦武, 石甲强, 肖锋
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The calculation method of full tensor geomagnetic gradient based on IGRF model
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Yang ZHONG, Yan-Wu GUAN, Jia-Qiang SHI, Feng XIAO
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表3 测区内点位磁场值
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Table 3 Table of point position magnetic field values in the test area
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| 城市 | 来源 | Bx/nT | By/nT | Bz/nT | Bh/nT | B/nT | D/° | I/° | | 成都市 | 本文计算 | 33866.2 | -1213.9 | 37855.4 | 33887.9 | 50807.6 | -2.0528 | 48.1652 | | NOAA | 33866.2 | -1213.9 | 37855.4 | 33887.9 | 50807.7 | -2.0529 | 48.1652 | | 自贡市 | 本文计算 | 34644.5 | -1268.7 | 36051.7 | 34667.6 | 50015.7 | -2.0972 | 46.1212 | | NOAA | 34644.5 | -1268.7 | 36051.7 | 34667.7 | 50015.8 | -2.0973 | 46.1212 | | 泸州市 | 本文计算 | 34909.9 | -1334.7 | 35359.9 | 34935.3 | 49707.1 | -2.1895 | 45.346 | | NOAA | 34909.9 | -1334.7 | 35359.9 | 34935.4 | 49707.2 | -2.1895 | 45.346 | | 德阳市 | 本文计算 | 33580.9 | -1266.4 | 38443.8 | 33604.7 | 51060.8 | -2.1597 | 48.8424 | | NOAA | 33580.9 | -1266.4 | 38443.8 | 33604.8 | 51060.8 | -2.1597 | 48.8424 | | 最大绝对误差 | 0 | 0 | 0 | 0.1 | 0.1 | 0.0001 | 0 |
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