| 海水层对地磁日变的影响 |
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| 引用本文： | 张锡林.海水层对地磁日变的影响[J].海洋测绘,2011,31(5):21-23. |
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| 作者姓名： | 张锡林 |
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| 作者单位： | 国土资源部广州海洋地质调查局,广东广州,510760 |
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| 摘 要： | 在海洋地磁测量中地磁日变的影响不可忽视,由于海底地磁日变观测站可建在测区内或附近,通常情况下能较好地反映测区范围内的地磁日变状况.但从实际观测资料对比发现,海底地磁观测站站位水深对地磁有效信息的保留存在一定的相关性.随着水深增大,其保留的信息量逐渐减少,即水层对地磁信息有着明显的衰减作用.
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| 关 键 词： | 海洋磁力测量 地磁日变 海底测站 水层影响 |
Seawater Depth Influence on Geomagnetic Diurnal Data |
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| ZHANG Xi-lin.Seawater Depth Influence on Geomagnetic Diurnal Data[J].Hydrographic Surveying and Charting,2011,31(5):21-23. |
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| Authors: | ZHANG Xi-lin |
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| Institution: | ZHANG Xi-lin(Guangzhou Marine Geological Survey,MLR,Guangzhou,Guangdong,510570) |
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| Abstract: | Geomagnetic diurnal correction can not be ignored in marine magnetic survey.The geomagnetic diurnal data from observation station on seafloor are usually better reflected the change in survey area,because the observation station on seafloor is closed to the survey area.But the diurnal data from seafloor is subsided obviously and with the water depth increases the influence is bigger. |
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| Keywords: | marine magnetic survey geomagnetic diurnal correction observation station on seafloor influence of water |
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