| 海洋磁力测量空间归算阈值条件确定及其应用 |
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| 引用本文： | 于波,黄谟涛,翟国君,刘雁春.海洋磁力测量空间归算阈值条件确定及其应用[J].武汉大学学报(信息科学版),2010(2). |
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| 作者姓名： | 于波 黄谟涛 翟国君 刘雁春 |
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| 作者单位： | 海军大连舰艇学院海测工程系;海军海洋测绘研究所; |
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| 基金项目： | 国家自然科学基金资助项目(40671161); 国家863计划资助项目(2007AA12Z326) |
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| 摘 要： | 对仿真和实测数据的空间变化进行了分析,得出拖鱼起伏高度变化对测量成果的影响量级与测区磁异常水平梯度变化的复杂程度有关。提出了归算的阈值条件,并通过实例验证了该条件的合理性与实用性,并提出当测区要求是一级、二级和三级测量精度时,必须将测量数据归算到平均海面上。
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| 关 键 词： | 海洋磁力测量 空间归算 均方根差 拖鱼起伏高度 |
Application and Determination of Threshold on Free-Air Correction of Marine Magnetic Survey |
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| YU Bo HUANG Motao ZHAI Guojun LIU Yanchun.Application and Determination of Threshold on Free-Air Correction of Marine Magnetic Survey[J].Geomatics and Information Science of Wuhan University,2010(2). |
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| Authors: | YU Bo HUANG Motao ZHAI Guojun LIU Yanchun |
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| Institution: | YU Bo1 HUANG Motao2 ZHAI Guojun2 LIU Yanchun1(1 Department of Marine , Surveying Science,Dalian Naval Academy,667 Jiefang Road,Dalian 116018,China)(2 Naval Institute of Hydrographic Surveying , Charting,40 Youyi Road,Tianjin 300061,China) |
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| Abstract: | Space variation of simulation and practical data are analyzed.The conclusions show that the influence of fish's height change to surveying results is relate with complexity of horizontal gradient of magnetic anomaly.Based on foregoing analysis,threshold is proposed,and rationality and practicability are proved by test data.We suggest that magnetic survey data must be corrected to mean sea level when carry level 1,level 2 and level 3 marine magnetic survey. |
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| Keywords: | marine magnetic survey free-air correction RMS error fish\'s height |
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