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重要的海洋测绘成果——南海重磁异常图
Important Marine Charting Results:the Gravity and Magnetic Anomaly Maps of South China Sea
【摘要】 在前人工作基础上,校正、处理、整合升华了1987~2007年的南海海洋重磁调查成果,编制完成南海空间重力异常图、南海磁力ΔT异常图两份基础图件,探索了南海磁力ΔZ⊥异常的处理方法,并且获得了可信的南海磁力ΔZ⊥异常图。成果证实,本文编制的南海重力测量图件、磁力测量图件与南海多波束测深测量的结果匹配,这三种地球物理的成果可以互为验证、互为补充,并且与拖网获得的岩石地球物理性质一致,说明所编制的南海海洋测绘图件可信。提出开展多兵种联合的海洋测绘工作建议,这是海洋测绘发展的方向,互为验证、互为补充的海洋测绘成果才能踏实用于海洋资源、海洋地质灾害预测、海防等领域的基础研究,才能为决策提供客观依据。
【Abstract】 In this paper,based on previous work,we calibrated,processed,integrated and sublimated the marine gravity and magnetic survey results of South China Sea of 1987~2007,completed the basal gravity anomaly map and magnetic anomaly ΔT map of South China Sea.We researched the processing method of magnetic anomaly ΔZ⊥,and obtained a credible magnetic anomaly ΔZ⊥ map of South China Sea.Results confirmed that the gravity survey map and magnetic survey map of South China Sea match the multibeam bathymetric measurement results,the three geophysical results can verify each other,complement each other and consistent with the geophysical properties of rock got by trawl,showing that the marine charting maps of South China Sea are credible,and can be used in the basic research of the resources of South China Sea,the marine geological disaster prediction and coastal defense areas.We propose to carry out combined works formarine charting,these combined works should be the direction of development,only the marine charting results that can authenticate and complement each other is authentic,so it can be used in the basic research of the resources of South China Sea,the marine geological disaster prediction and coastal defense areas,and provide external basis for decision-making.
【Key words】 marine charting of South China Sea; the integration of gravity and magnetic measurement results; the verification of geophysical field; combined marine charting;
- 【文献出处】 海洋测绘 ,Hydrographic Surveying and Charting , 编辑部邮箱 ,2010年06期
- 【分类号】P229
- 【被引频次】8
- 【下载频次】514