地震数据模型优化过程方法及初步应用
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摘要
由于地震数据种类繁多且数量不断增大,使得地震数据共享和数据服务面临的困难越来越大。针对这个问题,提出了基于PowerDesigner建模工具对已有的地震数据模型进行优化的过程方法。并将此方法初步应用于现有的1/400万活动断层GIS数据库中,针对该库目前存在的问题,实现了对断层数据模型的优化,结合具体的实例,应用了优化后的断层数据库。同时,将优化前后的断层数据物理模型进行了对比分析,表明优化后的模型使用起来更加灵活、方便,数据描述更加准确,数据之间的关系更加清晰,数据约束更加规范、完善,能够满足地震工作者不同的需求,为今后的地震数据共享和数据服务奠定了良好的基础。
Because the seismic data is so various and is continuously increasing in number,sharing seismic data and providing data service is more difficult.This paper proposes a method to optimize the existing seismic data model based on the modeling tool of PowerDesigner.The method was initially applied to the exiting 1/4000000 active fault GIS database.Aimed at the actual problem of active fault GIS database,the method realizes the optimization of fault data model.And the optimized fault database was applied to specific example cases.Meanwhile,comparative analysis was done between the optimized PDM with the old one.The result shows that the optimized model is more flexible and convenient to use,the data description is more accurate,the relationship between data is clearer,and the data constraint is more standard and complete.It can meet the different needs of seismologists.The proposed optimization method for earthquake data model has a certain value of popularization and application,and it lays a good foundation for seismic data sharing and data service in the future.
Because the seismic data is so various and is continuously increasing in number,sharing seismic data and providing data service is more difficult.This paper proposes a method to optimize the existing seismic data model based on the modeling tool of PowerDesigner.The method was initially applied to the exiting 1/4000000 active fault GIS database.Aimed at the actual problem of active fault GIS database,the method realizes the optimization of fault data model.And the optimized fault database was applied to specific example cases.Meanwhile,comparative analysis was done between the optimized PDM with the old one.The result shows that the optimized model is more flexible and convenient to use,the data description is more accurate,the relationship between data is clearer,and the data constraint is more standard and complete.It can meet the different needs of seismologists.The proposed optimization method for earthquake data model has a certain value of popularization and application,and it lays a good foundation for seismic data sharing and data service in the future.
引文
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马承杰.2005.地震数据访问技术研究[J].石油工业计算机应用,13(4):5—7.MA Cheng-jie.2005.A study of seismic data access technology[J].Computer Applications of Petroleum,13(4):5—7(in Chinese).
屈春燕.2008.最新1/400万中国活动构造空间数据库的建立[J].地震地质,30(1):298—304.QU Chun-yan.2008.Building to the active tectonic database of China[J].Seismology and Geology,30(1):298—304(in Chinese).
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王秀英,牛从达.2004.台网中心地震前兆数据库的结构及其管理维护[J].华北地震科学,22(3):28—32.WANG Xiu-ying,NIU Cong-da.2004.The structure of precursor database in network center and its management[J].North China Earthquake Sciences,22(3):28—32(in Chinese).
轩兴涛.2008.基于PowerDesigner模型驱动机制下的全程建模研究[J].西安石油大学学报:自然科学版,23(6):104—106.XUAN Xing-tao.2008.Full process modeling technique based on the model drive mechanism of PowerDesigner[J].Journal of Xi'an Shiyou University(Natural Science Edition),23(6):104—106(in Chinese).
姚运生,李井冈,李胜乐.2006.提高地震前兆数据库存取效率的新表结构[J].大地测量与地球动力学,26(3):122—126.YAO Yun-sheng,LI Jing-gang,LI Sheng-le.2006.A new table structure to improve earthquake precursor database ac-cess efficiency[J].Journal of Geodesy and Geodynamics,26(3):122—126(in Chinese).
路鹏,苗良田,李志雄,等.2007.中国科学数据共享现状的调查与分析[J].地震,27(3):125—130.LU Peng,MIAO Liang-tian,LI Zhi-xiong,et al.2007.Investigation on scientific data sharing situation and its analysis[J].Earthquake,27(3):125—130(in Chinese).
马承杰.2005.地震数据访问技术研究[J].石油工业计算机应用,13(4):5—7.MA Cheng-jie.2005.A study of seismic data access technology[J].Computer Applications of Petroleum,13(4):5—7(in Chinese).
屈春燕.2008.最新1/400万中国活动构造空间数据库的建立[J].地震地质,30(1):298—304.QU Chun-yan.2008.Building to the active tectonic database of China[J].Seismology and Geology,30(1):298—304(in Chinese).
萨师煊,王珊.2000.数据库系统概论[M].北京:高等教育出版社.SA Shi-xuan,WANG Shan.2000.Introduction of Database Systems[M].Higher Education Press,Beijing(in Chi-nese).
王秀英,牛从达.2004.台网中心地震前兆数据库的结构及其管理维护[J].华北地震科学,22(3):28—32.WANG Xiu-ying,NIU Cong-da.2004.The structure of precursor database in network center and its management[J].North China Earthquake Sciences,22(3):28—32(in Chinese).
轩兴涛.2008.基于PowerDesigner模型驱动机制下的全程建模研究[J].西安石油大学学报:自然科学版,23(6):104—106.XUAN Xing-tao.2008.Full process modeling technique based on the model drive mechanism of PowerDesigner[J].Journal of Xi'an Shiyou University(Natural Science Edition),23(6):104—106(in Chinese).
姚运生,李井冈,李胜乐.2006.提高地震前兆数据库存取效率的新表结构[J].大地测量与地球动力学,26(3):122—126.YAO Yun-sheng,LI Jing-gang,LI Sheng-le.2006.A new table structure to improve earthquake precursor database ac-cess efficiency[J].Journal of Geodesy and Geodynamics,26(3):122—126(in Chinese).
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