The Developing Of Magnetic Data Pretreatment Software Based On MAPGIS

Magnetic prospecting has been widely used as geophysics has been developing continuously, and a set of software which has combined modules of data inputting, data pretreating and data mapmaking is urgently needed. At present, the software of magnetic data is mostly the kind of software which has the unattached function - inputting, pretreating and mapmaking, the different software is designed according to different kind of magnetometer as well.The software is developed by means of Fortran programming. Many forms of datum from the familiar proton-magnetometers including CZM-3, PMG-1, GSM-19T, MP-4, G856, WCZ-1 are collected, which can be transformed into datum of uniform format in the data transform module. Then, the data files after pretreated in the pretreatment module can be used in the module of data mapmaking, producing corresponding MapGIS code files which will be transformed further into MapGIS format files in MapGIS file transform subsystem, and the latter constitute universal magnetic data maps: Primitive data map, Magnetic anomaly plan-profile map, Magnetic anomaly profile map, and these can be wholly displayed in the software MapGIS the edition of that is above 6.5. The software concerned in this dissertation is also a set of visual-interfaced software that conveniences the users.The software will simplify the operations of magnetic data inputting, pretreating and mapping, which has been tested by the use of actual datum and can be applied in magnetic data processing in practice.