{"id":71,"date":"2012-03-14T21:43:13","date_gmt":"2012-03-14T17:43:13","guid":{"rendered":"https:\/\/www.zond-geo.co\/english\/?page_id=71"},"modified":"2018-10-28T19:56:03","modified_gmt":"2018-10-28T15:56:03","slug":"zondres2d","status":"publish","type":"page","link":"https:\/\/www.zond-geo.co\/english\/zond-software\/ert-and-ves\/zondres2d\/","title":{"rendered":"ZondRes2d"},"content":{"rendered":"Zondres2d<\/strong> program is \u00a0 designed for two-dimensional interpretation of electrical tomography<\/strong>\u00a0data by resistivity and induced polarization<\/strong> method in land, cross-borehole and water cases.\r\n\r\nElectrical tomography<\/strong> (Resistivity imaging<\/strong>) is technique including both the method of field observations and technology of processing and field resistivity and IP data interpretation. Its feature is multiple reusing as a source and receiver just the same electrodes position, fixed on a profile line.\r\n

\"Polygonal<\/a><\/p>\r\nSuch approach allows from one hand to work with a modern high-performance instruments, and on the other hand, to apply effective algorithms of modeling and inversion of resistivity<\/strong> and IP<\/strong> data. For interpretation(inversion) of electrical tomography<\/strong> data is used two- and three-dimensional models. It significantly extends the range of electric prospecting solved problems due to sections investigating that are considerably different from \u00abclassic\u00bb horizontal-layered<\/a>.\r\n

\"Results<\/a><\/p>\r\nResolution and thus results quality of electrical tomography<\/strong> is closely connected with the number and density of measurements on the \u00a0site. Their number usually reaches first thousand that is why the question of field measurements efficiency has basic importance and in many aspects defines possibility of practical using of this method. Special instruments with programmed automatic switching of electrodes is applied for reaching of maximum effectiveness of field works.\r\n

\"3D<\/a><\/p>\r\nZondRes2d<\/strong> represents ready solution for resistivity and IP imaging<\/strong>, and solves wide range of problems from mathematical modeling and sensitivity analysis to quality control, \u00a0field data processing and 2D inversion. Convenient interface and variety of data visualization features allow to solve wide range of geological problems with maximum effectiveness.\r\n\r\nZondRes2d<\/strong> uses simple and clear data format which allows easily combining various systems of observation, including different variants of the topography setting up and other additional information.\r\n\r\nThe software works with any (applied in electroprospecting) types of electrodes arrays (two, three and four \u2013 electrodes) or their combinations. \u00a0It’s also support most popular formats AGI, ABEM, MAE-instruments, ARES, Zonge, Res2dInv, Syscal, Sens2dInv.\r\n

\"ERT<\/a><\/p>\r\nImportant stage which precede field measurement is mathematical modeling<\/a> of geoelectric structure of work site. Modeling gives a chance to estimate the level of signal and to make a choice of optimum parameters of the observation system for decision of formulated geological problem. ZondRes2d<\/strong> has great range of tools for mathematical modeling and analysis <\/a>of \u00a0DC\u00a0(direct current) \u00a0and induced polarization fields.\r\n

\"Visualization<\/a><\/p>\r\nAs the general task of the program is inversion of geoelectric parameters, some variants of inverse problem decision are realized in ZondRes2d<\/strong>, basic of them are: smoothing inversion \u2013 to get smooth model and focusing – to get \u00a0piece-smoothed model of geoelectric parameters with depth.\r\n\r\nWhile program was designed special consideration given to a priori data accounting. Because of equivalence of inverse geophysical problems, quality of the obtained results strongly depends on the amount of a priori data\u00a0used. In ZondRes2d<\/strong> there is possibility of weights setting for measurements, fixing and limits making of changing features of different cells, using of a priori model as reference \u00a0in inversion. The robust schemas of noise estimation\u00a0are realized in the software. There is also possibility to import and display results of measurements by other methods and logging \u00a0and\u00a0boreholes <\/a>data that improved quality of results.\r\n

\"Mathematical<\/a><\/p>\r\nBasic features:\r\n