We present a workflow for the improved interpretation of Nile River’s unique dataset implying quantitative water level data from A.D. 622 to 1921 with some breaks. In framework proposed methodology, innovative algorithms are presented (1) filling in missing data, (2) extraction spectral information content completed dataset, and (3) applying statistical pattern recognition using same imputed dataset. first step an inversion-based Fourier transformation method is developed replace reliable...

Wireline logging surveys are routinely used for the reconnaissance and quantitative characterization of multi-mineral hydrocarbon structures. The interpretation well-logging data, however, is quite a challenging task, because conventionally local inversion procedure becomes either an underdetermined or slightly overdetermined problem that may result in poor parameter estimation. In order to determine petrophysical model composed several parameters, such as specific volumes matrix components,...

This paper presents a new algorithm for the inversion-based 1D Fourier transformation. The continuous spectra are assumed as series expansion with scaled Hermite functions square-integrable set of basis functions. coefficients determined by solving an over-determined inverse problem. In order to define quick and easy-to-use formula in calculating Jacobi matrix problem special feature used. It is well-known, that basic eigenfunctions generalized extending its validity Using eigenvalues, given...

The paper presents field results of the data processing method developments based on approximate TAU-transform Time-Domain IP (Induced Polarization) curves. theoretical basis these was published in Part I by Turai and Dobróka (2011).Two ways for estimation type value soil contaminations will be introduced. On first way calculation contamination comes from time constant spectra. is Weighted Amplitude Value (WAV) second we define corrected apparent conductivity contaminated material (σcorr) as...

The paper presents the theoretical basis of data processing method developments based on TAU-transform time-domain IP curves and some approximate solutions using linear system equations, Fourier transform inverse theory.The interpretation ways results field measured will be presented in Part II this (Turai 2011).

The aim of our research was to better understand the spectral characteristics precipitation variability, because through infiltration, this is most important source groundwater recharge. To periodicity rainfalls, we used monthly and annual rainfall data. We examined time records over a 110-year period from two different cities in Carpathian Basin, obtained Hungarian Meteorological Service. With discrete Fourier-transformation (DFT) wavelet series analysis, defined local cycles developed...

Tokaj Mountains, as a large Miocene volcanic region in North-East Hungary, is the homeland of famous wine. The wine can be found on world heritage list UNESCO. Although there were several mineral prospecting activities at Mountains 1960s and 1970s, groundwater resources regional scale have not been revealed yet. water budget flow systems known before complex hydrogeological investigations recently carried out by University Miskolc. shallow being produced some small-scale waterworks to cover...

A number of climatic cycles and teleconnections are known on the Earth. By definition, can have a periodic effect global climate, while influence weather at large distances. At same time, it is overwhelmingly assumed that hydrological cycle permanently intensifying all over world. In this study, we determine quantify some connections among these precipitation data from across Hungary. using cross-correlation cross-spectral analysis, patterns oscillations with different Hungarian areas been...

Abstract An innovative methodology is introduced to study abandoned oil exploration drillings for possible geothermal energy production at a test area in northeast Hungary. evaluation method supported by robust statistical analysis was elaborated provide the future investors with adequate technical and earth-science related information their decision-making processes. All available data of 161 hydrocarbon wells, different physical conditions, were examined based on proposed system about...

P049 A NEW METHOD FOR THE INTERPRETATION OF INDUCED POLARIZATION DATA – TAU-TRANSFORM APPROACH E. TURAI and M. DOBRÓKA University of Miskolc Department Geophysics 3515 Egyetemváros Hungary Summary 1 In the paper TAU-transform method is introduced for determination timeconstant spectrum polarizability curves received by time-domain IP measurements. An easy quick inversion algorithm also presented practical use. Some results interpretation field data collected over Hungarian waste sites are...

Abstract A new series expansion-based method, the Combined Geoelectric Weighted Inversion (CGWI) procedure is presented and tested by using synthetic in-field measured datasets. The method an improved version of (CGI) robustified involving Cauchy-Steiner weights in Iteratively Reweighted Least Squares technique. compared to Fourier 1.5D CGI methods as well broadly applied RES2DINV inversion procedure. field measurements are performed during stone exploration active quarry on south-western...

Összefoglalás. Jelen tanulmányunkban két Duna menti parti szűrésű vízbázis vizsgálatát tűztük ki célul. A Tiszta Ivóvíz: a biztonságos ellátás multidiszciplináris értékelése forrástól fogyasztóig című Nemzeti Kiválósági Program keretében olyan kiemelt fontosságú vízbázist vizsgáltunk, amelyek meghatározó szerepet játszanak Fővárosi Vízművek ellátási területén, Budapesten. Választásunk Szentendrei-szigeten található surányi vízbázisra, valamint Csepel-szigeten ráckevei vízbázisra esett....

Cognitive sciences related to hydrogeological studies represent interdisciplinary approaches using computer science, artificial intelligence, and anthropology. Several mathematical methods of machine learning can be fruitfully used in the understanding groundwater systems structures such as evolutionary computation, neural networks, global optimization methods. Non-hierarchical cluster analysis unsupervised tool is frequently applied identification water-bearing formations, rock typing...

From the 1950s induced polarization (IP) method became well known as an effective geophysical of ore exploration in literature [1–3]. It was applied successfully both time-domain (TDIP) and frequency-domain (FDIP) measurements, because metallic phenomenon can occur on surface showing conductive (free electronic) electric conduction – a dissociated ionic environment. This type causes measurable IP anomalies. On other hand, content is not only factor resulting polarizability medium:...

ABSTRACT The pressure dependence of the quality factor acoustic waves is an extensively explored rock physical problem. To reasonably interpret laboratory measurements, a petrophysical model required which provides explanation nonlinear seismic factor. In this paper we highlight important features wave attenuation and propagation under varying contribute to creating model. starting from idea that microcracks are opened closed pressure. Within confines model, differential equations set up...

The paper presents the opportunities of archaeological applications geoelectric geophysical methods. electrical conductivity properties buried objects (wall relics, roads, channels, graves, metal objects, etc.) measurably differ from soils and rocks covering objects. So these are detectable with measurements performed on surface Earth.The outlines relation between parameters individual medium them; it supports adaptability methods presentation results field measurements.

This paper presents some interpretation results of induced polarization (IP) data using TAU-transformation time-domain IP curves measured in the field [1]. Two methods for estimation type and level soil contamination polarizable ore concentration have been introduced time constant analysis. The theoretical basis [2–3] are presented current volume this journal [4]. TAU-transform method was applied first a TEMPUS project [5] it has also tested above several contaminated areas within Hungary...

Abstract The paper presents the latest results of Monte Carlo inversion IP data in areas water base protection and ore exploration. method determining time constant spectrum using parameters characterizing degree environmental contaminations deposition are presented. Among field applications Hungary, investigation ionic pollution Ráckeve characterization Felsőtelekes waste dump Rudabánya iron mine In addition to these, area a gold Mongolia multi-electrode pole-dipole method.

P053 APPROXIMATE JOINT INVERSION OF MT AND DC GEO-ELECTRIC DATA IN CASE 2D STRUCTURES M. DOBRÓKA 1 KIS 2 and E. TURAI Summary Using the Generalized Series Expansion method an inversion algorithm is proposed for processing of data measured above structures. In approximate forward modeling applied with parameters locally 1D model. It shown that GSE gives highly acceptable estimate laterally changing Introduction geoelectric exploration earth structures magnetotelluric methods are traditionally applied.