Special Issue "Advances in Applied Geophysics"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Earth Sciences and Geography".

Deadline for manuscript submissions: 31 March 2021.

Special Issue Editors

Prof. Dr. Filippos Vallianatos
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Guest Editor
Professor of Geophysics-Applied Geophysics, Department of Geophysics-Geothermics, Faculty of Geology and Geoenvironment, School of Sciences National and Kapodistrian University of Athens, Panepistimiopolis, Zografos, Athens 157 84, Greece
Interests: geophysics; earth physics; seismology; applied geophysics
Special Issues and Collections in MDPI journals
Dr. Vassilis Sakkas

Co-Guest Editor
Department of Geophysics-Geothermics, Faculty of Geology and Geoenvironment, School of Sciences National and Kapodistrian University of Athens, Panepistimiopolis, Zografos, Athens 157 84, Greece
Interests: geophysics; space applications in geophysics; satellite geodesy (GNSS); satellite interferometry

Special Issue Information

Dear Colleagues,

In the context of the increasing demand for knowledge of the physical properties of the Earth’s crust with geophysical measurements, the development of new approaches for the characterization of the Earth’s crust is a crucial issue.

The focus of this Special Issue of applied sciences is seismic and electromagnetic exploration, magnetotellurics, archeogeophysics, petrophysics, inversion techniques, satellite techniques to study the Earth’s surface, and instrument development, as applied to support our image of the Earth’s crust. In addition, during the two last decades, the use of geophysical techniques for addressing environmental, engineering, and hydrogeological issues has developed significantly, since geophysical prospection can provide additional and fine information about the underground medium.

This Special Issue aims to bring together the most recent works on the application of geophysical methods for the imaging of the Earth’s crust along with the possible environmental, engineering, and hydrogeological applications, for the fine characterization of the near surface structure.

Without being exhaustive, the concerned methods are seismics, electromagnetics (e.g., magnetotellurics, time–domain electromagnetics, radar), active electrical methods (e.g., electrical resistivity tomography and induced polarization) or passive electrical methods (spontaneous potential), nuclear magnetic resonance, and even microgravimetry. Contributions focusing on the petrophysical laws, along with the application of modern satellite technique, such as satellite geodesy, interferometry, gravity etc., which may be combined with classical geophysical and seismological methods for the solution of geophysical problems are also welcome.

Prof. Dr. Filippos Vallianatos
Dr. Vassilis Sakkas
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • geophysical imaging
  • earth’s crust
  • seismics
  • geoelectromagnetism
  • electrical methods
  • environmental and engineering geophysics
  • satellite techniques
  • geodesy
  • interferometry
  • gravity

Published Papers (1 paper)

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Research

Open AccessArticle
Seismic AVOA Inversion for Weak Anisotropy Parameters and Fracture Density in a Monoclinic Medium
Appl. Sci. 2020, 10(15), 5136; https://doi.org/10.3390/app10155136 - 26 Jul 2020
Abstract
In shale gas development, fracture density is an important lithologic parameter to properly characterize reservoir reconstruction, establish a fracturing scheme, and calculate porosity and permeability. The traditional methods usually assume that the fracture reservoir is one set of aligned vertical fractures, embedded in [...] Read more.
In shale gas development, fracture density is an important lithologic parameter to properly characterize reservoir reconstruction, establish a fracturing scheme, and calculate porosity and permeability. The traditional methods usually assume that the fracture reservoir is one set of aligned vertical fractures, embedded in an isotropic background, and estimate some alternative parameters associated with fracture density. Thus, the low accuracy caused by this simplified model, and the intrinsic errors caused by the indirect substitution, affect the estimation of fracture density. In this paper, the fractured rock of monoclinic symmetry assumes two non-orthogonal vertical fracture sets, embedded in a transversely isotropic background. Firstly, assuming that the fracture radius, width, and orientation are known, a new form of P-wave reflection coefficient, in terms of weak anisotropy (WA) parameters and fracture density, was obtained by substituting the stiffness coefficients of vertical transverse isotropic (VTI) background, normal, and tangential fracture compliances. Then, a linear amplitude versus offset and azimuth (AVOA) inversion method, of WA parameters and fracture density, was constructed by using Bayesian theory. Tests on synthetic data showed that WA parameters, and fracture density, are stably estimated in the case of seismic data containing a moderate noise, which can provide a reliable tool in fracture prediction. Full article
(This article belongs to the Special Issue Advances in Applied Geophysics)
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