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Journal articles on the topic 'Geophysics'
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ΠΑΠΑΔΟΠΟΥΛΟΣ, ΤΑΞΙΑΡΧΗΣ. "The importance of using geophysical methods in shallow investigations for natural or artificial structures." Bulletin of the Geological Society of Greece 34, no. 6 (January 1, 2002): 2219. http://dx.doi.org/10.12681/bgsg.16864.
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In this review paper it is presented the usefulness and importance of using geophysical methods in shallow subsurface investigations. It is given emphasis on problems that can be handled by the engineering and environmental geophysics which are branches of applied geophysics. First, the geophysical methods that are mainly used are referred, their efficiency, as well as the potentialities and restrictions that they present. Next, some basic topics are defined that the geophysicist has to take into account in order to end up with positive results. Finally, the advantages and disadvantages of the most used geophysical methods are referred and some examples are given from the experience obtained by carrying out geophysical investigations in Greece
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Harvey, Terry. "Minerals geophysics: Geophysical advice." Preview 2019, no. 203 (November 2, 2019): 47. http://dx.doi.org/10.1080/14432471.2019.1694176.
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Pennington, Wayne D. "Reservoir geophysics." GEOPHYSICS 66, no. 1 (January 2001): 25–30. http://dx.doi.org/10.1190/1.1444903.
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The concept of petroleum reservoir geophysics is relatively new. In the past, the role of geophysics was largely confined to exploration and, to a lesser degree, the development of discoveries. As cost‐efficiency has taken over as a driving force in the economics of the oil and gas industry and as major assets near abandonment, geophysics has increasingly been recognized as a tool for improving the bottom line closer to the wellhead. The reliability of geophysical surveys, particularly seismic, has greatly reduced the risk associated with drilling wells in existing fields, and the ability to add geophysical constraints to statistical models has provided a mechanism for directly delivering geophysical results to the reservoir engineer.
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Peltoniemi, Markku. "Impact factors, citations, and GEOPHYSICS." GEOPHYSICS 70, no. 2 (March 2005): 3MA—17MA. http://dx.doi.org/10.1190/1.1897303.
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This review assesses the contributions and impact that GEOPHYSICS journal has made to both the theory and the applications of exploration geophysics during its publication life span. The contributions are evaluated first on the basis of Journal Citation Reports data, which summarize information available since 1975 about the impact factor of our journal. The impact factor for GEOPHYSICS in 1975–2002 has ranged between 1.461 and 0.591, with an average of 0.924 and with a relative ranking between 16 and 45 for all journals in its category. The journal receiving the highest impact factor for the period 2000–2003 in the “Geochemistry and Geophysics” category is Reviews of Geophysics, with an average impact factor of 7.787 and which ranged between 9.226 and 6.083. A second and important criterion is the frequency with which individual papers published in GEOPHYSICS have been cited elsewhere. This information is available for the entire publication history of GEOPHYSICS and supports the choices made for the early classic papers. These were listed in both the Silver and the Golden Anniversary issues of GEOPHYSICS. In August 2004, the five most-cited papers in GEOPHYSICS published in the time period 1936 to February 2003 are Thomsen (1986) with 423 citations, Constable et al. (1987) with 380 citations, Cagniard (1953) with 354 citations, Sen et al. (1981) with 313 citations, and Stolt (1978) with 307 citations. Fifteen more papers exceed a threshold value of 200 citations. During 2000–2002, GEOPHYSICS, Geophysical Prospecting, Geophysical Journal International, and Journal of Applied Geophysics were the four journals with the highest number of citations of papers published in GEOPHYSICS. In the same 2000–2002 period, those journals in which papers published in GEOPHYSICS are cited most are GEOPHYSICS, Geophysical Prospecting, Geophysical Journal International, and Journal of Geophysical Research. During 1985, the total number of citations in all journals in the Science Citation Index database to papers published in GEOPHYSICS was 2657. By 2002, this same citation count for GEOPHYSICS had increased to 4784.
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Doyle, H. "Geophysics in Australia." Earth Sciences History 6, no. 2 (January 1, 1987): 178–204. http://dx.doi.org/10.17704/eshi.6.2.386k258604262836.
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Geophysical observations began in Australia with the arrival of the first European explorers in the late 18th Century and there have been strong connections with European and North American geophysics ever since, both in academic and exploration geophysics. Government institutions, particularly the Bureau of Mineral Resources, have played a large part in the development of the subject in Australia, certainly more so than in North America. Academic research in geophysics has been dominated by that at the Australian National University. Palaeomagnetic research at the Australian National University has been particularly valuable, showing the large northerly drift of the continent in Cainozoic times as part of the Australia-India plate. Heat flow, electrical conductivity and upper mantle seismic velocities have been shown to be significantly different between Phanerozoic eastern Australia and the Western Shield. Geophysical exploration for metals and hydrocarbons began in the 1920s but did not develop strongly until the 1950s and 1960s. There are relatively few Australian geophysical companies and contracting companies, and instrumentation from North America and Europe have played an important role in exploration. Exploration for metals has been hampered by the deep weathered mantle over much of the continent, but the development of pulsed (transient) electromagnetic methods, including an Australian instrument (SIROTEM), has improved the situation. Geophysics has been important in several discoveries of ore-bodies. In hydrocarbon exploration the introduction of common depth point stacking and digital recording and processing in reflection surveys have played an important part in the discovery of offshore and onshore fields, as in other countries.
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Herman, Gérard C. "Annual Meeting Selection Papers." GEOPHYSICS 70, no. 4 (July 2005): 3JA. http://dx.doi.org/10.1190/1.2035089.
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Most authors of GEOPHYSICS papers are from universities or government research institutions. That does not mean no interesting research is being done by the oil or geophysical industry. In the current competitive age, it is apparently difficult for geophysicists from the industry to find time to write elaborate papers for GEOPHYSICS. Therefore, the GEOPHYSICS editors have decided to encourage authors from the oil and geophysical industry to submit high-quality papers. SEG Editor Gerard T. Schuster asked me to develop a shorter route for such papers that have at least one author from the industry.
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Singh, Rahul Kumar, Nirlipta Priyadarshini Nayak, Tapan Behl, Rashmi Arora, Md Khalid Anwer, Monica Gulati, Simona Gabriela Bungau, and Mihaela Cristina Brisc. "Exploring the Intersection of Geophysics and Diagnostic Imaging in the Health Sciences." Diagnostics 14, no. 2 (January 8, 2024): 139. http://dx.doi.org/10.3390/diagnostics14020139.
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To develop diagnostic imaging approaches, this paper emphasizes the transformational potential of merging geophysics with health sciences. Diagnostic imaging technology improvements have transformed the health sciences by enabling earlier and more precise disease identification, individualized therapy, and improved patient care. This review article examines the connection between geophysics and diagnostic imaging in the field of health sciences. Geophysics, which is typically used to explore Earth’s subsurface, has provided new uses of its methodology in the medical field, providing innovative solutions to pressing medical problems. The article examines the different geophysical techniques like electrical imaging, seismic imaging, and geophysics and their corresponding imaging techniques used in health sciences like tomography, magnetic resonance imaging, ultrasound imaging, etc. The examination includes the description, similarities, differences, and challenges associated with these techniques and how modified geophysical techniques can be used in imaging methods in health sciences. Examining the progression of each method from geophysics to medical imaging and its contributions to illness diagnosis, treatment planning, and monitoring are highlighted. Also, the utilization of geophysical data analysis techniques like signal processing and inversion techniques in image processing in health sciences has been briefly explained, along with different mathematical and computational tools in geophysics and how they can be implemented for image processing in health sciences. The key findings include the development of machine learning and artificial intelligence in geophysics-driven medical imaging, demonstrating the revolutionary effects of data-driven methods on precision, speed, and predictive modeling.
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Lumley, David. "President's Page." Leading Edge 39, no. 3 (March 2020): 158–60. http://dx.doi.org/10.1190/tle39030158.1.
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These days, I am thinking a lot about geophysics and sustainability — sustainability of our applied geophysics discipline and our collective expertise; sustainability of our geophysics educational programs in universities and professional organizations; sustainability of our investments in geophysical research and development of amazing new technologies; sustainability of exciting and rewarding career paths and employment opportunities in geophysics; sustainability of our global human society and the role of geophysics in providing natural resources while protecting the environment; and sustainability of our professional society, SEG, in terms of its mission, membership, programs, benefits, and services.
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Spies, Brian R. "The effectiveness of journals in exploration geophysics." GEOPHYSICS 56, no. 6 (June 1991): 844–58. http://dx.doi.org/10.1190/1.1443102.
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A detailed citation analysis was conducted for fourteen major journals dealing with exploration geophysics, to judge their cost‐effectiveness and impact. The analysis was for papers published in 1984, so that papers had approximately five years of visibility at the time the citation analysis was conducted. In addition, a study was performed for Geophysics for the years 1980 to 1988, to assess the influence of the length of time a paper was in the literature. The leading journal, in terms of number of citations, was the Journal of Geophysical Research, which received an average of 17.4 citations per paper, followed by the Geophysical Journal of the Royal Astronomical Society (8.6) and Geophysics (5.4). Several journals average less than 1 citation per paper. For Geophysics, the average paper receives an extra 1.2 citations per year over the nine years studied. The percentage of nil citations decreases from 35 percent after one year, to 8 percent after 9 years. Four percent of papers receive 20 percent of all citations; these are the classic papers of exploration geophysics. Short notes, on average, receive half the number of citations as full papers. Self‐citations, which account for approximately one in five citations, do not appear to significantly affect the importance or relevance of a paper. When examined in terms of cost‐effectiveness, SEG publications rate very well. Geophysics and SEG Expanded Abstracts have the lowest cost per 1000 characters of all the journals studied. In terms of the number of citations per unit cost, Geophysics is more than twice as cost‐effective than its nearest neighbor, the Journal of Geophysical Research. The results also confirm those of earlier studies, that commercial journals are not as cost‐effective as those published by not‐for‐profit professional societies.
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HOWARTH, RICHARD J. "ETYMOLOGY IN THE EARTH SCIENCES: FROM ‘GEOLOGIA' TO ‘GEOSCIENCE’." Earth Sciences History 39, no. 1 (January 1, 2020): 1–27. http://dx.doi.org/10.17704/1944-6187-39.1.1.
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The origin and usage through time of geologia, geognosy, geogony, oryctognosy, geology and geophysics, as characterised by their frequency of occurrence in the Google Books Ngram Corpus, is discussed. The English, French, German, Italian and Spanish corpuses used in this study have been normalised over the same timespan using the average frequencies of occurrence of the same set of ‘neutral’ words in each language (as advocated by Younes and Reips 2019). Use of the term geology is found to predate publication of James Hutton's Theory of the Earth in 1795 by about 100 years; geognosy, oryctognosy and geogony, much less commonly used, became established in the 1780s and began to fall out of use around 1820. The terms geologist, and geognost follow a similar pattern. The emergence of geophysics is a less familiar field: While the phrases physics of the Earth and physical geography can both be traced back to the early 1700s, geophysics only began to be used in the early 1800s and did not really become common until about 1860; geophysicist becomes common in German after 1860, but more generally after 1880. The first geophysics-related publications were bulletins from magnetic and seismic observatories and its first dedicated journal, Beiträge zur Geophysik, began publication in 1887, eighty years after the formation of The Geological Society of London. The tems earth science and geoscience, popular today, have steadily increased in their usage since being introduced in the 1880s and 1930s respectively.
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Behura, Jyoti. "Geophysics Bright Spots." Leading Edge 39, no. 4 (April 2020): 284–85. http://dx.doi.org/10.1190/tle39040284.1.
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Welcome to a new collection of Geophysics Bright Spots. Below is a list of research that the editors found interesting in the latest issue of Geophysics. Although there are only two recommendations, there are more articles in the issue that present wonderful ideas and analysis. For example, one article that I found to be a great read is “Imaging of a fluid injection process using geophysical data — A didactic example” by Commer et al. in which the authors present an approach to image hydrologic properties that determine subsurface changes resulting from fluid injection. If that topic, or either of the topics presented in the following, pique your interest, please read the full Geophysics article.
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Capello, Maria A., Anna Shaughnessy, and Emer Caslin. "The Geophysical Sustainability Atlas: Mapping geophysics to the UN Sustainable Development Goals." Leading Edge 40, no. 1 (January 2021): 10–24. http://dx.doi.org/10.1190/tle40010010.1.
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Geophysics is enhanced if the value it adds to society, economic systems, and the environment is assessed, understood, and communicated. A clear value proposition can inspire new generations of scientists to pursue careers in geophysics and motivate current geophysicists to expand their activities and utilize their skills in ways that could enable their long-term employability or entrepreneurship. One way to position geophysics and geophysicists as value creators is to map geophysical applications and practices to the 17 Sustainable Development Goals (SDGs) adopted by the United Nations in 2015. A Geophysical Sustainability Atlas was developed to illustrate how geophysics contributes to each of the SDGs and to provide examples of specific applications and collaboration strategies. The atlas aims to facilitate an understanding of the value geophysics brings toward achieving each SDG, providing geophysicists and stakeholders with a sense of being frontline contributors in the pursuit of these objectives and, at the same time, providing a visualization of current and future opportunities related to the sustainability of our world and our profession.
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Walter, Callum, Timothy S. de Smet, and Heather Bedle. "Introduction to this special section: Drone geophysics." Leading Edge 42, no. 2 (February 2023): 88. http://dx.doi.org/10.1190/tle42020088.1.
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Technological advancements in geophysical sensors and sensor platforms over the past decade have given rise to the rapidly growing and innovative field of drone-based geophysics. As improvements in reliability, payload capacity, coverage capability, resolution, data quality, cost, and personnel safety continue to be realized, the widespread application of drone geophysics marks an exciting new era of innovation in near-surface geophysics. Since July 2017, when the first special section on drone geophysics was published in The Leading Edge, we have witnessed the rapid development and expansion of this applied-geophysics subfield to a point where there are now entire annual conferences, such as the SEG Summit on Drone Geophysics founded in 2020, dedicated to its continued advancement. Increasingly, it has become clear that drone geophysics is here to stay and is one of the most influential, widespread, and game-changing technology advancements in applied geophysics in recent years.
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Ruslan Malikov, Gulam Babayev, Ruslan Malikov, Gulam Babayev. "THE ROLE OF ARTIFICIAL INTELLIGENCE IN GEOSCIENCES: CONCEPTUAL REVIEW." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 43, no. 08-01 (June 14, 2024): 500–512. http://dx.doi.org/10.36962/pahtei4308012024-56.
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Geophysics is the branch of Earth science that applies the principles and methods of physics to the study of the Earth. Recent advances in artificial intelligence (AI), particularly machine learning (ML) and deep learning (DL), are transforming the field by providing powerful tools for data processing, analysis, and prediction. Traditional geophysical methods are often challenged by data complexity, non-unique solutions, and human interpretation limitations. AI algorithms trained on large datasets can identify intricate patterns and relationships within the data, leading to improved accuracy and efficiency. In this review, we provide an overview of the development of AI in the geophysical field such as seismic exploration. Specific examples illustrate the application of AI in geophysical workflows, highlighting the results achieved in areas such as seismic data processing, reservoir characterization, and automated seismic interpretation. Keywords: geophysics, seismic prospecting, exploration geophysics, artificial intelligence, machine learning, deep learning
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Capello, Maria A., Blair Schneider, and Ellie P. Ardakani. "Full Spectrum." Leading Edge 37, no. 9 (September 2018): 702–4. http://dx.doi.org/10.1190/tle37090702.1.
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SEG has propelled geophysics as a pure and applied science through decades of efforts to facilitate successful networking and collaboration among professionals in all segments of geophysics, but particularly in oil and gas. Through best-in-class programs, committees, technical events focused on specific topics, an array of publications that include The Leading Edge and Geophysics, online-learning resources, and activities for students, our Society has pioneered the positioning of geophysics as a primordial pillar in the exploration for energy resources. SEG has also been fundamental in envisioning integration strategies grounded on geophysical methods for the optimization of exploitation schemes and pivotal in highlighting new developments and technologies in applied geophysics. The progress of geophysics owes much to the collaborative efforts and networks created by SEG connecting the top geophysicists in the energy sector.
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Sheriff, Robert E. "History of geophysical technology through advertisements in GEOPHYSICS." GEOPHYSICS 50, no. 12 (December 1985): 2299–410. http://dx.doi.org/10.1190/1.1441872.
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Exploration geophysics has been largely a free‐enterprise venture and new developments have been “sold” through advertisements in the journal Geophysics. Thus, a review of advertisements provides an eclectic history of geophysics. The following is the view obtained from advertisements alone. The dates cited are usually when ads for innovations first appeared. New features often had been applied earlier, before they were advertised.
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KASIAN, Antonina. "POWERFUL GEOPHYSICAL INDUSTRY AS THE BASIS OF ENERGY INDEPENDENCE OF UKRAINE." Ukrainian Geologist, no. 1-2(44-45) (June 30, 2021): 45–50. http://dx.doi.org/10.53087/ug.2021.1-2(44-45).238872.
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In the oil and gas industry, the geophysics bears the most knowledge-intensive and high-tech activity. The results of geophysical studies underlie the search, exploration and development of oil and gas fields. It is impossible to effectively drill, operate and repair wells without it. Success in the development of technology and technology in geophysics depends on the level of academic and industrial science, the effectiveness of the education system, and the intellectual training of personnel. The paper provides a historical insight into the era of geophysical research from the beginning of the last century to the present day. The current state and prospects of further development of the geophysical industry as the basis of Ukraine’s energy independence are analyzed. The main reasons for the negative state of affairs in Ukrainian geophysics are as follows: loss of professionalism, lack of high-quality basic education, lack of funding and short-sighted decision-making.
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Smith, Robert J. "Geophysics in Australian mineral exploration." GEOPHYSICS 50, no. 12 (December 1985): 2637–65. http://dx.doi.org/10.1190/1.1441888.
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I review a variety of recent case histories illustrating the application of geophysics in mineral exploration in Australia. Geophysics is now an integral part of most programs. Examples are given of contributions by geophysics to all stages of mineral exploration, from regional area selection through to mine planning and development. Specific case histories summarized are as follows: (a) Olympic Dam copper‐uranium‐gold deposit, discovered using a conceptual genetic model and regional geophysical data; (b) Ellendale diamondiferous kimberlites, illustrating the use of low level, detailed airborne magnetics; (c) Ranger uranium orebodies, discovered by detailed airborne radiometric surveys; (d) geologic mapping near Mary Kathleen with color displays of airborne radiometric data; (e) mapping of lignite in basement depressions of the Bremer Basin, near Esperance, with INPUT; (f) White Leads, a lead‐zinc sulfide deposit discovered with induced polarization (IP) and TEM, near Broken Hill; (g) Hellyer, a lead‐zinc‐silver‐gold deposit discovered with UTEM; (h) application of geophysical logging near Kanmantoo; (i) Cowla Peak, a subbituminous steaming coal deposit mapped with ground TEM; and (j) Cook Colliery, where high‐resolution seismic reflection methods have successfully increased the workable reserves.
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Donati, Jamieson C., and Apostolos Sarris. "Geophysical survey in Greece: recent developments, discoveries and future prospects." Archaeological Reports 62 (November 2016): 63–76. http://dx.doi.org/10.1017/s0570608416000065.
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Geophysics has emerged as a significant and primary tool of archaeological research in Greece. It is no longer marginalized to a supporting role for excavations and pedestrian surveying, but has developed into a fundamental method of investigating layers of cultural heritage in its own right. This can be explained varyingly, from the increasingly holistic nature of archaeological fieldwork, to a broader appreciation of the diverse applications of geophysics to characterize historical contexts, the unique range of site assessment offered by geophysics and the capacity of geophysics to explore the subsurface in challenging conditions. Technology too plays a vital role. New generations of equipment have the ability to map archaeological features in high resolution, in rapid sequence and oftentimes in 3D. Geophysics along with other non-invasive methods, like satellite and airborne remote sensing, has also gained wider traction because of concerns about the costs, impacts and time horizons of traditional fieldwork practices. This brief report highlights some of the recent developments and applications of geophysical survey in Greece. It is not meant to be an inclusive account or an evaluation of each geophysical technique; instead, it emphasizes current trends in this important and expanding field of research and touches upon its future prospects in the country.
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Loginov, D. S. "Cartographic support of geophysical research: current situation and prospects." Geodesy and Cartography 950, no. 8 (September 20, 2019): 32–44. http://dx.doi.org/10.22389/0016-7126-2019-950-8-32-44.
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The features of cartographic supporting geophysical research at the present stage of cartography and exploration geophysics development are discussed. The current situation and prospects of using GIS and web technologies are characterized basing on the analysis of scientific and industrial experience of domestic and foreign public as well as private geological and geophysical organizations. The analysis was performed at key stages of geophysical research, including the analysis of geological and geophysical studying the work area, designing geophysical works, field works, processing and interpretation of geophysical observations results, compilation of reporting materials, as well as the accumulation and storage of information. The examples of modern geoportals that provide quick access to geological and geophysical infor-mation in various forms of presentation, including cartographic data, are presented in article. The conclusions and recommendations were formulated according to results of the study. They are aimed at improving the efficiency of cartographic supporting geophysical research and the development of inter-sectoral interaction between cartography and geophysics.
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Dugan, Brandon, Sebastian Krastel, Laurie Whitesell, Christoph Böttner, Ulrich Harms, Judith Elger, and Gareth Crutchley. "Workshop Review: Joint DGG-SEG Scientific Drilling Workshop a success." Leading Edge 40, no. 11 (November 2021): 837–38. http://dx.doi.org/10.1190/tle40110837.1.
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SEG and the German Geophysical Society (DGG) held their first joint workshop in early March at DGG's 2021 Annual Meeting. The workshop was part of a new cooperative aim between DGG and SEG to promote engagement between the societies, to foster growth in geophysics, and to expand the community of scientists and engineers tackling important geophysical problems. The 2021 workshop theme, “Scientific Drilling,” was chosen because scientific drilling provides access to rocks and fluids in the subsurface that are essential for ground truthing interpretations from geophysical data and geologic interpretation, for providing samples and in-situ data for detailed characterization, and for providing inputs to models. Consequently, the workshop aimed to attract interest across many subfields of geophysics.
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Darul, Achmad, Dasapta Erwin Irawan, and Eleonora Agustine. "Geophysics for the environment in Indonesia." F1000Research 13 (February 22, 2024): 131. http://dx.doi.org/10.12688/f1000research.145869.1.
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This paper explores the hidden potential of geophysics for the environment, focusing on subsurface mapping activities in Indonesia. Geophysics plays a crucial role in understanding the Earth’s physical characteristics and addressing environmental challenges. It is particularly relevant in water-related environmental problems, such as groundwater contamination and infiltration monitoring. Geophysics is also used to detect metals in fertile soils and plants, providing insights into agricultural practices and potential health risks. However, applying geophysics in urban areas poses challenges due to physical obstructions, cultural noise, limited workspace, permits, and safety concerns. This article emphasizes the integration of geophysics with environmental studies, the need for further research on water-related environmental problems and metal detection, and the development of techniques tailored for urban environments. It suggests focusing on understanding the specific environmental challenges in Indonesia and leveraging advancements in technology for more accurate and efficient geophysical investigations. In the Indonesian context, geophysics has diverse applications, including energy exploration, seismology, and oceanography. However, it has not been properly utilized in the field of environmental studies, particularly in urban areas.
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Sander-Olhoeft, Morgan, Laura Quigley, and Laurie Whitesell. "Conference Preview: 2021 Summit on Drone Geophysics set for 2 to 5 November." Leading Edge 40, no. 10 (October 2021): 778. http://dx.doi.org/10.1190/tle40100778.1.
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Postconvention workshops focused on drones, unmanned airborne systems (UASs), and unmanned aerial vehicles (UAVs) have occurred previously at the SEG Annual Meeting. In 2017, the SEG Near-Surface Geophysics Technical Section conducted the first such event called Drones Applied to Geophysical Mapping. This first event ushered in the topic for future Annual Meetings. In 2018, the postconvention event was called Advances in Unmanned Airborne Systems Geophysics. Both events were hugely successful and helped set the stage for the standalone reoccurring virtual Summit on Drone Geophysics.
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FOMENKO, N. E. "ON METHODOLOGY OF TEACHING GEOPHYSICAL COURSES AT THE INSTITUTE OF EARTH SCIENCES, SFU." Proceedings of higher educational establishments. Geology and Exploration, no. 4 (August 16, 2018): 68–76. http://dx.doi.org/10.32454/0016-7762-2018-4-68-76.
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The results of the works undertaken by students on practical classes and during educational practices have been discussed. Causes and difficulties in student learning of exploratory geophysics have been analyzed. It has been found a deficiency in practical skills of future engineers relevant to the work with geophysical facilities and equipment and further mental processing of the measured parameters of natural and artificial geophysical fields. A brief description has been given for improvements in the methodology of teaching geophysics to future geology and geoecology engineers via inclusion of practical works with geophysical equipment on the test site on the Zorge Street with tasks linked to engineering-geological cross-section study and mapping underground infrastructure on the given area. There are some other examples of student involvement in solution of geophysical tasks on the objects of educational geophysical practices with subsequent detailed geological and geophysical interpretation.
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Ozcep, F., and T. Ozcep. "Notes on the history of geophysics in the Ottoman Empire." History of Geo- and Space Sciences 5, no. 2 (September 5, 2014): 163–74. http://dx.doi.org/10.5194/hgss-5-163-2014.
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Abstract. In Anatolia, the history of geophysical sciences may go back to antiquity (600 BC), namely the period when Thales lived in Magnesia (Asia Minor). In the modern sense, geophysics started with geomagnetic works in the 1600s. The period between 1600 and 1800 includes the measurement of magnetic declination, inclination and magnetic field strength. Before these years, there is a little information, such as how to use a compass, in the Kitab-i Bahriye (the Book of Navigation) of Piri Reis, who is one of the most important mariners of the Ottoman Empire. However, this may not mean that magnetic declination was generally understood. The first scientific book relating to geophysics is the book Fuyuzat-i Miknatissiye that was translated by Ibrahim Müteferrika and printed in 1731. The subject of this book is earth's magnetism. There is also information concerning geophysics in the book Cihannuma (Universal Geography) that was written by Katip Celebi and in the book Marifetname written by Ibrahim Hakki Erzurumlu, but these books are only partly geophysical books. In Istanbul the year 1868 is one of the most important for geophysical sciences because an observatory called Rasathane-i Amire was installed in the Pera region of this city. At this observatory the first systematic geophysical observations such as meteorological, seismological and even gravimetrical were made. There have been meteorological records in Anatolia since 1839. These are records of atmospheric temperature, pressure and humidity. In the Ottoman Empire, the science of geophysics is considered as one of the natural sciences along with astronomy, mineralogy, geology, etc., and these sciences are included as a part of physics and chemistry.
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Lines, Larry, John P. Castagna, and Sven Treitel. "Geophysics in the new millennium." GEOPHYSICS 66, no. 1 (January 2001): 14. http://dx.doi.org/10.1190/1.1444890.
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Upon entering the twenty‐first century, we see wide‐ranging changes in geophysics. As of this writing, quality and utility of geophysical data continues a trend of inexorable improvement punctuated by individual quantum steps (such as the 3-D seismic revolution). To a large extent, this improvement has been accomplished on the coattails of advances in computing and related disciplines. These advances have allowed cost‐effective implementation of methods that exploit our steadily increasing understanding of geophysical theory in ever increasingly realistic earth models. As a result, geophysical methods can now provide clearer images at greater distances with bette resolution and signal‐to‐noise ratio than ever before.
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Bárta, J., J. Jirků, and T. Belov. "GEOPHYSICS AND BUILDING DIAGNOSTICS, THEIR POSSIBILITIES AND LIMITS." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLVI-5/W1-2022 (February 3, 2022): 31–40. http://dx.doi.org/10.5194/isprs-archives-xlvi-5-w1-2022-31-2022.
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Abstract. Geophysical methods and building diagnostics are non-destructive measurements which can inform about quality of rocks, hydrology conditions or artificial objects (tunnels, foundation of buildings, constructions etc.). Such methods are in the principle non-destructive without impact on environment or population. Hence these methods are mostly cheaper and more acceptable than drilling, travelling with heavy machines etc. Geophysical methods study physical fields and are divided as follows: Geoelectrical methods, Seismics, Gravimetry, Magnetometry, Thermometry, Radiometry. The geophysical measurements can be carried out on a surface of terrain, in boreholes (well logging) or in the air (airborne geophysics). The non-destructive building diagnostics use mostly measurements relating to the seismic, acoustic or nuclear properties. The time-lapse monitoring of administered objects by non-destructive methods can bring beneficial and fundamental source of information about actual conditions of managed objects. Presented non-destructive measurements use sophisticated technologies and respected geophysical companies follow international and domestic standards and legislation. Geophysicists are organized mainly in international associations such as EAGE (European Association of Geoscientists and Engineers) or SEG (Society of Exploration Geophysics). This paper presents typical examples of application of non-destructive methods to our practice.
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Heagy, Lindsey J., Seogi Kang, Joseph Capriotti, Dominique Fournier, Rowan Cockett, and Douglas W. Oldenburg. "Opportunities for open-source software to accelerate research in applied geophysics." Leading Edge 43, no. 2 (February 2024): 84–94. http://dx.doi.org/10.1190/tle43020084.1.
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The potential for open-source software and open-science practices to accelerate research in applied geophysics and thereby contribute to solutions of geoscientific problems impacting society is considered. We provide context on the definition of open source and give a brief history of open-source software in applied geophysics. Drawing from our experience on the SimPEG project, which develops software for simulation and inversion of geophysical data, we provide two examples where research was accelerated because of open-source software. These include the reuse of regularization methods for different geophysical problems (magnetics and time-domain electromagnetics) and the combination of multiple geophysical data types in joint inversions. We also provide an example where research code was repurposed for education and humanitarian projects. Each of these examples was made possible because of the availability of code and the practices adopted by the community of collaborators involved in the project. We conclude with our perspective on how practices adopted by open-source communities that enable collaboration among researchers with different backgrounds, skills, and interests can be applied more broadly in research. This will ultimately increase the use and effectiveness of geophysics in helping solve applied problems.
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Gunawan, Indra, Zulfakriza, Andri Hendriyana, Eko Januari Wahyudi, and R. Mohammad Rachmat Sule. "The 4th Southeast Asian Conference on Geophysics (SEACG) 2022: Great Challenges and Opportunities of Geophysics Today and Future." IOP Conference Series: Earth and Environmental Science 1227, no. 1 (August 1, 2023): 011001. http://dx.doi.org/10.1088/1755-1315/1227/1/011001.
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The Southeast Asian Conference on Geophysics (SEACG) is a biannual event held by the Geophysical Engineering Department, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung (ITB), Indonesia. The SEACG has been successfully conducted since 2016, and several selected papers have been published in the IOP Conference Series: Earth and Environmental Science. The first (2016) and second (2018) conferences were held offline in Bali, Indonesia, while the third conference (2020) was held virtually due to the Covid19 pandemic. Along with the end of the Covid19 pandemic, the current event (2022) is being run as a hybrid conference (physical and virtual), live from Bandung, Indonesia. The conference theme of the SEACG 2022 is “Great Challenges and Opportunities of Geophysics Today and Future.” The program lasts two days, from August 9, 2022, to August 10, 2022, and is sponsored by the Institute of Research and Community Services, ITB. There are 11 invited international speakers (30-minute duration) and 88 contributed speakers (20 min duration) who presented their ideas. With five panel rooms, 35 contributed speakers delivered offline presentations and 53 virtually via Zoom. The speakers, both invited and contributed, presented and introduced new geophysical insights and techniques. The panel discussion featured intriguing topics and invited speakers from various institutions, such as Institut Teknologi Bandung – Indonesia (Dr.rer.nat. R. Mohammad Rachmat Sule, Dr. Tedi Yudistira, Prof. Sri Widiyantoro, Prof. Wahyu Srigutomo, and Prof. Wawan Gunawan Abdul Kadir), CSIRO – Australia (Dr. Erdinc Saygin), Australian National University – Australia (Prof. Phil Cummins), University of Tokyo – Japan (Prof. Takeshi Tsuji), JGI, Inc. – Japan (Moeto Fujisawa, M.Sc.), Ocean University of China – China (Dr. Zhijun Du), and Institut de Physique du Globe de Paris – France (Dr. Jean-Philippe Metaxian). The event was opened by Dr. Fatkhan (the Head of the Geophysical Engineering Master and Doctorate Degree Program, ITB) and closed by Dr. Warsa (the Head of the Geophysical Engineering Bachelor Degree Program, ITB). The SEACG 2022 provided a platform for academics, professionals, and students to discuss and promote scientific results related to recent advancements in geophysical methods and related sciences. The conference covered various session topics, such as Fault and Deformation Study, Passive Seismic, Environmental Geophysics, Geophysical Approaches in Hydrocarbon, Geophysical Approaches in Geothermal, Advance Geophysics, Vulcanology, Tomography, Seismic Hazards, Geomagnetic, and Seismology. We would thank the organization’s team members, the reviewers, and the faculty staff. They have worked very hard to make this event possible. We wish all attendees of SEACG 2022 have an exciting experience and enjoy the moment in this scientific forum. List of Organizing Committee, Documentation are available in this pdf.
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Reading, Anya M., Matthew J. Cracknell, Daniel J. Bombardieri, and Tim Chalke. "Combining Machine Learning and Geophysical Inversion for Applied Geophysics." ASEG Extended Abstracts 2015, no. 1 (December 2015): 1–5. http://dx.doi.org/10.1071/aseg2015ab070.
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Hatch, Mike. "Environmental geophysics: Mundane applied geophysics." Preview 2020, no. 205 (March 3, 2020): 31–34. http://dx.doi.org/10.1080/14432471.2020.1751788.
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House, Nancy. "Memorial." Leading Edge 39, no. 10 (October 2020): 760. http://dx.doi.org/10.1190/tle39100760.1.
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Donald Macpherson was born in Edmonton, Alberta, Canada, on 6 October 1941. He passed on 20 August 2020. Though he was a proud Canadian till the end, he clung to his Scottish culture and became a fixture with his bagpipes at many events throughout the Dallas–Fort Worth area. He attended the University of Alberta, initially studying music and fine arts and earning a bachelor's degree in 1964 with a minor in math and chemistry. He graduated with a master's degree in isotope geochemistry and geophysics from the University of Alberta in 1965. Don walked into the “best job in the world” as a geophysicist at Mobil Oil Canada in 1965. There, he was responsible for seismic acquisition crews, processing, and interpretation of geophysical data.
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Mutton, Andrew J. "The application of geophysics during evaluation of the Century zinc deposit." GEOPHYSICS 65, no. 6 (November 2000): 1946–60. http://dx.doi.org/10.1190/1.1444878.
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During the period 1990 to 1995, experimental programs using high‐resolution geophysics at several Australian operating mines and advanced evaluation projects were undertaken. The primary aim of those programs was to investigate the application of geophysical technology to improving the precision and economics of the ore evaluation and extraction processes. Geophysical methods used for this purpose include: 1) borehole geophysical logging to characterize ore and rock properties more accurately for improved correlations between drill holes, quantification of resource quality, and geotechnical information. 2) imaging techniques between drill holes to map structure directly or to locate geotechnical problems ahead of mining. 3) high‐resolution surface methods to map ore contacts and variations in ore quality, or for geotechnical requirements. In particular, the use of geophysics during evaluation of the Century zinc deposit in northern Australia demonstrated the potential value of these methods to the problems of defining the lateral and vertical extent of ore, quantitative density determination, prediction of structure between drill holes, and geotechnical characterization of the deposit. An analysis of the potential benefit of using a combination of borehole geophysical logging and imaging suggested that a more precise structural evaluation of the deposit could be achieved at a cost of several million dollars less than the conventional evaluation approach based on analysis from diamond drill‐hole logging and interpolation alone. The use of geophysics for the Century evaluation also provided substance to the possibility of using systematic geophysical logging of blast holes as an integral part of the ore extraction process. Preliminary tests indicate that ore boundaries can be determined to a resolution of several centimeters, and ore grade can be estimated directly to a usable accuracy. Applying this approach routinely to production blast holes would yield potential benefits of millions of dollars annually through improved timeliness and accuracy of ore boundary and quality data, decreased dilution, and improved mill performance. Although the indications of substantial benefits resulting from the appropriate and timely use of geophysics at Rio Tinto’s mining operations are positive, some challenges remain. These relate largely to the appropriate integration of the technology with the mining process, and acceptance by the mine operators of the economic value of such work. Until the benefits are demonstrated clearly over time, the use of geophysics as a routine component of evaluation and mining is likely to remain at a low level.
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Lumley, David. "President's Page: Synergies in geophysical, medical, and space imaging — The next 20 years." Leading Edge 40, no. 3 (March 2021): 166–67. http://dx.doi.org/10.1190/tle40030166.1.
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Almost exactly 20 years ago, in July 2001, I organized and chaired the first SEG Summer Research Workshop on the topic of “Synergies in Geophysical, Medical and Space Imaging” (see The Leading Edge [TLE], 21, no. 6, 599-606). At the virtual SEG Annual Meeting in October 2020, special sessions were held on “Planetary Geophysics” and “Geophysics in Medicine.” Recently, I have been asked by SEG President Maurice Nessim to help lead two task forces to advance the use of applied geophysics in both the medical and space sciences. It is therefore an excellent time to share some thoughts on the next 20 years of collaboration possibilities in these areas.
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Fenta, Mulugeta C., David K. Potter, and János Szanyi. "Fibre Optic Methods of Prospecting: A Comprehensive and Modern Branch of Geophysics." Surveys in Geophysics 42, no. 3 (March 9, 2021): 551–84. http://dx.doi.org/10.1007/s10712-021-09634-8.
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AbstractOver the past decades, the development of fibre optic cables, which pass light waves carrying data guided by total internal reflection, has led to advances in high-speed and long-distance communication, large data transmission, optical imaging, and sensing applications. Thus far, fibre optic sensors (FOSs) have primarily been employed in engineering, biomedicine, and basic sciences, with few reports of their usage in geophysics as point and distributed sensors. This work aimed at reviewing the studies on the use of FOSs in geophysical applications with their fundamental principles and technological improvements. FOSs based on Rayleigh, Brillouin, and Raman scatterings and fibre Bragg grating sensors are reviewed based on their sensing performance comprising sensing range, spatial resolution, and measurement parameters. The recent progress in applying distributed FOSs to detect acoustic, temperature, pressure, and strain changes, as either single or multiple parameters simultaneously on surface and borehole survey environments with their cable deployment techniques, has been systematically reviewed. Despite the development of fibre optic sensor technology and corresponding experimental reports of applications in geophysics, there have not been attempts to summarise and synthesise fibre optic methods for prospecting as a comprehensive and modern branch of geophysics. Therefore, this paper outlines the fibre optic prospecting methods, with an emphasis on their advantages, as a guide for the geophysical community. The potential of the new outlined fibre optic prospecting methods to revolutionise conventional geophysical approaches is discussed. Finally, the future challenges and limitations of the new prospecting methods for geophysical applications are elucidated.
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Brown, S. "Workshop Review: Virtual workshop on AI and machine learning in geophysics draws global audience." Leading Edge 41, no. 12 (December 2022): 872. http://dx.doi.org/10.1190/tle41120872.1.
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A recent SEG workshop enabled discussion among participants from around the world on the application of machine learning and artificial intelligence (AI) to a number of geophysical methods, applications, and to geophysical data at various scales. Applications of Machine Learning and AI in Geophysics was organized by SEG's Eurasia Regional Advisory Committee and took place virtually from 10 to 13 May 2022.
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Mamarozikov, T. U., D. D. Yusupov, Sh Kh Otazhonova, N. B. Khikmatillayev, and A. A. Oripov. "ЦИФРОВОЙ КОМПЛЕКС PULSELAB ДЛЯ ПРАКТИЧЕСКОЙ РАБОТЫ ПО ИЗУЧЕНИЮ ОСНОВ ГЕОФИЗИКИ." Journal of Science and Innovative Development 6, no. 3 (June 22, 2023): 6–22. http://dx.doi.org/10.36522/2181-9637-2023-3-1.
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The article discusses a special software package that represents a series of automated educational programs aimed at improving quality of teaching and learning in the field of geophysics. The subject of the research is the laws of propagation of physical fields used in geophysical science. The aim of the research is to develop a series of laboratory and practical activities on geophysical methods in order to show the processes of physical field propagation in the geological environment, to students. The research was also focused on a review of the global experience in using digital (virtual) laboratories in educational practice for teaching natural and engineering sciences, particularly, in geophysics. As a result of the review of the data on geophysics, we have developed algorithms for calculating and visualizing the processes of physical field propagation. These algorithms were developed for such sections of geophysics as seismic exploration, seismology, electrical-, magnetic- and gravity exploration. Ultimately, the algorithms have enabled implementing of a platform on which laboratory units which incorporate such sections as seismic exploration and seismology. The analysis of the students’ feedback confirmed effectiveness of the program, contributing to the development of critical thinking skills, self-discipline, and responsibility. Conclusions of the article emphasize the importance of implementing such innovative approaches to traditional format of learning in view of improving its quality and meeting nowadays requirements.
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Gubbins, D. "Geophysics." Earth-Science Reviews 27, no. 3 (May 1990): 269–70. http://dx.doi.org/10.1016/0012-8252(90)90009-k.
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Kulikov, V. A., A. G. Yakovlev, and V. A. Polikarpova. "SOME PROBLEMS OF ELECTRICAL GEOPHYSICAL PROSPECTING METHODS USED FOR EXPLORATION OF ORE DEPOSITS." Geodynamics & Tectonophysics 12, no. 3S (October 19, 2021): 731–47. http://dx.doi.org/10.5800/gt-2021-12-3s-0550.
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Electrical geophysical prospecting methods are widely used at different stages of geological exploration. In the last two decades, new computer technologies and satellite navigation systems were successfully introduced in the geophysical industry. As a result, exploration technologies have improved, and new geophysical methods have been developed, such as electrical resistivity tomography (ERT) and spectral induced polarization (SIP) methods. An important role in ore geophysics is played by magnetotelluric (MT) methods. In this article, we focus on the issues of methodology and interpretation of electrical prospecting data for solving ore exploration problems. Special attention is paid to the induced polarization (IP) method that is most widely used in mineral exploration and mining industry as one of the most important and most dynamically developing techniques of ore geophysics. In addition, the issues of correct choices of survey scales and the use of automatic 2D and 3D inversion programs are considered.
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Becker, Alex. "Geophysical technology transfer symposium: Russian airborne geophysics and remote sensing." Leading Edge 12, no. 7 (July 1993): 784–801. http://dx.doi.org/10.1190/1.1436970.
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Geary, Andrew. "Seismic Soundoff: Uncovering the hidden history of Ghana." Leading Edge 42, no. 6 (June 2023): 444. http://dx.doi.org/10.1190/tle42060444.1.
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Cyril D. Boateng discusses his SEG field camp, “Investigating the slave trade in southeastern Ghana using integrated geophysical techniques.” He explains the concept behind “the archaeology of slavery” and describes the various geophysical investigations used across four communities. This conversation highlights the significant value that geophysics brings to a problem. It shows how SEG field camps are an invaluable tool for building the next generation of scientists and providing humanitarian benefits.
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Greenhouse, John P., and David D. Slaine. "Geophysical modelling and mapping of contaminated groundwater around three waste disposal sites in southern Ontario." Canadian Geotechnical Journal 23, no. 3 (August 1, 1986): 372–84. http://dx.doi.org/10.1139/t86-052.
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We present an approach to the use of electomagnetic geophysical methods for delineating groundwater contamination, and test the concepts at three waste disposal sites. The approach includes a technique for modelling a site's response to a variety of instruments, and a device-independent method of contouring the data. The modelling attempts to account for the noise inherent in the measurement process, particularly the effects of lateral variations in stratigraphy. These concepts are evaluated by comparing the geophysical response to groundwater conductivities measured in sampling wells. We conclude that geophysics offers a cost-effective supplement to drilling, and that it is best used in a reconnaissance mode to map the general distribution of contamination prior to a detailed sampling program. The correlation between the observed and predicted geophysical response as a function of groundwater conductivity is as good as can be expected given the uncertainties in the process. The methodology proposed is simple to use and practical. Key words: groundwater, contamination, geophysics, electromagnetic, mapping, modelling.
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Weiss, Chester J., G. Didem Beskardes, Kris MacLennan, Michael J. Wilt, Evan Schankee Um, and Don C. Lawton. "Observing and modeling the effects of production infrastructure in electromagnetic surveys." Leading Edge 41, no. 2 (February 2022): 100–106. http://dx.doi.org/10.1190/tle41020100.1.
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Electromagnetic (EM) methods are among the original techniques for subsurface characterization in exploration geophysics because of their particular sensitivity to the earth electrical conductivity, a physical property of rocks distinct yet complementary to density, magnetization, and strength. However, this unique ability also makes them sensitive to metallic artifacts — infrastructure such as pipes, cables, and other forms of cultural clutter — the EM footprint of which often far exceeds their diminutive stature when compared to that of bulk rock itself. In the hunt for buried treasure or unexploded ordnance, this is an advantage; in the long-term monitoring of mature oil fields after decades of production, it is quite troublesome indeed. Here we consider the latter through the lens of an evolving energy industry landscape in which the traditional methods of EM characterization for the exploration geophysicist are applied toward emergent problems in well-casing integrity, carbon capture and storage, and overall situational awareness in the oil field. We introduce case studies from these exemplars, showing how signals from metallic artifacts can dominate those from the target itself and impose significant burdens on the requisite simulation complexity. We also show how recent advances in numerical methods mitigate the computational explosivity of infrastructure modeling, providing feasible and real-time analysis tools for the desktop geophysicist. Lastly, we demonstrate through comparison of field data and simulation results that incorporation of infrastructure into the analysis of such geophysical data is, in a growing number of cases, a requisite but now manageable step.
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Kogan, L. I. "EXPEDITIONS AND RESEARCHES OF MARINE GEOPHYSICS YU.P. NEPROCHNOV." Journal of Oceanological Research 48, no. 2 (August 28, 2020): 208–24. http://dx.doi.org/10.29006/1564-2291.jor-2020.48(2).16.
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This article is dedicated to the anniversary of geophysicist, doctor of physical and mathematical sciences, Professor Yuri Pavlovich Neprochnov, who would turn 90 years old this year. Prof. Neprochnov created a school of seismic marine geologists. He had numerous students, who prepared and successfully defended 12 Ph.D., and D.Sc. dissertations under his leadership. He is the author and co-author of more than 400 scientific articles and 18 monographs. Neprochnov was a Member of the Second World War, a Member of the Scientific Council of the Russian Academy of Sciences on the problems of the oceans, where he led the working group on seismic and integrated geophysics; Coordinator of International projects for scientific cooperation with India, China and Finland, a Member of the Editorial board of the Journal «Oceanology», was elected a full Member of the Russian Academy of Natural Sciences and a Member of the New York Academy of Sciences, and in 2002 for his labor successes and a great contribution to strengthening friendship and cooperation between peoples he was awarded the title of Honored Scientist of the Russian Federation. His friend and colleague in scientific geophysical research L.I. Kogan recalls years of teamwork and expresses his appreciation for professional friendships throughout his life.
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Zhang, Zhihui, and Rui Wang. "The development of geophysics in the early period of the People's Republic of China based on the Institute of Geophysics, Chinese Academy of Sciences (1950–1966)." History of Geo- and Space Sciences 12, no. 1 (February 3, 2021): 21–41. http://dx.doi.org/10.5194/hgss-12-21-2021.
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Abstract. From the perspective of the social history of science and transnational history, this paper reviewed the development of the Institute of Geophysics, Chinese Academy of Sciences (IGCAS), rather than focusing on its scientific achievements. Before the 1950s, the discipline of geophysics in China, except for the branch of meteorology, had a very weak foundation, and few researchers were engaged in it. The systematic development of geophysics began with the establishment of IGCAS. In this paper, the early development of IGCAS was researched thoroughly. At first, we briefly reviewed the establishment process for IGCAS. After being promoted by the desire of scientists to develop big geophysics, the Chinese Academy of Sciences (CAS) integrated scattered academic forces, which included geomagnetism and geophysical exploration, to establish the IGCAS. The IGCAS was based on the Institute of Meteorology of Academia Sinica in the Republic of China era. After that, we summarized work done by IGCAS in the development of geophysics from the 1950s to 1966, the year in which the Cultural Revolution began. We focused on policy support, adjustment of organizational structure, and scientific capacity building, when China was facing an isolated international diplomatic environment, continuous domestic political movements, and an austere social economy. Then, to bolster the development of geophysics in China, the slogan of “Missions Drive Disciplines”, which was instilled and implemented by the Chinese scientific community, was introduced briefly. The scientific development of the IGCAS and typical examples in several branches of geophysics, which included atmospheric science, seismology, space physics, and other fields, were systematically summarized and benchmarked to the international academic level. We then summarized the basic research on geophysics carried out by the institute in economic construction and national defense. Finally, the experience and lessons in the development of this institute and its effect on geophysics in China were explored.
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Ahmad Alhassan, Auwal Aliyu, Abubakar Magaji, M.Nuruddeen Abdulkareem, and Mohammed Abdullahi. "An Insight Into The Importance Of Application Of Geophysical Methods In Agriculture For National Economic Development." Global Sustainability Research 1, no. 1 (August 12, 2022): 1–4. http://dx.doi.org/10.56556/gssr.v1i1.301.
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One of the keys to national development in developing countries like Nigeria is the diversification of economy. Nigeria’s economy depends majorly on crude oil. The oil sector continue to face challenges like price drop in international market, corruption, reduced quantity of production as forecasted (although new oils are been drilled). These among others makes it necessary for the country to diversify its economy. Agriculture is one of the areas Nigeria have started investing into. New methods are necessary for fast improvement in the sector among which is geophysics. The need for Agricultural Geophysics to be considered for national economic development is discussed. Geophysics as a branch of science that deal with physical processes and phenomena occurring in the earth and its vicinity is applicable to many fields that contribute to the development of the economy of any nation. Such fields include oil, Agriculture, natural resources among others. Geophysical methods applicable in Agriculture like resistivity, electromagnetic induction, and Ground penetrating radar are discussed with their applications in agriculture. The various geophysical methods that are useful in agriculture are reviewed and necessity of their application is also emphasized.
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Gustavsen, Lars, and Lars Anderson Stamnes. "Arkeologisk geofysikk i Norge – En historisk oversikt og statusevaluering." Primitive Tider, no. 14 (December 11, 2021): 77–94. http://dx.doi.org/10.5617/pt.7225.
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Archaeological geophysics in Norway - an historical overview and status evaluation The introduction of archaeological geophysics to Norway has been relatively slow and the methodologies employed are still very much in their infancy. A recently compiled overview indicates that only about 120 surveys have been conducted in Norway over the last 40 years, which is a relatively low number compared with other countries. In other European countries several hundred surveys are conducted annually and archaeological geophysics is generally considered an integral part of archaeological investigations and evaluations. The article gives a short description of the most commonly used methods in archaeology, and focuses on some of the more important geophysical surveys carried out in Norway. Furthermore, it seeks to explain why the Norwegian archaeological milieu has been reluctant to adopt these methods in their work.
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Schuster, Gerard T. "SEG: 75 Years and Going Strong." GEOPHYSICS 70, no. 1 (January 2005): 12JF. http://dx.doi.org/10.1190/1.1884990.
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The year 2005 marks the 75th anniversary of the Society of Exploration Geophysicists. Among the many commemorations is a series of special papers in GEOPHYSICS throughout 2005, providing an overview of the journal and how it has advanced the field of exploration geophysics. A motivation for this series is to allow young geophysicists and veterans to temporarily step aside from computer terminals and innumerable meetings to revel in the panoramic view of our shared history of geophysical technology and science that has had such a tremendous impact on the development of modern civilization.
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Adeyinka Alex Banso, Joy Otibhor Olurin, and Oluwaseun Ayo Ogunjobi. "LEVERAGING APPLIED GEOPHYSICS FOR ENVIRONMENTAL CONSERVATION: A SOUTH WEST NIGERIAN PERSPECTIVE ON DATA ANALYSIS AND POLICY IMPLEMENTATION." Engineering Science & Technology Journal 4, no. 4 (October 26, 2023): 235–58. http://dx.doi.org/10.51594/estj.v4i4.589.
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This research aimed to delve into the potential of applied geophysics in environmental conservation, with a specific focus on the South West Nigerian context, and its implications for data analysis and policy implementation. Through a comprehensive review of peer-reviewed articles, case studies, and primary research, the study explored various geophysical techniques and their applications in environmental conservation efforts. The research highlighted the efficacy of these techniques in the South West Nigerian region, emphasizing their significance in shaping environmental policies. Despite the evident potential, challenges and limitations associated with these techniques were also identified. The study further provided suggestions for improved environmental conservation strategies and highlighted potential areas for continued research in the realm of applied geophysics. In conclusion, while applied geophysics offers promising tools for environmental conservation, a holistic approach, integrating both scientific and policy-driven strategies, is essential for sustainable conservation efforts in South West Nigeria. Recommendations include fostering collaborations between geoscientists, policymakers, and local communities, and investing in further research to address identified gaps.
Keywords: Applied Geophysics, Environmental Conservation, South West Nigeria, Policy Implementation, Data Analysis.
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Duhailan, Mohammed Al, and Mohammed Badri. "Maximizing the value of geophysics in unconventional resources." Leading Edge 38, no. 4 (April 2019): 310–12. http://dx.doi.org/10.1190/tle38040310.1.
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As unconventional resources continue to be the focus of many operating companies, applications of cost-efficient practices along with technological advancements in drilling and completion will continue to be key enablers for efficiency and obtaining economies of scale. However, this pursuit of efficiency has led to a perception that developing these resources is strictly an engineering-optimization endeavor. This perception suppresses the value of geophysics in addressing uncertainties related to reservoir quality and completion effectiveness. Eventually, it may hinder unlocking the full potential of these resources. Despite this narrative about efficiency versus effectiveness, geophysics is challenged by inherent constraints such as noise, resolution of data, and the ability to identify economic sweet-spot fairways. Therefore, geophysicists encounter difficulties quantifying the value of geophysics in unconventional resource plays and struggle expressing it in economic terms. This paper sheds light on an SEG workshop, “Maximizing the value of geophysics in unconventional resource plays,” that was conducted in Dubai in October 2018. A total of 52 attendees from 17 companies and nine countries took home one common message: “How can my geophysical work positively impact the bottom line, i.e., $/BOE.” The workshop addressed questions related to how the value of geophysics can be realized and measured throughout the unconventional asset life cycle and how this value can be maximized and expressed in economic terms.