Passive Assessment of Geophysical Instruments Performance using Electrical Network Frequency Analysis

Autor: Mathijs Koymans, Jelle Assink, Elske de Zeeuq-van Dalfsen, Läslo Evers

Publikováno v: Seismica, Vol 2, Iss 2 (2023)

The electrical network frequency (ENF) of the alternating current operated on the power grid is a well-known source of noise in digital recordings. The noise is widespread and appears not just in close proximity to high-voltage power lines, but also

Externí odkaz: https://doaj.org/article/b68a1b5434954017880e381e87430697

Ongoing unrest at Icelandic volcanoes: What deformation and seismicity patterns to expect leading up to future eruptions

Autor: Freysteinn Sigmundsson, Michelle Parks, Halldór Geirsson, Páll Einarsson, Vincent Drouin, Benedikt G. Ófeigsson, Kristín Jónsdóttir, Kristín S. Vogfjörd, Andrew Hooper, Yilin Yang, Sonja H. M. Greiner, Siqi Li, Chiara Lanzi, Sigrún Hreinsdóttir, Ronni Grapenthin, Erik Sturkell, Elske de Zeeuw van Dalfsen, Mathijs Koymans, Sara Barsotti

Precursors to volcanic eruptions vary widely between volcanic systems and their individual eruptions. Volcanic systems in Iceland undergoing unrest include the Reykjanes, Svartsengi, Fagradalsfjall, and Krísuvík systems on the obliquely spreading R

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f0593fe772b236e89b18564037b2aaff
https://doi.org/10.5194/egusphere-egu23-9696

Inflation at Askja, Iceland. New and revisited relative microgravity data

Autor: Elske de Zeeuw van Dalfsen, Josefa Sepulveda Araya, Andy Hooper, Freysteinn Sigmundsson, Erik Sturkell, Siqi Li, Chiara Lanzi, Mathijs Koymans, Jeanne Giniaux

In August 2021 Askja caldera in Iceland started to show uplift after decades of subsidence. The uplift signal is centered at the northwestern edge of lake Ӧskjuvatn and an order of magnitude larger than the subsidence in the last decade. In Septembe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ddc7911126ba11b42560a66b615945f2
https://doi.org/10.5194/egusphere-egu22-7070

Global quieting of high-frequency seismic noise due to COVID-19 pandemic lockdown measures

Autor: Han Xiao, Ben A. van der Pluijm, Simon Richard Proud, Adolfo Inza, Stephen Hicks, T. Megies, Alexander E. Stott, William G. Minarik, Efthimios Sokos, Mika McKinnon, Kasper van Wijk, Anna Horleston, Victor H. Márquez-Ramírez, Läslo Evers, Bogdan Grecu, Esteban J. Chaves, Joachim Wassermann, Claudio Satriano, Christos Evangelidis, Paula Koelemeijer, David Craig, Frédérick Massin, Sebastián Carrasco, György Hetényi, Mario Arroyo-Solórzano, Eric Larose, Jay J. Pulli, Társilo Girona, Lise Retailleau, Javier Ojeda, Olivier F. C. den Ouden, Alan L. Kafka, Gonzalo A. Fernandez, Marc Grunberg, Tommi Vuorinen, Robert E. Anthony, Steven J. Gibbons, Stefanie Donner, Martin Möllhoff, Nathaniel J. Lindsey, Jordi Diaz, C. R. Labedz, Meghan S. Miller, Taka'aki Taira, Dave Cornwell, Mathijs Koymans, Corentin Caudron, Klaus Stammler, Andrea Cannata, Flavio Cannavò, Reinoud Sleeman, Mark Vanstone, Shiba Subedi, Raphael S. M. De Plaen, Shankho Niyogi, Koen Van Noten, Shahar Shani-Kadmiel, Jelle Assink, Tristram Warren, Jessica C. E. Irving, Ian M. Nesbitt, Dimitrios Giannopoulos, Martha K. Savage, Mohammadreza Jamalreyhani, Louis Moresi, Maria-Theresia Apoloner, Gregor Hillers, Jérôme Vergne, Benoit Fauville, Fatih Turhan, Annukka E. Rintamäki, Pınar Büyükakpınar, Adrien Oth, Mathilde B. Sørensen, Mar Tapia, Thomas Lecocq

Publikováno v: Science, 369 (6509
Lecocq, T, Hicks, S P, Van Noten, K, Van Wijk, K, Koelemeijer, P, De Plaen, R S M, Massin, F, Hillers, G, Anthony, R E, Apoloner, M-T, Arroyo-Solórzano, M, Assink, J D, Büyükakpınar, P, Cannata, A, Cannavo, F, Carrasco, S, Caudron, C, Chaves, E J, Cornwell, D G, Craig, D, Den Ouden, O F C, Diaz, J, Donner, S, Evangelidis, C P, Evers, L, Fauville, B, Fernandez, G A, Giannopoulos, D, Gibbons, S J, Girona, T, Grecu, B, Grunberg, M, Hetényi, G, Horleston, A, Inza, A, Irving, J C E, Jamalreyhani, M, Kafka, A, Koymans, M R, Labedz, C R, Larose, E, Lindsey, N J, McKinnon, M, Megies, T, Miller, M S, Minarik, W, Moresi, L, Márquez-Ramírez, V H, Möllhoff, M, Nesbitt, I M, Niyogi, S, Ojeda, J, Oth, A, Proud, S, Pulli, J, Retailleau, L, Rintamäki, A E, Satriano, C, Savage, M K, Shani-kadmiel, S, Sleeman, R, Sokos, E, Stammler, K, Stott, A E, Subedi, S, Sørensen, M B, Taira, T, Tapia, M, Turhan, F, Van Der Pluijm, B, Vanstone, M, Vergne, J, Vuorinen, T A T, Warren, T, Wassermann, J & Xiao, H 2020, ' Global quieting of high-frequency seismic noise due to COVID-19 pandemic lockdown measures ', Science, vol. 369, no. 6509, pp. 1338-1343 . https://doi.org/10.1126/science.abd2438
Digital.CSIC. Repositorio Institucional del CSIC
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Science

Human activity causes vibrations that propagate into the ground as high-frequency seismic waves. Measures to mitigate the COVID-19 pandemic caused widespread changes in human activity, leading to a months-long reduction in seismic noise of up to 50%.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::913757dca9b6c3eb0ce188290255b60a
http://hdl.handle.net/10261/217766

The NEWTON-g 'gravity imager': a new window into processes involving subsurface fluids

Autor: Giuseppe Siligato, Costanza Bonadonna, Laura Antoni-Micollier, Eleonora Rivalta, Elske de Zeeuw-van Dalfsen, Alfio Messina, Filippo Greco, Jean Lautier-Gaud, Mehdi Nikkhoo, Danilo Contrafatto, Flavio Cannavò, Mathijs Koymans, Corine Frischknecht, G. D. Hammond, Daniele Carbone, Richard Middlemiss, K. Toland

Publikováno v: EGU General Assembly 2020

Gravimetry is the only method able to directly track redistributions of bulk masses. Hence, it can supply unique information on geophysical processes that involve subsurface fluids like water, hydrocarbons, and magma. Nevertheless, the high cost of c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bd561845641c41fbd952e7a6e1631a2
https://doi.org/10.5194/egusphere-egu2020-16329