Searched for: author%3A%22Martins%2C+Joana+E.%22
(1 - 12 of 12)
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Toledo, Tania (author), Obermann, A. (author), Verdel, A. (author), Martins, Joana E. (author), Jousset, P. (author), Mortensen, A. K. (author), Erbas, Kemal (author), Krawczyk, C. M. (author)
In autumn 2017 a network of 14 broadband seismic stations was deployed at the Theistareykir high temperature geothermal field (NE Iceland). This experiment was conducted as part of the current efforts to characterize the field's main structures, and possible short and long term stress variations due to the ongoing fluid injection and...
journal article 2022
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Martins, Joana E. (author), Hooper, A.J. (author), Hanssen, R.F. (author)
After decades of oil, gas, and coal exploitation, we have learned about some of the unpleasant aftereffects of subsurface resource exploration. Adverse long-term impacts, some known during exploration periods, others only afterwards, may include induced seismicity, land subsidence, or even sinkholes. While geothermal is currently seen as a...
conference paper 2021
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Békési, Eszter (author), Fokker, Peter A. (author), Martins, Joana E. (author), Norini, Gianluca (author), Wees, Jan-Diederik van (author)
We investigate ground movements induced by the 8 February 2016, Mw=4.2 earthquake at the Los Humeros Geothermal Field (Mexico) using Sentinel-1 radar interferometry. Previous estimated focal mechanism solution based on seismic data with a hypocentral depth of 1900 m could not resolve the measured coseismic surface deformation pattern. In this...
journal article 2021
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Verdel, Arie (author), Boullenger, Boris (author), Martins, Joana E. (author), Obermann, Anne (author), Toledo, Tania (author), Jousset, Philippe (author)
abstract 2020
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Martins, Joana E. (author), Obermann, Anne (author), Verdel, Arie (author), Jousset, Philippe (author)
abstract 2020
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Bekési, Eszter (author), Fokker, Peter A. (author), Martins, Joana E. (author), Limberger, Jon (author), Bonté, Damien (author), van Wees, Jan-Diederik (author)
Surface deformation due to fluid extraction can be detected by satellite-based geodetic sensors, providing important insights on subsurface geomechanical properties. In this study, we use Differential Interferometric Synthetic Aperture Radar (DInSAR) observations to measure ground deformation due to fluid extraction at the Los Humeros...
journal article 2019
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Martins, Joana E. (author), Ruigrok, Elmer (author), Draganov, D.S. (author), Hooper, A. (author), Hanssen, R.F. (author), White, R.S. (author), Soosalu, Heidi (author)
Torfajökull volcano, Iceland, has not erupted since 1477. However, intense geothermal activity, deformation, and seismicity suggest a long‐lasting magmatic system. In this paper, we use ambient noise tomography to image the magmatic system beneath Torfajökull volcano. One hundred days of ambient noise data from 23 broadband seismometers show the...
journal article 2019
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Verdel, Arie (author), Boullenger, Boris (author), Martins, Joana E. (author), Obermann, Anne (author), Toledo Zambrano, Tania (author), Jousset, Philippe (author)
Integration of results from active seismic, passive seismic and well data reduces the uncertainties of several subsurface parameters that are of interest for cost-effective geothermal production operations in Los Humeros. In this study, we present results from the application of ambient noise seismic interferometry (ANSI) to retrieve zero-offset...
conference paper 2019
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Bekési, Eszter (author), Fokker, PA (author), Martins, Joana E. (author), van Wees, Jan-Diederik (author)
On the 8th of February 2016, a Mw 4.2 earthquake was detected inside the Los Humeros caldera, located in the eastern sector of the Trans-Mexican Volcanic Belt. The event occurred after a sharp increase in the injection rate at the Los Humeros Geothermal Field and it was recorded by the seismic monitoring network of the power plant. The...
conference paper 2019
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Martins, Joana E. (author), Weemstra, C. (author), Ruigrok, Elmer (author), Verdel, Arie (author), Jousset, Philippe (author), Hersir, Gylfi (author)
Tomographic imaging based on ambient seismic noise measurements has shown to be a powerful tool, especially in areas like Iceland, where the microseism illumination is excellent. In this paper, we produce a 3D S-wave tomographic image over the western Reykjanes Peninsula high-enthalpy geothermal fields and evaluate the reliability of the...
journal article 2019
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Samiei Esfahany, S. (author), Martins, Joana E. (author), van Leijen, F.J. (author), Hanssen, R.F. (author)
In recent years, new algorithms have been proposed to retrieve maximum available information in synthetic aperture radar (SAR) interferometric stacks with focus on distributed scatterers. The key step in these algorithms is to optimally estimate single-master (SM) wrapped phases for each pixel from all possible interferometric combinations,...
journal article 2016
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Martins, Joana E. (author), Hooper, Andy (author), Ruigrok, E.N. (author), Draganov, D.S. (author), Hanssen, R.F. (author), White, Robert (author), Soosalu, Heidi (author)
Torfajökull is the largest silicic volcanic centre in Iceland lying at the intersection of the rift zone (MidAtlantic Ridge) and the transform zone that connects to Reykjanes peninsula. It erupts infrequently,with only two eruptions in the last 1200 years, the latest of which was over 5 centuries ago. Yet, itsactive tectonic setting, persistent...
abstract 2014
Searched for: author%3A%22Martins%2C+Joana+E.%22
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