<?xml 
version="1.0" encoding="utf-8"?><?xml-stylesheet title="XSL formatting" type="text/xsl" href="https://www.isterre.fr/spip.php?page=backend.xslt" ?>
<rss version="2.0" 
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:atom="http://www.w3.org/2005/Atom"
>

<channel xml:lang="fr">
	<title>ISTerre - Institut des Sciences de la Terre</title>
	<link>https://www.isterre.fr/</link>
	<description>Site web de l'Institut des Sciences de la Terre (ISTerre), unit&#233; mixte de recherche du CNRS, de l'Universit&#233; Grenoble Alpes, de l'Universit&#233; Savoie Mont Blanc, de l'IRD et de l'IFSTTAR</description>
	<language>fr</language>
	<generator>SPIP - www.spip.net</generator>
	<atom:link href="https://www.isterre.fr/spip.php?id_auteur=230&amp;page=backend" rel="self" type="application/rss+xml" />

	<image>
		<title>ISTerre - Institut des Sciences de la Terre</title>
		<url>https://www.isterre.fr/sites/www.isterre.fr/local/cache-vignettes/L60xH59/siteon0-1e5f7.png?1789475664</url>
		<link>https://www.isterre.fr/</link>
		<height>59</height>
		<width>60</width>
	</image>



<item xml:lang="fr">
		<title>Publications</title>
		<link>https://www.isterre.fr/annuaire/pages-web-du-personnel/svetlana-byrdina/article/publications.html</link>
		<guid isPermaLink="true">https://www.isterre.fr/annuaire/pages-web-du-personnel/svetlana-byrdina/article/publications.html</guid>
		<dc:date>2014-06-19T08:07:55Z</dc:date>
		<dc:format>text/html</dc:format>
		<dc:language>fr</dc:language>
		<dc:creator>Svetlana BYRDINA</dc:creator>



		<description>&lt;p&gt;liste de mes publications r&#233;centes&lt;/p&gt;

-
&lt;a href="https://www.isterre.fr/annuaire/pages-web-du-personnel/svetlana-byrdina/" rel="directory"&gt;Svetlana BYRDINA&lt;/a&gt;


		</description>


 <content:encoded>&lt;div class='rss_texte'&gt;&lt;p&gt;Torres, JL, S Byrdina, G Romero-Beltran, S Garambois, M Rivera, et al, Magma storage below Sabancaya volcano (Southern Peru) imaged by broad band magnetotellurics, ESS Open Archive, DOI : 10.22541/ESSoar.174491958.89031768/v1&lt;/p&gt;
&lt;p&gt;Torres, J. L. S. Byrdina et al. (2024), Magma reservoir below Sabancaya volcano (Southern Peru) imaged by broadband magnetotellurics, Extended abstract, 26th EM Induction Workshop, Beppu, Japan, September 7-13, 2024&lt;/p&gt;
&lt;p&gt;M. Byrdin and S. Byrdina, Impact of triplet state population on GFP-type fluorescence and photobleaching,&lt;br class='autobr' /&gt;
2025, Biology of the Cell 117(2):e2400076, DOI : 10.1111/boc.202400076&lt;/p&gt;
&lt;p&gt;Dutoit,H., et al, 2024, Assessing the helium potential of Variscan batholiths : Insight from Corsica Island Geochemistry, Geophysics, Geosystems 25 (7), e2024GC011519&lt;/p&gt;
&lt;p&gt;Budi-Santoso, F. Beauducel, I G. M. Nandaka, H. Humaida, F. Costa, C.Widiwijayanti, M. Iguchi, J.-P. M&#233;taxian, I. Rudianto, M. Rozin, Sulistiyani, I. Nurdin, K. Kelfoun, S. Byrdina, V. Pinel, A. A. Fahmi, A. Laurin, M. H. Rizal, N. Dahamna, 2023, The Merapi volcano monitoring system, pp 409-436, in Merapi Volcano : geology, eruptive activity, and monitoring of a high-risk volcano, Springer International Publishing, doi:10.1007/978-3-031-15040-1_13&lt;/p&gt;
&lt;p&gt;Girault, F., F Viveiros, C Silva, S Thapa, JE Pacheco, LB Adhikari, et al.,2022, Radon signature of CO2 flux constrains the depth of degassing : Furnas volcano (Azores, Portugal) versus Syabru-Bensi (Nepal Himalayas), Scientific Reports 12 (1), 10837, 13, &lt;a href=&#034;https://doi.org/10.1038/s41598-022-14653-5&#034; class=&#034;spip_url spip_out auto&#034; rel=&#034;nofollow external&#034;&gt;https://doi.org/10.1038/s41598-022-14653-5&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Miller, CA, BW Christenson, S Byrdina, J Vandemeulebrouck, et al., 2020, Snapshot of a magmatic/hydrothermal system from electrical resistivity tomography and fumarolic composition, Whakaari/White Island, New Zealand, Journal of Volcanology and Geothermal Research 400, 106909, &lt;a href=&#034;https://doi.org/10.1016/j.jvolgeores.2020.106909&#034; class=&#034;spip_url spip_out auto&#034; rel=&#034;nofollow external&#034;&gt;https://doi.org/10.1016/j.jvolgeores.2020.106909&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Yogeshwar, P., M K&#252;pper, B Tezkan, V Rath, D Kiyan, S Byrdina, et al, 2020, Innovative boat-towed transient electromagnetics&#8212;Investigation of the Furnas volcanic lake hydrothermal system, Azores, Geophysics 85 (2), E41-E56, &lt;a href=&#034;https://doi.org/10.1190/geo2019-0292.1&#034; class=&#034;spip_url spip_out auto&#034; rel=&#034;nofollow external&#034;&gt;https://doi.org/10.1190/geo2019-0292.1&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Hogg, C., D. Kiyan, V. Rath, S. Byrdina, J. Vandemeulebrouck, A. Revil, F. Viveiros, R. Carmo, C. Silva, T. Ferreira (2017) Three-Dimensional interpretation of short period magnetotelluric data at Furnas Volcano, Azores Islands, Geophys. J. Int. Vol. 213 Issue 1, p371-386. 16p. DOI : 10.1093/gji/ggx512&lt;/p&gt;
&lt;p&gt;Byrdina, S., S. Friedel, J. Vandemeulebrouck, A. Budi-Santoso, Suhari, W. Suryanto, M. H. Rizal, E. Winata, Kusdaryanto, (2017). Geophysical image of the hydrothermal system of Merapi volcano., J. Volcanol. Geotherm. Res., 329,30-40&lt;/p&gt;
&lt;p&gt;Gresse, M., J. Vandemeulebrouck, S. Byrdina, G. Chiodini, A. Revil, T. C. Johnson, T. Ricci, G. Vilardo, T. Lebourg, J. Grangeon, P. Bascou, and L. Metral, 3-D resistivity tomography of the Solfatara crater (Italy) : Implication for the multiphase flow structure of the shallow hydrothermal system, Journal of Geophysical&lt;br class='autobr' /&gt;
Research : Solid Earth, 122, 8749&#8211;8768. &lt;a href=&#034;https://doi.org/10.1002/2017JB014389&#034; class=&#034;spip_url spip_out auto&#034; rel=&#034;nofollow external&#034;&gt;https://doi.org/10.1002/2017JB014389&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Gresse, M., J. Vandemeulebrouck, S. Byrdina, G. Chiodini and P.P. Bruno (2016). Changes in CO2 diffuse degassing induced by the passing of seismic waves, J. Volcanol. Geotherm. Res., DOI : 10.1016/j.jvolgeores.2016.04.019&lt;/p&gt;
&lt;p&gt;Brothelande E., J-F L&#233;nat, M Chaput, L Gailler, A Finizola, S Dumont, A Peltier, P Bach&#232;lery, S Barde-Cabusson, S Byrdina, E. Garaebiti et al, Structure and evolution of an active resurgent dome evidenced by geophysical investigations : The Yenkahe dome-Yasur volcano system (Siwi caldera, Vanuatu), Journal of Volcanology and Geothermal Research, 2015, doi:10.1016/j.jvolgeores.2015.08.021&lt;/p&gt;
&lt;p&gt;Gresse M., J. Vandemeulebrouck, S.Byrdina, G. Chiodini, J.P. Bruno, Changes in CO2 diffuse degassing induced by the passing of seismic waves, Journal of Volcanology and Geothermal Research, 2015 320:12-18&lt;/p&gt;
&lt;p&gt;Byrdina S., J. Vandemeulebrouck, C. Cardellini, A. Legaz, C. Camerlynck, G. Chiodini, T.Lebourg, M. Gresse, G. Motos, P. Bascou, A. Carrier, S. Caliro, 2014, Relations between electrical resistivity, carbon dioxide flux, and self-potential in the shallow hydrothermal system of Solfatara (Phlegrean Fields, Italy), , J. Volcanol. Geotherm. Res, 2014, 283, p. 172-182. ISSN 0377-0273&lt;/p&gt;
&lt;p&gt;Revil A., M. Karaoulis, S. Srivastava and S. Byrdina, 2013, Joint inversion of self-potential and resistivity data to localize the burning front of underground coal fires, Geophysics, 78, 5, B259-B273.&lt;/p&gt;
&lt;p&gt;Byrdina, S., D. Ramos, J. Vandemeulebrouck, P. Masias, A. Revil, A. Finizola, K. Gonzales Zuniga, V. Cruz, Y. Antayhua (2013) Influence of the regional topography on the remote emplacement of hydrothermal systems with examples of Ticsani and Ubinas volcanoes, Southern Peru, &lt;i&gt;Earth Planet. Sci. Lett.&lt;/i&gt;, 365, 152&#8211;164. &lt;a href=&#034;http://hal-insu.archives-ouvertes.fr/docs/00/79/65/27/PDF/Ticsani_SP14.pdf&#034; class=&#034;spip_out&#034; rel=&#034;external&#034;&gt;pdf&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Byrdina, S. C. R&#252;cker, M. Zimmer, S. Friedel, U. Serfling, 2011, Self potential signals preceding variations of fumarole activity at Merapi volcano, Central Java, &lt;i&gt;J. Volcanol. Geotherm. Res&lt;/i&gt;, doi:10.1016/j.jvolgeores.2011.12.002. &lt;a href=&#034;http://hal-insu.archives-ouvertes.fr/docs/00/78/65/20/PDF/gas_SP3.pdf&#034; class=&#034;spip_out&#034; rel=&#034;external&#034;&gt;pdf&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Revil, A et al., Hydrogeology of Stromboli volcano, Aeolian Islands (Italy) from the interpretation of resistivity tomograms, self-potential, soil temperature and soil CO2 concentration measurements, 2011, &lt;i&gt;Geophys. J. Int.&lt;/i&gt; 186, 1078&#8211;1094&lt;/p&gt;
&lt;p&gt;Narteau C., Byrdina S., Shebalin P., Schorlemmer D. Common dependence on stress for the two fundamental laws of statistical seismology, 2009, &lt;i&gt;Nature&lt;/i&gt;, 462, p. 642-645&lt;/p&gt;
&lt;p&gt;Byrdina S., Revil A., Pant S. R., Koirala B. P., Shrestha P. L., Tiwari D. R., Gautam U. P., Shrestha K., Sapkota S. N., Contraires S., Perrier F. Dipolar self-potential anomaly associated with carbon dioxide and radon flux at Syabru-Bensi hot springs in central Nepal, 2009, &lt;i&gt;Journal of Geophysical Research,&lt;/i&gt; 114, B10101.&lt;/p&gt;
&lt;p&gt;Perrier F., P.Richon, S. Byrdina, S. Rajaure, C. France-Lanorde, A. Revil, S. Contraires, S. Bureau U.Gautam, B. Koirala, P. Shrestha, D.R. Tiwari, L. Bollinger, S. N. Sapkota, A direct evidence for high carbon dioxide and radon-222 gas exhalation at the Syabru-Bensi hot springs in Central Nepal, 2009, &lt;i&gt;Earth and Planetary Science Letters, &lt;/i&gt; 278,198-207, doi:10.1016/j.epsl.2008.12.008&lt;/p&gt;
&lt;p&gt;Crespy, A. Revil, A. Linde, N. Byrdina, S. Jardani, A. Boleve, A. Henry, P., Detection and localization of hydromechanical disturbances in a sandbox using the self-potential method, 2008, &lt;i&gt;Journal of Geophysical Research&lt;/i&gt;, 113, B01205-B01300, DOI 10.1029/2007JB005042&lt;/p&gt;
&lt;p&gt;Revil A. et al,, Inner structure of La Fossa di Vulcano (Vulcano Island, southern Tyrrhenian Sea, Italy) revealed by high-resolution electric resistivity tomography coupled with self-potential, temperature, and CO2 diffuse degassing measurements, 2007, &lt;i&gt;Journal of Geophysical Research&lt;/i&gt;, 113, B07207&lt;/p&gt;
&lt;p&gt;Byrdina, S., P. Shebalin, C. Narteau and J-L. Le Mouel, Temporal properties of seismicity and largest earthquakes in SE Carpathians, 2006, &lt;i&gt;Nonlin. Processes Geophys&lt;/i&gt;. 13, 1-11&lt;/p&gt;
&lt;p&gt;Friedel, S., Byrdina, S., Jacobs, F. and Zimmer, M., Self-potential and ground temperature at Merapi volcano prior to its crisis in the rainy season 2000-2001, 2004 &lt;i&gt;Journal of Volcanology and Geothermal Research&lt;/i&gt;, N.134 149-168,&lt;/p&gt;
&lt;p&gt;Byrdina, S., Friedel, S., Wassermann, J. and Zlotnicki, J., Self-potential variations associated with ultra-long-period seismic signals at Merapi volcano, 2003 &lt;i&gt;Geophyical Research Letters&lt;/i&gt;, V 30, N 22, 2156&lt;/p&gt;&lt;/div&gt;
		
		</content:encoded>


		

	</item>
<item xml:lang="fr">
		<title>Projets</title>
		<link>https://www.isterre.fr/annuaire/pages-web-du-personnel/svetlana-byrdina/article/projets.html</link>
		<guid isPermaLink="true">https://www.isterre.fr/annuaire/pages-web-du-personnel/svetlana-byrdina/article/projets.html</guid>
		<dc:date>2014-03-27T17:26:02Z</dc:date>
		<dc:format>text/html</dc:format>
		<dc:language>fr</dc:language>
		<dc:creator>Svetlana BYRDINA</dc:creator>



		<description>
&lt;p&gt;INSU 2020 - 2021 : &#034;D&#233;veloppement de m&#233;thodes d'investigation et &#233;tude du couplage hydrom&#233;canique et de la sismicit&#233; induite pour la g&#233;othermie moyenne enthalpie&#034; (responsable J.L. Got) Pack Ambition Recherche de la r&#233;gion AURA 2022 - maintenant : &#034;M&#233;thodes passives d'estimation des ressources et des risques pour la g&#233;othermie moyenne enthalpie et le chauffage urbain&#034; (responsable J.L. Got) INSU SYSTER 2022-2024 &#171; Mod&#232;le structural du volcan Krafla et de son syst&#232;me g&#233;othermal : contraintes (&#8230;)&lt;/p&gt;


-
&lt;a href="https://www.isterre.fr/annuaire/pages-web-du-personnel/svetlana-byrdina/" rel="directory"&gt;Svetlana BYRDINA&lt;/a&gt;


		</description>


 <content:encoded>&lt;div class='rss_texte'&gt;&lt;ul class=&#034;spip&#034; role=&#034;list&#034;&gt;&lt;li&gt; INSU 2020 - 2021 : &#034;D&#233;veloppement de m&#233;thodes d'investigation et &#233;tude du couplage hydrom&#233;canique et de la sismicit&#233; induite pour la g&#233;othermie moyenne enthalpie&#034; (responsable J.L. Got)&lt;/li&gt;&lt;/ul&gt;&lt;ul class=&#034;spip&#034; role=&#034;list&#034;&gt;&lt;li&gt; Pack Ambition Recherche de la r&#233;gion AURA 2022 - maintenant : &#034;M&#233;thodes passives d'estimation des ressources et des risques pour la g&#233;othermie moyenne enthalpie et le chauffage urbain&#034; (responsable J.L. Got)&lt;/li&gt;&lt;/ul&gt;&lt;ul class=&#034;spip&#034; role=&#034;list&#034;&gt;&lt;li&gt; INSU SYSTER 2022-2024 &#171; Mod&#232;le structural du volcan Krafla et de son syst&#232;me g&#233;othermal : contraintes fournies par l'imagerie magn&#233;tique par drone &#187; (resp. C. Bouligand)&lt;/li&gt;&lt;/ul&gt;&lt;ul class=&#034;spip&#034; role=&#034;list&#034;&gt;&lt;li&gt; INSU 2022-2023 : &#034;&#201;tudes de la structure profonde de volcan Ubinas &#034; (responsable S. Byrdina)&lt;/li&gt;&lt;/ul&gt;&lt;/div&gt;
		
		</content:encoded>


		

	</item>
<item xml:lang="fr">
		<title>Structure et Dynamique des syst&#232;mes hydrothermaux </title>
		<link>https://www.isterre.fr/french/recherche/equipes-de-recherche/geophysique-des-volcans-geothermie/scientific-topics/article/structure-et-dynamique-des-systemes-hydrothermaux.html</link>
		<guid isPermaLink="true">https://www.isterre.fr/french/recherche/equipes-de-recherche/geophysique-des-volcans-geothermie/scientific-topics/article/structure-et-dynamique-des-systemes-hydrothermaux.html</guid>
		<dc:date>2013-03-12T10:49:37Z</dc:date>
		<dc:format>text/html</dc:format>
		<dc:language>fr</dc:language>
		<dc:creator>Jean VANDEMEULEBROUCK, Svetlana BYRDINA</dc:creator>



		<description>
&lt;p&gt;Hydrothermal systems are found at most active volcanoes and their understanding is important for following reasons : Variations in hydrothermal circulation reflect the temporal evolution of the volcanic activity like the reactivation of the magmatic processes or preparation of the volcanic crisis ; Hydrothermal systems may interact with magma ascent leading to explosive hydro-magmatic eruptions ; Their emplacement and geometry are controlled by principal geological structures, therefore (&#8230;)&lt;/p&gt;


-
&lt;a href="https://www.isterre.fr/french/recherche/equipes-de-recherche/geophysique-des-volcans-geothermie/scientific-topics/" rel="directory"&gt;Th&#232;mes de recherche&lt;/a&gt;


		</description>


 <content:encoded>&lt;div class='rss_texte'&gt;&lt;p&gt;Hydrothermal systems are found at most active volcanoes and their understanding is important for following reasons :&lt;/p&gt;
&lt;ol class=&#034;spip&#034; role=&#034;list&#034;&gt;&lt;li&gt; Variations in hydrothermal circulation reflect the temporal evolution of the volcanic activity like the reactivation of the magmatic processes or preparation of the volcanic crisis ;&lt;/li&gt;&lt;li&gt; Hydrothermal systems may interact with magma ascent leading to explosive hydro-magmatic eruptions ;&lt;/li&gt;&lt;li&gt; Their emplacement and geometry are controlled by principal geological structures, therefore the map of the hydrothermal system gives us an image of the buried ancient crater rims, faults or permeable zones ;&lt;/li&gt;&lt;li&gt; Long term hydrothermal circulation can contribute to destabilization of the edifice by weakening the stiffness of the rocks.&lt;/li&gt;&lt;/ol&gt;
&lt;p&gt;We study hydrothermal systems by geophysical methods like the electric self-potential and resistivity methods as well as the measurements of the ground temperature distribution or analysis of ambient seismic noise. Self-potential method allows ground flow systems to be detected and their geometries to be constrained (Figure 1). Knowledge of the ground temperature distribution allows us to couple the models of mass and heat transfer (Figure 2).&lt;/p&gt;
&lt;p&gt; &lt;/p&gt;
&lt;div class='spip_document_6425 spip_document spip_documents spip_document_image spip_documents_center spip_document_center'&gt;
&lt;figure class=&#034;spip_doc_inner&#034;&gt; &lt;a href='https://www.isterre.fr/sites/www.isterre.fr/IMG/jpg/fig3a.jpg' class=&#034;spip_doc_lien mediabox&#034; type=&#034;image/jpeg&#034;&gt; &lt;img src='https://www.isterre.fr/sites/www.isterre.fr/local/cache-vignettes/L500xH373/fig3a-81b6f.jpg?1789513851' width='500' height='373' alt='' /&gt;&lt;/a&gt;
&lt;/figure&gt;
&lt;/div&gt;
&lt;p&gt; &lt;br class='autobr' /&gt;
&lt;strong&gt;Figure 1.&lt;/strong&gt; Fluid circulation at a shallow depth below Solfatara crater of Phlegreen Fields. 2-D Electrical resistivity cross-section along two intersecting profiles compared to a) Google Image draped over a digital elevation model of the area b) a ground temperature distribution. Resistive zones like those below the Bocca Grande fumarole correspond to an upward flow of the carbon dioxide/vapor mixture (dashed line), conductive zone below the Fangaia mud pool indicates the presence of the liquid water (solid line).&lt;/p&gt;
&lt;p&gt; &lt;/p&gt;
&lt;div class='spip_document_4416 spip_document spip_documents spip_document_image spip_documents_left spip_document_left spip_document_avec_legende' data-legende-len=&#034;38&#034; data-legende-lenx=&#034;x&#034;
&gt;
&lt;figure class=&#034;spip_doc_inner&#034;&gt; &lt;img src='https://www.isterre.fr/sites/www.isterre.fr/local/cache-vignettes/L500xH469/ubinas-c327c.jpg?1789513851' width='500' height='469' alt='' /&gt;
&lt;figcaption class='spip_doc_legende'&gt; &lt;div class='spip_doc_descriptif '&gt;Cliquer sur l'image pour l'agrandir.
&lt;/div&gt; &lt;/figcaption&gt;&lt;/figure&gt;
&lt;/div&gt;
&lt;p&gt;&lt;strong&gt;Figure 2. &lt;/strong&gt; Influence of the regional topography on the geometry of the hydrothermal body. We build our study on field data of self-potential (a), spring temperature, and on the results of direct numerical simulation coupling mass and heat transfer inside the volcanic edifice (b). Our numerical results show a significant derivation of hydrothermal system due to gradient of regional topography. &lt;i&gt;Byrdina et al., Earth Planet. Sci. Lett., 2013&lt;/i&gt;&lt;/p&gt;&lt;/div&gt;
		
		</content:encoded>


		

	</item>
<item xml:lang="fr">
		<title>Structure and dynamics of hydrothermal systems</title>
		<link>https://www.isterre.fr/english/research/research-teams/volcano-geophysics-geothermal-research/themes-de-recherche/article/structure-et-dynamique-des-systemes-hydrothermaux.html</link>
		<guid isPermaLink="true">https://www.isterre.fr/english/research/research-teams/volcano-geophysics-geothermal-research/themes-de-recherche/article/structure-et-dynamique-des-systemes-hydrothermaux.html</guid>
		<dc:date>2013-03-12T10:49:37Z</dc:date>
		<dc:format>text/html</dc:format>
		<dc:language>fr</dc:language>
		<dc:creator>Ana&#239;s SCHNEIDER, Jean VANDEMEULEBROUCK, Svetlana BYRDINA</dc:creator>



		<description>
&lt;p&gt;Hydrothermal systems are found at most active volcanoes and their understanding is important for following reasons : Variations in hydrothermal circulation reflect the temporal evolution of the volcanic activity like the reactivation of the magmatic processes or preparation of the volcanic crisis ; Hydrothermal systems may interact with magma ascent leading to explosive hydro-magmatic eruptions ; Their emplacement and geometry are controlled by principal geological structures, therefore (&#8230;)&lt;/p&gt;


-
&lt;a href="https://www.isterre.fr/english/research/research-teams/volcano-geophysics-geothermal-research/themes-de-recherche/" rel="directory"&gt;Scientific topics&lt;/a&gt;


		</description>


 <content:encoded>&lt;div class='rss_texte'&gt;&lt;p&gt;Hydrothermal systems are found at most active volcanoes and their understanding is important for following reasons :&lt;/p&gt;
&lt;ol class=&#034;spip&#034; role=&#034;list&#034;&gt;&lt;li&gt; Variations in hydrothermal circulation reflect the temporal evolution of the volcanic activity like the reactivation of the magmatic processes or preparation of the volcanic crisis ;&lt;/li&gt;&lt;li&gt; Hydrothermal systems may interact with magma ascent leading to explosive hydro-magmatic eruptions ;&lt;/li&gt;&lt;li&gt; Their emplacement and geometry are controlled by principal geological structures, therefore the map of the hydrothermal system gives us an image of the buried ancient crater rims, faults or permeable zones ;&lt;/li&gt;&lt;li&gt; Long term hydrothermal circulation can contribute to destabilization of the edifice by weakening the stiffness of the rocks.&lt;/li&gt;&lt;/ol&gt;
&lt;p&gt;We study hydrothermal systems by geophysical methods like the electric self-potential and resistivity methods as well as the measurements of the ground temperature distribution or analysis of ambient seismic noise. Self-potential method allows ground flow systems to be detected and their geometries to be constrained (Figure 1). Knowledge of the ground temperature distribution allows us to couple the models of mass and heat transfer (Figure 2).&lt;/p&gt;
&lt;p&gt; &lt;/p&gt;
&lt;div class='spip_document_6425 spip_document spip_documents spip_document_image spip_documents_center spip_document_center'&gt;
&lt;figure class=&#034;spip_doc_inner&#034;&gt; &lt;a href='https://www.isterre.fr/sites/www.isterre.fr/IMG/jpg/fig3a.jpg' class=&#034;spip_doc_lien mediabox&#034; type=&#034;image/jpeg&#034;&gt; &lt;img src='https://www.isterre.fr/sites/www.isterre.fr/local/cache-vignettes/L500xH373/fig3a-81b6f.jpg?1789513851' width='500' height='373' alt='' /&gt;&lt;/a&gt;
&lt;/figure&gt;
&lt;/div&gt;
&lt;p&gt; &lt;br class='autobr' /&gt;
&lt;strong&gt;Figure 1.&lt;/strong&gt; Fluid circulation at a shallow depth below Solfatara crater of Phlegreen Fields. 2-D Electrical resistivity cross-section along two intersecting profiles compared to a) Google Image draped over a digital elevation model of the area b) a ground temperature distribution. Resistive zones like those below the Bocca Grande fumarole correspond to an upward flow of the carbon dioxide/vapor mixture (dashed line), conductive zone below the Fangaia mud pool indicates the presence of the liquid water (solid line).&lt;/p&gt;
&lt;p&gt; &lt;/p&gt;
&lt;div class='spip_document_4416 spip_document spip_documents spip_document_image spip_documents_left spip_document_left spip_document_avec_legende' data-legende-len=&#034;38&#034; data-legende-lenx=&#034;x&#034;
&gt;
&lt;figure class=&#034;spip_doc_inner&#034;&gt; &lt;img src='https://www.isterre.fr/sites/www.isterre.fr/local/cache-vignettes/L500xH469/ubinas-c327c.jpg?1789513851' width='500' height='469' alt='' /&gt;
&lt;figcaption class='spip_doc_legende'&gt; &lt;div class='spip_doc_descriptif '&gt;Cliquer sur l'image pour l'agrandir.
&lt;/div&gt; &lt;/figcaption&gt;&lt;/figure&gt;
&lt;/div&gt;
&lt;p&gt;&lt;strong&gt;Figure 2. &lt;/strong&gt; Influence of the regional topography on the geometry of the hydrothermal body. We build our study on field data of self-potential (a), spring temperature, and on the results of direct numerical simulation coupling mass and heat transfer inside the volcanic edifice (b). Our numerical results show a significant derivation of hydrothermal system due to gradient of regional topography. &lt;i&gt;Byrdina et al., Earth Planet. Sci. Lett., 2013&lt;/i&gt;&lt;/p&gt;&lt;/div&gt;
		
		</content:encoded>


		

	</item>
<item xml:lang="fr">
		<title>CV</title>
		<link>https://www.isterre.fr/annuaire/pages-web-du-personnel/svetlana-byrdina/article/1635.html</link>
		<guid isPermaLink="true">https://www.isterre.fr/annuaire/pages-web-du-personnel/svetlana-byrdina/article/1635.html</guid>
		<dc:date>2013-02-06T17:06:21Z</dc:date>
		<dc:format>text/html</dc:format>
		<dc:language>fr</dc:language>
		<dc:creator>Svetlana BYRDINA</dc:creator>



		<description>
&lt;p&gt;&#201;ducation : Doctorat de l'Institut de Physique du Globe de Paris en G&#233;ophysique interne ; 06/07/2004 Dipl&#244;me en g&#233;ophysique (&#233;quivalent &#224; DEA), Universit&#233; technologique de Berlin ; 06/09/1999 Dipl&#244;me en Physique, Universit&#233; Lomonossov de Moscou ; 31/10/1993 &lt;br class='autobr' /&gt;
Exp&#233;rience professionnelle : Ing&#233;nieure de recherche &#224; ISTerre en m&#233;thodes &#233;lectromagn&#233;tiques, responsable d'instrumentation magneto-tellurique. Ing&#233;nieur d'&#233;tudes IRD &#224; OPG Clermont-Ferrand ; utilisation de donn&#233;es d'imagerie radar (&#8230;)&lt;/p&gt;


-
&lt;a href="https://www.isterre.fr/annuaire/pages-web-du-personnel/svetlana-byrdina/" rel="directory"&gt;Svetlana BYRDINA&lt;/a&gt;


		</description>


 <content:encoded>&lt;div class='rss_texte'&gt;&lt;p&gt;&lt;strong&gt;&#201;ducation :&lt;/strong&gt;&lt;/p&gt;
&lt;ul class=&#034;spip&#034; role=&#034;list&#034;&gt;&lt;li&gt; Doctorat de l'Institut de Physique du Globe de Paris en G&#233;ophysique interne ; 06/07/2004&lt;/li&gt;&lt;li&gt; Dipl&#244;me en g&#233;ophysique (&#233;quivalent &#224; DEA), Universit&#233; technologique de Berlin ; 06/09/1999&lt;/li&gt;&lt;li&gt; Dipl&#244;me en Physique, Universit&#233; Lomonossov de Moscou ; 31/10/1993&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;Exp&#233;rience professionnelle :&lt;/strong&gt;&lt;/p&gt;
&lt;ul class=&#034;spip&#034; role=&#034;list&#034;&gt;&lt;li&gt; Ing&#233;nieure de recherche &#224; ISTerre en m&#233;thodes &#233;lectromagn&#233;tiques, responsable d'instrumentation magneto-tellurique.&lt;/li&gt;&lt;li&gt; Ing&#233;nieur d'&#233;tudes IRD &#224; OPG Clermont-Ferrand ; utilisation de donn&#233;es d'imagerie radar satellitaires : 2007-2009.&lt;/li&gt;&lt;li&gt; Stage post-doctoral &#224; l'IPGP dans le cadre de projet europ&#233;en E2C2 (extreme events, causes and consequences) : 2005-2007.&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;Recherche :&lt;/strong&gt;&lt;/p&gt;
&lt;ul class=&#034;spip&#034; role=&#034;list&#034;&gt;&lt;li&gt; &#201;tudes des fluides crustaux par les m&#233;thodes &#233;lectromagn&#233;tiques&lt;/li&gt;&lt;li&gt; L'imagerie des syst&#232;mes hydrothermaux par les m&#233;thodes &#233;lectriques (potentiel spontan&#233; et tomographie de la r&#233;sistivit&#233; &#233;lectrique) et thermiques.&lt;/li&gt;&lt;li&gt; Mod&#233;lisation num&#233;rique de transport des fluides et de chaleur au sein des syst&#232;mes hydrothermaux&lt;/li&gt;&lt;/ul&gt;
&lt;p&gt;&lt;strong&gt;Participation aux projets :&lt;/strong&gt;&lt;/p&gt;
&lt;ul class=&#034;spip&#034; role=&#034;list&#034;&gt;&lt;li&gt; INSU 2020 - 2021 : &#034;D&#233;veloppement de m&#233;thodes d'investigation et &#233;tude du couplage hydrom&#233;canique et de la sismicit&#233; induite pour la g&#233;othermie moyenne enthalpie&#034; (responsable J.L. Got)&lt;/li&gt;&lt;li&gt; Pack Ambition Recherche de la r&#233;gion AURA 2022 - maintenant : &#034;M&#233;thodes passives d'estimation des ressources et des risques pour la g&#233;othermie moyenne enthalpie et le chauffage urbain&#034; (responsable J.L. Got)&lt;/li&gt;&lt;li&gt; INSU SYSTER 2022-2024 &#171; Mod&#232;le structural du volcan Krafla et de son syst&#232;me g&#233;othermal : contraintes fournies par l'imagerie magn&#233;tique par drone &#187; (resp. C. Bouligand)&lt;/li&gt;&lt;li&gt; INSU 2022-2023 : &#034;&#201;tudes de la structure profonde de volcan Ubinas &#034; (responsable S. Byrdina)&lt;/li&gt;&lt;/ul&gt;&lt;/div&gt;
		
		</content:encoded>


		

	</item>



</channel>

</rss>
