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342 results on '"Jousset, Philippe"'

5. Cyclical geothermal unrest as a precursor to Iceland’s 2021 Fagradalsfjall eruption

Author

Flóvenz, Ólafur G., Wang, Rongjiang, Hersir, Gylfi Páll, Dahm, Torsten, Hainzl, Sebastian, Vassileva, Magdalena, Drouin, Vincent, Heimann, Sebastian, Isken, Marius Paul, Gudnason, Egill Á., Ágústsson, Kristján, Ágústsdóttir, Thorbjörg, Horálek, Josef, Motagh, Mahdi, Walter, Thomas R., Rivalta, Eleonora, Jousset, Philippe, Krawczyk, Charlotte M., and Milkereit, Claus

Published
2022
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11. Low incidence of SARS-CoV-2, risk factors of mortality and the course of illness in the French national cohort of dialysis patients

Author

Abbassi, Abdelhamid, Debure, Alain, Guerraoui, Abdallah, Benmoussa, Abdelatif, Hamani, Abdelaziz, Ziane, Abdelaziz, Nefti, Abdelhamid, Hadj, Abdelkader, El Amari, Abderrahim, Ghazali, Abderrahmane, Abd El Fatah Mohamed, Abo Bakr, Laradi, Achour, Ben Ahmed, Adel, Sahar, Adel, Pillet, Adele, Lacraz, Adeline, Moinat, Adnan, Massoumi, Afshin, Pardon, Agathe, Beaudoin, Agnes Caillette, Debout, Agnes Chapelet, Mariot, Agnes, Rachi, Ahmed, Afiani, Aida, Boula, Aime Remy, Jalaby, Al, Cremault, Alain, Fournier, Alain, Jeanson, Alain, Lyon, Alain, Nony, Alain, Robert, Alain, Slingeneyer, Alain, Labatide, Alanor Agnes, Sartorius, Albane Brodin, Bensman, Albert, Fournier, Albert, Ranlin, Alex, Sandor, Alex Vido, Colombo, Alexandra, Duhem, Alexandra, Stancu, Alexandra, Dufay, Alexandre, Dumoulin, Alexandre, Ebel, Alexandre, Klein, Alexandre, Martin, Alexandre, Mouneimne, Alexandre, Seidowsky, Alexandre, De Martin, Alfio, Zannier, Alfredo, Aizel, Ali, Hafi, Ali, Diddaoui, Ali Zineddine, Heyani, Alim, Mocanu, Alina, Preda, Alina, Hafi, Aline, Talaszka, Aline, Duquesne, Alyette, Amaouche, Amar, Ghemmour, Amel, Simon, Amelie, Skalli, Amina, Boukadida, Amine, Ragab Eid, Amr Ekhlas, Fedorca, Ana, Baillet, Anabelle, Poyet, Anais, Giorgita, Ancuta Bouffandeau, Ratsimbazafy, Anderson, Pruna, Andre, Argiles, Angel, Testa, Angelo, Vandooren, Ann Karolien, Jolivot, Anne, Labadens, Anne Kolko, Lataste, Anne, Maisin, Anne, Paris, Anne, Sechet, Anne, Wuillai, Anne, Heng, Anne Elisabeth, Josse, Anne Gaelle, Querard, Anne Helene, Reboux, Anne Helene, Adra, Anne Laure, Faller, Anne Laure, Leclerc, Anne Laure, Poitou, Anne Laure, Manucci, Annie Lahoche, Jacquet, Antoine, Pommereau, Antoine, Thierry, Antoine, Adem, Arezki, Chapelet, Arielle, Del Bello, Arnaud, Delezire, Arnaud, Garnier, Arnaud, Guerard, Arnaud, Klisnick, Arnaud, Lionet, Arnaud, Roccabianca, Arnaud, Stolz, Arnaud, Capdeville, Arthur, Allal, Asma, Alrifai, Assem, Diarrassouba, Assetou, Djema, Assia, Carre, Assia Ferhat, Dubrasquet, Astrid Godron, Elmrabet, Atman Haddj, Jegado, Audrey, Thomas, Aurelia Bertholet, Salandre, Aurelie Davourie, Pajot, Aurelie, Lorthioir, Aurelien, Tiple, Aurelien, Sury, Aurore, Abokasem, Ayman, Sarraj, Ayman, Henaoui, Bachir, Chaghouri, Baher, Wehbe, Bassem, Ball, Beatrice, Viron, Beatrice, Issad, Belkassem, Corne, Benedicte Hodemon, Janbon, Benedicte, Deroure, Benjamin, Savenkoff, Benjamin, Jonon, Benoit, Vendrely, Benoit, Djelaleddine, Benyakoub, Ohry, Bernard, Painchart, Bernard, Strullu, Bernard, Temperville, Bernard, Ebikili, Bertin, Hacq, Bertrand, Morel, Bertrand, Aoun, Bilal, Muniz, Blanca, Chlih, Bouchra, Amara, Brahim, Mayor, Brice, Gilson, Brigitte, Llanas, Brigitte, Zins, Brigitte, Bourgeon, Bruno, Coevoet, Bruno, Guery, Bruno, Legallicier, Bruno, Paris, Bruno, Ranchin, Bruno, Seigneuric, Bruno, Dita, Camelia Ghiciuc, Prelipcean, Camelia, Hottelart, Carine Achard, Diet, Carine, Frangie, Carlos, Vela, Carlos, Muresan, Carmina, Deprele, Carole, Araujo, Caroline, Bidault, Caroline, Creput, Caroline, Delclaux, Caroline, Du Halgouet, Caroline, Favennec, Caroline, Freguin, Caroline, Vercel, Caroline Gourraud, Mesguen, Caroline, Obama, Caroline Ndomo, Poitou, Caroline, Dirhold, Caroline Preissig, Roubiou, Caroline, Albert, Catherine, Bessin, Catherine, De Marion Gaja, Catherine, Godart, Catherine, Lasseur, Catherine, Leocardi, Catherine, Lumbroso, Catherine, Melander, Catherine, Michel, Catherine, Maurouard, Catherine Quere, Rouannet, Catherine, Taddei, Catherine, Verove, Cathy, Guiraud, Cecile, Tafelin, Cecile, Baron, Cecile Turc, Formet, Cedric, Pinier, Cedric, De Ste Foy, Celia Lessore, Granolleras, Celine, Bennini, Chaouki, Cartou, Charles, Chazot, Charles, Jouzel, Charlotte, Badid, Cherif, Roubicek, Christa, Viaud, Christel, Verrier, Christelle, Chuet, Christian, Combe, Christian, Dabot, Christian, Duvic, Christian, Emond, Christian, Lagarde, Christian, Lamotte, Christian, Pain, Christian, Mousson, Christiane, Lorriaux, Christie, Beauchamp, Christine, Fumeron, Christine, Le Gurun, Christine, Leroy, Christine, Pietrement, Christine, Richer, Christine, Bouaka, Christophe, Charasse, Christophe, Goupy, Christophe, Ridel, Christophe, Castrale, Cindy, Detourne, Cindy, Francois, Clair, Presne, Claire, Trivin, Claire, Von Kotze, Clarissa, Bernard, Claude, Bonniol, Claude, Desvergnes, Claude, Raharivelina, Claude, Nistor, Claudia, Gueret, Claudine, Lloret, Claudine, Saltiel, Claudine, Rosati, Clelia, Rabate, Clementine, Stanescu, Corina, Ferrandini, Corinne, Guibergia, Corinne, Lemoine, Corinne, Passeron, Corinne, Kahil, Cynthia, Garrouste, Cyril, Van, Cyril Vo, Jolimoy, Cyrille, Kesraoui, Dalila, Jolly, Damien, Thibaudin, Damien, Teboulle, Dan, Daubresse, Daniel, Louvet, Daniel, Rasamimanantsoa, Daniel, Toledano, Daniel, Babici, Daniela, David, Daniela, Dincu, Daniela, Bruno, Danielle, May, Delia, Haussaire, Delphine, Viprey, Delphine Henriet, Bugnon, Denis, Fouque, Denis, Morin, Denis, Nour, Derradji, Mahmoud, Diab Mohamed, Cristescu, Diana Istrati, Aguilera, Didier, Coste, Didier, Hamel, Didier, Le Chapois, Didier, Testou, Didier, Erbilgin, Dilaver, Dahmane, Djamal, Quang, Doan Bui, Bertrand, Dominique, Besnier, Dominique, Blanchier, Dominique, Briffa, Dominique, Caux, Dominique, Durand, Dominique, Fleury, Dominique, Guerrot, Dominique, Hestin, Dominique, Jaubert, Dominique, Joly, Dominique, Lombart, Dominique, Pagniez, Dominique, Pierre, Dominique, Schohn, Dominique, Ikonga, Donatien, Visanica, Dorina, Bazin, Dorothee, Boury, Edouard, Maksour, Edouard, Agbonon, Ekoue, Harrami, Elarbi, Marcu, Elena, Tudorache, Elena, Caniot, Elisabeth, Semjen, Elisabeth, Tomkiewicz, Elisabeth, Scheidt, Elise, Gaboriau, Elke, Lamouroux, Elodie, Guiard, Elsa, Passos, Elsa Martin, Nsembani, Emerson, Fache, Emilie, Kalbacher, Emilie, Pambrun, Emilie, Pincon, Emilie, Launay, Emma Allain, Baron, Emmanuel, Dupuis, Emmanuel, Villar, Emmanuel, Charlin, Emmanuelle, Hecquet, Emmanuelle, Kohler, Emmanuelle, Laurain, Emmanuelle, Rosier, Emmanuelle, Figueroa, Enrique, Azoulay, Eric, Canivet, Eric, Daugas, Eric, Gauthier, Eric, Laruelle, Eric, Le Guen, Eric, Legrand, Eric, Moumas, Eric, Postec, Eric, Prinz, Eric, Renaudineau, Eric, Desport, Estelle, Sutra, Estelle Ricard, Berard, Etienne, Ged, Etienne, Robin, Etienne, Vilaine, Eve, Bargas, Evelyne, Namara, Evelyne Mac, Combarnous, François, Yazbeck, Fatima, Gerard, Fabien, Metivier, Fabien, Parazols, Fabien, Soulis, Fabien, Garnier, Fabrice, Messaoudene, Fadhila Pech, Haidar, Fadi, Boullenger, Fanny, Lepeytre, Fanny, Leroy, Fanny, Frejate, Fares, Bellahsene, Farid, Bellhasene, Farid, Saidani, Farid, Toure, Fatouma, Kriaa, Faycal, Nemmar, Fazia, Vetromile, Fernando, Chalmin, Florence, Lucats, Florence, Sens, Florence, Villemain, Florence, Plasse, Florent, Lebhour, Fouad, Schillinger, Francis, Berge, Franck, Bourdon, Franck, Bridoux, Franck, Reynaud, Franck, Babinet, Francois, Basse, Francois, Chantrel, Francois, Clair, Francois, Coulomb, Francois, De Cornelissen, Francois, Glowacki, Francois, Marchal, Francois, Maurice, Francois, Nobili, Francois, Pourreau, Francois, Provot, Francois, Amani, Francois Roux, Broux, Francoise, Bulte, Francoise, Heibel, Francoise, Leonetti, Francoise, Schott, Francoise Moussion, Le Roy, Frank, Besson, Frederic, Lavainne, Frederic, Tollis, Frederic, Bocquentin, Frederique, Meeus, Frederique, Vecina, Frederique, Von Ey, Friederike, Balit, Gabriel, Choukroun, Gabriel, Gruget, Gabriel, Huchard, Gabriel, Golea, Gabriella, Duneau, Gabrielle, Lefrancois, Gaelle, Pelle, Gaelle, Lebrun, Gaetan, Dumont, Genevieve, Brillet, Georges, Deschenes, Georges, Mourad, Georges, Stamatakis, Georges, Cazajous, Geraldine, D'ythurbide, Geraldine, Wiart, Geraldine Robitaille, Cardon, Gerard, Champion, Gerard, Deschodt, Gerard, Mangenot, Gerard, Motte, Gerard, Schortgen, Gerard, Boulahia, Ghada, Maakaroun, Ghassan, Michel, Ghylene Bourdat, Zanetta, Gilbert, Hufnagel, Gilles, Messier, Gilles, Piccoli, Giorgina, Desvergnes, Gregoire Couvrat, Bobrie, Guillaume, Bonnard, Guillaume, Clement, Guillaume, Jean, Guillaume, Queffeulou, Guillaume, Seret, Guillaume, Vernin, Guillaume, Delavaud, Guy, Lambrey, Guy, Rostoker, Guy, Poussard, Gwenaelle, Kesler, Gwenaelle Roussey, Leon, H., Aboubekr, Habib, Boulechfar, Hacene, Sekhri, Hacene, Hebibi, Hadia, Benalia, Hadjira, Fessi, Hafed, Atchia, Hafsabhai, Bittar, Haiat, Maiza, Hakim, Mazouz, Hakim, El Ali, Hamid, Bougrida, Hammouche, Van Der Pijl, Hans, Lokmane, Hassan, Izzedine, Hassane, Adda, Hassen, De Preneuf, Helene, Leray, Helene, Philippot, Helene, Boulanger, Henri, Merault, Henri, Renaud, Henri, Bonarek, Herve, Maheut, Herve, Nzeyimana, Hilaire, Mehama, Hocine, Zaidi, Hocine, Weclawiak, Hugo, Flodrops, Hugues, Karaaslan, Huseyin, Haskour, Ibrahim, Belhadj, Ihssen, Almoubarak, Imad, Haddad, Imad, Castellano, Ines, Ferrandiz, Ines, Daniliuc, Ioana, Darie, Ioana, Enache, Ioana, Prunescu, Ionut, Djiconkpode, Irenee, Shahapuni, Irina, Bouchoule, Isabelle, Devriendt, Isabelle, Kazes, Isabelle, Kolb, Isabelle, Landru, Isabelle, Poli, Isabelle, Rey, Isabelle, Segalen, Isabelle, Selcer, Isabelle, Vernier, Isabelle, Vrillon, Isabelle, Guenifi, Ismahane, Gheerbrandt, J. Dominique, Potier, Jacky, Becart, Jacques, Cledes, Jacques, Ducros, Jacques, Duvic, Jacques, Fourcade, Jacques, Gaultier, Jacques, Jurine, Jacques, Lebleu, Jacques, Ollier, Jacques, Charles, Jacques Ibsen, Yazji, Jamal, Mansour, Janette, Arnautou, Jean, Brocard, Jean, Carolfi, Jean, Montoriol, Jean, Gouin, Jean Baptiste, Palcoux, Jean Bernard, Bendini, Jean Christophe, Aldigier, Jean Claude, Alphonse, Jean Claude, Delbet, Jean Daniel, Bonne, Jean Francois, Cantin, Jean Francois, De Fremont, Jean Francois, Dessassis, Jean Francois, Subra, Jean Francois, Valentin, Jean Francois, Verdier, Jean Francois, Dion, Jean Jacques, Haultier, Jean Jacques, Montseny, Jean Jacques, Bacri, Jean Louis, Bouchet, Jean Louis, Mahe, Jean Luc, Chalopin, Jean Marc, Gabriel, Jean Marc, Hurot, Jean Marc, Lanau, Jean Marc, Batho, Jean Marie, Coulibaly, Jean Marie, Hardin, Jean Michel, Marc, Jean Michel, Poux, Jean Michel, Rebibou, Jean Michel, Tivollier, Jean Michel, Ottavioli, Jean Noel, Faucon, Jean Paul, Imiela, Jean Paul, Jaulin, Jean Paul, Masselot, Jean Paul, Ortiz, Jean Paul, Bourdenx, Jean Philippe, Devaux, Jean Philippe, Hammelin, Jean Philippe, Rivory, Jean Pierre, Wauquier, Jean Pierre, Larue, Jean Rene, Mondain, Jean Rene, Borde, Jean Sebastien, Virot, Jean Simon, Bosc, Jean Yves, Achiche, Jedjiga, Parasote, Jennifer, Diolez, Jeremie, Harambat, Jerome, Potier, Jerome, Sampol, Jerome, Mustel, Jihad, Lefevre, Jean Jacques, Maurizi, Jocelyne, Gamberoni, Joel, Claudeon, Joelle, Terzic, Joelle, Rogol, Joffrey, Sayegh, Johnny, Cardozo, Jorge, Brasseur, Jose, Guiserix, Jose, Barsumau, Joseph, Albaret, Julie, Beaume, Julie, Attias, Julie Sohier, Dehay, Julien, Hogan, Julien, Journet, Julien, Ott, Julien, Baleynaud, Juliette, Bacchetta, Justine, Faucher, Justine, Yousfi, Kamel, Dardim, Karim, Clabault, Karine, Moreau, Karine, Thomas, Kedna, Sirajedine, Khaled, Chedid, Khalil, El Kaeoui, Khalil, El Karoui, Khalil, Bouachi, Khedidja, Hue, Kheira, El Nasser, Khuzama, Akposso, Kodso, Kunz, Kristian, Bijak, Krzysztof, Kihal, Lilia, Rasoloarijaona, L., Harbouche, Laid, Bencheikh, Larbi, Lamriben, Larbie, Hanafi, Latifa, Parvez, Laura Braun, Champion, Laure, Croze, Laure, Eprinchard, Laure, Patrier, Laure, Nicolet, Laurence, Vrigneaud, Laurence, Duflot, Laurent, Mackaya, Leandre, Chenine, Leila, Odry, Leon, Tamiji, Lili Taghipour, Bouzar, Lilia Antri, Nga Messi, Liliane Ngango, Le Mouellic, Lionel, Mandart, Lise, Weis, Lise, Pouteau, Lise Marie, Georgieva, Lora, Vitanova, Lorita, Chalabi, Lotfi, Delvallez, Luc, Frimat, Luc, Fromentin, Luc, Marty, Luc, Monjot, Luc, Spataru, Luciana, Bessenay, Lucie, Boissinot, Lucie, Wajsbrot, Lucie, Rakoff, Lucien, Lebourg, Ludivine, Perez, Lydie, Lafage, Lyliane, Azzouz, Lynda, Dumoulin, Madeleine, Ouziala, Messaoud, Joseph, Maan, Brahimi, Mabrouk, Fat, Maeva Wong, Fort, Magalie, Nakhla, Magued, Abtahi, Mahdi, Albadawy, Mahen, Alouach, Mahmoud, Mezghani, Mahmoud, Daroux, Maite, Boukelmoune, Maklouf, Dhib, Malek, Touam, Malik, Dubau, Malina, Balde, Mamadou, Khoa, Man Nguyen, Ismer, Manfred, Mehdi, Manolie, Laforet, Manon, Bouiller, Marc, Eugene, Marc, Fila, Marc, Hazzan, Marc, Kribs, Marc, Ladriere, Marc, Lebot, Marc, Padilla, Marc, Souid, Marc, Marraoui, Marcel, Burbach, Maren, Manescu, Maria, Noguera Gonzalez, Maria Eugenia, Revenco, Mariana, Terrasse, Marianne, Essi, Marie, Macher, Marie Alice, Nogier, Marie Beatrice, Cazin, Marie Cecile, Schweitzer Camoin, Marie Christine, Thouret, Marie Christine, Hannaert, Marie Claude, Servel, Marie France, Chabannier, Marie Helene, Coudert Krier, Marie Jeanne, Catoliquot, Marie Noelle, Guillodo, Marie Paule, Gavard, Marie Sophie, Vairon Codaccioni, Marie Xaviere, Rabec, Marina, Freist, Marine, Gauthier, Marion, Lemaire, Marion, Mehrenberger, Marion, Venot, Marion, Pongas, Marios, Diant, Marlene Beaubrun, Levannier, Martial, Bertaux, Martine, Jablonski, Mathieu, Sacquepee, Mathieu, Dargelos, Mathilde, Lemoine, Mathilde, Tamain, Mathilde, Monge, Matthieu, Reberolle, Matthieu, Cousin, Maud, Francois, Maud, Baron, Maurice, Hoffmann, Maxime, Ingwiller, Maxime, Touzot, Maxime, Mohajer, Mederick, Maaz, Mehadji, Hanoy, Melanie, Marroc, Melanie, Cuny, Melodie, Van Der Straaten, Menno, Serveaux, Mf., Basteri, Michel, Chong, Michel Fen, Hecht, Michel, Massad, Michel, Normand, Michel, Olmer, Michel, Tolani, Michel, Tsimaratos, Michel, Hemery, Michele, Kessler, Michele, Esposito, Miguel, Shenouda, Milad, Kareche, Mimi, Khalili, Mina, Diaconita, Mirella, Rifard, Mohamad Khair, Aladib, Mohamed, Belmouaz, Mohamed, Brahim, Mohamed, Diouani, Mohamed, Cherif, Mohamed Fodil, Jamali, Mohamed, Maghlaoua, Mohamed, Meddeb, Mohamed, Ramdane, Mohamed, Rifaat, Mohamed, Islam, Mohamed Sharifull, Abbade, Mohamed Adnan, Amrandi, Mokhtar, Chawki, Mokhtar, Ciobotaru, Monica, Indrieis, Monica, Chanas, Monique, Hoarau, Monique, Tomeh, Monzer, Bellou, Moufida, Bouzernidj, Mouloud, Ammor, Mounia, Guergour, Mounir, Benzakour, Mountassir, Hachicha, Mourad, Coulibaly, Moussa, Smati, Mustafa, Al Morabiti, Mustapha, Amirou, Mustapha, Isnard, Myriam, Pastural, Myriam, Pujo, Myriam, Boumendjel, Nourredine, Majbri, Nabil, Goumri, Nabila, Mingat, Nadege, Bassilios, Nader, Kerkeni, Nadia, Sedrati, Nadia, Soltani, Nadia, Maroun, Nadine, Neyrat, Nadine, Luang, Nahn, El Esper, Najeh, Ammar, Naji, Ghali, Nasredine, Hamdini, Nasser, Noel, Natacha, Potelune, Natacha, Maisonneuve, Nathalie, Pertuiset, Nathalie, Raynal, Nathalie, Vittoz, Nathalie, Terki, Nazim, Castin, Nelly, Nankeu, Nestor, Bouvier, Nicolas, Keller, Nicolas, Legros, Nicolas, Peters, Nicolas, Quirin, Nicolas, Lefrancois, Nicole, Monnier, Nicole, Rance, Nicole, Bruckmann, Niels, Mertens, Noel, Lorcy, Nolwenn, Gilbert, Olivia, Coldefy, Olivier, Drouineau, Olivier, Dunand, Olivier, Fritz, Olivier, Imhoff, Olivier, Kourilsky, Olivier, Lavelle, Olivier, Moranne, Olivier, Papin, Olivier, Roques, Olivier, Le Maner, Ophelie, Benbrahim, Oussamah Fikri, Erina Torres, Pablo Antonio, Urena Torres, Pablo Antonio, Malvezzi, Paolo, Bindi, Pascal, Cluzel, Pascal, Fontanier, Pascal, Wheatley, Pascal, Depraetre, Pascale, Dubosq, Pascale, Halin, Pascale, Sebahoun, Pascale, Siohan, Pascale, Testevuide, Pascale, Deteix, Patrice, Nolen, Patrice, Hue, Patricia, Lemarchand, Patricia, Donnadieu, Patrick, Fievet, Patrick, Fohrer, Patrick, Francais, Patrick, Giraud, Patrick, Hallonet, Patrick, Henri, Patrick, Michaut, Patrick, Niaudet, Patrick, Pauly, Patrick, Thomas, Patrick, Deleaval, Patrik, Finielz, Paul, Stroumza, Paul, Yverneau, Paule Hardy, Caillard, Pauline, Palacin, Pedro, Aubertin, Perrine, Attias, Philippe, Brunet, Philippe, Chauveau, Philippe, Coindre, Philippe, Coste, Philippe, Dubot, Philippe, Fournier, Philippe, Hiernaux, Philippe, Jousset, Philippe, Yue Wah, Philippe Lan, Lang, Philippe, Le Cacheux, Philippe, Dupont, Philippe Martin, Michel, Philippe, Mirgaine, Philippe, Moriniere, Philippe, Nicoud, Philippe, Rieu, Philippe, Rousseau, Philippe, Sporer, Philippe, Thorel, Philippe, Vanhille, Philippe, Vigeral, Philippe, Zaoui, Philippe, Bataille, Pierre, Brignon, Pierre, Filipozzi, Pierre, Housset, Pierre, Peyronnet, Pierre, Ramperez, Pierre, Vautrin, Pierre, Michel, Pierre Alexandre, Westeel, Pierre Francois, Carron, Pierre Louis, Durand, Pierre Yves, Parent, Pierrot, Seniuta, Piotr, Kuentz, François, Fraoui, Rabah, Tetaz, Rachel, Amaria, Rachid, Bourouma, Rachid, Djeffal, Rachid, Nebbad, Rachida, Allal, Radia, Dimulescu, Radu, Boustani, Rafaat, Mesbah, Rafik, Makdassi, Raifat, Diab, Raji, Puslenghea, Raluca, Roura, Raoul, Khayat, Rateb, Azar, Raymond, Frayssinet, Raymond, Monkam, Regine, Boulahrouz, Rehouni, Boudet, Remi, Demontis, Renato, Gansey, Renaud, Cuvelier, Rene, Schmitt, Renee, Noordally, Reschad, Binaut, Reynald, Latif, Rezkallah, Dufresne, Richard, Montagnac, Richard, Reade, Richard, Genin, Robert, Novo, Robert, Fickl, Rocsana, Dufresne, Roger, Magnol, Roger, Issautier, Roland, Mortelette, Romain, Delaval, Ronan, Lohro, Ronan, M'barga, Roseline, Beau, S., Dupuis, Clémentine, Vidil, Marie Jacques, Hacini, Sabria, Dahmoune, Said, Lekhal, Saliha, Sakso, Salima Ahriz, Saksi, Salima, Citarda, Salvatore, Boubenider, Samir, Kassis, Samuel, Verhille, Sandra, Genestier, Sandrine, Muller, Sandrine, Krid, Saoussen, Richter, Sarah, Delbes, Sebastien, Mailliez, Sebastien, Veillon, Sebastien, Nony, Sébastien, Benarbia, Seddick, Beaudreuil, Severine, Benyaghla, Sidi Ali, Duquennoy, Simon, Baluta, Simona, Boncila, Simona, Mzoughi, Sonia, Ribal, Sonia, Acamer, Sophie, Chauvet, Sophie, Girerd, Sophie, Ozenne, Sophie, Parahy, Sophie, Duval, Sophie Rubens, Taque, Sophie, Menouer, Soraya, Chargui, Soumaya, Bataille, Stanislas, Barbier, Stephane, Billion, Stephane, Roueff, Stephane, Torner, Stephane, Martin, Stephane Jean, Coupel, Stephanie, Cloarec, Sylvie, Lavaud, Sylvie, Leou, Sylvie, Chatelet, T., Onesta, Tania, Benhabib, Tassadit, Bensalem, Tayeb, Dimulescu, Theodora, Sawadogo, Theophile, Hitze, Thibault Dolley, Baranger, Thierry, Boudemaghe, Thierry, Hannedouche, Thierry, Krummel, Thierry, Lobbedez, Thierry, Milcent, Thierry, Dervaux, Thomas, Guincestre, Thomas, Kofman, Thomas, Raphael, Thomas, Sadreux, Thomas, Ulinski, Tim, Roger, Tiphaine Guyon, Serrato, Tomas, Kofman, Tomek, Wong, Tony, Boubia, Toufik, Gbindoun, Ubald Assogba, Khuzaie, Usama, Caudwell, Valerie, Chatelet, Valerie, Crougneau, Valerie, De Precigout, Valerie, Drouillat, Valerie, Galantine, Valerie, Hugot, Valerie Granveau, Leroy, Valerie, Boubia, Veronique, Falque, Veronique, Fournier, Veronique, Queron, Veronique, Viviani, Veronique, Gueuttin, Victor, Panescu, Victor, Calonge, Victorio Menoyo, Nguyen, Viet, Allot, Vincent, Delattre, Vincent, Leduc, Vincent, Pradier, Vincent, Aglae, Violaine Emal, Badulescu, Viorica, Molina, Virginia, Besson, Virginie, Chaigne, Virginie, Jaber, Waddah, Boudi, Wael, El Haggan, Wael, Guillon, Wen Qin, Aneni, Wided Tabbi, Hanf, William, Kohn, Wladimir, Bellenfant, Xavier, Gaudry, Xavier Moreau, Delmas, Yahsou, Knefati, Yannick, Saingra, Yannick, Tirolien, Yannick, Mann, Youssef, Brunak, Yvan, Dimitrov, Yves, Doussy, Yves, Tanter, Yves, Benabid, Zaid, Soltani, Zaara, Boukerroucha, Zacharia, Takla, Zafer, Ramanantsialonina, Zana, Dickson, Zara, Tubail, Zead, Pour, Zoe Koochaki, Boukhalfa, Zohra, Jacquot, Zohra, Couchoud, Cécile, Bayer, Florian, Ayav, Carole, Béchade, Clémence, Chantrel, François, Galland, Roula, Hourmant, Maryvonne, and Mercadal, Lucile

Published
2020
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12.  Long-term monitoring of seismic and volcanic activity using distributed fibre optic sensing: examples in Iceland (2015-2024) and Italy (2018-2024).

Author

Jousset, Philippe, primary, Hersir, Gylfi, additional, Currenti, Gilda, additional, Wollin, Christopher, additional, Díaz-Meza, Sergio, additional, Allegra, Martina, additional, Maass, Regina, additional, Prestifilippo, Michele, additional, Gudnason, Egill, additional, Napoli, Rosalba, additional, and Krawczyk, Charlotte, additional

Published
2024
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14. Ocean Bottom Seismometer Clock Correction using Ambient Seismic Noise

Author

Naranjo, D. (author), Parisi, Laura (author), Jónsson, Sigurjón (author), Jousset, Philippe (author), Werthmüller, D. (author), Weemstra, C. (author), Naranjo, D. (author), Parisi, Laura (author), Jónsson, Sigurjón (author), Jousset, Philippe (author), Werthmüller, D. (author), and Weemstra, C. (author)

Abstract

Ocean-bottom seismometers (OBSs) are equipped with seismic sensors that record acoustic and seismic events at the seafloor, which makes them suitable for investigating tectonic structures capable of generating earthquakes offshore. One critical parameter to obtain accurate earthquake locations is the absolute time of the incoming seismic signals recorded by the OBSs. It is, however, not possible to synchronize the internal clocks of the OBSs with a known reference time, given that GNSS signals are unable to reach the instrument at the sea bottom. To address this issue, here we introduce a new method to synchronize the clocks of large-scale OBS deployments. Our approach relies on the theoretical time-symmetry of time-lapse (averaged) crosscorrelations of ambient seismic noise. Deviations from symmetry are attributed to clock errors. This implies that the recovered clock errors will be obscured by lapse crosscorrelations' deviations from symmetry that are not due to clock errors. Non-uniform surface wave illumination patterns are arguably the most notable source which breaks the time symmetry. Using field data, we demonstrate that the adverse effects of non-uniform illumination patterns on the recovered clock errors can be mitigated by means of a weighted least-squares inversion that is based on station-station distances. In addition, our methodology permits the recovery of timing errors at the time of deployment of the OBSs. This error can be attributed to either: i) a wrong initial time synchronization of the OBS or ii) a timing error induced by changing temperature and pressure conditions while the OBS is sunk to the ocean floor. The methodology is implemented in an open-source Python package named OCloC, and we applied it to the OBS recordings acquired in the context of the IMAGE project in and around Reykjanes, Iceland. As expected, most OBSs suffered from clock drift. Surprisingly, we found incurred timing errors at the time of deployment for most of the OBSs., Applied Geophysics and Petrophysics

Published
2024
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18. The Global DAS Month of February 2023

Author

Wuestefeld, Andreas, primary, Spica, Zack J., additional, Aderhold, Kasey, additional, Huang, Hsin-Hua, additional, Ma, Kuo-Fong, additional, Lai, Voon Hui, additional, Miller, Meghan, additional, Urmantseva, Lena, additional, Zapf, Daniel, additional, Bowden, Daniel C., additional, Edme, Pascal, additional, Kiers, Tjeerd, additional, Rinaldi, Antonio P., additional, Tuinstra, Katinka, additional, Jestin, Camille, additional, Diaz-Meza, Sergio, additional, Jousset, Philippe, additional, Wollin, Christopher, additional, Ugalde, Arantza, additional, Ruiz Barajas, Sandra, additional, Gaite, Beatriz, additional, Currenti, Gilda, additional, Prestifilippo, Michele, additional, Araki, Eiichiro, additional, Tonegawa, Takashi, additional, de Ridder, Sjoerd, additional, Nowacki, Andy, additional, Lindner, Fabian, additional, Schoenball, Martin, additional, Wetter, Christoph, additional, Zhu, Hong-Hu, additional, Baird, Alan F., additional, Rørstadbotnen, Robin A., additional, Ajo-Franklin, Jonathan, additional, Ma, Yuanyuan, additional, Abbott, Robert E., additional, Hodgkinson, Kathleen M., additional, Porritt, Robert W., additional, Stanciu, Christian, additional, Podrasky, Agatha, additional, Hill, David, additional, Biondi, Biondo, additional, Yuan, Siyuan, additional, Luo, Bin, additional, Nikitin, Sergei, additional, Morten, Jan Petter, additional, Dumitru, Vlad-Andrei, additional, Lienhart, Werner, additional, Cunningham, Erin, additional, and Wang, Herbert, additional

Published
2023
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22. Multiphasic effects of blood pressure on survival in hemodialysis patients

Author

Attroun, Lahcene, Azar, Raymond, Bories, Pierre, Caillette-Beaudouin, Agnès, Canaud, Bernard, Choukroun, Gabriel, Esnault, Vincent, Hammadi, Mohamed, Hannedouche, Thierry, Henri, Patrick, Honoré, Philippe, Issad, Belkacem, Joly, Dominique, Laruelle, Eric, Le Mao, Gildas, Marchais, Sylvain, Vendrely, Benoît, Zaoui, Philippe, Aazib, Larbi, Abbassi, Abdelhamid, Abdullah, Elias, Abou-Bekr, Habib, Achard-Hottelart, Carine, Achin, Geneviève, Ahriz-Saksi, Salima, Albadawy, Mahen, Albert, Catherine, Albitar, Samir, Alenabi, Farideh, Allouache, Mahmoud, Amaouche, Amar, Amara, Brahim, Ammor, Mounia, Ang, Kim Seng, Assogba, Ubald, Azzouz, Lynda, Badid, Chérif, Baleynaud, Juliette, Bargas, Evelyne, Baron, Emmanuel, Basse, François, Batho, Jean-Marie, Bauwens, Marc, Bazin, Dorothée, Aicha, Abdelmajid Ben, Benarbia, Seddik, Bencheikh, Larbi, Bendini, Jean-Christophe, Benyakoub, Djeleddine, Bergua, Dominique, Bessin, Catherine, Billaux, Luc, Billion, Stéphane, Bittar, Haïat, Bocquet, Jean-Paul, Bonarek, Hervé, Bonniol, Claude, Borde, Jean-Sébastien, Boubenider, Samir, Boudet, Rémi, Boudi, Waël, Boudier, Loreley, Bouguern, Djema, Boukelmoune, M, Boukhalfa, Fatha Zohra, Boulanger, Henri, Bouvier, Philippe, Bouzernidj, Mouloud, Bounab, Mohamed Brahim, Brasseur, José, Braun, Laura, Briet, Marie, Bui-Quang, Doan, Canet, Sebastien, Canivet, Eric, Cardozo, Jorge, Cardozo, Carlos, Chaghouri, Baher, Chawki, Mokhtar, Chazot, Charles, Choulet, Philippe, Clavel, Pierre, Coindre, Jean-Philippe, Coldefy, Olivier, Colomina, M.A., Combarnous, François, Dabot, Christian, Dahmane, Djamal, Dahmani, Ahmed, Daubresse, Daniel, De Fremont, Jean-François, De Precigout, Valérie, Dehais, Françoise, Dehina, M., Delclaux, Caroline, Delmas, Yashou, Denicola, Coralia, Devaux, Jean-Philippe, Diab, Raji, Diddaoui, Zineddine, Didelot, Dimitrov, Yves, Djema, Assia, Donnadieu, Patrick, Drouillat, Valérie, Drouineau, Olivier, Dumont, Geneviève, Dupuy, Philippe, Durand, Pierre-Yves, Edet, Stéphane, El Ali, Hamid, El Nasser, Khuzama, Emond, Christian, Fadel, Baya, Fakir, Mohamed, Faucon, Jean-Paul, Faure, André, Ferhat-Carre, Assia, Fessi, Hafedh, Fickl, Rocsana, Fodil-Cherif, Mahammed, Fourcade, Jacques, Fournier, Philippe, Fraoui, Rabah, Fritz, Olivier, Gaboriau, Elke, Ganea, Alexandre, Galland, Roula, Gaultier, Jacqes, Gauthier, Eric, Guiberteau, Sylvie Geffroy, Genestier, Sandrine, Giraud, Patrick, Glowacki, Françoise, Goupy, Christophe, Grimal, Pierre, Guergour, Mounir, Gugliotta, Jean, Guillodo, Marie-Paule, Guimont, Marie-Claude, Hachache, Toufic, Hacini, Sabria, Haddad, Imad, Hadj-Abdelkader, Mohamed, Halin, Pascale, Hallonet, Patrick, Hamdini, Nasser, Hamel, Didier, Heibel, Françoise, Hermelin, Alain, Heyani, Alim, Hiernaux, Philippe, Hoffmann, Maxime, Hugot, Valérie, Ibos, Richard, Jacq, Dominque, Jaulin, Jean-Paul, Jean, Guillaume, Jousset, Philippe, Jonon, Benoît, Joyeux, Véronique, Juillard, Laurent, Kamal, Amer, Chibout, Mimi Kareche, Khayat, Rateb, Khazine, Franklin, Khellaf, Karim, Klisnick, Arnaud, Knefati, Yannick, Kolko-Labadens, A., Kolta, Amir, Kossari, Niloufar, Kourilsky, Olivier, Krayem, Nicolas, Kribs, Marc, Krummel, Thierry, Kuentz, François, Kunz, Kristian, Lamotte, Christian, Lanau, Jean-Marc, Landru, Isabelle, Laradi, Achour, Larroumet, Nicole, Lavelle, Olivier, Le Roy, Frank, Lenz, Alejandra, Lerda, Denis, Leroy, Fanny, Leteif, Marc, Levannier, Martial, Lobbedez, Thierry, Lockmane, Hassan, Longlune, Nathalie, Mortuaire, Christie Lorriaux, Lyon, Alain, Maakaroun, Ghassan, Maaz, Mehadji, Magnant, Eric, Majdalani, Ghandour, Mahe, Jean-Luc, Maksour, Edward, Martin, Stéphane, Martinat-Calvo, Catherine, Masson, Valérie, May, Delia, Maynard, Claire, Mayor, Brice, Mazouz, Omar, Mehama, Hocine, Mercier, Dominique, Messier, Gilles, Milongo, Robert, Monnier, Nicole, Moreau, Karine, Moreau-Gaudry, Xavier, Morel, Bertrand, Doleris, Luc Moulonguet, Mouneimne, Alexandre, Mourey-Epron, Catherine, Moussion, Françoise, Muniz, Blanca, Mustel, J., Nebbad, Rachida, Nemmar, Fazia, Neuville, Sylvie, Nguyen-Quang, Tien, Nolen, Patrice, Normand, Michel, N’Sembani, Emerson, Ollier, Jacques, Ortiz, Jean-Paul, Ouziala, Messaoud, Painchart, Bernard, Palacin, Pedro, Pengloan, Josette, Perrin, Franck, Perrone, Bruno, Petitjean, Philippe, Petregne, Dominique, Philit, Jean-Baptiste, Planquois, Vincent, Pocheville, Marc, Potier, Jacky, Poux, Jean-Michel, Puyoo, Olivier, Quere-Maurouard, Catherine, Rachi, Ahmed, Ratsimbazafy, Anderson, Reberolle, Matthieu, Renaud, Henri, Richalet, Bernard, Richter, Sarah, Rieu, Philippe, Rince, Michel, Rivault, Odile, Robert, Alain, Rottembourg, Jacques, Rousseau, Philippe, Duval, Sophie Rubens, Roubicek, Christa, Seniuta, Piotr, Seris, Pascal, Shahapuni, Irina, Sharobeem, Reda, Shenouda, Milad, Com, Hélène Sichez, Simonin, Danlèle, Soltani, Nadia, Souid, Marc, Sow, Hadia, Szelag, Jean-Christophe, Taddei, Catherine, Takla, Zafer, Teboulle, Dominque, Terrat, Jean-Claude, Thomas, Patrick, Tifoura, Adam, Toulon, Jacques, Touzard, Dominique, Urena Torres, Pablo, Van der Pijl, Hans, Vanel, Thierry, Vela, Carlos, Vernier, Isabelle, Verove, Cathy, Wambergue, François Pascal, Wehbe, Bassem, Wong-Fat, Maeva, Yazbeck, Fatima, Yousfi, Djamal, Youssef, Maan, Ziane, Abdelaziz, Roth, Hubert, London, Gérard M., Bouchet, Jean-Louis, Drüeke, Tilman B., and Fouque, Denis

Published
2016
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23. Understanding non-linear ground response from volcanic explosions and Distributed Dynamic Strain Sensing (DDSS) parameters: An example from Mt. Etna, Italy

Author

Diaz-Meza, Sergio, Jousset, Philippe, Currenti, Gilda, Wollin, Christopher, Costes, Lucice, Krawczyk, Charlotte, Chalari, Athena, and Clarke, Andy

Abstract

Distributed Dynamic Strain Sensing (DDSS), a.k.a. Distributed Acoustic Sensing (DAS), is becoming a popular tool for volcano monitoring. The sensing method relies on measuring the phase-shift of Rayleigh back-scattered light throughout the fibre due to strain variations in the fibre glass. This provides distributed strain-rate measurements at fine temporal and spatial sampling intervals. During 3 months in 2019, we recorded signals from thousands of mild volcanic explosions from Mt. Etna using a multi-instrument network deployed in an area at ca. 2.5 km distance from the active craters. Infrasound sensors were laying at the surface with a dense array of broadband seismometers (BB). Two types of fibres were also buried ca. 30 cm depth in the non-consolidated scoria from the area. First fibre was a 1.5 km long standard fibre, interrogated with an iDAS unit. The second fibre was a 0.5 km long engineered fibre, interrogated with a Carina unit. Relation between infrasound and DDSS data suggests a ground response of the loose scoria due to the acoustic pressure waves from explosions. Further analysis suggests a non-linear relationship between acoustic pressure and strain-rate data. However, signal saturation is encounter in some of the strain-rate data, which affects the interpretation of the non-linear relation. Therefore, we present an algorithm to correct the signal artefacts, allowing us to restore the true strain-rate signal and exceed the dynamic range limited by the initial DDSS recording parameters. The outcome includes strategies in the selection of acquisition parameters prior to DDSS campaigns to avoid signal saturation., The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)

Published
2023

24. Site characterization using H/V spectral ratios from combined DAS and broadband ambient noise measurements on Mt. Etna, Italy

Author

Pätzel, Jonas, Jousset, Philippe, Currenti, Gilda, and Krawczyk, Charlotte

Abstract

Horizontal-to-vertical (H/V) spectral ratios have proven to be an inexpensive and easy tool to gain insight into local site effects. Here we attempt to extend the method to distributed acoustic sensing data by combined processing of records from an array of 26 broadband seismometers and a 1.5 km long fibre optic cable on the North-East flank of Etna volcano. Using the same processing steps as for conventional H/V computing on seismometers, we derive spectral ratios along the trajectory of the fibre.Results show, that this approach is suited to assess the site response in higher spatial resolution than with broadband seismometers only. The H/V peak frequency distribution generally agrees with results from the array, in some parts indicating otherwise not resolved geological structures. Localized strong amplitude changes in the spectral ratio, coincide with the cable crossing known fault zones., The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)

Published
2023

25. Determining clock errors of ocean-bottom seismometers: an ambient-noise based method designed for large-scale ocean bottom deployments

Author

Naranjo, D. (author), Parisi, Laura (author), Jónsson, Sigurjón (author), Jousset, Philippe (author), Werthmüller, D. (author), Weemstra, C. (author), Naranjo, D. (author), Parisi, Laura (author), Jónsson, Sigurjón (author), Jousset, Philippe (author), Werthmüller, D. (author), and Weemstra, C. (author)

Abstract

The timing of the recordings of ocean-bottom seismometers (OBSs) is critical for accurate earthquake location and Earth model studies. GNSS signals, however, cannot reach OBSs deployed at the ocean bottom. This prevents their clocks from being synchronized with a known reference time. To overcome this, we developed OCloC, a Python package that uses time-lapse cross-correlations of ambient seismic noise to synchronize the recordings of large-scale OBS deployments. By simultaneously quantifying deviations from symmetry of a set of lapse cross-correlations, OCloC recovers the incurred clock errors by means of a least-squares inversion. In fact, because non-uniform noise illumination patterns also break the symmetry of (lapse) cross-correlations, we introduce a distance-based weighted least-squares inversion. This mitigates the adverse effect of the noise illumination on the recovered clock errors. Using noise recordings from the IMAGE project in Reykjanes, Iceland, we demonstrate that OCloC significantly reduces the time and effort needed to detect and correct timing errors in large-scale OBS deployments. In addition, our methodology allows one to evaluate potential timing errors at the time of OBS deployment. These might be caused by incorrect initial synchronization, or by rapidly changing temperature conditions while the OBS is sunk to the sea bottom. Our work advances the use of OBSs for earthquake studies and other applications., Applied Geophysics and Petrophysics, Geoscience and Engineering

Published
2023
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33. Fibre-optic dynamic strain borehole sensing at Etna volcano

Author

Jousset, Philippe, primary, Currenti, Gilda, additional, Napoli, Rosalba, additional, Pulvirenti, Mario, additional, Pelligrino, Daniele, additional, Cunow, Christian, additional, Larocca, Graziano, additional, Bonaccorso, Alessandro, additional, Leto, Giuseppe, additional, and Krawczyk, Charlotte, additional

Published
2023
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34. Implementing the Krafla Magma Testbed (KMT): linking volcanology and geothermal research for future hazard and energy solutions

Author

Lavallée, Yan, primary, Mortensen, Anette, additional, Papale, Paolo, additional, Eichelberger, John, additional, Sigmundsson, Freysteinn, additional, Kennedy, Ben, additional, Villeneuve, Marlène, additional, Jousset, Philippe, additional, Dingwell, Donald Bruce, additional, Markusson, Sigurdur, additional, Eiríksdóttir, Vordís, additional, Pálsson, Bjarni, additional, Tester, Jeff, additional, Karlsdóttir, Sigrún Nanna, additional, Midgley, John, additional, Ingolfsson, Hjalti Páll, additional, and Ludden, John, additional

Published
2023
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35. Sensing fault zone at depth through Optical Fiber: Taiwan Milun-fault Drilling and All-inclusive Sensing (Taiwan MiDAS) project

Author

Ma, Kuo-Fong, von Specht, Sebastian, Kuo, Li-Wei, Huang, Hsin-Hua, Lin, Chin-Jen, Ku, Chin-Shang, Lin, Chen-Ray, and Jousset, Philippe

Abstract

The Taiwan Milun fault zone located at the boundary between the Eurasian and Philippine Sea plates. This fault slips frequently and produced large earthquakes, as for example the Mw6.4 Hualien earthquake (6 February 2018). We map and observe the fault zone and its behavior at depth by high spatial resolution dynamic strain sensing with optical fiber. In 2021-2022, we drilled and cored the fault, and deployed a 3D multi-cross-fault fiber array comprising a borehole loop with a depth of 700 m (Hole-A, Hanging wall site, crossing the fault at depth), a surface array crossing the fault rupture zone using commercial fiber, and a second borehole loop of 500m fiber (Hole-B, Footwall site). The high spatial resolution from distributed acoustic sensing (DAS) and the retrieved core combined with geophysical logs allow us to characterize the structure on meter-scale. Within the Milun fault zone, we identified a 20-m wide fault core comprised of gray and black gouge in the core sample. DAS strain-rate records associated with the same depth as the fault core show a distinct amplification. The amplification ratio of 2.5-3 is constant as for all types of events (local, teleseismic ), when compared to DAS channels at larger depth, related to a consolidated rock material. Although the fault gouge is narrow, the nature of the amplification in strain is due to its strong material contrast from fault gouge. This result may shed the light on the understanding of fault-zone dynamics in terms of remote earthquake triggering and near-fault ground motion., The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)

Published
2023
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36. Acoustic Signals of a Meteoroid Recorded on a Large-NSeismic Network and Fiber-Optic Cables

Author

Vera Rodriguez, Ismael, primary, Isken, Marius P., additional, Dahm, Torsten, additional, Lamb, Oliver D., additional, Wu, Sin-Mei, additional, Kristjánsdóttir, Sigríður, additional, Jónsdóttir, Kristín, additional, Sanchez-Pastor, Pilar, additional, Clinton, John, additional, Wollin, Christopher, additional, Baird, Alan F., additional, Wuestefeld, Andreas, additional, Booz, Beat, additional, Eibl, Eva P. S., additional, Heimann, Sebastian, additional, Goertz-Allmann, Bettina P., additional, Jousset, Philippe, additional, Oye, Volker, additional, Hjörleifsdóttir, Vala, additional, and Obermann, Anne, additional

Published
2022
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37. Performance of a Rotational Sensor to Decipher Volcano Seismic Signals on Etna, Italy

Author

Eibl, Eva P. S., Rosskopf, Martina, Sciotto, Mariangela, Currenti, Gilda, Di Grazia, Giuseppe, Jousset, Philippe, Krüger, Frank, Weber, Michael, 1 Institute for Geosciences University of Potsdam Potsdam Germany, 3 Istituto Nazionale di Geofisica e Vulcanologia‐Osservatorio Etneo Catania Italy, and 4 GFZ German Research Centre for Geosciences Potsdam Germany

Subjects
VT events and tremor, monitoring, Geophysics, Space and Planetary Science, Geochemistry and Petrology, volcanoseismology, rotational sensor, LP, VLP, Etna, Earth and Planetary Sciences (miscellaneous), ddc:551.2
Abstract

Volcano‐seismic signals such as long‐period events and tremor are important indicators for volcanic activity and unrest. However, their wavefield is complex and characterization and location using traditional seismological instrumentation is often difficult. In 2019 we recorded the full seismic wavefield using a newly developed 3C rotational sensor co‐located with a 3C traditional seismometer on Etna, Italy. We compare the performance of the rotational sensor, the seismometer and the Istituto Nazionale di Geofisica e Vulcanologia‐Osservatorio Etneo (INGV‐OE) seismic network with respect to the analysis of complex volcano‐seismic signals. We create event catalogs for volcano‐tectonic (VT) and long‐period (LP) events combining a STA/LTA algorithm and cross‐correlations. The event detection based on the rotational sensor is as reliable as the seismometer‐based detection. The LP events are dominated by SH‐type waves. Derived SH phase velocities range from 500 to 1,000 m/s for LP events and 300–400 m/s for volcanic tremor. SH‐waves compose the tremor during weak volcanic activity and SH‐ and SV‐waves during sustained strombolian activity. We derive back azimuths using (a) horizontal rotational components and (b) vertical rotation rate and transverse acceleration. The estimated back azimuths are consistent with the INGV‐OE event location for (a) VT events with an epicentral distance larger than 3 km and some closer events, (b) LP events and tremor in the main crater area. Measuring the full wavefield we can reliably analyze the back azimuths, phase velocities and wavefield composition for VT, LP events and tremor in regions that are difficult to access such as volcanoes., Plain Language Summary: Traditional seismographs usually include mass and spring systems which measure vibrations constrained to up‐down, north‐south and east‐west directions. We compare the traditional seismometer to a rotational sensor which measures ground rotation around the same three directions. We installed a rotational sensor on Etna volcano in 2019 to test these new sensors in a volcanic environment. We compare the performance of the rotational sensor, a traditional seismometer and the Istituto Nazionale di Geofisica e Vulcanologia‐Osservatorio Etneo (INGV‐OE) seismometer network. We detect two types of a few second long earthquakes and find that the rotational sensor performs as good as the seismometer. We use the rotational sensor to calculate directions of the earthquake locations and find that most directions agree with the INGV‐OE network location and the area of the active craters. We find that for some earthquakes the ground only moved horizontally while for others it also moved up and down. Using a rotational sensor on a volcano we can easily and reliably estimate the ground motion, the speed of the earthquake waves in the ground and understand better how these earthquakes are generated., Key Points: We tested the performance of a rotational sensor compared to a seismometer and a seismic network using long‐period (LP), volcano‐tectonic (VT) events and tremor on Etna. LP and VT events are dominated by SH‐ and SV‐waves, respectively. Tremor changed from SH‐ to a mixed wavefield during strombolian eruptions. LP event and tremor back azimuths point to the main craters consistent with the Istituto Nazionale di Geofisica e Vulcanologia location; VT event back azimuths are at times consistent., Eurovolc, Daimler Benz Foundation, https://doi.org/10.14470/ME7564062119

Published
2022

38. Combined Large-NSeismic Arrays and DAS Fiber Optic Cables across the Hengill Geothermal Field, Iceland

Author

Obermann, Anne, primary, Sánchez-Pastor, Pilar, additional, Wu, Sin-Mei, additional, Wollin, Christopher, additional, Baird, Alan F., additional, Isken, Marius Paul, additional, Clinton, John, additional, Goertz-Allmann, Bettina P., additional, Dahm, Torsten, additional, Wuestefeld, Andreas, additional, Shi, Peidong, additional, Lanza, Federica, additional, Gyger, Lea, additional, Wetter, Selina, additional, Hjörleifsdóttir, Vala, additional, Langet, Nadege, additional, Brynjarsson, Baldur, additional, Jousset, Philippe, additional, and Wiemer, Stefan, additional

Published
2022
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45. Monitoring a submarine strike-slip fault, using a fiber optic strain cable

Author

Gutscher, Marc-Andre, primary, Royer, Jean-Yves, additional, Graindorge, David, additional, Murphy, Shane, additional, Klingelhoefer, Frauke, additional, Gaillot, Arnaud, additional, Aiken, Chastity, additional, Cattaneo, Antonio, additional, Barreca, Giovanni, additional, Quetel, Lionel, additional, Riccobene, Giorgio, additional, Aurnia, Salvatore, additional, Margheriti, Lucia, additional, Moretti, Milena, additional, Krastel, Sebastian, additional, Petersen, Florian, additional, Urlaub, Morelia, additional, Kopp, Heidrun, additional, Currenti, Gilda, additional, and Jousset, Philippe, additional

Published
2022
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46. A comprehensive model of the precursors leading to the 2021 Fagradalsfjall eruption 

Author

Flóvenz, Ólafur, primary, Wang, Rongjiang, additional, Hersir, Gylfi Páll, additional, Dahm, Torsten, additional, Hainzl, Sebastian, additional, Vassileva, Magdalena, additional, Drouin, Vincent, additional, Heimann, Sebastian, additional, Isken, Marius Paul, additional, Gudnason, Egill Árni, additional, Ágústsson, Kristján, additional, Ágústsdóttir, Thorbjörg, additional, Horálek, Josef, additional, Motagh, Mahdi, additional, Walter, Thomas R, additional, Rivalta, Eleonora, additional, Jousset, Philippe, additional, Krawczyk, Charlotte M, additional, and Milkereit, Claus, additional

Published
2022
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47. Multiphase observations of a meteoroid in Iceland recorded over 40 km of telecommunications cables and a large-N network

Author

Vera Rodriguez, Ismael, primary, Dahm, Torsten, additional, Isken, Marius P., additional, Kraft, Toni, additional, Lamb, Oliver D., additional, Wu, Sin-Mei, additional, Heimann, Sebastian, additional, Sanchez-Pastor, Pilar, additional, Wollin, Christopher, additional, Baird, Alan F., additional, Wüstefeld, Andreas, additional, Kristjánsdóttir, Sigríður, additional, Jónsdóttir, Kristín, additional, Eibl, Eva P. S., additional, Goertz-Allmann, Bettina P., additional, Jousset, Philippe, additional, Oye, Volker, additional, and Obermann, Anne, additional

Published
2022
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