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Résumé :
Philippe Audra a obtenu le titre de Docteur en géographie physique à l’Université Joseph Fourier à Grenoble en 1993. Il est professeur agrégé de géographie. Il intègre l’Université de Nice Sophia-Antipolis en 1995 comme Maître de Conférences en géographie physique, puis Polytech Nice-Sophia en 2007, où il est promu Professeur en 2014. Sa recherche concerne le karst. Il s’est spécialisé dans les domaines fondamentaux de la formation des réseaux karstiques, notamment des réseaux noyés profonds et des réseaux hypogènes. Dans le domaine appliqué, il est reconnu pour ses contributions en hydrologie karstique, en évaluation du risque karstique dans les grandes infrastructures, et en gestion de la ressource en eau souterraine. Actuellement directeur du Département Hydroinformatique et ingénierie de l’eau et du Master hydroprotech à Polytech Nice-Sophia, il s’investit tout particulièrement dans la formation des élèves ingénieurs et des étudiants en Master. Il a notamment encadré une dizaine de doctorants tant sur le karst que dans le domaine de la gestion de l’eau. Particulièrement investit au niveau international de la recherche, il est l'auteur ou co-auteur de près de 200 publications dans des journaux ou conférences.

Philippe Audra received the Ph.D. degree in Physical geography at the University Joseph Fourier of Grenoble, France, in 1993. He is senior teacher in Geography. He enters the University of Nice Sophia-Antipolis in 1995 as Associate Professor in Physical geography, then Polytech Nice-Sophia Engineering School in 2007, where he got a position of Full Professor in 2014. His research is dedicated to karst. He is an expert in cave genesis, especially in deep phreatic and in hypogene caves systems. In operative research, he is an expert in karst hydrology, in karst assessment for civil engineering, and in groundwater management. Currently Director of the Department of Hydroinformatic and Water management and of MSc. Hydroprotech, he is particularly involved in the education of engineering and Master degree students. He was supervisor of about 10 PhD students both in karst science and in water management. With a special attention to the research at the international level, he is author or co-author of almost 200 journal and conference papers.

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Domaine d'activité :

Ressource en eau souterraine, karst, spéléogenèse, hydrologie karstique

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Publications :

Ouvrages ou Chapitres de livre :

P. Audra, D. Cailhol, F. Gazquez, S. Jaillet, H. Cheng, L. Edwards, C. Fehdi & F. Baali, “Les cavités et karstifications hypogènes - sulfuriques et thermales - de l’Azrou, chaîne des Bibans, Algérie ; un jalon de l’évolution de l’Atlas tellien depuis 3 Ma”, Collollignon B. (EDs) - Karsts et grottes d'Algérie, Karstologia Mémoires, vol. 27, pp. 103-125, 2022.

P.I. Game, P. Audra & P. Gourbesville, “Influence of Topography Resolution and Quality on Modeling Hydrological Processes in Paillon River Basin in the South of France”, P. Gourbesville & G. Caignaert (Eds) - Advances in Hydroinformatics, Springer Water, Springer, Singapore, 2022.

P.I. Game, P. Audra & P. Gourbesville, “Study of Coastline Dynamics and Impact of a Hydraulic Structure in Menton, France”, Gourbesville P. & Caignaert G. (eds) Advances in Hydroinformatics, Springer Water. Springer, Singapore, 2022.

M. Ghulami, P. Gourbesville & P. Audra, “Impacts of Climate Change on Water Availability for the Vésubie Catchment, France”, P. Gourbesville & G. Caignaert (Eds) - Advances in Hydroinformatics, Springer Water, Springer, Singapore, 2022.

L. Pisani, M. Antonellini, F. H.R. Bezerra, C. Carbone, A. S. Auler, P. Audra, V. La Bruna, G. Bertotti, F. Balsamo, C. C.C. Pontes, J. De Waele, “Silicification, flow pathways, and deep-seated hypogene dissolution controlled by structural and stratigraphic variability in a carbonate-siliciclastic sequence (Brazil)”, Marine and Petroleum Geology, vol. 139, 105611, 24 p., 2022.

P.Q.A. Nguyen, P.Gourbesville, N.D. Vo, P. Audra, M. Abily & Q. Ma, “Modeling NH₄⁺ dispersion from wastewater of urban drainage to the coastal area of Danang City, Vietnam”, In: Gourbesville P. & Caignaert G. (Eds) - Advances in Hydroinformatics SimHydro 2019, “Which models for extreme situations and crisis management?”, Springer Water, Springer, Singapore, pp. 767-778, 2020.

P. Audra, “Hypogenic caves in France”, Ed. A. Klimchouk, A.N. Palmer, P. Audra & A. Auler, “Selected Hypogene Karst Regions and Caves of the Word”, Springer, New York, 2017.

P. Audra, “Hypogene caves in North Africa (Morocco, Algeria, Tunisia, Libya, Egypt)”, Ed. A. Klimchouk, A.N. Palmer, P. Audra & A. Auler, “Selected Selected Hypogene Karst Regions and Caves of the Word”, Springer, New York, 2017.

M. Vattano, G. Madonia, P. Audra, I.M. D’Angeli, E. Galli, J.-Y. Bigot, J.-C. Nobecourt & J. De Waele, “Update on the Hypogenic caves of Sicily”, Ed. A. Klimchouk, A.N. Palmer, P. Audra & A. Auler, “Selected Selected Hypogene Karst Regions and Caves of the Word”, Springer, New York, 2017.

P. Audra & J.-C. Nobecourt, “La grotte des Chamois et la source du Coulomp, un karst atypique (Castellet-lès-Sausses, Alpes de Haute-Provence)”, Ed. R. Fournier, M. Guiomar, J. Melleton, C. Rousset & P. Tordjman, “Alpes de Haute-Provence”, 256 p. Coll. Guides géologiques, Omnisciences, Montreuil, 2014.

P. Audra & A. Palmer, “The vertical dimension of karst. Controls of vertical cave pattern”, In: J. Shroder (Ed. in chief), A. Frumkin (Ed.) – Treatise on Geomorphology, vol. 6 (Karst Geomorphology), p. 186-206, Academic Press, San Diego, CA, 2013.

Revues internationales :

P. Audra & M. Al Kindi, “Fire-set mining in an ancient lead mine: Khaf Al Laasif, Al 'Āmrāt, Oman”, Arabian Journal of Geosciences, 2023.

P. Game, M. Wang, P. Audra & P. Gourbesville, “Challenges & solutions for deterministic hydraulic modelling in mediterranean coastal catchment. Application to the lower Paillons river, Nice, France”, IOP Cenference Series: Earth and Environmental Science, vol. 1136, n° 1, 9 p., 2023

P. Audra, J.-Y. Bigot, D. Laurent, N. Vanara, D. Cailhol & G. Cazenave, “Hydrodynamic model for independent cold and thermo-mineral twin springs in a stratified continental karst aquifer, Camou, Arbailles Massif, Pyrénées, France”, International Journal of Speleology, vol. 51, n° 2, pp. 81-91, 2022.

M. Temovski, L. Rinyu, I. Futo, K. Molnar, A. Demeny, B. Otonicar, B. Dublyansky, P. Audra & L. Palcsu, “Combined use of bulk and clumped carbonate stable isotopes to identify hydrothermal isotopic alteration in cave walls”, Scientific Reports, Vol. 12, 9202, 16 p. , 2022.

J.M. Ghazi & P. Audra, “Travertine park in Azarshahr (NW Iran): An opportunity for geoheritages conservation and diminishing Geohazards risk”, Geoheritage, vol. 14, 99, 2022.

M. Ghulami, P. Gourbesville, P. Audra & S.Y. Liong, “Performance Evaluation of CORDEX South Asia Models for Projections of Precipitation over the Kabul Basin, Afghanistan, Water”, LHB: Hydroscience Journal, vol. 108:1, 2095936, 13 p., 2022.

L. Pisani, M. Antonellini, F. H.R. Bezerra, C. Carbone, A. S. Auler, P. Audra, V. La Bruna, G. Bertotti, F. Balsamo, C. C.C. Pontes, J. De Waele, “Silicification, flow pathways, and deep-seated hypogene dissolution controlled by structural and stratigraphic variability in a carbonate-siliciclastic sequence (Brazil)”, Marine and Petroleum Geology, vol. 139, 105611, 24 p., 2022.

C. Pontes, F.H.R. Bezerra, G. Bertotti, V. La Bruna, P. Audra, J. De Waele, A. Auler, F. Balsamo, S. De Hoop & L. Pisani, “Flow pathways in multiple-direction fold hinges: Implications for fractured and karstified carbonate reservoirs”, Journal of Structural Geology, vol. 146, 2021.

P. Audra, V. Heresanu, L. Barriquand, M. El Kadiri Boutchich, S. Jaillet, E. Pons-Branchu, P. Bosak, H. Cheng, R.L. Edwards & M. Renda, “Bat guano minerals and mineralization processes in Chameau Cave, Eastern Morocco”, International Journal of Speleology, vol. 50, n°1, pp. 91-109, 2021.

P. Audra, “Jean Nicod, tisseur de partenariats et promoteur de l’École française de karstologie”, Karstologia, vol. 77, 2021.

D. Laurent, C. Durlet, G. Barre, P. Sorriaux, P. Audra, P. Cartigny, C. Carpentier, G. Paris, P. Collon, T. Rigaudier, J. Pironon & E.C. Gaucher, “Epigenic vs. hypogenic speleogenesis governed by H₂S/CO₂ hydrothermal input and Quaternary icefield dynamics (NE French Pyrenees)”, Geomorphology, vol. 387, 107769, 2021.

L. Barriquand, J.Y. Bigot, P. Audra, D. Cailhol, C. Gauchon, V. Heresanu, S. Jaillet & V. Vanara, “Caves and Bats: morphological impacts and archaeological consequences. The Azé Prehistoric Cave (Saône-et-Loire, France)”, Geomorphology, vol. 388, 107785, 2021.

P. Audra, “Jean Nicod, tisseur de partenariats et promoteur de l’École française de karstologie”, Karstologia, vol. 77, 2021.

R.E.B. Araújo, V. La Bruna, A. Rustichelli, F.H.R. Bezerra, M.M. Xavier, P. Audra, J.A. Barbosa & A.C.D. Antonino, “Structural and sedimentary discontinuities control the generation of karst dissolution cavities in a carbonate sequence, Potiguar Basin, Brazil”, Marine and Petroleum Geology, vol. 123, 21 p., 2021.

A. Columbu, P. Audra, F. Gázquez, I.M. D’Angeli, J.Y. Bigot, G. Koltai, R. Chiesa, T.L. Yu, H.M. Hu, C.C. Shen, C. Carbone, V. Heresanu, J.C. Nobécourt & J. De Waele, “A hypogenic cave system with late-stage condensation-corrosion and epigenic overprinting (Toirano, Liguria, Italy)”, Geomorphology, vol. 376, 20 p., 2021.

R. López-Martínez, F. Gázquez, J.M. Calaforra, P. Audra, J.Y. Bigot, T. Pi Puig, R. Alcántara, A. Navarro, P. Crochet, L. Corona-Martínez & R. Daza Brunet, “Bubble trail and folia in cenote Zapote, Mexico: petrographic evidence for abiotic precipitation driven by CO2 degassing below the water table”, International Journal of Speleology, vol. 49, n° 3, p. 173-186, 2020.

M.K. Fidele & P. Audra, “Residual wastewater treatment by an aquatic plant system in tropical area: assessment of Arundo donax and Pennisetum purpureum Schumach”, International Journal of Water and Wastewater Treatment, vol. 6, n° 3, 9 p., 2020.

G. Bertotti, P. Audra, A.S. Auler, F.H. Bezerra, S. de Hoop, C. Pontes, R. Prabhakaran & R. Lima, “The Morro Vermelho hypogenic karst system (Brazil): stratigraphy, fractures, and flow in a carbonate strike-slip fault zone with implications for carbonate reservoirs”, American Association of Petroleum Geologists (AAPG) Bulletin, vol. 104, n° 10, pp. 2029–2050, 2020.

P. Audra, J. De Waele, I. Bentaleb, A. Chroňáková, V. Krištůfek, I.M. D’Angeli, C. Carbone, G. Madonia, M. Vattano, G. Scopelliti, D.  Cailhol, N. Vanara, M. Temovski, J.Y. Bigot, J.C. Nobécourt, E. Galli, F. Rull & A. Sanz-Arranz, “Guano-related phosphates-rich minerals in European caves”, International Journal of Speleology, vol. 48, n° 1, pp. 75-105, 2019.

D. Cailhol, P. Audra, C. Nehme, F.H. Nader, M. Garašić, V. Heresanu, S. Gucel, I. Charalambidou, L. Satterfield, H. Cheng & R. L. Edwards, “The contribution of condensation-corrosion in the morphological evolution of caves in semi-arid regions: preliminary investigations in the Kyrenia Range, Cyprus”, Acta Carsologica, vol. 48, n° 1, pp. 5-27, 2019.

R. Mouici, D. Boubaya, F. Baali, F. Chemseddine, P. Audra, D. Cailhol, S. Jaillet & B. Arfib,  “Geophysical, geotechnical, and speleological assessment for karst-sinkhole collapse genesis in Cheria plateau (NE Algeria)”, Mining Science Reviews, vol. 24, p. 59-71, 2017.

D. Harmand, K. Adamson, G. Rixhon, S. Jaillet, B. Losson, A. Devos, G. Hez, M. Calvez & P. Audra, “Relationships between fluvial evolution and karstification related to climatic, tectonic and eustatic forcing in temperate regions”, Quaternary Science Reviews, vol. 166, p. 38-56, 2017.

P. Audra, P. Bosak, F. Gazquez, D. Cailhol, R. Skala, S. Jonasova, A. Frumkin, M. Knez, T. Slabe, N. Zupan-Hajna & A. AL-Farraj-Kitbi, “Bat urea minerals in arid environment. First identification of allantoin, C₄H₆N₄O₃, in Kahf Kharrat Najem Cave, United Arab Emirates”, International Journal of Speleology, vol. 46, n° 1, p. 81-92, 2017.

J. De Waele, P. Audra, G. Madonia, M. Vattano, I.M. D’Angeli, J.-Y. Bigot & J.-C. Nobecourt, “Sulfuric acid speleogenesis (SAS) close to the water table: Examples from southern France, Austria, and Sicily”, Geomorphology, vol. 253, p. 452-467, 2016.

P. Audra, L. Barriquand, J.Y. Bigot, D. Cailhol, H. Caillaud, N. Vanara & J.C. Nobécourt, “L’impact méconnu des chauves-souris et du guano dans l’évolution morphologique tardive des cavernes”, Karstologia, n° 68, pp. 1-30, 2016.

P. Audra & A.N. Palmer, “Research frontiers in speleogenesis. Dominant processes, hydrogeologic conditions and resulting cave pattern”, Acta Carsologica, vol. 44, n° 3, p. 315-348, 2015.

P. Audra, F. Gazquez, F. Rull, J.-Y. Bigot &  H. Camus, “Hypogene Sulfuric Acid Speleogenesis and rare sulfate minerals in Baume Galinière Cave (Alpes-de-Haute-Provence, France). Record of uplift correlative cover retreat and valley dissection”. Geomorphology, vol. 247, p. 25-34, 2015.

J. De Waele, F. Gutierrez & P. Audra, “Karst geomorphology: from hydrological functioning to palaeoenvironmental reconstructions” Geomorphology, vol. 229, p. 1-2, 2015

F. Gabrovsek, P. Hauselmann & P. Audra, ““Looping caves” versus “watertable caves”. The role of base level changes and recharge variations in cave development”, Geomorphology, n° 204, p. 683-691, 2013.

M. Temovski, P. Audra, A. Mihevc, J. Spangenberg, V. Polyak, W. McIntosh & J.-Y. Bigot, “Hypogenic origin of Cave Provalata, Republic of Macedonia: rare case of successive thermal carbonic and sulfuric acid speleogenesis”, International Journal of Speleology, vol. 42, n° 3, p. 235-246, 2013.

P. Audra, J.-Y. Bigot, H. Camus, C. Gauchon & M. Wienin, “La grotte-mine du Piei (Lagnes, Vaucluse), paléokarst hypogène à remplissage de minerai de fer oxydé”, Karstologia, n° 58, p. 1-14, 2013.

G. Brocard, J. Willenbring, N. Suski, P. Audra, C. Authemayou, B. Cosenza-Muralles, S. Moran-Ical, F. Demory, P. Rochette, T. Vennemann, K. Holliger & C. Tessier, “Rate and processes of river network rearrangement during incipient faulting: the case of the Cahabon River, Guatemala”, American Journal of Science, vol. 312, p. 449–507, 2012.

P. Audra & A.N. Palmer, “The pattern of caves – Controls of epigenic speleogenesis”, Geomorphologie : relief, processus, environnement, n° 4, p. 359-378, 2011.

L. Mocochain, P. Audra & J.-Y. Bigot, “Base level rise and Per Ascensum Model of Speleogenesis (PAMS). Interpretation of deep phreatic karsts, vauclusian springs and chimney-shafts”, Bulletin de la Société géologique de France, vol. 182, n° 2, p. 87-93, 2011.

P. Audra & F. Hoblea, “Water tracing in the Muruk-Berenice system (Nakanai Mountains, New Britain, Papua New Guinea)”, Speleogenesis and evolution of karst aquifer (SEKA), vol. 11, n° 1, 5 p., 2011.

P. Audra, “Rainfall, flows and percolation in Nakanai Mountains karst”, Speleogenesis and evolution of karst aquifer (SEKA), vol. 11, n° 1, 10 p., 2011.

P. Audra, S.E. Lauritzen & P. Rochette, “Speleogenesis in the hyperkarst of the Nakanai Mountains (New Britain, Papua New-Guinea). Evolution model of a juvenile system (Muruk Cave) inferred from U/Th and paleomagnetic dating”, Speleogenesis and evolution of karst aquifer (SEKA), vol. 11, n° 1, 6 p., 2011.

P. Audra & F. Hoblea, “The role of seismic activity in the formation of large underground cavities in the Muruk System, Nakanai Mountains, New Britain, Papua New Guinea”, Speleogenesis and evolution of karst aquifer (SEKA), vol. 11, n° 1, 6 p., 2011.

F. Hoblea, S. Gallino-Josnin & P. Audra, “Entre ressource, risques et patrimoine : le karst hydrothermal d’Aix-les-Bains”, Bulletin de la Société géologique de France, t. 181, n° 4, p. 315-326, 2010.

P. Audra, J.-Y. Bigot & J.-C. Nobecourt, “Hypogenic caves in France. Speleogenesis and morphology of the cave systems. Bulletin de la Société géologique de France, t. 181, n° 4, p. 327-335, 2010.

E. Gilli, P. Audra, J.-C. Nobecourt & P. Tordjman, “La Combe de Crousette (Parc national du Mercantour, Mont Mounier, Alpes Maritimes). Intérêt paysager d’un karst juvénile postglaciaire”, Karstologia, n° 56, p. 9-16, 2010.

P. Audra, L. Mocochain, J.-Y. Bigot & J.-C. Nobecourt, “The association between bubble trails and folia: A morphological and sedimentary indicator of hypogenic speleogenesis by degassing, example from Adaouste Cave (Provence, France)”, International Journal of Speleology, vol. 38, n° 2, p. 93-102, 2009.

J. De Waele, L. Plan & P. Audra, “Recent developments in surface and subsurface karst geomorphology: an introduction”, Geomorphology, vol. 106, n° 1-2, p. 1-8, 2009.

Communications invitées :

P. Audra, “Caves and Karsts of France, Keynote Conference”, International Congress of Speleology, Chambery, France, 2022.

P. Audra & A. Johannet, "Monitoring of Mescla karst spring in the French Southern Alps - A rare case of stratified waters out of coastal aera", International Karstological School "Classical karst", Regional karstology - Local and general aspects, Postojna, Slovenia, 2021.

P. Audra & J.-C. Nobécourt, “Monitoring of karst springs in the French Southern Alps: an outlook on general hydrodynamic processes”, International Karst School “Regional Karstology – Local And General Aspects”, Postojna, Slovenia, Institut de recherche du Karst (IZRK), 2019.

P. Audra, “Structure des réseaux karstiques. Les contrôles de la spéléogenèse épigène et hypogène”, Workshop Karst et Bassins Sédimentaires, Alès, IMT Mines Alès, Association française de karstologie (AFK), Association des sédimentologistes français (ASF), Institut montpellierain de l’eau et de l’environnement (IM2E), Terinov, Total, 2017.

P. Audra & A.N. Palmer, “Research frontiers in speleogenesis. Dominant processes, hydrogeological conditions and resulting cave patterns”, 23th International Karst School “Caves – Exploration and Studies”, Postojna, Slovenia, Institut de recherche du Karst (IZRK), 2015.

P. Audra, “Hypogene cave morphology and speleogenesis in relation to geological setting”, 21th International Karst School “Hypogene karst, from theory to reality”, Postojna, Slovenia. Institut de recherche du Karst (IZRK), 2013.

P. Audra, “Structural condition of hypogenic flow”, Workshop on Hypogene Caves Morphology and Speleogenesis in Deformed Strata and Postgraduate Training on Hypogene Caves Morphology, Olsztyn, Poland (HYPOCAVE project of the EU FP7-PEOPLE-2009 - IRSES programme Marie Curie International Research Staff Exchange Scheme), 2011.

P. Audra, “Karst of the Alps”, 18th International Karst School “Dinaric kars”, Postojna, Slovenia. Institut de recherche du Karst (IZRK), 2010.

Conférences internationales :

P. Game, M. Wang, P. Audra & P. Gourbesville, “Modelling Strategy for Multi Purposes Management in a Mediterranean Ungauged Catchment – Application to the Paillons Catchment, France”, IAHR World Congress, Granada, Spain, 2022.

C. Carbone, V. Balestra, D. Belmonte, P. Audra, A. Columbu, I.M. D’Angeli, R. Chiesa & J. De Waele, “New Ligurian mineralogical records of guano-associated phosphates in Colombo Cave (Toirano, Liguria, Italy)”, Geosciences for a sustainable future, Torino, Italia, 2022.

P. Game, M. Wang, P. Audra & P. Gourbesville, “Challenges & solutions for deterministic hydraulic modelling in mediterranean coastal catchment. Application to the lower Paillons river, Nice, France”, International Conference on Hydroinformatics HIC, Water Influence, Bucharest, Romania, 2022.

P. Audra, “Hypogene speleogenesis. Introduction to Hypogene session”, International Congress of Speleology, Chambery, France, 2022.

J.-Y. Bigot, J.-L. Guyot & P. Audra, “Speleogenesis of juvenile serial sinkhole-resurgence systems in the karsts of the Amazonian side of the Andes, Peru”, International Congress of Speleology, Chambery, France, 2022.

J.-Y. Bigot, L. Bruxelles & P. Audra, “Speleo-archeology, or the search of historic and prehistoric constructions in the caves of Southern France”, International Congress of Speleology, Chambery, France, 2022.

J.-Y. Bigot, P. Audra, L. Bruxelles, D. Cailhol & C. Pallier, “Bear claw marks in clay: differential conservation in caves harboring bat colonies. Mas d'Azil, Sirach and Lare caves, France”, International Congress of Speleology, Chambery, France, 2022.

J.-Y. Bigot, P. Audra & L. Bruxelles, “Speleothems break and regrowth testifying past visits in some caves of Southern France”,  Intern. Congress of Speleology, Chambery, France, 2022.

P. Sorriaux, H. Camus, L. Mocochain, P. Audra & P. Hauselman, “Neogene caves reactivated in Quaternary: Niaux-Lombrives-Sabart (Ariège, Pyrénées, France)”, International Congress of Speleology, Chambery, France, 2022.

L. Pisani, M. Antonellini,  J. De Waele, A. Auler, P. Audra, G. Bertotti, C. Pontes, V. La Bruna, F. Balsamo & F.H. Bezerra, “Hypogenic karst inception and super-permeability zones in Neoproterozoic carbonates of Northeastern Brazil”,  International Congress of Speleology, Chambery, France, 2022.

P. Audra, J. De Waele, A. Columbu,  I.M. D’Angeli, F. Gasguez,  J.-Y. Bigot, R. Chiesa, T.L. Yu, C.C. Chen, C. Carbone, V. Heresanu, G. Koltai & J.-C. Nobecourt, “Speleogenetic evolution of the Toirano cave system (Liguria, northern Italy)”,  International Congress of Speleology, Chambery, France, 2022.

M. Ghulami, P. Gourbesville & P. Audra, “Modeling of thermal use of shallow groundwater in an urban aquifer: A case study in Nice”, FEFLOW International User Conference, Vancouver, Canada, 2021.

F. Gázquez, A. Columbu, J. De Waele, P. Audra, D. Cailhol, M. Vattano, A. Giesche, J.M. Calaforra & D.A. Hodell, “Gypsum speleothems record the triple oxygen (δ17O and δ18O) and hydrogen (δ2H) isotopic composition of cave dripwater: potential paleoclimate implications”, European Geosciences Union (EGU) General Assembly, Vienna, Austria, 2020.

P.Q.A. Nguyen, P. Gourbesville, P. Audra, N.D. Vo & D.N.K. Vo, “Impact assessment of Son Tra wastewater treatment plant to the coast of Danang City, Vietnam”, International Conference on Hydroinformatics, Mexico City,Mexico, 2020.

M. Ghulami, P. Gourbesville & P. Audra, “Future projections of precipitation and temperature for the Var basin, France”, International Conference on Hydroinformatics, Mexico City, Mexico, 2020.

P.Q.A. Nguyen, P. Gourbesville, P. Audra, N.D. Vo & D.N.K. Vo, “Modeling methodology for wastewater discharge – Application to Danang Bay, Vietnam”, International Conference on Environment and Renewable, Hanoi, Vietnam, 2020.

P.Q.A. Nguyen, P. Gourbesville, P. Audra, N.D. Vo & D.N.K. Vo, “Impact of fluvial First Flush – Application to Danang City, Vietnam”, International Conference on Environment and Renewable Energy, Hanoi, Vietnam, 2020.

G. Bertotti, P. Audra, A. Auler, F.H. Bezerra, S. De Hoop, R. Prabhakaran, C. Pontes & R. Lima, “Characteristics and genesis of hypogenic karsts in carbonate successions: inferences for hydrocarbon and geothermal systems, Brazil”, EAGE Naturally Fractured Reservoir Workshop, European Association of Geoscientists and Engineers, Ras Al Khaimah, United Arab Emirates, 2020.

R.E.B. Araújo, F.H. Bezerra, V. La Bruna & P. Audra, “Structural and sedimentary discontinuities control on formation of karst dissolution cavities: example from the Potiguar Basin, Brazil”, EAGE Naturally Fractured Reservoir Workshop, European Association of Geoscientists and Engineers, Ras Al Khaimah, United Arab Emirates, 2020.

R.E.B. Araújo, P. Audra & F.H. Bezerra, “Vuggy formation following structural and sedimentary discontinuities, Soledade outcrop, Potiguar Basin, Brasil”, EAGE Naturally Fractured Reservoir Workshop, European Association of Geoscientists and Engineers, Ras Al Khaimah, United Arab Emirates, 2020.

M. Ghulami, P. Gourbesville & P. Audra, “Assessing future water availability under a changing climate in Kabul basin”, SimHydro, “Which models for extreme situations and crisis management?”, Sophia Antipolis, France, 2019.

P.Q.A. Nguyen, P. Gourbesville, N.D. Vo, P. Audra, M. Abily  & Q. Ma, “Modeling NH₄⁺ dispersion from wastewater of urban drainage to the coastal area of Danang City, Vietnam”, SimHydro, Sophia Antipolis, France, 2019.

D. Cailhol, P. Audra, J. Arnaud, D. Dupuy, S. Gucel, I. Charalambidou & S. Pfendler, “Cave exploration and cave studies for sciences, protection, education and territorial development”, Congress of the European Speleological Federation, EuroSpeleoforum, Ebensee, Austria, 2018.

T. Santagata, J. De Waele, I. D’Angeli, I.M. Foianini, P. Audra, D. Cailhol & P. Tognini, “Laser scanning and 3D mobile mapping of high-altitude caves in Valmalenco (Lombardia, Italy)”, Congress of the European Speleological Federation, EuroSpeleoforum, Ebensee, Austria, 2018.

I.M. D’Angeli, P. Audra, D. Cailhol, J. De Waele, I. Foianini, V. Jurado, A.Z. Miller, C. Saiz-Jimenez, T. Santagata, P. Tognini & M. Formentini,  “Late stage condensation-corrosion in high mountain marble caves (Val di Scerscen, Bernina Massif, Valtellina, Italy)”, European Geosciences Union General Assembly, Session NH8.2/GM7.5/HS11.35/SSS13.42 (Speleogenesis, Geomorphology and Hazards in Karst), Vienna, Austria, 2018.

J. Soninbayar & P. Audra, “Dam break simulation using DHI-Mike21 in the Eg hydropower plant, Mongolia”, SimHydro 2017 Choosing the right model in applied hydraulics, Sophia-Antipolis, France, 2017.

R. Legriou, F. Baali, A. Hamad, I. Abdeslam, P. Audra, D. Caihol, S. Jaillet & B. Arfib, “Hydrochemistry and isotopic study for a karstic aquifer in the region of Tebessa, Northeast-Algeria”, 1st International Symposium on Water Resources and Environment Impact Assessment in North Afrika, Gafsa, Tunisia, 2017.

R. Mouici, P. Audra, C. Fedhi, D. Cailhol, H. Benhammadi & S. Jailler, “Apport des méthodes géophysiques, géotechniques et de la spéléologie à l’étude du karst de la region de Chéria (NE algérien)”, 1st International Symposium on Water Resources and Environment Impact Assessment in North Afrika, Gafsa, Tunisia, 2017.

D. Belfar, C. Fehdi, B. Arfib & P. Audra, “Hydrogeochemical and hydrogeological study of a karst aquifer in the Tezbent plateau, Tebessa region, Northeast of Algeria”, International Conference on Applied Geology & Environment, ENIS, Tunisia, 2016.

A. Al-Farraj Al Ketbi, D. Caihol, M. Knez, P. Audra & T. Slabe, “Karstology in arid regions”, Emirates geographical Society, Abstracts, Abu Dhabi, UAE, 20 p., 2016.

P. Camps, A. Goupil, P. Audra, T. Poidras, C. Carvallo & D. Bosch, “Potentials and limitations of calcite speleothems to chart the Secular Variation of the Earth’s magnetic field during the Holocene”, AGU Fall Meeting, San Francisco, USA, 2015.

P. Audra & M. Assaba, “Suivi des sources en France”, Réunion de clôture projet ALCOTRA (Alirhys n° 222), Polytech Nice-Sophia, France, 2015.

M. Assaba & P. Audra, “Modélisation hydrologique et estimation des ressources hydriques souterraines”, Réunion de clôture projet ALCOTRA (Alirhys n° 222), Polytech Nice-Sophia, France, 2015.

P. Audra & M. Assaba, “Suivi des sources en France”, Réunion de clôture projet ALCOTRA (Alirhys n° 222), Regione Piemonte, Torino, Italy, 2015.

M. Assaba & P. Audra, “Modélisation hydrologique et estimation des ressources hydriques souterraines”, Réunion de clôture projet ALCOTRA (Alirhys n° 222), Regione Piemonte, Torino, Italy, 2015.

M. Vattano, P. Audra, J.-Y. Bigot, J. De Waele, G. Madonia & J.-C. Nobecourt, “Sulfuric Acid Water Table Caves (Grotte du Chat / Acqua Fitusa / Bad Deutsch Altenburg + Kraushöhle)”, Karst Waters Institute Special Publication, vol. 18 (Hypogene Cave Morphologies - Selected papers and abstracts, Symposium San Salvador Island, Bahamas 2014), p. 31-35. Karst Waters Institute, Leesburg, Virginia, 2014.

P. Audra, J.-Y Bigot, H. Camus, C. Gauchon & M. Wienin, “Hypogenic speleogenesis with ferruginous ore. The Piei mine-cave (Lagnes, Vaucluse, France)”, Memorie dell’Istituto Italiano di Speleologia, S. II, n° 28 (2^nd International-symposium on mine caves, Iglesias, Italy, p. 41-.70, 2013.

P. Audra & J.-Y. Bigot, “Rare sulfate minerals (fibroferrite) and hypogene sulfuric speleogenesis in Baume Galinière Cave (Alpes-de-Haute-Provence, France)”, 8^th IAG International Conference on Geomorphology, Paris, France 2013.

P. Audra & J.-C. Nobecourt, “Hydrodynamic of the Coulomp karst spring, the largest in French Southern Alps”, 8^th IAG International Conference on Geomorphology, Paris, France 2013.

F. Gasquez, F. Rull, J.-M. Calaforra, J. Martinez-Frias, A. Sanz & P. Audra, “Raman spectroscopy in the study of hydrothermal cave minerals: Implications for research on Mars”, European Geosciences Union, General Assembly, Vienna, Austria, 2013.

M. Temoski & P. Audra, “Evolution of Cave Provalata: remarkable example of hypogenic thermal carbonic and sulfuric acid speleogenesis”, In M. Filippi & P. Bosak (Eds) - International Congress of Speleology, vol. 3, p. 412-417, Brno, Czech Speleological Society. Praha, 2013.

F. Gabrovsek, P. Hauselmann & P. Audra, “The role of base level incision and transient recharge in vertical organisation of karst network”, In M. Filippi & P. Bosak (Eds) - International Congress of Speleology, vol. 3, p. 362-363, Brno, Czech Speleological Society, Praha, 2013.

M. Vattano, P. Audra, F. Benvenuto, J.-Y. Bigot, J. De Waele, E. Galli, G. Madonia & J.-C. Nobecourt, “Hypogenic caves of Sicily (Southern Italy)”, In M. Filippi & P. Bosak (Eds) - International Congress of Speleology, vol. 3, p. 144-149, Brno, Czech Speleological Society. Praha, 2013.

P. Audra & J.-C. Nobecourt, “Lag and transfer time inferred from melting cycles record in the Coulomp karst spring (Alpes de Haute-Provence, France)”, In M. Filippi & P. Bosak (Eds) - International Congress of Speleology, vol. 3, p. 335-339, Brno, Czech Speleological Society, Praha, 2013.

P. Audra & J.-C. Nobecourt, “Rare sulfates (mirabilite, eugsterite) in the dry microclimate of Chamois Cave (Alpes-de-Haute-Provence, France)”, In M. Filippi & P. Bosak (Eds) - International Congress of Speleology, vol. 3, p. 432-436, Brno, Czech Speleological Society, Praha, 2013.

P. Audra, J.-Y. Bigot, F. Gasquez, F. Rull & H. Camus, “Hypogene sulfuric acid speleogenesis and rare sulfate minerals (fibroferrite, jarosite-group) in Baume Galinière Cave (Alpes-de-Haute-Provence, France)”, In M. Filippi & P. Bosak (Eds) - International Congress of Speleology, vol. 3, p. 426-431, Brno, Czech Speleological Society, Praha, 2013.

M. Vattano, P. Audra, J.-Y. Bigot, J. De Waele, G. Madonia & J.-C. Nobecourt, “Acqua Fitusa Cave: an example of inactive water-table sulphuric acid cave in Central Sicily”, Rend. Online Soc. Geol. It., vol. 21, p. 637-639. Società Geologica Italiana, 2012.

M. Vattano, P. Audra, J.-Y. Bigot, J. De Waele, J.-C. Nobecourt, C. Di Maggio & G. Madonia, “Primi risultati su alcune grotte ipogeniche della Sicilia”, IV Convegno Nazionale AIGeo, Palermo, vol. abstract, p. 61, 2012.

P. Audra & J.-C. Nobecourt, “Rare sulfates (mirabilite, eugsterite) in a mountain cave due to dry microclimate (Chamois Cave, Alpes-de-Haute-Provence, France)”, Proceedings of the 13^th national Congress of Speleology, Muotathal, p. 103-108, Swiss Society of Speleology, 2012.

P. Audra & J.-C. Nobecourt, “The cave is warm in winter! Role of geothermal gradient on the Chamois Cave climate (Alpes-de-Haute-Provence, France)”, Proceedings of the 13^th national Congress of Speleology, Muotathal, p. 103-108, Swiss Society of Speleology, 2012.

P. Audra & J.-C. Nobecourt, “Flooding in epiphreatic passages. Analysis of the 4-5 Nov. 2011 flood in the Chamois Cave (Alpes-de-Haute-Provence, France)”, Proceedings of the 13^th national Congress of Speleology, Muotathal, p. 103-108, Swiss Society of Speleology, 2012.

P. Audra, “Une cavité hypogène minéralisée dans le massif de la Pierre Saint-Martin : la grotte d’Oilloki (Ste-Engrâce, Pyrénées-Atlantiques)”, Karstologia Mémoires, n° 17 (Colloque international : Le karst, indicateur performant des environnements passés et actuels. Journées de l’AFK, Arette 2007), p. 176-182, 2009.

P. Audra, L. Mocochain, J.-Y. Bigot & J.-C. Nobecourt, “L’association morpho-sédimentaire bubble trails - folia : un indicateur de spéléogenèse hypogène carbonique. Exemple de la grotte de l’Adaouste (Provence, France)”, Karstologia mémoires, n° 17 (Colloque international : Le karst, indicateur performant des environnements passés et actuels. Journées de l’AFK, Arette 2007), p. 183-191, 2009.

P. Audra, L. Mocochain & J.-Y. Bigot, “Spéléogenèse per ascensum par remontée du niveau de base. Interprétation des réseaux ennoyés, dénoyés, des sources vauclusiennes et des puits-cheminées”, Karstologia mémoires, n° 17 (Colloque international : Le karst, indicateur performant des environnements passés et actuels. Journées de l’AFK, Arette 2007), p. 183-191, 2009.

P. Audra, L. Mocochain & J.-Y. Bigot, “Base level rise and Per Ascensum Model of Speleogenesis (PAMS). Interpretation of deep phreatic karsts, vauclusian springs and chimney-shafts”, Proceedings of the 15^th International Congress of Speleology, Kerrville (TX), vol. 2, p. 788-794, 2009.

P. Audra, L. Mocochain, J.-Y. Bigot & J.-C. Nobecourt, “The pattern of hypogenic caves”, Proceedings of the 15^th International Congress of Speleology, Kerrville (TX), vol. 2, p. 795-800, 2009.

J. De Waele, L. Plan, P. Audra, A. Rossi, C. Spotl, V. Polyak & B. McIntosch, “Kraushöhle (Austria): Morphology and mineralogy of an alpine sulfuric acid cave”, Proceedings of the 15^th International Congress of Speleology, Kerrville (TX), vol. 2, p. 831-837, 2009.

P. Audra, L. Mocochain, J.-Y. Bigot & J.-C. Nobecourt, “Folia speleothems: a hypogenic degassing origin”, In: Stafford K.W., Land L. & Veni G. — Advances in Hypogene Karst Studies, NCKRI Symposium, n° 1, p. 40-50. Carlsbad, 2009.

L. Plan, J. De Waele, P. Audra, A. Rossi, V. Polyak & C. Spotl, “The first sulphuric acid cave in the Alps – Kraushöhle (Styria, Austria)”, Hypogenic Speleogenesis and Karst Hydrogeology of Artesian Basins, Chernivtsy, p. 129, 2009.

P. Audra, L. Mocochain, J.-Y. Bigot & J.-C. Nobecourt, “Morphological indicators of speleogenesis: hypogenic speleogens”, Hypogenic Speleogenesis and Karst Hydrogeology of Artesian Basins, Chernivtsy, p. 23-32, 2009.

P. Audra, L. Mocochain, J.-Y. Bigot & J.-C. Nobecourt, “Hypogenic cave pattern” Hypogenic Speleogenesis and Karst Hydrogeology of Artesian Basins, Chernivtsy, p. 17-22, 2009.

E. Gilli, F. Boudin, P. Audra, A. Gomez, J.-C. Marie & N. Florsch, “Geodesic variations induced by hydrology on the karstic plateau of Calern (Alpes-Maritimes, France)”, Geophysical Research Abstracts, EGU General Assembly, 2009.

G. Brocard, C. Teyssier, C. Authemayou, J. Willenbring & P. Audra, “Deformation and rearrangement of a range-transverse drainage by successive transpressional and transtensional events in Guatemala”, Geophysical Research Abstracts, vol. 11, EGU General Assembly, 2009.

J. De Waele, L. Plan, P. Audra, A. Rossi, C. Spotl, V. Polyak & B. McIntosch, “Development and evolution of an alpine sulphuric acid cave: Kraushöhle (Austria)”, Geophysical Research Abstracts, EGU General Assembly, 2009.

Revues nationales :

P. Audra, “Les minéraux sulfatés (gypse, epsomite, héxahydrite) de la grotte du Mounard, Saint-Martin-d'Entraunes, Alpes Maritimes”, Karstologia, n° 80, p. 25-30, 2022.

P. Audra, J.Y. Bigot & J.C. Nobécourt, “Hydrologie du karst en bande nummulitique du système de la Lare (Saint-Benoît, Alpes-de-Haute-Provence). Interprétation de traçages et de suivis hydrologiques”, Karstologia, n° 76, p. 25-32, 2020.

Conférences nationales :

D. Cailhol, P. Audra & F. Derym, “Le contexte karstique et tectonique de la bordure du fossé de Valence. Évolutions du karst de Châteaubourg, Crussol et Soyons en bordure de la vallée du Rhône”, Colloque international de l’AFEQ, Strasbourg, 2022.

N. Vanara, P. Audra, J.Y. Bigot, L. Bruxelles, D. Cailhol, H. Caillaud, H. Camus, J. Canerot, S. Chedeville, G. Dandurant, B. Lans, L. Magne, R. Maire, M. Rabanit, D. Rousset, G. Sénéchal, Y. Bramoullé, G. Parent, D. Garate, C. Normand & O. Rivero, “tudes paléoenvironnementales aux grottes d’Isturitz et d’Oxocelhaya (Saint-Martin-d’Arberoue), 2012-2017”, Bilan de six années de recherche, Journée archéologique du Pays basque, Saint-Étienne-de-Baigorry, 13 juillet 2019.

N. Vanara, P. Audra, D. Cailhol, J.Y. Bigot, H. Camus, L. Bruxelles, C. Ferrier, L. Magne, Y. Bramoullé, G. Parent, J. Chauvin, L. Barriquand, D. Garate, C. Normand, A. Labarge, A. Villaluenga Martinez, F. Urkia, O. Rivero & P. Dumoniter, “Les chiroptères comme agent d’érosion endokarstique. Conséquences sur la conservation des objets archéologiques, l’exemple de la grotte d’Isturitz (Pyrénées occidentales, France)”, Table-ronde "Vivre pendant la dernière glaciation. Occupations humaines et paléoenvironnements : quelles spécificités dans les Pyrénées ?", Toulouse, 2019.

L. Barriquand, P. Audra & M. El Kadiri, “Premiers éléments d’aérologie de la grotte du Chameau, vallée de Zegzel, Maroc oriental”,  Karst2018, Chambéry, France, 2018.

S. Jaillet, P. Audra, J.Y. Bigot, L. Bruxelles, G. Dandurand, C. Gauchon & N. Vanara, “Quarante années de l’association française de karstologie (AFK)”. Karst2018, Chambéry, France, 2018.

P. Camps, A. Goupil, P. Audra, T. Poidras & D. Bosch, “Le magnétisme des spéléothèmes de la grotte des Théoriciens (Saint-Benoit, Alpes-de-Haute-Provence)”, 3e Colloque PMAG2015 : Magnétisme en Sciences de la Terre, de l’Univers, de l'Environnement et de l'Homme en France : résultats récents et prospective, Aix-en-Provence, 2015.

P. audra & D. Cailhol, “Contexte géomorphologique des grottes de Soyons, Ardèche”, 23e Rencontre d’Octobre, Le Châtelard, 2014.

P. Audra & M. Assaba, “Contribution du manteau neigeux à la recharge des aquifères : cas d’étude sur le massif sud-alpin. Projet Alirhys”, 5e Rencontres scientifiques : La ressource en eau pour la production d’eau potable. Lyonnaise des eaux — Suez-environnement — Polytech Nice-Sophia, Sophia Antipolis, 2014.