Search Results - "CHAMPOLLION, Cédric"

Preferential Pathways Inversion From Cross‐Borehole Electrical Data by Lelimouzin, Léa, Champollion, Cédric, Lévy, Léa, Roubinet, Delphine

“…Identification of preferential flow‐paths, such as fractures, is required for various issues in geosciences. When chemicals are injected into the subsurface,…”
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Variability of the water stock dynamics in karst: insights from surface-to-tunnel geophysics by Fores, Benjamin, Champollion, Cédric, Lesparre, Nolwenn, Pasquet, Sylvain, Martin, Aurélie, Nguyen, Frédéric

“…A hydrogeophysical field experiment was conducted on a karst hydrosystem in the south of France to investigate groundwater transfer and storage variability at…”
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Monitoring of groundwater redistribution in a karst aquifer using a superconducting gravimeter by Mouyen, Maxime, Longuevergne, Laurent, Chalikakis, Konstantinos, Mazzilli, Naomi, Ollivier, Chloé, Rosat, Séverine, Hinderer, Jacques, Champollion, Cédric

“…Geodetic tools monitor the earth’s deformation and gravity field. They are presently sensitive enough to record subtle changes triggered by hydrological…”
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On the use of GPS tomography to investigate water vapor variability during a Mistral/sea breeze event in southeastern France by Bastin, Sophie, Champollion, Cédric, Bock, Olivier, Drobinski, Philippe, Masson, Frédéric

“…Global Positioning System (GPS) tomography analyses of water vapor, complemented by high‐resolution numerical simulations are used to investigate a Mistral/sea…”
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New insights on fractures deformation from tiltmeter data measured inside the Fontaine de Vaucluse karst system by Lesparre, Nolwenn, Boudin, Frédérick, Champollion, Cédric, Chéry, Jean, Danquigny, Charles, Seat, Han Cheng, Cattoen, Michel, Lizion, Françoise, Longuevergne, Laurent

“…Tilt fluctuations can potentially reflect the response of hydrosystems to important rainfall. In this context, long baseline tiltmeters have been installed in…”
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Transfer of dissolved gases through a thick karstic vadose zone – Implications for recharge characterisation and groundwater age dating in karstic aquifers by Pérotin, Laïna, de Montety, Véronique, Ladouche, Bernard, Bailly-Comte, Vincent, Labasque, Thierry, Vergnaud, Virginie, Muller, Rémi, Champollion, Cédric, Tweed, Sarah, Seidel, Jean-Luc

“…•We sampled air and water at different depths until 120 m along a thick vadose zone.•We investigated transfers of gas and groundwater through a thick vadose…”
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The Convective and Orographically‐induced Precipitation Study (COPS): the scientific strategy, the field phase, and research highlights by Wulfmeyer, Volker, Behrendt, Andreas, Kottmeier, Christoph, Corsmeier, Ulrich, Barthlott, Christian, Craig, George C., Hagen, Martin, Althausen, Dietrich, Aoshima, Fumiko, Arpagaus, Marco, Bauer, Hans‐Stefan, Bennett, Lindsay, Blyth, Alan, Brandau, Christine, Champollion, Cédric, Crewell, Susanne, Dick, Galina, Di Girolamo, Paolo, Dorninger, Manfred, Dufournet, Yann, Eigenmann, Rafael, Engelmann, Ronny, Flamant, Cyrille, Foken, Thomas, Gorgas, Theresa, Grzeschik, Matthias, Handwerker, Jan, Hauck, Christian, Höller, Hartmut, Junkermann, Wolfgang, Kalthoff, Norbert, Kiemle, Christoph, Klink, Stefan, König, Marianne, Krauss, Liane, Long, Charles N., Madonna, Fabio, Mobbs, Stephen, Neininger, Bruno, Pal, Sandip, Peters, Gerhard, Pigeon, Grégoire, Richard, Evelyne, Rotach, Mathias W., Russchenberg, Herman, Schwitalla, Thomas, Smith, Victoria, Steinacker, Reinhold, Trentmann, Jörg, Turner, David D., van Baelen, Joel, Vogt, Siegfried, Volkert, Hans, Weckwerth, Tammy, Wernli, Heini, Wieser, Andreas, Wirth, Martin

“…Within the framework of the international field campaign COPS (Convective and Orographically‐induced Precipitation Study), a large suite of state‐of‐the‐art…”
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First Evidence of Correlation Between Evapotranspiration and Gravity at a Daily Time Scale From Two Vertically Spaced Superconducting Gravimeters by Carrière, Simon D., Loiseau, Bertille, Champollion, Cédric, Ollivier, Chloé, Martin‐StPaul, Nicolas K., Lesparre, Nolwenn, Olioso, Albert, Hinderer, Jacques, Jougnot, Damien

“…Estimating evapotranspiration (ET) is a primary challenge in modern hydrology. Hydrogravimetry is an integrative approach providing highly precise continuous…”
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Multi-approach assessment of the spatial distribution of the specific yield: application to the Crau plain aquifer, France by Seraphin, Pierre, Gonçalvès, Julio, Vallet-Coulomb, Christine, Champollion, Cédric

“…Spatially distributed values of the specific yield, a fundamental parameter for transient groundwater mass balance calculations, were obtained by means of…”
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Cross-Comparison and Methodological Improvement in GPS Tomography by Brenot, Hugues, Rohm, Witold, Kačmařík, Michal, Möller, Gregor, Sá, André, Tondaś, Damian, Rapant, Lukas, Biondi, Riccardo, Manning, Toby, Champollion, Cédric

“…GPS tomography has been investigated since 2000 as an attractive tool for retrieving the 3D field of water vapour and wet refractivity. However, this…”
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A lumped parameter model to evaluate the relevance of excess air as a tracer of exchanged flows between transmissive and capacitive compartments of karst systems by Sivelle, Vianney, Pérotin, Laïna, Ladouche, Bernard, de Montety, Véronique, Bailly-Comte, Vincent, Champollion, Cédric, Jourde, Hervé

“…The objective of this study was to evaluate the relevance of using excess air (EA) for the characterization of drain/matrix exchange in karst systems using a…”
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Estimating epikarst water storage by time-lapse surface-to-depth gravity measurements by Champollion, Cedric, Deville, Sabrina, Chery, Jean, Doerflinger, Erik, Le Moigne, Nicolas, Bayer, Roger, Vernant, Philippe, Mazzilli, Naomi

“…The magnitude of epikarstic water storage variation is evaluated in various karst settings using a relative spring gravimeter. Gravity measurements are…”
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First evaluation of an absolute quantum gravimeter (AQG#B01) for future field experiments by Cooke, Anne-Karin, Champollion, Cédric, Le Moigne, Nicolas

“…Quantum gravimeters are a promising new development allowing for continuous absolute gravity monitoring while remaining user-friendly and transportable. In…”
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Monitoring surface deformation of deep salt mining in Vauvert (France), combining InSAR and leveling data for multi-source inversion by Furst, Séverine Liora, Doucet, Samuel, Vernant, Philippe, Champollion, Cédric, Carme, Jean-Louis

“…The salt mining industrial exploitation located in Vauvert (France) has been injecting water at high pressure into wells to dissolve salt layers at depth. The…”
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Flexure of the India plate underneath the Bhutan Himalaya by Hammer, Paul, Berthet, Théo, Hetényi, György, Cattin, Rodolphe, Drukpa, Dowchu, Chophel, Jamyang, Lechmann, Sarah, Moigne, Nicolas Le, Champollion, Cédric, Doerflinger, Erik

“…We investigate flexural geometry and rheology of the India plate beneath the eastern Himalaya from a new gravity data set acquired in Bhutan. Compared to the…”
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GPS zenith delay sensitivity evaluated from high-resolution numerical weather prediction simulations of the 8–9 September 2002 flash flood over southeastern France by Brenot, Hugues, Ducrocq, Véronique, Walpersdorf, Andrea, Champollion, Cédric, Caumont, Olivier

“…Estimations of zenith total delays (ZTD) were obtained during postprocessing of a high‐resolution (2.4 km) nonhydrostatic atmospheric model (Méso‐NH). These…”
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Lateral uniformity of India Plate strength over central and eastern Nepal by Berthet, Théo, Hetényi, György, Cattin, Rodolphe, Sapkota, Soma Nath, Champollion, Cédric, Kandel, Thakur, Doerflinger, Erik, Drukpa, Dowchu, Lechmann, Sarah, Bonnin, Mickael

“…The current understanding of the Himalayan lithosphere stems mostly from cross-sections through the range at the longitude of the Kathmandu Basin. In this…”
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Evaluating surface and subsurface water storage variations at small time and space scales from relative gravity measurements in semiarid Niger by Pfeffer, Julia, Champollion, Cédric, Favreau, Guillaume, Cappelaere, Bernard, Hinderer, Jacques, Boucher, Marie, Nazoumou, Yahaya, Oï, Monique, Mouyen, Maxime, Henri, Christopher, Le Moigne, Nicolas, Deroussi, Sébastien, Demarty, Jérôme, Boulain, Nicolas, Benarrosh, Nathalie, Robert, Olivier

“…The acquisition of reliable data sets representative of hydrological regimes and their variations is a critical concern for water resource assessment. For the…”
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Diurnal Cycle of Water Vapor as Documented by a Dense GPS Network in a Coastal Area during ESCOMPTE IOP2 by Bastin, Sophie, Champollion, Cédric, Bock, Olivier, Drobinski, Philippe, Masson, Frédéric

“…Global positioning system (GPS) data from a dense network have been used for the analysis of the diurnal cycle of water vapor over Marseille, France, during…”
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Geophysical and geomorphological investigations of a Quaternary karstic paleolake and its underground marine connection in Cassis (Bestouan, Cassis, SE France) by Romey, Carole, Rochette, Pierre, Vella, Claude, Arfib, Bruno, Andrieu-Ponel, Valérie, Braucher, Régis, Champollion, Cédric, Douchet, Marc, Dussouillez, Philippe, Hermitte, Daniel, Mattioli, Emanuela, Parisot, Jean-Claude, Schwenninger, Jean-Luc

“…An original karstic system in a coastal alluvial plain located in a carbonate environment (Cassis, Provence — SE France) was studied using a multi-method…”
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