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Artykuły w czasopismach na temat "Modèle de transport chimique":
Lavoie, Michel, Peter G. C. Campbell i Claude Fortin. "Importance de mieux connaître les mécanismes de transport des métaux pour la prédiction de l’accumulation et de la toxicité des métaux dissous chez le phytoplancton : récentes avancées et défis pour le développement du modèle du ligand biotique". Revue des sciences de l’eau 29, nr 2 (6.06.2016): 119–47. http://dx.doi.org/10.7202/1036544ar.
Michou, M., i V. H. Peuch. "Échanges en surface dans le modèle de chimie transport multi-échelles MOCAGE". Revue des sciences de l'eau 15 (12.04.2005): 173–203. http://dx.doi.org/10.7202/705492ar.
Es-Sette, Btissame, Youssef Ajdor, Fatiha Zidane, Abdelbassit Fakhraddine i Ali Foutlane. "Évolution des métaux traces dans les eaux de l'oued Sebou en période humide — Approche par modélisation mathématique". Water Quality Research Journal 40, nr 2 (1.05.2005): 222–32. http://dx.doi.org/10.2166/wqrj.2005.025.
MARTIN, P., i C. LEROUX. "Le gène caprin spécifiant la caséine αs1 : un suspect tout désigné aux effets aussi multiples qu’inattendus". INRAE Productions Animales 13, HS (22.12.2000): 125–32. http://dx.doi.org/10.20870/productions-animales.2000.13.hs.3823.
Pelletier, Émilien, i Peter G. C. Campbell. "L’écotoxicologie aquatique - comparaison entre les micropolluants organiques et les métaux : constats actuels et défis pour l’avenir". Revue des sciences de l'eau 21, nr 2 (22.07.2008): 173–97. http://dx.doi.org/10.7202/018465ar.
Sič, Bojan, Laaziz El Amraoui, Andrea Piacentini, Virginie Marécal, Emanuele Emili, Daniel Cariolle, Michael Prather i Jean-Luc Attié. "Aerosol data assimilation in the chemical transport model MOCAGE during the TRAQA/ChArMEx campaign: aerosol optical depth". Atmospheric Measurement Techniques 9, nr 11 (22.11.2016): 5535–54. http://dx.doi.org/10.5194/amt-9-5535-2016.
El Aabaribaoune, Mohammad, Emanuele Emili i Vincent Guidard. "Estimation of the error covariance matrix for IASI radiances and its impact on the assimilation of ozone in a chemistry transport model". Atmospheric Measurement Techniques 14, nr 4 (13.04.2021): 2841–56. http://dx.doi.org/10.5194/amt-14-2841-2021.
Bencherif, H., L. El Amraoui, G. Kirgis, J. Leclair De Bellevue, A. Hauchecorne, N. Mzé i T. Portafaix. "Analysis of a rapid increase of stratospheric ozone during late austral summer 2008 over Kerguelen (49.4° S, 70.3° E)". Atmospheric Chemistry and Physics Discussions 10, nr 7 (23.07.2010): 17727–51. http://dx.doi.org/10.5194/acpd-10-17727-2010.
Bencherif, H., L. El Amraoui, G. Kirgis, J. Leclair De Bellevue, A. Hauchecorne, N. Mzé, T. Portafaix, A. Pazmino i F. Goutail. "Analysis of a rapid increase of stratospheric ozone during late austral summer 2008 over Kerguelen (49.4° S, 70.3° E)". Atmospheric Chemistry and Physics 11, nr 1 (14.01.2011): 363–73. http://dx.doi.org/10.5194/acp-11-363-2011.
Peiro, Hélène, Emanuele Emili, Daniel Cariolle, Brice Barret i Eric Le Flochmoën. "Multi-year assimilation of IASI and MLS ozone retrievals: variability of tropospheric ozone over the tropics in response to ENSO". Atmospheric Chemistry and Physics 18, nr 9 (17.05.2018): 6939–58. http://dx.doi.org/10.5194/acp-18-6939-2018.
Rozprawy doktorskie na temat "Modèle de transport chimique":
Dugault, Edouard. "Etude du transport et de l'évolution physico-chimique de masses d'air européennes au-dessus de l'Atlantique Nord sous des conditions anticycloniques". Paris 6, 2002. http://www.theses.fr/2002PA066518.
Cathala, Marie-Laure. "Assimilation de mesures chimiques d'ozone au niveau de la tropopause dans un modèle de chimie-transport global". Toulouse 3, 2004. http://www.theses.fr/2004TOU30034.
The tropopause has an important role in atmospheric dynamics and chemical composition which is due to exchanges which take place between two very different regions: troposphere and stratosphere. Strong vertical gradients take place in this region making its representation by numerical chemical-transport models difficult. The aim of this work is to force the numerical simulations with observations in order to obtain a better representation of the ozone fields in this region, in order to make phenomenological studies more realistic. The global scale chemical-transport model used for this purpose is MOCAGE which has been developed in Météo-France. Observations come from the MOZAIC european program, and include measurements of ozone, water vapour and other minor constituents obtained from instruments mounted on commercial aircraft since 1993. .
Muller, Martine. "Contribution à l'étude de dépôts en phase vapeur de semiconducteurs IV-VI par "hot wall epitaxy" : modèle thermodynamique du transport gazeux". Montpellier 2, 1990. http://www.theses.fr/1990MON20114.
Marinoni, Marianna. "Implémentation des isotopes dans un modèle hydrogéochimique couplé". Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAH001/document.
The work describes the development of a reactive transport code named SpeCTr (Spéciation Cinétique Transport in French). The code, able to describe isotopic fractionation, is obtained through the coupling of a transport module and a reaction module that describes the main chemical reactions (operator splitting approach). A consistent portion of the work is dedicated to the improvement of the numerical methods employed in the reaction module for solving thermodynamic equilibrium (Newton Raphson method modified with scaling and Positive Continuous Fractions) and mixed equilibrium and kinetic reactions (formulation and solution of systems of differential and differential-algebraic equations). The code was verified through the solution of different benchmarks (batch and reactive transport simulations) and applied to perform 1D, 2D and 3D simulations of laboratory experiments dedicated to calcite crystals dissolution in a column of porous medium
Coopmann, Olivier. "Vers une meilleure assimilation des observations satellitaires infrarouges par le couplage des modèles météorologique et chimique". Thesis, Toulouse 3, 2019. http://www.theses.fr/2019TOU30303.
The Infrared Atmospheric Sounding Interferometer (IASI) is the instrument that provides the most satellite observations to the ARPEGE (Action de Recherche Petite Échelle Grande Scale) Numerical Weather Prediction (NWP) model at Météo-France. This sensor was developed jointly by CNES (Centre National d'Études Spatiales) and EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites) and is carried on board the Metop-A, B and C polar orbiting satellites. The assimilation of these observations requires the use of a Radiative Transfer Model (RTM) called RTTOV at Météo-France. The latter uses an a priori knowledge of the most likely thermodynamic and chemical state of the atmosphere to simulate IASI observations. At Meteo-France, the background thermodynamic fields come from a short-term forecast provided by ARPEGE but the information on the chemical composition of the atmosphere comes from a single vertical reference profile for each chemical species, provided by RTTOV. However, this approximation has a significant impact on the quality of simulations and the use of infrared satellite observations for NWP. Chemistry Transport Models (CTM) are able to provide forecasts of the chemical composition of the atmosphere. At Météo-France, this CTM is called MOCAGE. This thesis therefore proposes a method toward a better assimilation of infrared satellite observations by coupling meteorological and chemical models. The first part of the work was to evaluate the sensitivity of infrared observations to some atmospheric compounds. To do so, we participated in the APOGEE (Atmospheric Profiles Of GreenhousE gases) measurement campaign, which enabled us to measure in situ profiles of CO2, CH4 and O3. These data were used both to validate the quality of our simulations and as verification data to assess atmospheric chemical composition derived from CTM. We then supervised two Master 1 trainees to carry out an evolving climatology of CO2 in order to improve the use of infrared satellite observations. From these studies, it appears that the quality of the simulations depends on the accuracy of the chemical information used and the chemical component with the greatest impact on the simulations is ozone. Thus, the rest of the thesis work was therefore focused on ozone. A first step was to prepare the assimilation of ozone-sensitive IASI channels. This work has shown both that the use of realistic ozone information from a CTM can better simulate ozone-sensitive observations and provide additional information, simultaneously improving temperature, humidity and ozone analyses [Coopmann et al., 2018]. [...]
Srour, Zainab. "Unravelling the chlorine chemistry using simulations from the molecular scale to the global scale". Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILR038.
The discovery of the ozone hole over the Antarctic in the 1970s established the significance of gas-phase halogenated species in the atmosphere. These species play a crucial role in tropospheric and stratospheric chemistry, influencing ozone budget, atmospheric concentrations of key species (such as OH, NOx, and volatile organic compounds), and halogen interactions. Numerous studies have explored halogen chemistry using global models, however, most of the focus has been on bromine and iodine due to their higher reactivity compared to chlorine. This preference arises from the greater chemical stability of HCl compared to other halogen acids (HX, where X = Br, I).This thesis aims to unravel the chlorine chemistry in the troposphere starting from the molecular up to the global scales. This is done through the employment of different numerical tools: (i) quantum chemistry tools to predict the reactivity and thermokinetic parameters of the reaction between OH radicals and CH2ClOOH, which are challenging to obtain experimentally, (ii) the kinetic model “ASTEC” to determine the reactivity of gaseous chlorinated compounds on a short time scale; and (iii) the chemistry transport model “MOCAGE” to evaluate the impact of chlorine on the global atmospheric budget.The results show that the reaction between CH2ClOOH and OH radicals is of atmospheric interest with an overall rate constant 6.55 × 10-11 cm3 molecule-1 s-1 at 298 K computed at the M06-2X/6-311++G(3df,3p) level of theory. The kinetic modelling showed that the daytime reactivity of chlorinated compounds is more important than the night-time reactivity governed by photolysis and reactivity with OH radicals. Moreover, the global modelling by MOCAGE showed that the chlorine atmospheric budget is not only affected by chemical transformation, but also, it is altered by the physical processes including transport and deposition
Barré, Jérôme. "Assimilation de données satellites au limbe et au nadir dans un modèle de chimie-transport". Thesis, Toulouse, INPT, 2012. http://www.theses.fr/2012INPT0092/document.
Data assimilation combines in an optimal way a numerical model describing the evolution of the atmospheric chemical composition and the available trace gases measurements. In this thesis, data assimilation is used to characterize the ozone (O3) and the carbon monoxide (CO) distributions in the stratosphere and in the troposphere. The Chemistry Transport Model (CTM) MOCAGE (MOdèle de Chimie Atmosphérique à Grande Echelle) is used in a configuration with two nested domains at 2◦ (global) and at 0.2◦ (regional). To perform the assimilation experiments a 3D-FGAT variational method is used. We evaluate the complementarity of limb and nadir measurements available at the present day at characterizing the UTLS (Upper Troposphere Lower Stratosphere) region by assimilating simultaneously the two type of measurements. We particularly focus on the impacts of data assimilation of stratospheric ozone measurements on troposphere and conversely of tropospheric data assimilation on stratosphere. Showing the added value of the increased horizontal resolution in the UTLS assimilated fields and the synergistic effects of limb and nadir assimilation were the main objectives of this work. Development in the assimilation system have been made in the assimilation system with the nested domain. Data assimilation in the global domain is now taken in account and the boundary condition from the assimilated fields show significant impacts on the regional domain. Firstly, we assimilate stratospheric ozone profiles from MLS (Microwave Limb Sounder) to investigate two Stratosphere-Troposphere Exchange (STE) case studies.
Josse, Béatrice. "Représentation des processus de transport et de lessivage pour la modélisation de la composition chimique de l'atmosphère à l'échelle planétaire". Toulouse 3, 2004. http://www.theses.fr/2004TOU30108.
Bousserez, Nicolas. "Étude du transport intercontinental de la pollution atmosphérique entre l'Amérique du nord et l'Europe à l'aide du modèle de chimie-transport MOCAGE". Toulouse 3, 2008. http://www.theses.fr/2008TOU30330.
This work aims to characterize the intercontinental transport of pollution between North America and Europe. We focus our study on the summer 2004, using aircraft in situ data from the ICARTT experiment together with simulations from the MOCAGE global chemistry-transport model. In a first part we present an evaluation of the model against in situ measurements over three domains of interest : North-East United States, North Atlantic and Europe. In a second part we analyze the respective impacts of North American biomass burning and anthropogenic plumes on ozone chemistry over the North Atlantic. The last part of our study compares two different modeling strategies to take into account the high space and time variability of biomass burning sources: assimilating daily space-based CO observations into the model and using a daily emission inventory of fire emissions
Praga, Alexis. "Un modèle de transport et de chimie atmosphérique à grande échelle adapté aux calculateurs massivement parallèles". Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30012/document.
We present in this thesis the development of a large-scale bi-dimensional atmospheric transport scheme designed for parallel architectures with scalability in mind. The current version, named Pangolin, contains a bi-dimensional advection and a simple linear chemistry scheme for stratospheric ozone and will serve as a basis for a future Chemistry Transport Model (CTM). For mass-preservation, a van Leer finite volume scheme was chosen for advection and extended to 2D with operator splitting. To ensure mass preservation, winds are corrected in a preprocessing step. We aim at addressing the "pole issue" of the traditional regular latitude-longitude by presenting a new quasi area-preserving grid mapping the sphere uniformly. The parallelization of the model is based on the advection operator and a custom domain-decomposition algorithm is presented here to attain load-balancing in a message-passing context. To run efficiently on current and future parallel architectures, algebraic features of the grid are exploited in the advection scheme and parallelization algorithm to favor the cheaper costs of flops versus data movement. The model is validated on algebraic test cases and compared to other state-of-theart schemes using a recent benchmark. Pangolin is also compared to the CTM of Météo-France, MOCAGE, using a linear ozone scheme and isentropic coordinates
Książki na temat "Modèle de transport chimique":
Bolduc, Denis. Le modèle prévisionnel de transport du fret et des individus du Québec (TRAFIQ). Québec: Transports Québec, 2001.
Smith, Janet R. Gérer une commission royale: Un modèle de planification et d'organisation découlant de l'expérience de la Commission royale sur le transport des voyageurs au Canada. Ottawa, Ont: Centre canadien de gestion, 1994.
Kessler, David P. Momentum, heat, and mass transfer fundamentals. New York: Marcel Dekker, 1999.
Society of General Physiologists. Symposium. Molecular biology and function of carrier proteins: Society of General Physiologists, 46th Annual Symposium, Marine Biological Laboratory, Woods Hole, Massachusetts, 10-13 September 1992. New York: Rockefeller University Press, 1993.
Society of General Physiologists. (46th 1992 Marine Biological Laboratory). Molecular biology and function of carrier proteins. New York: Rockerfeller University Press, 1992.
Saravacos, George D., i Zacharias B. Maroulis. Transport Properties of Foods. Taylor & Francis Group, 2001.
Saravacos, George D., i Zacharias B. Maroulis. Transport Properties of Foods. Taylor & Francis Group, 2001.
Reible, Danny D., i Bruce Choy. Diffusion Models of Environmental Transport. Taylor & Francis Group, 2017.
Reible, Danny D., i Bruce Choy. Diffusion Models of Environmental Transport. Taylor & Francis Group, 2017.
Hu, Xiangyun, i Jianchao Cai. Petrophysical Characterization and Fluids Transport in Unconventional Reservoirs. Elsevier, 2019.
Części książek na temat "Modèle de transport chimique":
MENUT, Laurent. "La modélisation de chimie-transport". W Modélisation de la pollution atmosphérique régionale, 125–53. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9102.ch6.
"11 Transport de matière. Diffusion chimique". W Exercices de chimie des solides, 175–84. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0176-3.c013.
Kawamura, Fumie. "Le modèle chimique dans les jeux dialogiques sur la temporalité". W Diderot et le temps, 93–112. Presses universitaires de Provence, 2016. http://dx.doi.org/10.4000/books.pup.10673.
"Modèle expérimental d'étude mecanique et physico-chimique de l’interface acier-béton". W Interfaces in Cementitious Composites, 213–22. CRC Press, 1992. http://dx.doi.org/10.1201/9781482271256-31.
"11 Transport de matière (en 1'absence de champ électrique). Diffusion chimique". W La chimie des solides, 409–42. EDP Sciences, 2004. http://dx.doi.org/10.1051/978-2-7598-0173-2.c013.
Brochard-Wyart, F., i N. Borghi. "Les vésicules comme modèle du transport cellulaire · rôle des pores et des tubes". W Formulation cosmétique, 59–65. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0144-2.c008.
WACHTEL, Cl. "85 ans après, un risque toujours présent". W Médecine et Armées Vol. 45 No.1, 81–86. Editions des archives contemporaines, 2017. http://dx.doi.org/10.17184/eac.7460.
Kouwenhoven, Marco, i Pim Warffemius. "Prévision de la fiabilité des temps de parcours dans le transport routier : un nouveau modèle pour les Pays-Bas". W Mesurer les avantages socio-économiques des transports, 63–90. OECD, 2017. http://dx.doi.org/10.1787/9789282108239-4-fr.
Streszczenia konferencji na temat "Modèle de transport chimique":
SOTTOLICHIO, Aldo, Vincent HANQUIEZ, Barend VAN MAANEN, Joselyn ARRIAGADA, Isabel JALON ROJAS, Sabine SCHMIDT i Florent BIRRIEN. "Evolution hydrosédimentaire récente de l'estuaire de la Gironde. Apport d’un modèle de transport". W Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2014. http://dx.doi.org/10.5150/jngcgc.2014.055.
Chauchat, J., Sylvain Guillou, NV Phan, N. Barbry i KD Nguyen. "Simulation numérique du transport sédimentaire dans l’estuaire de la Seine avec un modèle diphasique 2-DV". W Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2004. http://dx.doi.org/10.5150/jngcgc.2004.047-c.
Khatib, D., i Mohamed Chagdali. "Application d'un modèle tridimensionnel de la circulation marine au transport et à la diffusion d'un rejet d'effluent". W Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 1998. http://dx.doi.org/10.5150/jngcgc.1998.020-k.