Literatura académica sobre el tema "Nuages convectifs"
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Artículos de revistas sobre el tema "Nuages convectifs"
Cornet, Céline, Eric Defer, Didier Ricard, Céline Cheymol, Adrien Deschamps y Laurène Gillot. "La mission spatiale C³IEL pour l'étude des nuages convectifs". La Météorologie, n.º 125 (2024): 002. http://dx.doi.org/10.37053/lameteorologie-2024-0023.
Texto completoCoquillat, Sylvain, Véronique Pont, Mickaël Pardé, Michaël Kreitz, Dominique Lambert, Ronan Houel, Didier Ricard, Eric Gonneau, Pierre de Guibert y Serge Prieur. "Découverte d'une anomalie électrique dans des orages méditerranéens". La Météorologie, n.º 120 (2023): 046. http://dx.doi.org/10.37053/lameteorologie-2023-0016.
Texto completoVentre, Axel, Gabriel Hausknost, Serge Soula, Sylvain Coquillat, Janusz Mlynarczyk y Alex Hermant. "Mécanismes physiques d'un éclair nuage-air ascendant au-dessus d'un orage méditerranéen". La Météorologie, n.º 124 (2024): 035. http://dx.doi.org/10.37053/lameteorologie-2024-0011.
Texto completoWeckwerth, Tammy M., Hanne V. Murphey, Cyrille Flamant, Janine Goldstein y Crystalyne R. Pettet. "An Observational Study of Convection Initiation on 12 June 2002 during IHOP_2002". Monthly Weather Review 136, n.º 7 (1 de julio de 2008): 2283–304. http://dx.doi.org/10.1175/2007mwr2128.1.
Texto completoCai, Weihua, Zhifeng Zheng, Changye Huang, Yue Wang, Xin Zheng y Hongna Zhang. "Lattice Boltzmann simulation of Rayleigh-Benard convection in enclosures filled with Al2O3-water nanofluid". Thermal Science 22, Suppl. 2 (2018): 535–45. http://dx.doi.org/10.2298/tsci171023038c.
Texto completoScialom, G. y Y. Lemaître. "Vertical Moistening by AMMA Mesoscale Convective Systems". Journal of Atmospheric and Oceanic Technology 28, n.º 5 (1 de mayo de 2011): 617–39. http://dx.doi.org/10.1175/2010jtecha1486.1.
Texto completoCazelles, B. y D. Fontvieille. "Modélisation d'un écosystème lotique pollué par une charge organique : prise en compte de l'hydrodynamique et des mécanismes de transport". Revue des sciences de l'eau 2, n.º 2 (12 de abril de 2005): 183–209. http://dx.doi.org/10.7202/705028ar.
Texto completoShah, Zahir, Anwar Saeed, Imran Khan, Mahmoud M. Selim, Ikramullah y Poom Kumam. "Numerical modeling on hybrid nanofluid (Fe3O4+MWCNT/H2O) migration considering MHD effect over a porous cylinder". PLOS ONE 16, n.º 7 (1 de julio de 2021): e0251744. http://dx.doi.org/10.1371/journal.pone.0251744.
Texto completoMiller, Paul W. y Thomas L. Mote. "A Climatology of Weakly Forced and Pulse Thunderstorms in the Southeast United States". Journal of Applied Meteorology and Climatology 56, n.º 11 (noviembre de 2017): 3017–33. http://dx.doi.org/10.1175/jamc-d-17-0005.1.
Texto completoSheng He. "Exploring Medium and Low-Temperature Convective Geothermal Resources Through Controlled Source Audio Magnetotelluric Mothod". Journal of Electrical Systems 20, n.º 7s (4 de mayo de 2024): 46–57. http://dx.doi.org/10.52783/jes.3248.
Texto completoTesis sobre el tema "Nuages convectifs"
Strauss, Clément. "Quelle turbulence sur les bords des nuages convectifs ?" Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30289.
Texto completoImproving the representation of turbulence at kilometre and hectometre scales is an important issue for nu- merical weather prediction models. The turbulence parametrization according to Cuxart et al. (2000) (noted CBR), currently used in the AROME and Méso-NH models, is not satisfactory in convective clouds, but a new parameterization introduced by Moeng (2014) has shown a strong potential to represent vertical thermodynamic fluxes on a mature cumulonimbus case (Verrelle et al., 2017). In this thesis, two LES (Large Eddy Simulation) of deep convection at 50-m then 5-m resolutions allow to generalize these results to a population of convective clouds at different phases of their life cycle then to a cumulus congestus and to study most of the 2nd order moment turbulent fluxes at different horizontal resolutions (50 m, 100 m, 250 m, 500 m, 1 km and 2 km) by filtering the fields of the LES. The Moeng parametrization provides better results than the CBR parametrization for vertical thermody- namical fluxes but also, to a lesser extent, for horizontal thermodynamical fluxes, both inside the cloud and at its edges. The improvement is less obvious for dynamical fluxes. The LES at 5 m then allows to characterize and quantify the turbulence, instabilities and thermodynamic and dynamic processes at the edges of the cumulus. The turbulence at the edges has a finer scale than that inside the cumulus. The dynamical production of subgrid turbulence largely dominates over the thermal production in the whole cloud. The cloudy air is strongly renewed by a mainly lateral entrainment. This is caused by different types of instabilities with, in particular, a large-scale toroidal circulation near the top of the cloud. There are few and shallow penetrative downdrafts at the top of the cloud. Near the edges of the cumulus, downdrafts coexist with a buoyancy inversion. Evaporative cooling, mainly present on the edges of the cumulus, contributes to this inversion and decreases the convective circulation. It also influences the path of the air entrained in the cloud but has little impact on the instabilities. The in-depth study carried out on the basis of numerous diagnoses, such as budgets or lagrangian tracers over large grid simulations, contributes to improve our understanding of the processes driving the exchanges between the cloud and its environment
Burnet, Frédéric. "Validation des mesures aeroportees de la microphysique nuageuse et etude des processus d'entrainement-melange dans les nuages convectifs". Toulouse 3, 1999. http://www.theses.fr/1999TOU30097.
Texto completoPeroni, Raphaël. "Télédétection du contenu en vapeur d'eau au-dessus et autour de nuages convectifs". Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILR083.
Texto completoDespite significant advances in atmospheric physics research over the past few decades, many uncertainties persist regarding our understanding of climate change. Current knowledge indicates that clouds play a major role in these uncertainties due to complex interactions involving aerosols, water vapor, clouds, global atmospheric circulation, convection, and precipitation. Water vapor plays a crucial role in clouds formation and development, especially those resulting from convective phenomena that redistribute water vapor in the atmosphere through exchanges between clouds and their immediate environment. Therefore, a better understanding of water vapor content above and around clouds is necessary to improve our comprehension of interactions between water vapor and clouds and to help the scientific community better constrain LES models and numerical weather forecasting models. Our research is part of the C³IEL space mission, which aims to enhance our knowledge of the 3D envelope of convective clouds, their horizontal and vertical development velocities, the water vapor content above and around clouds, and the electrical activity associated with these convective systems. The focus of this thesis concerns the retrieval of integrated water vapor content in the presence of clouds from satellite observations. This retrieval was achieved through a Bayesian probabilistic approach: the optimal estimation method. So far, few studies have explicitly demonstrated the feasibility of such inversion under cloudy atmosphere because of the complexity related to the penetration and scattering of radiation within the cloud. This increases the number of parameters involved in the relationship between radiance and water vapor content.Radiative transfer simulations were conducted in the three SWIR spectral bands defined for the study of water vapor content in the context of the C³IEL mission. The atmosphere was assumed to be composed of homogeneous plan-parallel layers, and synthetic radiance datasets were generated for testing the retrieval algorithm developed in this thesis. The feasibility of retrieving integrated water vapor content above a cloud and over the ocean from SWIR radiances was shown with a precision of approximately 1 kg/m² for optically dense clouds. However, the precision of this retrieval decreases as the cloud optical thickness decreases. Tests were then realized with realistic water vapor and cloud extinction profiles that present non-homogeneous cloudy vertical profiles. This shows that integrated water vapor content above liquid water clouds could be retrieved with a positive bias related to cloud penetration of approximately 2.18 kg/m². This value is of the same order of magnitude than those obtained in previous work under clear-sky conditions. In the presence of convective clouds containing both liquid and ice water, characterized by a significant vertical extension and thus a high top altitude, very high optical thickness and very low water vapor content, the retrieval algorithm does not succeed to provide a valid retrieval. Suggestions are therefore proposed to improve water vapor content retrievals in realistic cases and define the retrievable limit for water vapor content
Verrelle, Antoine. "Modélisation de la turbulence dans les nuages convectifs profonds aux résolutions kilométrique et hectométrique". Phd thesis, Toulouse, INPT, 2015. http://oatao.univ-toulouse.fr/14522/1/Verrelle_partie_1_sur_5.pdf.
Texto completoSane, Youssouph. "Représentation du cycle de vie des systèmes convectifs dans le modèle LMDZ pendant la campagne AMMA 2006". Paris 6, 2011. http://www.theses.fr/2011PA066051.
Texto completoCHAUMAT, LAURE. "Etude experimentale des processus de condensation dans les nuages convectifs : elargissement des spectres et distribution spatiale des gouttelettes". Clermont-Ferrand 2, 1999. http://www.theses.fr/1999CLF21118.
Texto completoKayiranga, Théoneste. "Contribution a l'etude du cycle diurne des nuages convectifs au moyen de l'imagerie satellitaire au dessus de l'afrique tropicale". Paris 6, 1988. http://www.theses.fr/1988PA066322.
Texto completoKayiranga, Théoneste. "Contribution à l'étude du cycle diurne des nuages convectifs au moyen de l'imagerie satellitaire au-dessus de l'Afrique tropicale". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37614722s.
Texto completoShamekh, Sara. "The impact of sea surface temperature on the aggregation of deep convective clouds". Electronic Thesis or Diss., Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLE041.
Texto completoThis study investigates the impact of Sea Surface Temperature (SST) heterogeneities on the aggregation of convective clouds, using 3D cloudresolving simulations of radiativeconvective equilibrium. The SST heterogeneities are either imposed or interactive. In imposed cases, a spatiotemporally fixed warm SST anomaly (Hot-spot) with radius R and temperature anomaly ΔT is introduced at the center of the domain. The hot-spot significantly accelerates aggregation and extends the range of SSTs for which aggregation occurs. A convective instability over the hot-spot leads to stronger convection and generates a large-scale circulation, forcing subsidence drying outside the hot-spot. A large/warm hot-spot drives the aggregation even without radiative feedbacks. In cases where SST heterogeneities are interactive, the ocean is modeled as one layer slab ocean, with a constant mean but spatially varying temperature. The interactive SST decelerates the aggregation, especially with shallower slab. SST anomaly in dry regions is positive at first, thus opposing the diverging shallow circulation known to favor self-aggregation. With further drying, it becomes negative and favors the shallow circulation. The shallow circulation is found to be well correlated with the aggregation speed. It can be linked to a positive surface pressure anomaly, itself the consequence of SST anomalies and boundary layer radiative cooling. Including a diurnal cycle in simulations with interactive SST results in faster triggering of dry patches and accelerates the aggregation for shallow slabs, thus reducing the dependency of aggregation on slab depth
Durieux, Laurent. "Etude des relations entre les caractéristiques géographiques de la surface et les nuages convectifs dans la région de l'arc de déforestation en Amazonie". Aix-Marseille 1, 2002. http://www.theses.fr/2002AIX10059.
Texto completoActas de conferencias sobre el tema "Nuages convectifs"
MERROUCHI, Rabia, Jacques PIAZZOLA, Mohamed CHAGDALI y Soumia MORDANE. "Etude, en zone méditerranéenne, de l’influence des aérosols marins côtiers sur les comportements microphysiques des nuages convectifs". En Conférence Méditerranéenne Côtière et Maritime - Coastal and Maritime Mediterranean Conference. Editions Paralia, 2011. http://dx.doi.org/10.5150/cmcm.2011.076.
Texto completoLee, Yong-Jiun, Poh-Seng Lee y Siaw-Kiang Chou. "Experimental Investigation of Silicon-Based Oblique Finned Microchannel Heat Sinks". En 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-23413.
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