Littérature scientifique sur le sujet « Températures atmosphériques »
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Articles de revues sur le sujet "Températures atmosphériques"
Madelin, Malika, et Vincent Dupuis. « Intensité et spatialisation de l’îlot de chaleur urbain parisien à partir de données participatives ». Climatologie 17 (2020) : 9. http://dx.doi.org/10.1051/climat/202017009.
Texte intégralLe Roux, Renan, Laure De Rességuier, Marwan Katurji, Peyman Zawar-Reza, Andrew Sturman, Cornelis Van Leeuwen et Hervé Quénol. « Analyse multiscalaire de la variabilité spatiale et temporelle des températures à l’échelle des appellations viticoles de saint-émilion, pomerol et leurs satellites ». Climatologie 14 (2017) : 1–17. http://dx.doi.org/10.4267/climatologie.1243.
Texte intégralHare, F. Kenneth. « Recent Climatological Research in Labrador Ungava ». Cahiers de géographie du Québec 10, no 19 (12 avril 2005) : 5–12. http://dx.doi.org/10.7202/020560ar.
Texte intégralSerratrice, Jean François. « Suivi des déformations du massif rocheux sous la fondation de la pile VII du Pont du Gard ». Revue Française de Géotechnique, no 164 (2020) : 2. http://dx.doi.org/10.1051/geotech/2020023.
Texte intégralLauriol, Bernard, André Champoux et James T. Gray. « Répartition estivale des surfaces enneigées en Ungava, Nouveau-Québec ». Géographie physique et Quaternaire 38, no 1 (29 novembre 2007) : 37–47. http://dx.doi.org/10.7202/032534ar.
Texte intégralDouat, Claire, Thierry Dufour et João Santos Sousa. « Les plasmas froids et le Vivant, de nouvelles avancées ». Reflets de la physique, no 75 (avril 2023) : 24–30. http://dx.doi.org/10.1051/refdp/202375024.
Texte intégralCrétat, Julien, Yves Richard, Olivier Planchon, Justin Emery, Melissa Poupelin, Mario Rega, Julien Pergaud et al. « Impact de la topographie et de la circulation atmosphérique sur l’îlot de chaleur urbain en situation de canicule (Dijon, France) ». Climatologie 20 (2023) : 10. http://dx.doi.org/10.1051/climat/202320010.
Texte intégralNameche, T., et J. L. Vassel. « Bilan thermique sous climat tempéré des lagunes aérées et naturelles ». Revue des sciences de l'eau 12, no 1 (12 avril 2005) : 65–91. http://dx.doi.org/10.7202/705344ar.
Texte intégralChassefière, Éric. « Relevés de température et méthodes d'étalonnage des thermomètres à l'Observatoire de Paris (1683-1732) ». La Météorologie, no 119 (2022) : 031. http://dx.doi.org/10.37053/lameteorologie-2022-0082.
Texte intégralPitozzi, Enrico. « Aux bords de l’audible : une étude des théâtres du son ». Recherches sémiotiques 36, no 1-2 (7 septembre 2018) : 223–54. http://dx.doi.org/10.7202/1051186ar.
Texte intégralThèses sur le sujet "Températures atmosphériques"
Bouillon, Marie. « Températures atmosphériques homogènes dérivées des observations satellitaires IASI : restitution, variations spatio-temporelles et événements extrêmes ». Electronic Thesis or Diss., Sorbonne université, 2021. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2021SORUS317.pdf.
Texte intégralThe IASI instruments, launched in 2006, 2012 and 2018, observe radiance spectra from the Earth-atmosphere system, allowing us to retrieve atmospheric temperatures. The EUropean organisation for the exploitation of METeorological SATellites (EUMETSAT) computes surface and atmospheric temperatures from IASI observations since 2007. To improve the quality of the retrieved temperatures, EUMETSAT has performed several updates on the temperature processing algorithm. In this work, we show how the EUMETSAT temperature record is inhomogeneous and therefore not adapted to the study of temperatures on the long term. Therefore, a new atmospheric temperature product was computed from IASI spectra with an artificial neural network, using IASI radiances as input and ERA5 reanalysis temperatures as output. The temperatures retrieved with the neural network were validated against ERA5 temperatures and radiosounding temperatures. The validation showed good agreement between the three datasets from 750 to 7 hPa. At 2 hPa, the quality of the temperature products decreases because of the low amount of information on temperature within the IASI spectra at this altitude. This new homogeneous temperature record was then used to study extreme events, in particular Sudden Stratospheric Warmings (SSW). This work studies several SSWs that have happened since 2007, and shows that IASI is perfectly suited to study both temperature and ozone changes during these events. The temperatures were also used to observe the cold and heat waves that happened in the past few years. Finally, the temperatures were used to compute trends over the 2008-2020 period. The troposphere is warming, especially in the upper equatorial troposphere and in the Arctic. The stratosphere north of 50°S is also warming due to the slow ozone hole recovery. In the rest of the stratosphere, the temperatures are decreasing. This thesis presents an homogenous and independent temperature data record from IASI. The methods developed can and will be applied to the rest of the IASI mission and to its successor, the IASI-New Generation mission, which will launch in 2024
Varizat, Laurent. « Circuit de lecture d'un magnétomètre à induction pour l'étude de plasmas atmosphériques sur la mission JUICE ». Electronic Thesis or Diss., Paris 6, 2017. http://www.theses.fr/2017PA066536.
Texte intégralInduction magnetometers are used in many fields of scientific exploration from geophysics to astrophysics. In these two fields, the study of the magnetic components of natural electromagnetic waves requires particularly powerful instruments: sensitive and with low intrinsic noises to access magnetic fields of some fT/ . In the case of scientific instruments carried on satellites, constraints on temperature, consumption, congestion and radiation resistance are added to the other constraints. Integrated circuit technologies allow technological breakthrough, which results in a reduction in the size of embedded electronic circuits by a factor greater than 1000, while improving electrical and instrumental performances (reduction in consumption, noise sources, bandwidth and hardening of the electronics). A first thesis at the L2E (A. Rhouni) showed the relevance of a CMOS technology for this type of instrumentation. In this thesis, we describe the study conducted on integrated circuits subject to environmental constraints related to the future missions in which this type of instrument must be embarked (Mission JUICE of ESA). These constraints are becoming more and more severe (radiation dose > 300krad, temperature less than 100 Kelvin ...), taking into account throughout the design process is necessary. A modeling of the effects of these constraints on the components of the integrated circuits technology has been carried out in order to be able to take these effects into account from the design stage. Finally, these models were used to design an induction magnetometer readout circuit for space instrumentation
Varizat, Laurent. « Circuit de lecture d'un magnétomètre à induction pour l'étude de plasmas atmosphériques sur la mission JUICE ». Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066536/document.
Texte intégralInduction magnetometers are used in many fields of scientific exploration from geophysics to astrophysics. In these two fields, the study of the magnetic components of natural electromagnetic waves requires particularly powerful instruments: sensitive and with low intrinsic noises to access magnetic fields of some fT/ . In the case of scientific instruments carried on satellites, constraints on temperature, consumption, congestion and radiation resistance are added to the other constraints. Integrated circuit technologies allow technological breakthrough, which results in a reduction in the size of embedded electronic circuits by a factor greater than 1000, while improving electrical and instrumental performances (reduction in consumption, noise sources, bandwidth and hardening of the electronics). A first thesis at the L2E (A. Rhouni) showed the relevance of a CMOS technology for this type of instrumentation. In this thesis, we describe the study conducted on integrated circuits subject to environmental constraints related to the future missions in which this type of instrument must be embarked (Mission JUICE of ESA). These constraints are becoming more and more severe (radiation dose > 300krad, temperature less than 100 Kelvin ...), taking into account throughout the design process is necessary. A modeling of the effects of these constraints on the components of the integrated circuits technology has been carried out in order to be able to take these effects into account from the design stage. Finally, these models were used to design an induction magnetometer readout circuit for space instrumentation
Tizniti, Meryem. « Études de réactions d'intérêts atmosphérique et astrophysique à très basses températures ». Rennes 1, 2012. http://www.theses.fr/2012REN1S071.
Texte intégralIn the present work, we focused our attention on two reactions involving a radical and a molecule, both neutral species at low temperatures. These reactions have been studied with the CRESU (Cinétique de Réaction en Ecoulement Supersonique Uniforme) technique allowing the gas flow to be guided in order to create a supersonic flow at low temperature, associated with PLP-LIF (Pulsed Laser Photolysis- Laser Induced Fluorescence) technique in order to measure rate constants. The thermodynamical study of the OH + O2 = HO3 reaction gave us the possibility to estimate the dissociation energy of the HO3 radical in order to evaluate its capacity to trap OH radicals. Indeed, if HO3 possesses a high dissociation energy, it represents an eventual sink for OH radicals. Kinetics of this reaction has also been studied. The kinetics of the reaction F + H2 → HF + H have been studied for the first time at very low temperatures (down to 11 K). This reaction has a non-negligible energetic barrier (6 kJ. Mol-1) which indicates that if it occurs at low temperatures, it is mainly because of quantum effects. These quantum effects are due to the presence of hydrogen atoms which permits the crossing of the barrier by the tunnelling effect
Montandon, Véronique. « Un modèle neuronal pour la simulation opérationnelle des radiances observées par l'interféromètre spatial à haute résolution spectrale IASI ». Paris 6, 2002. http://www.theses.fr/2002PA066442.
Texte intégralDeremble, Bruno. « Dynamique atmosphérique basse fréquence : influence d'un front de température océanique ». Paris 6, 2010. http://www.theses.fr/2010PA066277.
Texte intégralIn a first part, we focus on the origin of the atmospheric low-frequency variability. We investigated the problem of defining unambiguously weather regimes. Indeed, while we might have a pretty good idea of the physical states associated with a particular weather regime, the edge of such a regime - and hence the transitions from one regime to another - is very poorly defined. In a quasi-geostrophic (QG), barotropic, highly truncated atmospheric model, we find that the stable manifolds associated with a saddle point are good candidates to be the boundaries between the regimes. In fact, our model is designed to reproduce the topographic instability that contributes to atmospheric LFV. In our model, we find a clear correspondence between the fixed points and the weather regimes. In a second part, we focus on the ocean-atmosphere interaction and its consequences on the atmospheric low-frequency variability. Recent high-resolution observations provide new insights into extratropical ocean atmosphere interactions. Particular attention has been devoted to measure the response of the atmosphere to zones of strong sea surface temperature (SST) grandients. Indeed, the marine atmospheric boundary layer above the ocean's mid-latitude currents (e. G. , the Gulf Stream) is largely influenced by the sharp SST fronts associated with them: these gradients produce significant changes of temperature and humidity fluxes in the lower layers of the atmosphere. In my thesis, I focus on the connection between the strong SST gradients and the atmospheric dynamics and more precisely on atmospheric low-frequency variability. In a first step, we quantify the modifications in the atmospheric dynamics due to the presence of the SST front (position and amplitude of the atmospheric jet; intensity of the storm track intensity). Then, using a simple parametrization of the boundary layer, we decribe the atmospheric dynamics using the equilibrium states of a barotropic coupled model. We use the limit cycle identified in this model to explain the basin-scale atmospheric low-frequency variability
Foletto, Marc. « Les micro-jets de plasma à pression atmosphérique et température ambiante ». Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30026/document.
Texte intégralMicroplasma jets propagating in a helium flow surrounded by air at ambient pressure and temperature have attracted the attention of many researchers over the past decade. These microplasma jets are ignited in a cylindrical dielectric barrier discharge (DBD) powered by impulse or sinusoidal voltage pulses with an amplitude of several kilovolts and then propagate as an ionization wave in the helium flow outside the DBD. The plasma so-generated is confined to the region where helium is the dominant species because ionization of the surrounding air requires a significantly higher electric field strength than is present at the ionization front in the plasma jet. The putative biomedical applications of microplasma jets are particularly promising because they provide a way of producing reactive oxygen and nitrogen species some centimeters downstream from the DBD without significant gas heating. The objective of the work reported in this thesis has been to develop a better understanding of the influence of the operating conditions and geometry on the properties of the plasma jets. To this end, experimental and numerical studies of the hydrodynamics of the helium flow and simulations of the generation and propagation of the microplasma jet have been carried out
Lesage, Sébastian. « Correction atmosphérique d'images hyperspectrales infrarouges et découplage émissivité-température de surface ». Toulouse, ISAE, 2010. http://www.theses.fr/2010ESAE0005.
Texte intégralAlbessard, Eric. « Etude de la structure et du métabolisme lipidique de l'euphausiacé Meganyctiphanes norvegica : influence d'un gradient tropho-climatique ». Lyon 1, 2003. http://www.theses.fr/2003LYO10045.
Texte intégralTandjigora, Diénaba. « Etude des phénomènes d’adsorption et de désorption du trans-resvératrol sur polymères : études en réacteur fermé et sur colonne à lit fixe ». Paris 6, 2013. http://www.theses.fr/2013PA066735.
Texte intégralResveratrol is a polyphenol produced by several plant species in response to a biotic or abiotic stress. This compound has been associated to the concept of French paradox, which reflects the reduction of heart diseases with red wine consumption. The resveratrol has several biological activities related to its antioxidant property. Because of this, the recovery of resveratrol from plant matrices is interesting, especially from wine which is an important dietary source. In this thesis, adsorption and desorption studies have been conducted on pure resveratrol solutions to evaluate the process feasibility. The results showed that polyamide 6. 6 has good adsorption capacity and allowed resveratrol recovery. Batch adsorption studies showed that the process follows an exothermic and physical multilayer adsorption. The solute is adsorbed via mono-sites and bi-sites hydrogen bonds. A desorption yield of 97% was obtained for 34 mL of a solvent containing 95% of ethanol at a temperature of 42°C. In addition, the process can be performed at room temperature and wine can be used without any further transformation. Finally, a preliminary study suggested an effective adsorption and rapid desorption using a fixed-bed column. The development of this technique will require further investigations
Livres sur le sujet "Températures atmosphériques"
Gullett, D. W. L' état du climat au Canada : Les variations de la température au Canada, 1895-1991. Ottawa, Ont : Service de l'environnement atmosphérique, Environnement Canada, 1992.
Trouver le texte intégralAnson, Mackay, dir. Global change in the holocene. London : Hodder Arnold, 2005.
Trouver le texte intégralCanada, Canada Environnement, dir. Une question de degrés : L'abc du changement climatique. Ottawa, Ont : Environnement Canada, 1997.
Trouver le texte intégralPeter, Stokoe, et Canada Atmospheric Environment Service, dir. Implications of climate change for small coastal communities in Atlantic Canada. [Ottawa] : Environment Canada, 1990.
Trouver le texte intégralPeter, Stokoe, Canada Atmospheric Environment Service, Canada. Service de l'environnement atmosphérique., Canada Environment Canada et Canada Environnement Canada, dir. Implications of climate change for small coastal communities in Atlantic Canada = : Répercussions du changement de climat sur les petites localités côtières de la région de l'Atlantique au Canada. Ottawa, Ont : Environment Canada = Environnement Canada, 1990.
Trouver le texte intégralService, Canada Atmospheric Environment. Understanding CO2 and climate : annual report 1984 = : Comprendre le CO2 et le climat : rapport annuel 1984. Ottawa, Ont : Environment Canada = Environnement Canada, 1985.
Trouver le texte intégralW, Ginsberg Irving, Angelo Joseph A, United States. National Aeronautics and Space Administration., United States. National Oceanic and Atmospheric Administration. et Environmental Research Institute of Michigan., dir. Earth observations and global change decision making, 1990 : A national partnership. Malabar, Fla : Krieger Pub. Co., 1991.
Trouver le texte intégralAlexandre, Magnan, et Tubiana Laurence, dir. Anticiper pour s'adapter : Le nouvel enjeu du changement climatique. Paris : Pearson, 2010.
Trouver le texte intégralImogen, Jubb, Holper Paul 1957- et Cai Wenju, dir. Managing climate change : Papers from the Greenhouse 2009 conference. Collingwood, Vic : CSIRO Pub., 2010.
Trouver le texte intégralCanada. External Affairs and International Trade Canada. Environment : agreement establishing the Inter-American Institute for Global Change Research Montevideo, May 13, 1992 signed by Canada March 25, 1993, Canadian Notification deposited June 15, 1993 in force for Canada March 12, 1994 = : Environnement : accord relatif à la création d'un institut interaméricain de recherches sur les changements à l'échelle du globe, Montevideao, le 13 mai 1992 signé par le Canada le 25 mars 1993 notification du Canada déposée le 15 juin 1993 en vigueur pour le Canada le 12 mars 1994. Ottawa, Ont : Queen's Printer for Canada = Imprimeur de la Reine pour le Canada, 1995.
Trouver le texte intégralChapitres de livres sur le sujet "Températures atmosphériques"
« Pollution atmosphérique et températures extrêmes ». Dans Panorama de la santé 2019, 102–3. OECD, 2019. http://dx.doi.org/10.1787/e3a77968-fr.
Texte intégral