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Artykuły w czasopismach na temat "Modélisation de l'intensité des précipitations"
Guillobez, Serge. "Réflexions théoriques du ruissellement et de l'érosion. Bases d'un contrôle. Application à la détermination des écartements entre dispositifs anti-érosifs". BOIS & FORETS DES TROPIQUES 226 (1.12.1990): 37–47. https://doi.org/10.19182/bft1990.226.a19654.
Pełny tekst źródłaRamiandra, Clarc Aina, Jacques Raphaelson RANDRIANANDRASARVO, Jean HARY i Djaffard MAXWELL. "Analyse Des Fortes Précipitations Et De Leur Evolution Future Dans La Partie Nord De Madagascar". International Journal of Progressive Sciences and Technologies 46, nr 2 (26.09.2024): 260. https://doi.org/10.52155/ijpsat.v46.2.6575.
Pełny tekst źródłaSt-Hilaire, A., T. B. M. J. Ouarda, M. Lachance, B. Bobée, M. Barbet i P. Bruneau. "La régionalisation des précipitations : une revue bibliographique des développements récents". Revue des sciences de l'eau 16, nr 1 (12.04.2005): 27–54. http://dx.doi.org/10.7202/705497ar.
Pełny tekst źródłaFernández García, Felipe. "La influencia de la ciudad sobre las precipitaciones: El caso de Madrid." Estudios Geográficos 51, nr 199-200 (30.09.1990): 397–411. http://dx.doi.org/10.3989/egeogr.1990.i199-200.397.
Pełny tekst źródłaZahar, Yadh, i Jean-Pierre Laborde. "Modélisation statistique et synthèse cartographique des précipitations journalières extrêmes de Tunisie". Revue des sciences de l'eau 20, nr 4 (21.01.2008): 409–24. http://dx.doi.org/10.7202/016914ar.
Pełny tekst źródłaAdorni-Braccesi, A., M. Acutis, S. Merlo i G. M. Zuppi. "Application des techniques physiques, géochimiques et isotopiques pour l'évaluation de l'infiltration sous climat tempéré". Revue des sciences de l'eau 14, nr 3 (12.04.2005): 243–63. http://dx.doi.org/10.7202/705419ar.
Pełny tekst źródłaJimenez, C., W. Hipel i A. McLeod. "Développements récents dans la modélisation de la persistance à long terme". Revue des sciences de l'eau 3, nr 1 (12.04.2005): 55–81. http://dx.doi.org/10.7202/705065ar.
Pełny tekst źródłaMathier, L., i A. G. Roy. "Hydrogrammes de ruissellement superficiel et transport des sédiments en milieu agricole". Revue des sciences de l'eau 5, nr 1 (12.04.2005): 1–21. http://dx.doi.org/10.7202/705117ar.
Pełny tekst źródłaGalbraith, John W. "Les progrès dans les prévisions : météorologie et économique". Articles 81, nr 4 (12.04.2007): 559–93. http://dx.doi.org/10.7202/014910ar.
Pełny tekst źródłaHoang, Cong-Tuan, Iouli Tchiguirinskaia, Daniel Schertzer i Shaun Lovejoy. "Caractéristiques multifractales et extrêmes de la précipitation à haute résolution, application à la détection du changement climatique". Revue des sciences de l’eau 27, nr 3 (15.12.2014): 205–16. http://dx.doi.org/10.7202/1027806ar.
Pełny tekst źródłaRozprawy doktorskie na temat "Modélisation de l'intensité des précipitations"
Lamy, Chloé. "Impact du changement climatique sur la fréquence et l'intensité des sécheresses en Bretagne". Phd thesis, Université Rennes 2, 2013. http://tel.archives-ouvertes.fr/tel-01059818.
Pełny tekst źródłaMartini, Tommaso. "statistical and probabilistic approaches to hydrological data analysis : rainfall patterns, copula-like models and first passage timeapproximations". Electronic Thesis or Diss., Pau, 2024. http://www.theses.fr/2024PAUU3051.
Pełny tekst źródłaAnalysis of rainfall data and subsequent modeling of the many variables concerning rainfall is fundamental to many areas such as agricultural, ecological and engineering disciplines and, due to the complexity of the underlying hydrological system, it relies heavily on historical records. Daily rainfall series obtained from rain gauge networks are arguably the most used. A reliable and flexible single site model is the fundamental starting point of any more complex multi-site model taking into account the spatial correlations arising when observing a dense network of stations. Given the ever-growing interest in analysing the alternance between period of continuous rainfall and periods of drought, two-part discrete time models accounting separately for rainfall occurrence and rainfall amount processes are an useful tool to describe the behaviour of daily rainfall at a single station. In this context, we initially investigate the modeling of daily rainfall interarrival times through a family of discrete probability distributions known as the Hurwitz-Lerch-Zeta family, along with two other distributions which are deeply related to the latter and have never been considered with this aim. Building up on the relationships between the interarrival times and certain other temporal variables, a methodology for their modeling and empirical analysis is detailed. The latter procedure and the fitting performance of the aforementioned distributions is shown on a dataset composed of a variety of rainfall regimes.Moreover, being able to provide reliable modeling of rainfall related variables is essential in the well known issue of climate change. A starting point in detecting change is the multivariate modeling of rainfall variables, as a perceivable shift in the inter-relationships between these could reflect climate changes in a region. In this context, copulas are well known and valued for their flexibility. However, they lose their charm when dealing with discrete random vectors. In this case, the uniqueness of the copula is compromised, leading to inconsistencies which basically break down the theoretical underpinnings of the inferential procedures commonly used in the continuous case. Recently, Gery Geenens made a compelling case for a new approach, grounding its beliefs in historical ideas regarding the statistical analysis of contingency tables. The theoretical insights he gives, coupled with a computational tool known as iterative proportional fitting procedure, open up the path to our development of novel (semi-parametric or parametric) models for finitely supported bivariate discrete random vectors. With this aim, we prove a sklar-like decomposition of a bivariate discrete probability mass function between its margins and a copula probability mass function, on which the previously mentioned models hinge upon. Related inferential and goodness of fit procedures are investigated, both theoretically and empirically.Of the same significance as modeling the behavior of rainfall is its impact on water bodies and land surfaces. For istance, understanding the time it takes for rainfall to cause river levels to exceed a flood stage is of paramount importance for flood prediction and management. More in general, it is often crucial to determine the time at which certain hydrological thresholds are crossed by some hydrological quantity. When the latter's value in time is modelled by a stochastic process, the problem mentioned above can be restated in terms of the well known first passage time problem. In this context, a practical closed form computation of the first passage time probability density and distribution function is a delicate issue. Regarding this, we propose an approximation method based on a series expansion. Theoretical results are accompanied by discussions on the computational aspects. Extensive numerical experiments are carried out for the geometric Brownian motion and the Cox-Ingersoll-Ross process
Gueye, Abdou Karim. "Modélisation statistique des précipitations quotidiennes au Sénégal". Paris 6, 2010. http://www.theses.fr/2010PA066439.
Pełny tekst źródłaLe, Cam Vaissade Marie-Noëlle. "Modélisation diagnostique des précipitations : formation des précipitations dans la partie convective d'une ligne de grains tropicale". Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF21087.
Pełny tekst źródłaLe, Bris Stéphanie. "Le réentraînement à l'effort des patients coronariens : étude de l'intensité et modélisation". Montpellier 1, 2004. http://www.theses.fr/2004MON14004.
Pełny tekst źródłaYahyaoui, Abdelaziz. "Variabilité spatiale et modélisation statistique des précipitations du Maroc cisatlasique et transatlantique". Nice, 1996. http://www.theses.fr/1996NICE2034.
Pełny tekst źródłaThe title given to the whole work is spatial variability and statistical modelisation of rains in cisatlasic and transatlantic Morocco it is based on the data given by 16 stations from 1958 to 1987. Four different parts will be developped : - The first deals with the area which will be studied, the meteorological context, the problems raised and data used in the work. -The second part deals which the annual data after criticizing the series using the doublesmass, principal components and regression residues methods. The lacks in the data were filled by the regional vectors method. The second subdivision of this part is a statistical modelisation of the annual series by the law of Gauss which seems appropriate to explain the annual distribution over the different Moroccan stations. When the average of the annual rains is low, the distribution is normal-root. The principal components exhibits sets of stations characterised by coherent time and spatial variations. - The third deals with the monthly rains. A statistical approach of the quantity of rain higher than o,1 mn by the fuller law and also the study of the average, regimes and gradex. - The fourth part deals with the study of the daily rains approched by the fuller law (montly maxima) and the gumbel's law for the annual maxima the final results are shown in the general conclusion. The illustration is composed of : 12 maps, 98 bibliographical references, 33 drawings, 8 tables and 10 riders
Sebille, Quentin. "Modélisation spatiale de valeurs extrêmes : application à l'étude de précipitations en France". Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1244/document.
Pełny tekst źródłaExtreme precipitation in France are responsible for flooding events that cause people's deaths and billions of euros in material damage. Measuring the risk associated to these rare meteorological events is possible thanks to the extreme value theory which allows the estimation of such catastrophic scenarios. This thesis focus on three risk measures involving joint probabilities and spatial prediction methods related to geostatistics.In a first time, several spatial models for extreme values built on annual maxima are evaluated in a comparative study in the form of an article. This comparison is performed using simulated data from real annual maxima of precipitation in France. It is also based on two criteria linked to risk measures: the hundred years return level and the extremal coefficient. One particular model is presented in details: the one of Reich and Shaby (2012). This model is implemented under a R package entirely dedicated to its estimation and simulation procedures.In a second time, exceedances of spatial daily data are modelled in order to estimate a conditional failure probability. Several estimators of this measure are proposed, based on the one hand on parametric methods involving Pareto processes and on the other hand on non parametric approaches. The temporal dependence in extremes is also considered with care when estimating this probability.Along this thesis, the methods are applied on daily data of precipitation in France
Hammami, Ramzi. "Modélisation par des processus stochastiques de l'intensité et du spectre des atomes dans un plasma". Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4711/document.
Pełny tekst źródłaThe study of radiative properties of the plasmas (spectra and line intensities) is an important tool for achieving the diagnostic of plasmas. This thesis analyses diagnostic modeling using a stochastic approach. The method consists in modeling a fluctuating plasma parameter by a stepwise constant evolution separated by instantaneous jumps. The plasma parameter is sampled according to a probability density function (PDF), and its evolution is governed by a waiting time (WTD) which is related to the autocorrelation function of the considered plasma parameter. After presenting the theoretical foundations of our stochastic model, we are interested in a second part to the application of the latter for the kinetics of atomic populations in a turbulent plasma and to the Stark broadening of hydrogen line shapes. We apply our model to study the effect of temperature fluctuations on the ion abundances of carbon in conditions that may be encountered in thermonuclear fusion machines (tokamaks) and to a simplified atomic system of Balmer lines, with the aim of preparing a turbulence diagnostic based on line ratios. Our results and show that retaining fluctuations modifies the atomic populations of the system studied.We focus our interest on Stark profiles in a plasma assumed to be in thermodynamic equilibrium for our second application. In this case, it is the electric plasma microfield which is modeled by a stochastic process. The distinctive feature of this study is that it explores, for temperatures of the order of the eV, the intermediate regime between the static approximation at high density, and the impact approximation at low density
Lepioufle, Jean-Marie. "Modélisation spatio-temporelle d'un champ de pluie : application aux pluies journalières du bassin versant de la Loire". Grenoble INPG, 2009. http://www.theses.fr/2009INPG0109.
Pełny tekst źródłaIn spite of the sparse measurement informations, rainfall fields can be modelled as a space-time intermittent process : superimposition of inner variability field and rainfall indicator field, both influenced by advection. Geostatistics permits to link the space-time structure and the evolution of statistical characteristics with temporal support size. This work proposes a space-time modelisation of an effective rainfall field based on significant statistical characteristics in the point of view of hydrology : mathematical expectation and variance of rainfall for different duration. An implementation is done from daily rainfall over the Loire basin in order to provide realistic rainfall events with a duratioin of one day to 10 days
Hammouda, Ali. "Connaissance et modélisation des précipitations pour l'hydrologie urbaine à travers l'exemple de l'agglomération nancéienne". Lille 1, 1995. http://www.theses.fr/1995LIL10111.
Pełny tekst źródłaThne first part of this study is devoted to charcterization of local pluviometry in urban area. We have suggested a methodology based on a definition of the shower which takes into account the spatial development of rain to characterize the maximal average intensity, and we have carried out a classification of the rainy events registered on nancy urban area according to the most significant pluviometric characteristics in relation to the objectives which are pursued. The second part is devoted to the passage of punctual rain to the average aerial rainfall. The interpolation of rainfall fields is carried aout from two different approaches : the kriging, and the research of epicentre. We have determined each time the limits of application and the errors of reckoning of these interpolation techniques when used for the calculation of rainfall fields. The third part is devoted to a study of the potential use of radar rainfall measurment of nancy associated to the network of rain gauges in the urban area. A comparison between the data of the radar an the rain gauges is made. The amphasis is laid on the coherence between the spatial structure of rainfall which is observed by the radar and the one which is given by rain gauges. A tool of visualization of radar pictures is elaborated
Części książek na temat "Modélisation de l'intensité des précipitations"
RAMON-TARRAGONA, Anna, i Eduardo E. ALONSO. "Les précipitations minérales à grande échelle et leurs effets sur les infrastructures". W Cristallisation de sels en milieu poreux, 147–80. ISTE Group, 2023. http://dx.doi.org/10.51926/iste.9114.ch6.
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