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Book Application Des a G Pour Le Calage D un Modele Hydrologique Coupl

Download or read book Application Des a G Pour Le Calage D un Modele Hydrologique Coupl written by Rim Cherif and published by Omniscriptum. This book was released on 2010-12 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: G n ralement l'infiltartion et le ruissellement de surface sont med lis es s par ment.Dans ce document il s'agit de d velopper un mod le coupl , ce modele fait intervenir la m thode de GREEN et Ampt pour la determination de l'infiltration. il comporte deux reservoir un repr sentant la couche en surface du sol et le dexieme repr sentant le sol. L'optimisation de ses parametres est r alis e par deux m thodes'simplex' et les algorithmes g n tiques. des experiences sont r alis es au laboratoire pour constituer les dn es de calage de ce mod le.

Book Handbook of HydroInformatics

Download or read book Handbook of HydroInformatics written by Saeid Eslamian and published by Elsevier. This book was released on 2022-12-06 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Machine Learning Techniques includes the theoretical foundations of modern machine learning, as well as advanced methods and frameworks used in modern machine learning. Handbook of HydroInformatics, Volume II: Advanced Machine Learning Techniques presents both the art of designing good learning algorithms, as well as the science of analyzing an algorithm's computational and statistical properties and performance guarantees. The global contributors cover theoretical foundational topics such as computational and statistical convergence rates, minimax estimation, and concentration of measure as well as advanced machine learning methods, such as nonparametric density estimation, nonparametric regression, and Bayesian estimation; additionally, advanced frameworks such as privacy, causality, and stochastic learning algorithms are also included. Lastly, the volume presents Cloud and Cluster Computing, Data Fusion Techniques, Empirical Orthogonal Functions and Teleconnection, Internet of Things, Kernel-Based Modeling, Large Eddy Simulation, Patter Recognition, Uncertainty-Based Resiliency Evaluation, and Volume-Based Inverse Mode. This is an interdisciplinary book, and the audience includes postgraduates and early-career researchers interested in: Computer Science, Mathematical Science, Applied Science, Earth and Geoscience, Geography, Civil Engineering, Engineering, Water Science, Atmospheric Science, Social Science, Environment Science, Natural Resources, Chemical Engineering. Key insights from 24 contributors in the fields of data management research, climate change and resilience, insufficient data problem, etc. Offers applied examples and case studies in each chapter, providing the reader with real world scenarios for comparison. Defines both the designing of good learning algorithms, as well as the science of analyzing an algorithm's computational and statistical properties and performance guarantees.

Book Param  trisation de la dynamique lacustre dans un mod  le de surface coupl   pour une application    la pr  vision hydrologique    l   chelle globale

Download or read book Param trisation de la dynamique lacustre dans un mod le de surface coupl pour une application la pr vision hydrologique l chelle globale written by Thibault Guinaldo (docteur en hydrologie).) and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'hydrologie continentale s'intéresse à tous les aspects du cycle de l'eau des terres émergées et représente les flux de masse d'eau qui sont échangées. Que ce soit dans le sous-sol, au sein des lacs ou dans le brassage continu des torrents, l'eau et les processus hydrologiques associés entretiennent un lien direct avec la dynamique atmosphérique et la variabilité climatique. La représentation, à l'échelle globale, de ces processus hydrologiques s'appuie sur des techniques de modélisation qui, au CNRM, passent par un système couplé composé du modèle de surface ISBA et du modèle de routage en rivière CTRIP. Ces dernières années, les progrès réalisés sur les paramétrisations existantes et la représentation des nouveaux processus dans ISBA comme dans CTRIP ont abouti à une nette amélioration des performances de ce système pour des applications hydrologiques régionales ou globales couplées avec un modèle de climat. Dans la continuité de ces efforts, l'objectif principal de cette thèse est de développer une paramétrisation dynamique des lacs pour intégrer leur bilan de masse dans le modèle global CTRIP à 1/12°. Par ailleurs, le modèle développé, MLake, propose un diagnostic sur le marnage des lacs afin de permettre le suivi du niveau d'eau basé sur des mesures satellitaires. Bénéficiant d'un réseau de mesures dense et de forçages climatiques à haute résolution, le bassin versant du Rhône a été choisi pour évaluer localement MLake sur la période 1960-2016. Les résultats sur trois stations de jaugeages montrent une progression nette des performances de CTRIP dans la simulation des débits du Rhône aboutissant à un lissage des hydrographes qui se caractérise par un écrêtement des débits de crues et un soutien à l'étiage. Par ailleurs, la confrontation du diagnostic sur les niveaux d'eau du Léman avec des mesures locales révèle une capacité du modèle à suivre les cycle annuels et inter-annuels du marnage. Une deuxième évaluation s'est ensuite portée à l'échelle globale pour confirmer le comportement du modèle dans des conditions hydroclimatiques contrastées. Cette évaluation confirme la capacité du modèle à simuler des débits réalistes mais révèle la perturbation importante du cycle hydrologique naturel par l'anthropisation. Enfin les résultats préliminaires d'une simulation globale démontre l'intérêt d'utiliser MLake avec une amélioration systématique des scores dans les zones de grande densité lacustre. Ainsi, 45% des stations évaluées, principalement dans les régions arctiques, présentent une amélioration des scores statistiques. Enfin, cette étude engage une réflexion sur les perspectives d'améliorations du modèle, notamment la mise en place d'une bathymétrie de lac à l'échelle globale, en vue d'un couplage avec un modèle de climat et de l'utilisation des données de la future mission spatiale SWOT.

Book Aide    la calibration d un mod  le hydrologique distribu   au moyen d une analyse des processus hydrologiques

Download or read book Aide la calibration d un mod le hydrologique distribu au moyen d une analyse des processus hydrologiques written by Raouf Gnouma and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail de thèse s'inscrit dans le contexte des recherches actuelles en hydrologie consacrées à l'amélioration des performances des modèles hydrologiques à l'aide des connaissances acquises par l'approche expérimentale. Le bassin versant de l'Yzeron (A=147,3 km2), situé à l'Ouest de l'agglomération lyonnaise, constitue le terrain d'étude. Après un état de l'art concernant les processus hydrologiques de génèse des écoulements et la modélisation hydrologique distribuée, le modèle WISTOO a été implémenté sur le bassin de l'Yzeron. Ce premier travail de modélisation a soulevé les différents problèmes, déjà évoqués dans la littérature, d'une modélisation hydrologique distribuée. Il a montré qu'une connaissance sur le comportement hydrologique de la région d'étude est nécessaire. Dans la deuxième partie de ce travail et à l'aide d'une analyse spatiale, utilisant les différentes couches thématiques disponibles, trois sous-bassins versants supposés représentatifs de caractéristiques dominantes liées aux écoulements ont été sélectionnés. Ensuite, une approche expérimentale a été menée, sur ces entités spatiales, à deux échelles : celle du sous-bassin versant (analyse pluie-débit et traçage géochimique) et celle du versant (suivi du niveau piézométrique). L'application du traçage géochimique a permis d'émettre des hypothèses sur le comportement hydrologique de ces entités. Pour une approche à plus petite échelle, une série de piézomètres a été installée sur deux versants ce qui a permis un suivi temporel du niveau piézométrique lors de quelques événements averse-crue. L'association des deux techniques (traçage géochimique et suivi à l'échelle du versant) ainsi que les analyses pluie-débit globales nous ont permis d'apporter quelques éléments de compréhension sur les processus hydrologiques dominants associés aux bassins représentatifs du bassin de l'Yzeron. Une première tentative d'intégration de cette connaissance dans le calage du modèle distribué constitue le dernier chapitre de la thèse

Book Groundwater Modelling in Arid and Semi Arid Areas

Download or read book Groundwater Modelling in Arid and Semi Arid Areas written by Howard S. Wheater and published by Cambridge University Press. This book was released on 2010-09-09 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Arid and semi-arid regions face major challenges in the management of scarce freshwater resources under pressures of population, economic development, climate change, pollution and over-abstraction. Groundwater is commonly the most important water resource in these areas. Groundwater models are widely used globally to understand groundwater systems and to guide decisions on management. However, the hydrology of arid and semi-arid areas is very different from that of humid regions, and there is little guidance on the special challenges of groundwater modelling for these areas. This book brings together the experience of internationally leading experts to fill a gap in the scientific and technical literature. It introduces state-of-the-art methods for modelling groundwater resources, illustrated with a wide-ranging set of illustrative examples from around the world. The book is valuable for researchers, practitioners in developed and developing countries, and graduate students in hydrology, hydrogeology, water resources management, environmental engineering and geography.

Book Advances in Hydroinformatics

Download or read book Advances in Hydroinformatics written by Philippe Gourbesville and published by Springer. This book was released on 2018-02-26 with total page 1205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers a collection of extended papers based on presentations given during the SimHydro 2017 conference, held in Sophia Antipolis, Nice, France on June 14–16, 2017. It focuses on how to choose the right model in applied hydraulics and considers various aspects, including the modeling and simulation of fast hydraulic transients, 3D modeling, uncertainties and multiphase flows. The book explores both limitations and performance of current models and presents the latest developments in new numerical schemes, high-performance computing, multiphysics and multiscale methods, and better interaction with field or scale model data. It gathers the lastest theoretical and innovative developments in the modeling field and presents some of the most advance applications on various water related topics like uncertainties, flood simulation and complex hydraulic applications. Given its breadth of coverage, it addresses the needs and interests of practitioners, stakeholders, researchers and engineers alike.

Book Dictionary of Building and Civil Engineering

Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Book Climate Variability and Change

Download or read book Climate Variability and Change written by Flow Regimes from International Experimental and Network Data (Project) and published by . This book was released on 2006 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains 117 reviewed papers from over 30 countries, published in English, French and Spanish, which reflect both international dimension of FRIEND and the key challenges facing hydrologists in the 21st century.

Book Hydrology of Mediterranean and Semiarid Regions

Download or read book Hydrology of Mediterranean and Semiarid Regions written by Eric Servat and published by . This book was released on 2003 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Large Sample Basin Experiments for Hydrological Model Parameterization

Download or read book Large Sample Basin Experiments for Hydrological Model Parameterization written by Vazgēn Andrēasean and published by International Assn of Hydrological Sciences. This book was released on 2006-01-01 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Flood frequency Analyses

Download or read book Flood frequency Analyses written by Tate Dalrymple and published by . This book was released on 1960 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Drought  Research and Science Policy Interfacing

Download or read book Drought Research and Science Policy Interfacing written by Joaquin Andreu and published by CRC Press. This book was released on 2015-02-12 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Droughts occur in arid and semi-arid areas of the world, but also in humid areas, and can develop over short periods (flash drought) or longer periods (seasons/decades). Even though progress has been made, it remains difficult to adequately characterize, monitor, forecast and manage droughts, due to their multi-faceted nature.Usually, drought does

Book Discharge of Selected Rivers of the World

Download or read book Discharge of Selected Rivers of the World written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Stochastic Processes in Hydrology

Download or read book Stochastic Processes in Hydrology written by Vujica M. Yevjevich and published by . This book was released on with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Impacts of Climate Change and Climate Variability on Hydrological Regimes

Download or read book Impacts of Climate Change and Climate Variability on Hydrological Regimes written by Jan C. van Dam and published by Cambridge University Press. This book was released on 2003-10-16 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the implications of possible climate changes and variability on both global and regional water resources.

Book Streamflow Generation Processes

Download or read book Streamflow Generation Processes written by K. J. Beven and published by . This book was released on 2006 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is the first in the Benchmark Papers in Hydrology series. Each volume tackles a specific topic and is edited by a recognised scientific authority. The volume editor selects and provides an introduction to, and a commentary on, the papers that are reproduced in that volume. Thirty-one papers spanning the period 1933 - 1984, commencing with Horton's earliest on infiltration in the hydrological cycle, are reproduced in this book.

Book The Use of Analog and Digital Computers in Hydrology  Proceedings of the Tucson Symposium

Download or read book The Use of Analog and Digital Computers in Hydrology Proceedings of the Tucson Symposium written by tucson Symposium on the use of analog and digital computers in hydrology and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: