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Effective Parameters of Hydrogeological Models

Effective Parameters of Hydrogeological Models PDF Author: Vikenti Gorokhovski
Publisher: Springer Science & Business Media
ISBN: 3642237223
Category : Science
Languages : en
Pages : 158

Book Description
Models of geological objects are tools for interpolation and extrapolation of available data in space and time continuously. Real structures of the objects are unknown, and their models and simulated results carry uncertainty which cannot be evaluated in a provable way. The real issue is obtaining effective predictions in a reasonably defined sense. This requires a knowledge of mechanisms that convert actual geological properties into effective model parameters. These mechanisms are introduced in the book. They reveal that effective parameters are not statistics but characteristics optimizing the system made up by geological surroundings, their models, predictive problem formulations, including mathematical models of the simulated processes, boundary conditions, monitoring networks, criteria of efficiency and even by time. Examples of evaluating and applying transformation for assigning effective parameters and solving inverse problems are presented.

Effective Parameters of Hydrogeological Models

Effective Parameters of Hydrogeological Models PDF Author: Vikenti Gorokhovski
Publisher: Springer Science & Business Media
ISBN: 3642237223
Category : Science
Languages : en
Pages : 158

Book Description
Models of geological objects are tools for interpolation and extrapolation of available data in space and time continuously. Real structures of the objects are unknown, and their models and simulated results carry uncertainty which cannot be evaluated in a provable way. The real issue is obtaining effective predictions in a reasonably defined sense. This requires a knowledge of mechanisms that convert actual geological properties into effective model parameters. These mechanisms are introduced in the book. They reveal that effective parameters are not statistics but characteristics optimizing the system made up by geological surroundings, their models, predictive problem formulations, including mathematical models of the simulated processes, boundary conditions, monitoring networks, criteria of efficiency and even by time. Examples of evaluating and applying transformation for assigning effective parameters and solving inverse problems are presented.

Hydrological Modelling in Arid and Semi-Arid Areas

Hydrological Modelling in Arid and Semi-Arid Areas PDF Author: Howard Wheater
Publisher: Cambridge University Press
ISBN: 1139468081
Category : Science
Languages : en
Pages : 222

Book Description
Arid and semi-arid regions are defined as areas where water is at its most scarce. The hydrological regime in these areas is extreme and highly variable, and they face great pressures to deliver and manage freshwater resources. However, there is no guidance on the decision support tools that are needed to underpin flood and water resource management in arid areas. UNESCO initiated the Global network for Water and Development Information for arid lands (GWADI), and arranged a workshop of the world's leading experts to discuss these issues. This book presents chapters from contributors to the workshop, and includes case studies from the world's major arid regions to demonstrate model applications, and web links to tutorials and state-of-the-art modelling software. This volume is a valuable reference for researchers and engineers working on the water resources of arid and semi-arid regions.

Manual on Low-flow Estimation and Prediction

Manual on Low-flow Estimation and Prediction PDF Author:
Publisher:
ISBN: 9789263110299
Category : Hydrological forecasting
Languages : en
Pages : 136

Book Description
This manual's objective is to publish state-of-the-art analytical procedures for estimating and predicting low river flows at all sites, regardless of the availability of observational data. The manual will be useful for applications such as water resources planning, effluent dilution estimates and water resources management during low-flow conditions.--Publisher's description.

Distributed Hydrological Modelling

Distributed Hydrological Modelling PDF Author: Michael B. Abbott
Publisher: Springer Science & Business Media
ISBN: 9400902573
Category : Science
Languages : en
Pages : 323

Book Description
It is the task of the engineer, as of any other professional person, to do everything that is reasonably possible to analyse the difficulties with which his or her client is confronted, and on this basis to design solutions and implement these in practice. The distributed hydrological model is, correspondingly, the means for doing everything that is reasonably possible - of mobilising as much data and testing it with as much knowledge as is economically feasible - for the purpose of analysing problems and of designing and implementing remedial measures in the case of difficulties arising within the hydrological cycle. Thus the aim of distributed hydrologic modelling is to make the fullest use of cartographic data, of geological data, of satellite data, of stream discharge measurements, of borehole data, of observations of crops and other vegetation, of historical records of floods and droughts, and indeed of everything else that has ever been recorded or remembered, and then to apply to this everything that is known about meteorology, plant physiology, soil physics, hydrogeology, sediment transport and everything else that is relevant within this context. Of course, no matter how much data we have and no matter how much we know, it will never be enough to treat some problems and some situations, but still we can aim in this way to do the best that we possibly can.

Soil-vegetation-atmosphere Transfer Schemes and Large-scale Hydrological Models

Soil-vegetation-atmosphere Transfer Schemes and Large-scale Hydrological Models PDF Author: A. J. Dolman
Publisher:
ISBN: 9781901502619
Category : Climatic changes
Languages : en
Pages : 392

Book Description


Effective Parameters of Hydrogeological Models

Effective Parameters of Hydrogeological Models PDF Author: Vikenti Gorokhovski
Publisher: Springer Science & Business Media
ISBN: 331903569X
Category : Science
Languages : en
Pages : 199

Book Description
Geological models used in predictive hydrogeological modeling are not exact replicas of the objects they represent: many details related to structures and properties of the objects remain unknown. Those details may considerably affect simulation results. A provable evaluation of the uncertainty of hydrogeological and solute transport simulations are almost impossible. In this book the author describes how to obtain the best-possible results in simulations, based on the available data and predefined criteria that are turned into transforming mechanisms. The latter are mathematical expressions for evaluating model parameters supporting effective simulations. Examples of the mechanisms as well as methods of their evaluation are provided in this book. It is also shown how these mechanisms can be used for the interpretation of hydrogeological data. The first edition of this book was published in the series Springer Briefs in Earth Sciences.

Rainfall-Runoff Modelling

Rainfall-Runoff Modelling PDF Author: Keith J. Beven
Publisher: John Wiley & Sons
ISBN: 047071459X
Category : Technology & Engineering
Languages : en
Pages : 489

Book Description
Rainfall-Runoff Modelling: The Primer, Second Edition is the follow-up of this popular and authoritative text, first published in 2001. The book provides both a primer for the novice and detailed descriptions of techniques for more advanced practitioners, covering rainfall-runoff models and their practical applications. This new edition extends these aims to include additional chapters dealing with prediction in ungauged basins, predicting residence time distributions, predicting the impacts of change and the next generation of hydrological models. Giving a comprehensive summary of available techniques based on established practices and recent research the book offers a thorough and accessible overview of the area. Rainfall-Runoff Modelling: The Primer Second Edition focuses on predicting hydrographs using models based on data and on representations of hydrological process. Dealing with the history of the development of rainfall-runoff models, uncertainty in mode predictions, good and bad practice and ending with a look at how to predict future catchment hydrological responses this book provides an essential underpinning of rainfall-runoff modelling topics. Fully revised and updated version of this highly popular text Suitable for both novices in the area and for more advanced users and developers Written by a leading expert in the field Guide to internet sources for rainfall-runoff modelling software

Calibration and Reliability in Groundwater Modelling

Calibration and Reliability in Groundwater Modelling PDF Author: Karel Kovar
Publisher: IAHS Press
ISBN: 9780947571948
Category : Groundwater
Languages : en
Pages : 622

Book Description


Dynamics of Multiscale Earth Systems

Dynamics of Multiscale Earth Systems PDF Author: Horst J. Neugebauer
Publisher: Springer
ISBN: 3540452567
Category : Science
Languages : en
Pages : 353

Book Description
In many aspects science becomes conducted nowadays through technology and preferential criteria of economy. Thus investigation and knowledge is evidently linked to a speci?c purpose. Especially Earth science is confronted with two major human perspectives concerning our natural environment:sustainability of resources and assessment of risks. Both aspects are expressing urgent needs of the living society, but in the same way those needs are addressing a long lasting fundamental challenge which has so far not been met. Following on the patterns of economy and technology, the key is presumed to be found through a devel- mentoffeasibleconceptsforamanagement ofbothournaturalenvironmentand in one or the other way the realm of life. Although new techniques for obser- tion and analysis led to an increase of rather speci?c knowledge about particular phenomena, yet we fail now even more frequently to avoid unforeseen impli- tions and sudden changes of a situation. Obviously the improved technological tools and the assigned expectations on a management of nature still exceed our traditional scienti?c experience and accumulated competence. Earth- and Life- Sciences are nowadays exceedingly faced with the puzzling nature of an almost boundless network of relations, i. e. , the complexity of phenomena with respect to their variability. The disciplinary notations and their particular approaches arethusnolongeraccountingsu?cientlyfortherecordedcontextofphenomena, for their permanent variability and their unpredictable implications. The large environmental changes of glacial climatic cycles, for instance, demonstrate this complexity of such a typical phenomenology.

Modelling of Hydrological Processes in the Narew Catchment

Modelling of Hydrological Processes in the Narew Catchment PDF Author: Dorota Świątek
Publisher: Springer Science & Business Media
ISBN: 3642190596
Category : Science
Languages : en
Pages : 146

Book Description
Since climate and land use strongly affect the runoff pattern and intensity of solute export, it is likely that some observations and conclusions formulated on the basis of investigations carried out in forested catchment may not be fully adequate to describe controls on solute export from agricultural watersheds. The primary objective of the present research is to better understand the flow paths that affect the fluxes of dissolved compounds from a small agricultural catchment during snowmelt. This book focuses on spring snowmelt, because this is the dominant hydrological event in many moderate and high latitude catchments and, thus, is regarded as a prominent factor influencing the quality of surface waters