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Author: Lili Yu Publisher: ISBN: Category : Languages : en Pages :
Book Description
ABSTRACT: Karst aquifers are extremely heterogeneous systems, in which conduits are indeterminate, and recharge is spatially variable. Developing a physically-based numerical model of karst systems is difficult at best. As an alternative several analytical geomorphologic karst models were developed based on the concept of a geomorphologic structure model for surface basins. These new models express the hydrologic response of a karst basin in terms of calibrated conduit Horton numbers and mean flow velocities. The geomorphologic karst flow models were validated against a numerical model MODFLOW-DCM. Geomorphologic karst models of different orders and complexity were compared. In addition, analytical relationships were derived from governing equations that explicitly express karst basin hydraulic response times to rainfall inputs as a function of conduit Horton number RL and a mean basin velocity. One of the several geomorphologic karst models developed in this dissertation was calibrated and validated to simulate the spring discharges at Blue Spring near Deland, Florida. Time series analysis techniques were used to analyze observed data for rainfall, groundwater levels and spring discharge in the Blue Spring area in Volusia County, Florida. Results indicate that multiple flow components might exist in the karst aquifer, and recharge conditions appear to influence the hydrodynamic characteristics of the karst aquifer. Temporal lag interval results generated from the time series analysis are consistent with response times estimated from the calibrated geomorphologic model.
Author: Lili Yu Publisher: ISBN: Category : Languages : en Pages :
Book Description
ABSTRACT: Karst aquifers are extremely heterogeneous systems, in which conduits are indeterminate, and recharge is spatially variable. Developing a physically-based numerical model of karst systems is difficult at best. As an alternative several analytical geomorphologic karst models were developed based on the concept of a geomorphologic structure model for surface basins. These new models express the hydrologic response of a karst basin in terms of calibrated conduit Horton numbers and mean flow velocities. The geomorphologic karst flow models were validated against a numerical model MODFLOW-DCM. Geomorphologic karst models of different orders and complexity were compared. In addition, analytical relationships were derived from governing equations that explicitly express karst basin hydraulic response times to rainfall inputs as a function of conduit Horton number RL and a mean basin velocity. One of the several geomorphologic karst models developed in this dissertation was calibrated and validated to simulate the spring discharges at Blue Spring near Deland, Florida. Time series analysis techniques were used to analyze observed data for rainfall, groundwater levels and spring discharge in the Blue Spring area in Volusia County, Florida. Results indicate that multiple flow components might exist in the karst aquifer, and recharge conditions appear to influence the hydrodynamic characteristics of the karst aquifer. Temporal lag interval results generated from the time series analysis are consistent with response times estimated from the calibrated geomorphologic model.
Author: Zoran Stevanović Publisher: Springer ISBN: 3319128507 Category : Science Languages : en Pages : 698
Book Description
This practical training guidebook makes an important contribution to karst hydrogeology. It presents supporting material for academic courses worldwide that include this and similar topics. It is an excellent sourcebook for students and other attendees of the International Karst School: Characterization and Engineering of Karst Aquifers, which opened in Trebinje, Bosnia & Herzegovina in 2014 and which will be organized every year in early summer. As opposed to more theoretical works, this is a catalog of possible engineering interventions in karst and their implications. Although the majority of readers will be professionals with geology/hydrogeology backgrounds, the language is not purely technical making it accessible to a wider audience. This means that the methodology, case studies and experiences presented will also benefit water managers working in karst environments.
Author: B.F. Beck Publisher: CRC Press ISBN: 9789058091901 Category : Science Languages : en Pages : 460
Book Description
This text covers topics such as sinkhole formation and regional studies of sinkholes and karst. Issues addressed are taken from the 8th multidiscilinary conference on this subject and chart the characteristics of sinkholes and karst as well as their environmental repercussions.
Author: Derek Ford Publisher: John Wiley & Sons ISBN: 0470849967 Category : Science Languages : en Pages : 581
Book Description
Originally published in 1989, Karst Geomorphology and Hydrology became the leading textbook on karst studies. This new textbook has been substantially revised and updated. The first half of the book is a systematic presentation of the dissolution kinetics, chemical equilibria and physical flow laws relating to karst environments. It includes details of the many environmental factors that complicate their chemical evolution, with a critique of measurement of karst erosion rates. The second half of the book looks at the classification system for cave systems and the influence of climate and climatic change on karst development. The book ends with chapters on karst water resource management and a look at the important issues of environmental management, including environmental impact assessment, environmental rehabilitation, tourism impacts and conservation values. Practical application of karst studies are explained throughout the text. "This new edition strengthens the book's position as the essential reference in the field. Karst geoscientists will not dare to stray beyond arm's reach of this volume. It is certain to remain the professional standard for many decades." Journal of Cave and Karst Studies, August 2007
Author: M. Parise Publisher: Geological Society of London ISBN: 1786203596 Category : Science Languages : en Pages : 483
Book Description
This volume covers major advances in the study of the geomorphology, hydrology, engineering geology and management of these specialized and fragile environments. The book will be valuable for geologists, engineers and geophysicists interested in karst, along with land planners, developers, and managers of show caves, natural parks and reserves in karst areas.
Author: Scott L. Painter Publisher: American Water Works Association ISBN: 1583214895 Category : Aquifers Languages : en Pages : 105
Book Description
This research report summaries and details the first year of work on a multi-year karst modeling project organized to develop enhanced groundwater modeling capabilities that can be used to effectively manage karst aquifers. Discussed are the three key considerations for modeling karst systems were identified: representation of conduits in flow models, representation of flow dynamics in conduits, and representation of partially filled conduits and the numerical experiments used to identify the limitations and advantages of the three general representations of conduits within groundwater models. A new dual-conductivity MODFLOW-2000 package (DCM) was developed for testing the dual-conductivity approach. A turbulence model was added, the software was validated using simple benchmark problems, and code documentation was completed. Simultaneous demonstrations showed that the modeling tool can be successfully applied in complex applications.
Author: Francisco Carrasco Publisher: Springer Science & Business Media ISBN: 3642124860 Category : Science Languages : en Pages : 519
Book Description
The Malaga Symposia Series provides an international forum for scientific debate on the progress made in research into karst environments. The 2010 meeting of the 4th International ISKA presents 80 papers in four key areas: karst hydrogeology and investigations, karst landscape and ecosystems, human interaction with karst environments, and engineering geology in karst areas. This book will be a useful edition to the libraries of consultants, scientists, lecturers, and policy makers concerned with the special issues of karst terrains.
Author: Bartolomé Andreo Publisher: Springer Science & Business Media ISBN: 3642174353 Category : Science Languages : en Pages : 627
Book Description
WATER RESOURCES AND ENVIRONMENT provides a detailed introduction to the full range of advanced, multidisciplinary techniques used in the study of water resources from understanding individual aquifers to the protection and management of water in a sustainable way, compatible with the preservation of the environment. Based on a masters course from UNESCO’s International Hydrological Program, this textbook is accompanied by color figures and graphics, illustrating clearly the content of the text and showing real examples from the field. Each chapter also contains a list of exercises and practical activities as well as case studies.
Author: Jacques Mudry Publisher: Springer ISBN: 3319061399 Category : Science Languages : en Pages : 192
Book Description
Chapters in this book are contributions from the 9th Conference on limestone hydrogeology, organized in Besançon in September 2011 selected by the scientific committee of H2Karst.The book presents latest results on in the field of groundwater flow and storage within the different subsystems of karst aquifers; insights into the complex interaction between groundwater and surface water in karst areas by a multidisciplinary approach; current knowledge on contamination problems and contaminant transport in karst aquifers as well as an overview of karst hydrogeology in different contexts around the world.
Author: Lili Yu
Author: Lili Yu
Author: Zoran Stevanović
Author: B.F. Beck
Author: Derek Ford
Author: Russell S. Harmon
Author: M. Parise
Author: Scott L. Painter
Author: Francisco Carrasco
Author: Bartolomé Andreo
Author: Jacques Mudry