This book is written for ecologists interested in capturing their understandings of how natural systems work in software - to help inform their work and communicate the consequences of proposed management plans. Historically, ecologists had to rely on the skills of trained computer programmers to modeling natural systems, but now a new generation of software is allowing ecologists to directly capture their understandings of systems in software. This book is a compilation of spatially explicit simulation models developed by ecologists and planners without any formal computer programming skills. Readers will be inspired to believe that they too can create similar models of the systems with which they are familiar."

This Brief deals with the reconstruction of Holocene paleoenvironment in the central part of Bangladesh in relation to relative sea-level (RSL) changes which is 200 km north from the present coastline. Lithofacies characteristics, mangal peat, diatom and paleophysiographical evidences were considered to reconstruct the past position and C-14 ages were used to determine the time of formation of the relative sea-level during the Holocene. With standard reference datum the required m.s.l. at the surface of five sections are calculate and the RSL curve suggests that Bangladesh has experienced two mid Holocene RSL transgressions punctuated by regressions. The abundant marine diatom and mangrove pollens indicates that the highest RSL transgression in Bangladesh is around 6000 cal BP which is attained at least 4.5 to 5m higher than the modern m.s.l. After this phase, the relative sea-level started to fall and consequently a freshwater peat developed around 5980 5700 cal BP. The abundant mangrove pollens in salt-marsh succession shows the regression around 5500 cal BP and, the height was 1 2 m higher than the modern sea level. These and more interesting findings are discussed in this Brief.

Today more than 5 million chemicals are known and roughly 100,000 of them are frequently used, with both numbers rising. Many of these chemicals are ultimately released into the environment and may cause adverse effects to ecosystems and human health. Effect-directed analysis (EDA) is a promising tool for identifying predominant toxicants in complex, mostly environmental mixtures combining effect testing, fractionation and chemical analysis. In the present book leading experts in the field provide an overview of relevant approaches and tools used in EDA. This includes diagnostic biological tools, separation techniques and advanced analytical and computer tools for toxicant identification and structure elucidation. Examples of the successful application of EDA are discussed such as the identification of mutagens in airborne particles and sediments, of endocrine disruptors in aquatic ecosystems and of major toxicants in pulp and paper mill effluents. This book is a valuable, comprehensive and interdisciplinary source of information for environmental scientists and environmental agencies dealing with the analysis, monitoring and assessment of environmental contamination.

This book was developed from a workshop on the "Effective Use of Ecological Modeling in Management," held in Oak Ridge, Tennessee, on October 23-26, 2000. The workshop was sponsored by the Department of Defense's (DoD's) Strategic Environmental Research and Development Program (SERDP), the Army Research Of?ce, and the Engineering Research and Development Center of the Corps of Engineers as well as by the U. S. Department of Agriculture (USDA) Forest Service. It was hosted by the Department of Energy's (DOE's) Oak Ridge National Laboratory (ORNL). The organizing committee for the workshop included senior s- entists from ORNL,the USDA Forest Service,and the U. S. Army Corps of Engineers (ACE). The members of the steering committee were John Barko,Paul Bradford,Bill Goran,Jeff Holland,Russell Harmon,and Mike Vasievich. They helped guide the workshop to a useful product by sugge- ing topics, speakers, and participants. Workshop attendees included senior ecological modelers within the Forest Service,DoD,other federal and state agencies, universities, and the private sector together with ecologic- resource managers in the Forest Service, DoD, and other government and nongovernment agencies and organizations. The book never could have come to fruition without the dedicated efforts of Fred O'Hara in editing each of the chapters and making sure that the text was complete and accurate and that standard methods of expression and design were used in the text, references, tables, and ?gures. His careful attention to the details and to effective communication is appreciated. Many people helped in bringing the book to completion.

Air pollution has historically been viewed as a local or regional scale problem with attention focused on acute episodes such as the sulphur dioxide and smoke smogs of London in the 1950s and 1960s and the photochemical smogs of southern California first recognized by Haagen Smit in the early 1950s. In recent years, however, it has become apparent that human activity has, and still is, changing the chemical composition of the atmosphere on a global scale. The composition of the atmosphere has seen enormous changes due to natural processes since the formation of the planet. Data obtained from air bubbles trapped in polar ice are beginning to reveal information about these changes over the last tens of thousands of years and geochemical models of the evolution of the Earth give us insights into the changes over much longer periods of time. Perhaps the crucial differences between these natural changes and those now being induced by man are their rel ative rates of change. The magnitude of present day fluxes of some com pounds released as air pollutants is in some cases much larger than those arising naturally. In other cases, for example carbon dioxide, the an thropogenic emission rates are small compared with that of the natural cycle, but the kinetics of the system are such that the steady state concent rations of the compounds in the atmosphere are now being perturbed."

In the process of building and using models to comprehend the dynamics of the atmosphere, ocean and climate, the reader will learn how the different components of climate systems function, interact with each other, and vary over time. Topics include the stability of climate, Earths energy balance, parcel dynamics in the atmosphere, the mechanisms of heat transport in the climate system, and mechanisms of climate variability. Special attention is given to the effects of climate change.

This book about the Mekong Delta presents a unique collection of state-of-the-art contributions by international experts from different scientific disciplines about the characteristics and pressing water-related challenges of the Mekong Delta in Vietnam. The Mekong Delta belongs to one of the areas, which are to expect the largest challenges concerning environmental change and climate change induced sea level rise . The Delta acts as the "rice bowl" of Southeast Asia and is home to over 17 Million people, who need to cope with ecologic as well as socio-economic changes linked to the rapid economic development of the country. Annual floods, severe droughts, salt water intrusion, degrading water quality, tropical cyclones, hydrologic changes due to hydropower projects in the upstream of the Mekong, coastal erosion, and the loss of biodiversity are some of the problems in the region. Heterogeneous resource management responsibilities, and the fact that the Mekong - and thus also the Delta - is influenced by six countries aggravate the situation. Integrated water resources management and fostered cooperation and information exchange are pressing needs for the sustainable development of the Delta.

When managers and ecologists need to make decisions about the environment, they use models to simulate the dynamic systems that interest them. All management decisions affect certain landscapes over time, and those landscapes are composed of intricate webs of dynamic processes that need to be considered in relation to each other. With widespread use of Geographic Information Systems (GIS), there is a growing need for complex models corporating an increasing amount of data. The open-source Spatial Modeling Environment (SME) was developed to build upon common modeling software, such as STELLA (R), and Powersim (R), among others, to create, run, analyze, and present spatial models of ecosystems, watersheds, populations, and landscapes. In this book, the creators of the Spatial Modeling Environment discuss and illustrate the uses of SME as a modeling tool for all kinds of complex spatial systems. The authors demonstrate the entire process of spatial modeling, beginning with the conceptual design, continuing through formal implementation and analysis, and finally with the interpretation and presentation of the results.A variety of applications and case studies address particular types of ecological and management problems and help to identify potential problems for modelers. Researchers and students interested in spatial modeling will learn how to simulate the complex dynamics of landscapes. Managers and decision makers will acquire tools for predicting changes in landscapes while learning about both the possibilities and the limitations of simulation models.

An important purpose of The Handbook of Environmental Chemistry is to aid the understanding of distribution and chemical reaction processes which occur in the environment. Volume 1, Part E of this series is dedicated to Environmental Systems, Physical Properties of the Atmosphere, Global Transport and the Thermodynamics of Ecosystems.

Geomatics, the handling and processing of information and data about the Earth, is one geoscience discipline that has seen major changes in the last decade, as mapping and observation systems become ever more sensitive and sophisticated. This book is a unique and in-depth survey of the field, which has a central role to play in tackling a host of environmental issues faced by society. Covering all three strands of geomatics - applications, information technology and surveying - the chapters cover the history and background of the subject, the technology employed both to collect and disseminate data, and the varied applications to which geomatics can be put, including urban planning, assessment of biodiversity, disaster management and land administration. Relevant professionals, as well as students in a variety of disciplines such as geography and surveying, will find this book required reading.
This rapidly developing field uses increasingly complex and accurate systems. Today, technology enables us to capture geo-data in full 3D as well as to disseminate it via the Web at the speed of light. We are able to continuously image the world from space at resolutions of up to 50 cm. Airborne LiDAR (laser surveying) sensors can be combined with digital camera technology to produce geometrically correct images of the Earth's surface, while integrating these with large-scale topographic maps and terrestrial as well as aerial images to produce 3D cityscapes that computer users can explore from their desktops.

The main purpose of water quality monitoring may be seen as evaluating water quality conformity against water quality standards, especially for administrative purposes. Moreover, water quality monitoring data can be applied to estimate and evaluate pollutant loads in rivers. Chronological water quality fluctuations and vertical water quality profiles in water bodies are also important when taking into account the effects of land-based pollutants on coastal sea and estuary water quality. This book discusses the relationships between pollutant discharge and water quality, taking into account urban development and indicators like the pollutant load per capita flowing into the water body (PLCwb), an index used to evaluate the contribution of municipal wastewater pollutant discharge to pollutant loads flowing into ambient water bodies such as coastal zones, bays and lakes.

The core of this volume is a report from a symposium held at the University of Goteborg in the Fall of 1991. It deals with the interplay of science and politics and how DEGREES such interplay affects research agendas. The focus is on polar research in Antarctica, a continent that has been much in the news during the past couple of years. It gives me particular pleasure to thank all the speakers who took part in the program. All of them have many commitments and involvements in international polar research and the protection of Antarctica for its scientific and aesthetic values. The fact that such a distinguished group has been willing to come to Goteborg, to my mind attests to the importance and timeliness of our topic and the relevance of epistemological and policy issues in this field. A presentation of each speaker and author is made within the relevant chapters in the text. My interest in the Antarctic has its origins in discussions with Anders Karlqvist, the Director of the Swedish Polar Research Secretariate at the Royal Academy of Science in Stockholm. Anders and I had worked together in the early 80's in a program on Technology and Culture, among other at the Research Policy Institute in Lund. At the time he was with the Swedish Council for Planning and Coordination of Research (FRN), its Committee for Future Oriented Research headed by Torsten Hager

An important purpose of The Handbook of Environmental Chemi- stry is to aid the understanding of distribution and chemi- cal reaction processes which occur in the environment. It is designed to serve as an important source forenvironmental scientists and decision-makers in industry, governmental and regulatory bodies. Volume 1F is dedicated to geosphere interactions, environmental inorganic geochemistry and the evolution of matter and energy. Contents: "Geosphere Inter- actions on a Convecting Planet: Mixing and Separation" by W.S. Fyfe; "Environmental Inorganic Chemistry of the Conti- nental Crust" by H. Puchelt; "Evolution ofMatter and Ener- gy" by M. Taube.

This book is for all graduate students who are specializing in any environmental issue and who wish to grasp the fundamentals of physics that are required in various fields of science and engineering. The book provides the structural concept of the system state equation and its dynamics, which can be applicable to numerical solutions in several important areas such as heat and mass transfer and fluid dynamics. As a first step, there is a description of how to solve a linear system by conducting an analysis of temperature distribution in an infinite soil as a practical example. This exercise helps readers to fully understand what time and space discretizations are, and how actual numerical solutions should work. Because the concept of the system state equation relies on a vector-matrix form, the book shows how that particular form is applicable to other practical procedures: linear multi regression analysis, the least square method, and others. The book also gives the solution to non-linear dynamical systems and their applications. Although this book may appear to take an unusual approach, the author believes it will be inspiring and greatly helpful for the beginner who seeks a solid understanding of the basis of mathematics and physics for any environmental problems.

This volume comprises the proceedings of the International Workshop on Eco logical Goal Functions, held at the Schleswig-Holstein Cultural Center of Salzau, August 30 -September 4, 1996. The conference - first in a series - intended to be convened at Salzau at 1 -2 year intervals to address various aspects of theo retical and application-oriented ecology, was initiated, organized and carried out under the auspices of the Ecology Center of the Kiel University. It featured key note addresses, invited lectures, submitted papers, and posters. 32 contributions written by authors from eight countries, were selected to be presented in this book. From the very rich discussions of the workshop, some general characteristics emerged which might become important for a deeper understanding of the nature of evolving systems or, in other words, systems with a history, described by variables with a high degree of interdependence. These characteristics include the following: Speaking of 'goal functions' is a convenient 'fa on de parler', since a logical analysis of the formal structure of teleological and causal explanations shows that both are analogous with regard to the inherent structural typology and the basic mode of explanation. Teleological interpretations introduce motives or objectives of actors into the set of 'antecedens' conditions relevant for system evolution, and are consequently a subset of causal interpretations."

Leading experts present methodologies for basinwide approaches to water quality restoration. In 15 chapters the identification of pollution sources, definition of standards and their attainability, surface and groundwater modeling, remediation of contaminated soils and sediments, development and implementation of low cost treatment technologies, basinwide water quality management and remediation, and economic and institutional issues are covered. The book focuses on the situation in central and eastern European countries; however, the topics and solutions are of general interest and have worldwide applications.

The 10th Urban Environment Symposium (10UES) was held on 9 11 June 2010 in Gothenburg, Sweden. UES aims at providing a forum on the science and practices required to support pathways to a positive and sustainable future in the urban environment. The UES series is run by Chalmers University of Technology within the Alliance for Global Sustainability (The AGS).

Papers by leading experts are presented in sections on Sustainable Urban Develoment and Urban Planning; Air Quality and Human Health; Urban Waters; and Urban Soil Contamination and Treatment.

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Environmental Chemistry is a relatively young science. Interest in this subject, however, is growing very rapidly and, although no agreement has been reached as yet about the exact content and limits of this interdisciplinary discipline, there appears to be increasing interest in seeing environmental topics which are based on chemistry embodied in this subject. One of the first objectives of Environmental Chemistry must be the study of the environment and of natural chemical processes which occur in the environment. A major purpose of this series on Environmental Chemistry, therefore, is to present a reasonably uniform view of various aspects of the chemistry of the environment and chemical reactions occurring in the environment. The industrial activities of man have given a new dimension to Environmental Chemistry. We have now synthesized and described over five million chemical compounds and chemical industry produces about hundred and fifty million tons of synthetic chemicals annually. We ship billions of tons of oil per year and through mining operations and other geophysical modifications, large quantities of inorganic and organic materials are released from their natural deposits. Cities and metropolitan areas ofup to 15 million inhabitants produce large quantities of waste in relatively small and confined areas. Much of the chemical products and waste products of modern society are released into the environment either during production, storage, transport, use or ultimate disposal. These released materials participate in natural cycles and reactions and frequently lead to interference and disturbance of natural systems.

This volume includes revised versions of most of the presentations made at the International Conference "Understanding the Earth Sys tem: Compartments, Processes and Interactions" held on November 24-26, 1999 in Bonn. The Conference was organized by the German National Committee on Global Change Research as part of the Bonn Science Festival 1999-2000. The Bonn Science Festival (Wissen schaftsfestival Region Bonn) was organized and funded by sfg Strukturforderungsgesellschaft Bonn/Rhein-Siegl Ahrweiler mbH. The generous support for organizing the conference and printing this volume by sfg is gratefully acknowledged. Additional financial and organizational support for separate workshop sessions and publica tions have also been provided by the German Federal Ministry for Science and Research, BMBF and Germany's major research funding agency, Deutsche Forschungsgemeinschaft. The editors wish to gratefully acknowledge the help, advice and especially patience of many individuals who have contributed to this volume. The contributions are intended to document the debate on crucial issues of the emerging concept of earth system science and to stimulate the necessary scientific discussion. While every effort has been made on the part of the editors to ensure consistency in termi nology, style and methods of quotation, the variety of contributors has inevitably resulted in certain discrepancies. E. EHLERS Bonn, February 2001 T. KRAFFT Contents Part I Panorama: The Earth System: Analysis from Science and the Humanities Chapter 1 Understanding the Earth System - From Global Change Research to Earth System Science . . . . . . . 3 E. EHLERS and T. KRAFFT Chapter 2 Earth System Analysis and Management. . . . . . . . . . . . .. . . . 17 . . .

The Siberian environment is a unique region of the world that is both very strongly affected by global climate change and at the same time particularly vulnerable to its consequences. The news about the melting of sea ice in the Arctic Ocean and the prospect of an ice-free shipping passage from Scandinavia to Alaska along the Russian north coast has sparked an international debate about natural resource exploitation, national boundaries and the impacts of the rapid changes on people, animals and plants. Over the last decades Siberia has also witnessed severe forest fires to an extent that is hard to imagine in other parts of the world where the po- lation density is higher, the fire-prone ecosystems cover much smaller areas and the systems of fire control are better resourced. The acceleration of the fire regime poses the question of the future of the boreal forest in the taiga region. Vegetation models have already predicted a shift of vegetation zones to the north under s- narios of global climate change. The implications of a large-scale expansion of the grassland steppe ecosystems in the south of Siberia and a retreat of the taiga forest into the tundra systems that expand towards the Arctic Ocean would be very signi- cant for the local population and the economy. I have studied Russian forests from remote sensing and modelling for about 11 years now and still find it a fascinating subject to investigate.

Following the discovery of large petroleum reserves in northern Alaska, the US Department of Energy implemented an integrated field and modeling study to help define potential impacts of energy-related disturbances on tundra ecosystems. This volume presents major findings from this study. A broad range of basic and applied research topics are examined, ranging from ecosystem physiology and biogeochemistry to landscape models that quantify the impact of road-building on tundra hydrology and ecosystem structure.
It is an important resource for researchers and students interested in arctic ecology, as well as for environmental managers concerned with practical issues of disturbances.

Currently, spatial analysis is becoming more important than ever because enormous volumes of spatial data are available from different sources, such as GPS, Remote Sensing, and others.

This book deals with spatial analysis and modelling. It provides a comprehensive discussion of spatial analysis, methods, and approaches related to human settlements and associated environment. Key contributions with empirical case studies from Iran, Philippines, Vietnam, Thailand, Nepal, and Japan that apply spatial analysis including autocorrelation, fuzzy, voronoi, cellular automata, analytic hierarchy process, artificial neural network, spatial metrics, spatial statistics, regression, and remote sensing mapping techniques are compiled comprehensively. The core value of this book is a wide variety of results with state of the art discussion including empirical case studies.

It provides a milestone reference to students, researchers, planners, and other practitioners dealing the spatial problems on urban and regional issues.

We arepleased to announce that this book has been presented with the 2011 publishing award from the GIS Association of Japan.
We would like to congratulate the authors

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Characterising spatial and temporal variation in environmental properties, generatingmapsfromsparse samples,and quantifyinguncertaintiesin the maps,are key concerns across the environmental sciences. The body of tools known as g- statistics offers a powerful means of addressing these and related questions. This volume presents recent research in methodological developments in geostatistics and in a variety of speci?c environmental application areas including soil science, climatology, pollution, health, wildlife mapping, ?sheries and remote sensing, amongst others. This book contains selected contributions from geoENV VII, the 7th Int- national Conference on Geostatistics for Environmental Applications, held in Southampton, UK, in September 2008. Like previous conferences in the series, the meeting attracted a diversity of researchers from across Europe and further a?eld. A total of 82 abstracts were submitted to the conference and from these the organisation committee selected 46 papers for oral presentation and 30 for poster presentation. The chapters contained in the book represent the state-of-the-art in geostatistics for the environmental sciences. The book includes 35 chapters arranged according to their main focus, whether methodological, or in a particular application. All of the chapters included were accepted after review by members of the scienti?c c- mittee and each chapter was also subject to checks by the editors.

This book offers a close examination of water scarcity as a developmental challenge facing member nations of the Southern African Development Community (SADC), the interventions that have been implemented to combat the situation and the challenges still outstanding. The first chapter paints the backdrop of the water scarcity problem, reviewing historical approaches from the 1992 Earth Summit in Rio de Janeiro to the Johannesburg World Summit on Sustainable Development (2002) to the United Nations Rio+20 Conference on Sustainable Development (2012), and recapping principles and agreements reached during and after these conferences. Chapter two examines the Southern Africa region's efforts to combat water scarcity including principles, policies and strategies and the responsibility of each member to implement them. Written by the editor, J.P. Msangi, the chapter describes Namibia's efforts to ensure management of scarce water. Beyond enacting management and pollution control regulations and raising public awareness, Namibia encourages research to ensure attainment of the requirements of both the SADC Protocol and its own water scarcity management laws. The next three chapters offer Namibia-based case studies on impacts of pollution on water treatment; on the effects of anthropogenic activities on water quality and on the effects of water transfers from dams upstream of Von Bach dam. The final chapter provides detailed summaries of the issues discussed in the book, highlighting conclusions and offering recommendations. Combating Water Scarcity in Southern Africa synthesizes issues pertinent to the SADC countries as well as to other regions, and offers research that up to now has not been conducted in Namibia.

The pKa of a compound describes its acidity or basicity and, therefore, is one of its most important properties. Its value determines what form of the compound-positive ion, negative ion, or neutral species-will be present under different circumstances. This is crucial to the action and detection of the compound as a drug, pollutant, or other active chemical agent. In many cases it is desirable to predict pKa values prior to synthesizing a compound, and enough is now known about the salient features that influence a molecule's acidity to make these predictions. Computational Approaches for the Prediction of pKa Values describes the insights that have been gained on the intrinsic and extrinsic features that influence a molecule's acidity and discusses the computational methods developed to estimate acidity from a compound's molecular structure. The authors examine the strengths and weaknesses of the theoretical techniques and show how they have been used to obtain information about the acidities of different classes of chemical compounds. The book presents theoretical methods for both general and more specific applications, covering methods for various acids in aqueous solutions-including oxyacids and related compounds, nitrogen acids, inorganic acids, and excited-state acids-as well as acids in nonaqueous solvents. It also considers temperature effects, isotope effects, and other important factors that influence pKa. This book provides a resource for predicting pKa values and understanding the bases for these determinations, which can be helpful in designing better chemicals for future uses.