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Books > Earth & environment > Earth sciences > Meteorology > General
The phenomenon of evaporation in the natural environment is of interest in various diverse disciplines. This book is an attempt to present a coherent and organized introduction to theoretical concepts and relationships useful in analyzing this phe nomenon, and to give an outline of their history and their application. The main objective is to provide a better understanding of evaporation, and to connect some of the approaches and paradigms, that have been developed in different disciplines concerned with this phenomenon. The book is intended for professional scientists and engineers, who are active in hydrology, meteorology, agronomy, oceanography, climatology and related environ mental fields, and who wish to study prevailing concepts on evaporation. At the same time, I hope that the book will be useful to workers in fluid dynamics, who want to become acquainted with applications to an important and interesting natural phenomenon. As suggested in its subtitle, the book consists of three major parts. The first, consisting of Chapters I and 2, gives a general ouline of the problem and a history of the theories of evaporation from ancient times through the end of the nineteenth century. This history is far from exhaustive, but it sket hes the background and the ideas that led directly to the scientific revolution in Europe and, ultimately, to our present-day knowledge."
The NATO Advanced Research Workshop on "Paleoclimatology and Paleometeorology: Modem and Past Patterns of Global Atmospheric Transport" (held at Oracle, Arizona, USA from November 17-19, 1987) brought together atmospheric chemists, physicists, and meteorologists who study the origin and transport of modem-day mineral and biological aerosols with geologists and paleobotanists who study the sedimentary record of eolian and hydrologic processes along with modelers who study and conceptualize the processes influencing atmospheric transport at present and in the past. Presentations at the workshop provided a guide to our present knowledge of the entire spectrum of processes and phenomena important to the generation, transport, and deposition of eolian terrigenous material that ultimately becomes part of the geologic record and the modeling techniques that used to represent these processes. The presenta tions on the geologic record of eolian deposition documented our present understanding of the na e and causes of climate change on time scales of the last glacial ages (tens of thousands of years) to time scales over which the arrangement of continents, mountains, and oceans has changed sub stantially (tens of millions of years). There has been a growing recognition of the importance of global climatic changes to the future well-being of humanity. In particular, the climatic response to human alterations to the earth's surface and chemical composition has led to concern over the agricultural, ecological, and societal impacts of such potential global changes."
The world needs to turn away from fossil fuels and use clean, renewable sources of energy as soon as we can. Failure to do so will cause catastrophic climate damage sooner than you might think, leading to loss of biodiversity and economic and political instability. But all is not lost! We still have time to save the planet without resorting to 'miracle' technologies. We need to wave goodbye to outdated technologies, such as natural gas and carbon capture, and repurpose the technologies that we already have at our disposal. We can use existing technologies to harness, store, and transmit energy from wind, water, and solar sources to ensure reliable electricity, heat supplies, and energy security. Find out what you can do to improve the health, climate, and economic state of our planet. Together, we can solve the climate crisis, eliminate air pollution and safely secure energy supplies for everyone.
Biomass burning profoundly affects atmospheric chemistry, the carbon cycle, and climate and may have done so for millions of years. Bringing together renowned experts from paleoecology, fire ecology, atmospheric chemistry, and organic chemistry, the volume elucidates the role of fire during global changes of the past and future. Topics covered include: the characterization of combustion products that occur in sediments, including char, soot/fly ash, and polycyclic aromatic hydrocarbons; the calibration of these constituents against atmospheric measurements from wildland and prescribed fire emissions; spatial and temporal patterns in combustion emissions at scales of individual burns to the globe.
This is a collection of articles written by mathematicians and physicists, designed to describe the state of the art in climate models with stochastic input. Mathematicians will benefit from a survey of simple models, while physicists will encounter mathematically relevant techniques at work.
Evidence shows that global climate change is occurring. Research and debate continue on the role of increasing atmospheric concentrations of greenhouse gases in influencing climate change. Many sectors are or will be influenced by changing climate and climate variability, including increasing global temperatures, changing precipitation patterns, and increased frequency of unusual weather events. Agriculture and the world's supply of food and fiber are particularly vulnerable to such climate change. Effects of Climate Change and Viarability on the Agricultural Production Systems provides an integrated assessment of global climate change's impact on agriculture at the farm level, in the context of farm level adaptation decisions. Ten agricultural areas in the Upper Midwest region - the heart of the United States' corn belt - were subjected to climate change and changing climate variability scenarios through simulations of future climate using results from general circulation models. Crop growth models, calibrated to the study sites, were used to simulate yields under varying climate conditions. Farm level production and economic analyses were performed to determine what adaptation strategies might be best utilized to maintain production and profitability for producers under conditions of global climate change and changing climate variability. Similar integrated analyses from Australia and Argentina provide comparisons from different regions. The robust integrated systems methodology for assessing impacts and adaptation opportunities in several different major agricultural regions provides the reader with an example for similar endeavors. Also discussed are guidelines and useful analytical options for input suppliers, agricultural researchers, and agricultural producers to enable risk averting strategies and adaptations as global climate change plays out.
Present policy issues concern the reduction of ozone levels by controlling its precursors, NOx and volatile organic compounds (VOC). VOC are emitted from anthropogenic and biogenic sources. Whereas our understanding of VOC emissions from anthropogenic sources has advanced significantly in recent years, there is still a lack of knowledge concerning the contribution of biogenic VOC to the budget of organic trace gases and their impact on the formation of ozone in the troposphere. Improving ozone reduction strategies in the future requires a detailed understanding of the chemical processes in the troposphere. This book comprises the results of atmospheric measurements obtained during the field campaign POPCORN (Photo-Oxidant Formation by Plant Emitted Compounds and OH Radicals in North-Eastern Germany) which was carried out to investigate the role and impact of biogenic trace gases on tropospheric chemistry. This volume describes meteorological situations and origins of air masses during the campaign, and presents measurements of a variety of trace gases, solar radiation and photolysis frequencies. Special attention is given to OH radical measurements and the in-situ comparison of the two OH measurement techniques.
The nature of global change in the Pacific Basin is poorly known
compared to other parts of the world. Climate, Environment, and
Society in the Pacific during the Last Millennium describes the
climate changes that occurred in the Pacific during the last
millennium and discusses how these changes controlled the broad
evolution of human societies, typically filtered by the effects of
changing sea level and storminess on food availability and
interaction. Covering the entire period since AD 750 in the
Pacific, this book describes the influences of climate change on
environments and societies during the Medieval Warm Period and the
Little Ice Age, focusing on the 100-year transition between these -
a period of rapid change known as the AD 1300 Event.
THE STUDY OF THE BIOSPHERE The term 'biosphere' first appeared in the works of the French biologist 1.-B. Lamarck and the Austrian geologist E. Suess in the 19th century. In the 20th century, the study of the biosphere attracted considerable attention, largely due to the research of V. I. Vernadsky (1863- 1945). The results Qf Vernadsky's investigations have appeared in a number of publications, including the monograph The Biosphere published in 1926. This work consists of two parts, The Biosphere in Cosmos' and The Zone of Life', written in a form of speculation and reflection that is rarely used in modern studies. This work concerns the distinguishing properties of the space occupied by organisms and the exceptional importance of the activities of these organisms in the formation of their environment. In this and subsequent studies, Vernadsky has laid the foundations of the science of the biosphere, which today plays an important role in th.c many branches of science concerned with the Earth. Several terms have been suggested for the science of the biosphere, including global ecology (a discipline studying the global ecological system, whose meaning is close to that of the biosphere). One of the most prominent predecessors of Vernadsky was his teacher V.
One of the most important issues in current debates on climate change is sea level rise. Hardly a day goes by when there is not a newspaper article, TV or radio presentation on the topic. Nearly half of the world's population live on or near the coast, so there is real concern about the impact that future sea level rise may have. Yet media predictions of future changes tend to be depicted in a sensationalist manner and quite often the explanations of the science of sea level change bear little relation to reality. This book details the history of scientific discoveries that have explained the patterns of sea level change that have taken place across the Earth in the past. Alastair Dawson introduces the many complex processes, some of which are not well-known, that influence patterns and rates of relative sea level change. Using this knowledge, the reader is much better placed to form a clearer perspective on what the future is likely to have in store for sea levels on Earth.Alastair Dawson first addresses some of the most important misconceptions about the topic of sea level change. He then explains the principal causes of sea level change focusing on the key issues of vertical land movements and changes in global ocean volume. He explores the key areas of science that we need to understand in order to evaluate competing assertions of how sea level is likely to change in the future. He also shows how, remarkably, the melting history of the last great ice sheets on Earth is still playing an important part in contributing to present patterns of sea level change. The book concludes with a consideration of the rates and patterns of sea level change that have occurred over the last century and demonstrates how satellite technology is presently contributing new ways of understanding of present patterns of change.
Climate and Environmental Database Systems contains the papers presented at the Second International Workshop on Climate and Environmental Database Systems, held November 21-23, 1995, in Hamburg, Germany. Climate and environmental data may be separated into two classes, large amounts of well structured data and smaller amounts of less structured data. The large amounts are produced by numerical climate models and by satellites, handling data in the order of magnitude of 100 Tbytes for the climate modelling sites and 1000 Tbytes for the recording and processing of satellite data. Smaller amounts of poorly structured data are the environmental data, which come mainly from observations and measurements. Present-day problems in data management are connected with a variety of data types. Climate and Environmental Database Systems addresses the state of the art, practical experience, and future perspectives for climate and environmental database systems, and may be used as a text for a graduate level course on the subject or as a reference for researchers or practitioners in industry.
This anthology of studies by the eminent geographer and climate scientist Eduard BrA1/4ckner (1862-1927) on anthropogenic climate change and the social, political and economic impact of climate variations on societies in historical times, assembles his pioneering work in English for the first time. The issues discussed by BrA1/4ckner are now considered to be among the most pressing facing modern society and climate research. At the turn of the twentieth century, BrA1/4ckner was one of the central protagonists in a vigorous debate in science and society about global climate variability and its political and economic significance. The studies published here were chosen to demonstrate BrA1/4ckner 's wide-ranging scientific interest in climate variability, his extensive empirical research and theoretical analysis of climate change, his assessment of contemporary analyses and thinking about anthropogenic climate change (such as the widespread concern about desiccation), and how he approached the questions of the transfer of scientific knowledge into society. In many ways BrA1/4ckner was a thoroughly modern scientist, convinced, for example, that the issue of climate change and its impact was of considerable scientific merit and that future climate changes are of great significance for the well-being of humankind as well as for the global balance of political and economic relations. BrA1/4ckner 's formidable ideas should have a significant impact on our present views of climate, climate variability and climate impact.
Societies throughout the world depend on food, fiber and forest products. Continuity and security of agricultural and forest production are therefore of paramount importance. Predicted changes in climate could be expected to alter, perhaps significantly, the levels and relative agricultural and forestry production of different nations over the next few decades. Agriculture and forestry are also likely to influence the rate and magnitude of such change, as they can be both significant sources and sinks of a number of greenhouse gases. Adaptive management strategies therefore need to be formulated and implemented for these sectors, to enable them to both adapt to future environmental change, and to limit greenhouse gas emissions. This book arose from an international workshop held in Canberra, Australia, under the auspices of the former IPCC Working Group III - Agriculture, Forestry and Other Human Activities Sub-Group (AFOS). A number of leading speakers at the workshop were approached to encapsulate the concepts discussed and developed at this workshop. The resulting papers make up this volume. The book promotes a greater understanding of the major sources and sinks of greenhouse gases within intensive and extensive cropping and animal production systems, and of agroforestry. It highlights the need to adopt a holistic systems approach to monitoring and reducing greenhouse gas emissions and assessing impacts, and to integrate climate change-related goals and activities with other issues, such as biodiversity, desertification, and sustainable agriculture and forestry.
This volume presents an overview of climatic hazards and climate change, focusing on societal responses, insurance and methodologies for analysis. Drawing on primary research from researchers worldwide, it explores the potential sensitivity to changes in weather hazards that might be expected with climate change. Present hazard vulnerability and risk are often poorly understood and changes in disaster management are crucial. The book argues that disaster managers must adapt their policies to new climatic conditions and continue monitoring trends to detect significant shifts in risk and respond appropriately.
Biometeorology continues to grow as a discipline. It is increasingly recognised for its importance in providing science of relevance to society and well being of the environment. This book is the first in a new book series on Biometeorology. The purpose of the new series is to communicate the interdisciplinary philosophy and science of biometeorology to as wide an audience as possible, introduce scientists and policy makers to the societal relevance of and recent developments in its s- fields and demonstrate how a biometeorological approach can provide insights to the understanding and possible solution of cross-cutting environmental issues. One such cross-cutting environmental issue is climate change. While the literature on the science of climate change, climate change mitigation and the impacts of climate change is voluminous, that on adaptation to climate change is meagre in comparison. The purpose of this book is to partly redress this imbalance by providing insights from a biometeorological perspective. The book acknowledges that society has a long history of adapting to the impacts associated with climatic variability and change but makes the point that climate change poses a real threat to already strained coping systems. Therefore there is a need to realign human use systems with changing climate conditions.
The atmosphere plays a dominant role in shaping the physical
environment and in controlling activities and responses in the
cultural environment. "Atmospheric Processes and Systems" provides
insight to the understanding of such extraordinary atmospheric
events as El Nino.
This book examines how the state of underground structures can be determined with the assistance of force, deformation and energy. It then analyzes mechanized shield methods, the New Austrian tunneling method (NATM) and conventional methods from this new perspective. The book gathers a wealth of cases reflecting the experiences of practitioners and administrators alike. Based on statistical and engineering studies of these cases, as well as lab and field experiments, it develops a stability assessment approach incorporating a stable equilibrium, which enables engineers to keep the structure and surrounding rocks safe as long as the stable equilibrium and deformation compliance are maintained. The book illustrates the implementation of the method in various tunneling contexts, including soil-rock mixed strata, tunneling beneath operating roads, underwater tunnels, and tunnel pit excavation. It offers a valuable guide for researchers, designers and engineers, especially those who are seeking to understand the underlying principles of underground excavation.
Contents - Preface - 1 Historical survey - 2 The thunderstorm - 2.1. Global distribution of thunderstorms - 2.2. The thundercloud - 2.3. Point-discharge currents - 3. The lightning discharge - 3.1. Temporal development of flash to ground - 3.2. Strokes to tall structures - 3.3. Lightning currents and related parameters - 3.4. Frequency of lightning discharges - 4. The lightning conductor - 4.1. Mechanism of strike - 4.2. Striking distance - 4.3. Protective zone - 4.4. Radio-active lightning conductors - 4.5. Frequency of strikes to a structure - 5 Principles of protection - 5.1 Need for protection - 5.2. Design considerations - 5.3. Thermal considerations - 5.4. Mechanical considerations - 5.5. Electrical considerations - 6. Materials and dimensions - 6.1. Conductors for use above ground - 6.2. Conductors for use below ground - 6.3. Corrosion - Lightning Protection - 7. Protective systems for domestic, industrial and public structures - 7.1. Air-termination network - 7.2. Down conductors - 7.3. Earth-termination network - 7.4. Earth electrodes - 7.5. Joints - 7.6. Metal components on and in buildings - 7.7. Sound and television aerials - 7.8. Electricity supply and telephone installations - 7.9. Structures with flammable roofs and farm buildings - 8. Protection of tall structures - 8.1. High-rise buildings - 8.2. Chimneys and cooling towers - 8.3. Churches and monuments - 8.4. Telecommunication structures - 9 Protection of danger structures - 9.1. General considerations - 9.2. Structures above ground - 9.3. Structures below ground - 9.4. Mining and blasting - 9.5. Aircraft - 9.6. Warning devices - 10. Protection of miscellaneous structures - 10.1. Temporary structures - 10.2. Mobile structures - 10.3. Agricultural objects - 10.4. Structures on rock - 10.5. Playing fields and public highways - 10.6. Trees - 10.7. Ships and boats - 11. Maintenance - 11.1. General considerations - 11.2. Test methods - 11.3. Inspection and records - 12. Protection of persons and animals - 12.1. Effects of lightning currents - 12.2. Protection in the open - 12.3. Protection indoors - 12.4. Lightning casualties and resuscitation - 13. Postscript - Appendix - National Codes considered in text - References - Author Index - Subject Index - Contents -
Our understanding of climate and its role in human affairs has changed markedly over recent years, as have climate observation systems and modelling capabilities. Reliance on recent weather statistics to provide a guide for future climate is no longer viable. Evidence of human-induced climate change has placed climate high on political and the media agendas. This text provides an account of what we know about climate and changing climates at the end of the 20th century. Integrating the historical and geographical dimensions of climate, the crucial link between past and future climatic conditions is examined through the geographical lens of the British Isles. Climates of past ages are reconstructed and full descriptions of the present climate are illustrated by graphs, maps and images. Important climate data sets are provided. Marking the 25th anniversary of the Climatic Research Unit, this book distils much of the leading research of present and recent members of the unit and presents a view of climatic change and prospects for the next millenium and beyond. |
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