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Books > Earth & environment > Earth sciences > Meteorology
The effects of meteorological phenomena upon forest produc tivity and forestry operations have been of concern for many years. With the evolution of system-level studies of forest eco system structure and function in the International Biological Program and elsewhere, more fundamental interactions between forest ecosystems and the atmosphere received scientific atten tion but the emphasis on meteorological and climatological effects on forest processes remained. More recently, as recogni tion has developed of potential and actual problems associated with the atmospheric transport, dispersion, and deposition of airborne pollutants, the effects of forest canopies upon boundary-layer meteorological phenomena has come under scientific scrutiny. Looking to the future, with rising atmospheric con centrations of C02 and increasing competition for the finite fresh-water resources of the earth, interest in the role of forests in global C02 and water balances can also be expected to intensify. Thus, the nature of forest canopy-atmosphere interac tions, that is to say, the meteorological phenomena occurring in and above forest canopies, are of importance to a wide variety of scientific and social-issues. Demands for forest meteorological information currently exceed levels of knowledge and given the economic constraints of science in general and environmental sciences in particular, chances for major improvements in scien tific support in the near future are slim. Unfortunately, studies of environmental phenomena in and above forests are costly and logistically difficult. Trees, the ecological dominants of forest ecosystems, are the largest of all terrestrial organisms."
In this thesis, a new lidar (light detection and ranging) ceilometer capable of monitoring cloud base and sensitive to boundary layer aerosols is introduced. The key to this novelty lies in its divided-lens design that addresses a classical lidar problem of balancing transmitter-receiver overlap and signal-to-noise ratio, along with a method for characterizing overlap in the laboratory. Enhanced sensitivity in the near-range of the instrument is achieved without compromising signal-to-noise in a design that is straightforward to manufacture for broad deployment. The instrument, its optical characterization, and its performance in the field are described. The prototype instrument described here has since formed the basis of a commercial sensor for monitoring clouds and aerosols. High-resolution, continuous observations of clouds and aerosols are needed to reduce the large uncertainties in our current understanding of their influence on climate that have been highlighted by the International Panel on Climate Change. And as international health organizations indicate growing public health threats over the coming decades resulting from poor air quality, extensive aerosol monitoring is required to assess personal exposure to and the health impacts of anthropogenic particulates. Ground-based optical remote sensing measurements made by well-characterized instruments, such as that described in these pages, are critical to this.
Unique properties of laser radiation including its monochromatic properties, polarization, high spectral intensity, coherence, narrow beam divergence, the possibility of controlling the pulse duration and radiation spectrum and, finally, the fact that extremely high power and energy create very favorable conditions for the extensive application of lasers to communi cation systems, systems for the lidar sensing and ultra-high-precision ranging, navigation, remote monitoring of the environment, and many other systems operating in the atmosphere. The operative efficiency of the above systems depends significantly on the state of the atmosphere and the corresponding behavior of laser radia tion propagating through it. This circumstance has stimulated the studies of the above regularities during the passt 10-15 years. For the investiga tions to be carried out the scientists were forced to develop new theories and methods for studying the problem experimentally. Moreover, during such investigations some previously unknown phenomena were observed, among them the nonlinear effects accompanying high-power laser radiation propagating through the atmosphere are of paramount importance. Among the nonlinear effects caused by high-power laser radiation inter action with the atmosphere, the effects accompanying the propagation of high-power radiation through the atmospheric aerosols are of particular interest. Aerosols always occur in the atmosphere. It should be noted that the microphysical and optical characteristics of atmospheric aerosols vary widely, this fact causes a great variety in the features of their inter action with radiation."
During the last 20 years the study of, and the prediction of, changes in the climate of our planet have become an urgent social imperative, addressed to scientists the world over. The first principles on which to base such a study were formulated in 1974 in Stockholm, at the international GARP conference on the physical fundamentals of climate theory and climate modeling. In 1979 the World Meteorological Organization and the International Council of Scientific Unions decided to conduct a global program of climate research. This World Climate Program is designed mainly to investigate the variability of the climate on time scales ranging from a few weeks to a few decades and to create a scientific basis for the long-term forecasting of weather. There is at present a definite need for a monograph which can serve as an introduction to the theory of climate. On a qualitative level (without the apparatus of theoretical physics and mathematics) such an introduction has already been presented, in Part I of a book on the history of climate by Yu. A. Shishkov and the author (Monin and Shishkov, 1979). Part II of that work gives factual data on climatic changes during the course of the Earth's history. The present book is designed to provide such an introduction on a quantita tive level."
The Forest Primary Production Research Group was born in the Department of S- viculture, University of Helsinki in the early 1970s. Intensive ?eld measurements of photosynthesis and growth of forest vegetation and use of dynamic models in the interpretation of the results were characteristic of the research in the group. Electric instrumentation was based on analogue techniques and the analysis of the obtained measurements was based on self-written programs. Joint research projects with the Research Group of Environmental Physics at the Department of Physics, lead by Taisto Raunemaa (1939-2006) started in the late 1970s. The two research groups shared the same quantitative methodology, which made the co-operation fruitful. Since 1980 until the collapse of the Soviet Union the Academy of Finland and the Soviet Academy of Sciences had a co-operation program which included our team. The research groups in Tartu, Estonia, lead by Juhan Ross (1925-2002) and in Petrozawodsk, lead by Leo Kaipiainen (1932-2004) were involved on the Soviet side. We had annual ?eld measuring campaigns in Finland and in Soviet Union and research seminars. The main emphasis was on developing forest growth models. The research of Chernobyl fallout started a new era in the co-operation between forest ecologists and physicists in Helsinki. The importance of material ?uxes was realized and introduced explicitly in the theoretical thinking and measurements.
This collection of peer reviewed papers represents a concise, up-to-date summary of our current knowledge of planetary boundary layer (PBL) physics and parameterization. As such, it makes a major contribution to the interchange of knowledge and ideas between physicists, meteorologists and environmental modellers and sets out the course to be followed in subsequent research to improve PBL parameterizations in climate, numerical weather prediction, air quality, and emergency preparedness models. Major themes covered are: Nature and theory of turbulent boundary layers; Boundary layer flows a" modelling and applications to environmental security; Nature, theory and modelling of boundary-layer flows; and Air flows within and above urban and other complex canopies a" air-sea-ice interactions. The NATO Advanced Research Workshop, held in Dubrovnik, Croatia, 18-22 April 2006, that gave rise to this, book was attended by 57 scientists drawn from 21 countries on four continents. In recognition of his outstanding career and reaching the milestone age of 70, the workshop was dedicated to Professor Sergej Zilitinkevitch and a substantial number of contributions are based on or linked to his fundamental work.
Clouds, convection and precipitation processes are central components of Earth's weather and climate. They are produced by atmospheric motions across a very wide range of space-time scales from local weather to long-term global climate variation. They feedback on these motions by perturbing the heating/cooling that drive the atmospheric circulation. These processes also perturb the oceanic circulation and land surface properties that affect the atmospheric circulation.Because of the coupling of the atmosphere-ocean-land system across all scales by cloud, convection and precipitation processes, studying their behaviors requires measurements in space-time variations across all these scales simultaneously. Satellite constellations with global coverage and high time resolution offer the ideal platforms for such observations. This book summarizes some of the latest research using combinations of various satellite observations to study these processes and to evaluate their representations in global weather and climate models.Included with this publication are downloadable electronic slides and accompanying notes of each lecture for students, teachers, and public speakers around the world to be better able to understand cloud, convection and precipitation processes.
This volume analyzes ecological and socio-economic risks due to climate change in the Himalayan mountain ecosystems, communities, and proposes adaptation strategies and sustainability practices. In order to better understand the potential actions required to improve natural resource conservation and the development of mountain people's livelihoods. The authors discuss the current status of local knowledge system on various environmental aspects of conservation and sustainable use of mountain resources in the Himalaya. The book addresses the institutional capacities, gaps, and priority areas of capacity building to strengthen policies and governance in regard to climate change, landuse management, biodiversity conservation, and sustainable management in the Himalayan region. The aim of this book is to enhance coordination building among policymakers, planners, mountain communities to foster collaboration between different stakeholders by understanding local perceptions of climate change as well as variability issues, and establishing adaptation strategies to cope with these impacts. The chapters incorporate theoretical and applied aspects, and may serve as baseline information for the sustainability of mountain ecosystems through the contribution of multidisciplinary and interdisciplinary expertise from the Himalayan region. The book will be useful for students, teachers, and researchers working in different areas pertaining to mountain ecosystems, as well as policymakers and planners working on issues related to the sustainability of the mountain ecosystem.
This book systematically introduces the new technology used in the construction of underwater large slurry shields under complex conditions. The basic principles, scope of application, construction technology and technical points of the key technologies such as the origin and arrival of the shield, crossing the shallow soil in the middle of the river, crossing the guard, and changing the knife and opening the knife are clarified.
These proceedings are based upon the review lectures, the re search talks and the accompanying discussion from the NATO Advanced Study Institute on "The Dynamical and Chemical Coupling of the Neutral and Ionized Atmosphere" held at Spatind, Norway April 12-22, 1977. In recent years, in spite of the many subdivisions of atmospher ic physics it has become clear that a complete understanding of the subject matter requires an interdisciplinary effort of the scien tists working on a variety of atmospheric phenomena. This Advanced Study Institute was organized in order to meet this demand. A number of eminent scientists were invited to review the major subfields in atmospheric physics and expose the areas where the coupling between the neutral and ionized atmosphere is evident. These review papers were supported by current research results. However, the material covered here is by no means complete con sidering the range of subject matter covered by the title. The re sponsibility for this inadequacy lies with the editors and the pro gram committee, rather than with the individual contributors. Oslo, June 1977. B. Grandal J.A. Holtet. PARTICIPANTS Max-Planck-Institute for Nuclear Physics Arnold, F. P.O.Box 1248, D-0069 Heidelberg F.R.G. Bj centsrn, L. Uppsala Ionospheric Observatory S-755 90 Uppsala Sweden The Institute for Mathematical and Physical Brekke, A."
The book presents a collection of articles devoted to atmospheric and ionospheric science reported during the Conference "Atmosphere, Ionosphere, Safety" held in Kaliningrad, Russia in July 2010. It consists of reviews devoted to physics of elementary processes, aerosols, ionosphere dynamics, microwave discharges and plasmoids. Such a wide range of topics presents a comprehensive analysis of this atmospheric science including trends and questions which exist to be solved.
This two-volume book offers a broad range of discussions on the immense challenge of climate change, one confronting every country on the planet and forcing them to find a path towards a sustainable future that will not have disastrous consequences in relation to our chances of survival. It also presents a snapshot of the status quo, which reflects all the decisions and measures taken to date. Analyzing the consequences of the steps that will shape our future, the two volumes also reflect on important decisions at a global level that have already been taken. In this first volume on green energy, decarbonization, and forecasting the green transition, respected international scholars analyze various technical aspects of and alternatives to the so-called "green energy transition," as well as measures intended to help reach the ambitious goal of net zero emissions within the next thirty years. Throughout the 13 chapters, the authors forecast future scenarios for the use of alternative energy sources. Additionally, the book discusses questions regarding the suitability of current measures and presents innovative alternatives that have remained largely overlooked. This book is a must-read for scholars, researchers and students, as well as policymakers interested in a better understanding of climate change, present scenarios, and alternative solutions and measures.
This book introduces systematically the application of Bayesian probabilistic approach in soil mechanics and geotechnical engineering. Four typical problems are analyzed by using Bayesian probabilistic approach, i.e., to model the effect of initial void ratio on the soil-water characteristic curve (SWCC) of unsaturated soil, to select the optimal model for the prediction of the creep behavior of soft soil under one-dimensional straining, to identify model parameters of soils and to select constitutive model of soils considering critical state concept. This book selects the simple and easy-to-understand Bayesian probabilistic algorithm, so that readers can master the Bayesian method to analyze and solve the problem in a short time. In addition, this book provides MATLAB codes for various algorithms and source codes for constitutive models so that readers can directly analyze and practice. This book is useful as a postgraduate textbook for civil engineering, hydraulic engineering, transportation, railway, engineering geology and other majors in colleges and universities, and as an elective course for senior undergraduates. It is also useful as a reference for relevant professional scientific researchers and engineers.
This book offers an in-depth analysis of how governments in vulnerable regions respond to climate migrations. The author argues that, despite the newness of the discipline, responding to hydro-meteorological disasters at the sub-state level is fairly old and institutionalised. Using the example of India, and the State of Assam, the author demonstrates how existing rights-based frameworks are used as norms for governing climate migrations. However, these normative frameworks become futile when the sub-state simultaneously contests the status of climate migrants as legitimate citizens. Instead, the responsibility is replaced with pity-making and the state becomes an empathetic spectator - who understands the misfortune but refuses to be held accountable for either the development or protection of those worst affected by climate change. Those who migrate due to climate change often find themselves stripped of their lands (because of erosion) and their political belonging to the society. The volume will be useful for those studying climate migrations and disaster responses to better understand how communities which are most affected by climatic disasters may not even have a right to have rights against the State they found themselves in. Ritumbra Manuvie is a Senior Researcher and Lecturer of Law at the University of Groningen, The Netherlands. The author studied migration, citizenship, and belonging in Assam during her doctoral work at the University of Edinburgh. She is currently part of the ELSA - North Netherlands lab which aims to study Ethical, Legal, and Socio-political factors that influence the usage of AI in the health sector.
The main purpose of this book is to introduce the reader to the subject of solar activity and the connection with Earth's climate. It commences with a brief review of the historical progress on the understanding of the solar-terrestrial connection and moves on to an objective scrutiny of the various hypothesis. The text focuses on how knowledge about the solar cycle and Earth's climate is obtained. It includes discussion of observations, methods and the physics involved, with the necessary statistics and analysis also provided, including an examination of empirical relations between sunspots and the Earth's climate. The author reviews plausible physical mechanisms involved in any links between the solar cycle and the Earth's climate, emphasizing the use of established scientific methods for testing hypothesized relationships.
This open access book is designed as a continuation of the editor's 2019 book Achieving the Paris Climate Agreement Goals. This volume provides an in-depth analysis of industry sectors globally, and its purpose is to present emission reduction targets in 5-year steps (2025 to 2050) for the main twelve finance sectors per the Global Industry Classification System. This scientific analysis aims to support the United Nations Principles for Responsible Investment initiative to give sustainability guidance for the global finance industry. The industry sector pathways presented here are based on the latest global and regional 100% renewable energy and non-energy greenhouse gas Representative Concentration Pathways in order to keep climate change significantly under +1.5 C and thereby achieve the Paris Climate Agreement goals. The heart of this book is three chapters presenting the results of industry scenario modelling. These chapters cover twelve industry and service sectors as well as transportation and buildings. The specific energy demand and specific emissions are presented based on the emission accounting concept of "Scope 1, Scope 2 and Scope 3" emission pathways. This methodology has been developed to measure the climate and sustainability index for companies, and this research project expands the methodology to apply it to entire industry sectors. The results presented here are the first overall industry assessments under Scope 1, 2 and 3 from 2020 through 2050. The base for the energy pathways is the scenarios scenarios published in the previous volume. The nonenergy GHG emission scenarios, broken down to agriculture & forestry and industry, are detailed and include all major greenhouse gases and aerosols. The final section of the book presents the main conclusions of the industry pathway development work and recommendations for the finance industry and policy makers. Additionally, future qualitative future investment requirements in specific technologies and measures are presented.
This book comprehensively covers many aspects of green mine, including the basic situation of green mines, mine facilities, extraction management, ecological environment, scientific and technological innovation, standardized management, environmental protection inspectors, and special tools in response to the needs of green mine construction, assessment, and management. It is highly informative with valuable techniques and tools providing insights both for scholars and practitioners working in green mine field.
Climate Change and Life: The Complex Co-evolution of Climate and Life on Earth, and Beyond covers the critical tectonic and biogeochemical cycles that drive climate and shape the modern world. It compares the history of Earth to the histories of Venus and Mars, including new findings of Martian climate change. The book is multidisciplinary and will instruct readers on the range of extremes in climate and biogeochemical cycling that shape life on Earth. Topics covered include climate drivers on Earth (atmospheric gases, non-gaseous particulates in the atmosphere, etc.), various techniques to assess past climates, mass extension drivers, and future predictions. The book takes a long view on climate change and evolution while also focusing on defining moments in Earth history where critical thresholds and events occur. Climate scientists, earth scientists, environmental scientists and researchers in all other areas related to climate change will find value in the research presented in this book.
This book presents the theoretical bases and the application tools for using the 'convergence-confinement' method which is a rational method largely used in design engineering for tunneling. Until recently, the stability conditions of underground works and the choice of support methods were essentially defined on the basis of good practice or empirical methods. The progress made, on one hand on the knowledge of the constitutive laws of soils and rocks and, on the other hand on the numerical modeling of the interaction between the ground and the structures have led to the development of robust design tools for tunnels supports. The convergence-confinement method makes it possible to simulate the excavation of a tunnel and the installation of the support using a simple plane strain model. The book presents the theoretical bases of the method and its most recent developments. Closed-form solutions for stress and displacement fields around tunnels are provided for elastic, viscoelastic and elasto-plastic behavior of the ground. More generally, the principles for applying the method in numerical models are presented.
Around the world, extreme weather events are becoming increasingly "the new normal" and are expected to increase in the 21st century as a result of climate change. Extreme weather events have devastating impacts on human lives and national economies. This book examines ways to protect people from hazards using early warning systems, and includes contributions from experts from four different continents representing 14 different universities, 8 government agencies and two UN agencies. Chapters detail critical components of early warning systems, ways to identify vulnerable communities, predict hazards and deliver information. Unique satellite images illustrate the transnational impact of disasters, while case studies provide detailed examples of warning systems. With contributors from the fields of economics, ethics, meteorology, geography and biology, this book is essential reading for anyone interested in disaster risk reduction or climate change.
The Southern Hemisphere commands an increasing interest among atmospheric chemists. It has smaller and less industrialized continents than the Northern Hemisphere and thus enjoys lower emissions of anthropogenic and biogenic pollu tants. As a consequence, the concentrations of trace species are lower in the Sou thern Hemisphere, giving rise to significant inter-hemispheric gradients. From an observation of the climatology of the various trace gas gradients important conclu sions on the chemical lifetimes, the distribution of sources and transport of trace species can be derived. Thus it is only fitting that the CSIRO Division of Atmos pheric Research, Aspendale, Australia, hosted the Conference on the Scientific Application of Baseline Observations of Atmospheric Composition (SABOAC). It was convened by Dr Graeme Pearman of the CSIRO and sponsored by the CSIRO and the Australian Bureau of Meteorology. Graeme Pearman and Ian Galbally of the CSIRO also agreed to serve as Guest Editors. The Conference was well attended and because of its location enjoyed an un usually large number of participants from the Southern Hemisphere. About 40 papers were presented with a large share of original contributions. At this point we would like to thank the reviewers who helped to maintain strict standards. The con ference topics ranged from Nonreactive Gases, Reactive Gases, Transport, Parti culates, Precipitation Chemistry, to Radiation and Carbondioxide. The present Proceedings do not quite maintain that sequence but partly reflect the order of receipt. DIETER EHHALT 3 Journal of Atmospheric Chemistry 3 (l985), 3-27."
This book describes the latest advances, innovations and applications in the field of waste management and environmental geomechanics as presented by leading researchers, engineers and practitioners at the International Conference on Sustainable Waste Management through Design (IC_SWMD), held in Ludhiana (Punjab), India on November 2-3, 2018. Providing a unique overview of new directions, and opportunities for sustainable and resilient design approaches to protect infrastructure and the environment, it discusses diverse topics related to civil engineering and construction aspects of the resource management cycle, from the minimization of waste, through the eco-friendly re-use and processing of waste materials, the management and disposal of residual wastes, to water treatments and technologies. It also encompasses strategies for reducing construction waste through better design, improved recovery, re-use, more efficient resource management and the performance of materials recovered from wastes. The contributions were selected by means of a rigorous peer-review process and highlight many exciting ideas that will spur novel research directions and foster multidisciplinary collaboration among different waste management specialists.
A charming and beautifully illustrated book, first published in 1893, covering all aspects of the weather including: Times and Seasons, Months, Days of the week, Winter birds and times of their arrival, Sun, Moon and Stars, Wind, Clouds, Mists, Haze, Dew, Fog, Sky, Air, Sound, Sea, Tide, Heat, Rain, Rainbow, Frost, Hail, Snow, Ice, Thunder and Lightning. Measuring instruments include: Barometer, Thermometer, Hygrometer, Telescope, Spectroscope. Animals include: Quadrupeds, Birds, Fish, Molluscs, Reptiles, Insects, Plants etc. This new edition has been completely redesigned and is fully illustrated with reproductions of woodcuts, photographs and drawings throughout. |
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