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Books > Earth & environment > Earth sciences > The hydrosphere > Oceanography (seas)
Burgeoning research into marine natural products during the past two decades has in no small measure been due to an heightened and world-wide interest in the ocean, to the development of new sophisticated computer-driven instrumentation, and to major advances in separation science. Organic chemists have been fully aware that processes in living systems occur in an aqueous medium. Nevertheless, the chemists who have specialized in the study of small molecules have found it expedient to use organic rather than aqueous solvents for the isolation and manipulation of secondary metabolites. The emergence of new chromatographic techniques, the promise of rewarding results, not to mention the relevance of polar molecules to life itself, have contributed to a new awareness of the importance of organic chemistry in an aqueous medium. The first chapter in Volume 2 of Bioorganic Marine Chemistry reflects the growing interest and concern with water-soluble com pounds. Quinn, who pioneered the separation of such molecules, has contributed a review which closely links techniques with results and is based on practical experience. The second chapter, by Stonik and Elyakov, examines the vast chemical literature of the phylum Echinodermata - over one fourth of it in difficulty accessible Russian language publications. The Soviet authors evaluate the data for their suitability as chemotaxonomic markers."
c. P. Wroth, Oxford University, UK I am grateful to the Organising Committee that were covered on the first day. First, we for the invitation to attempt to sum up the had Dr Riemersma talking about positioning proceedings. Summing up is not really the requirements, and it seemed to me to be an appropriate phrase - it is a difficult job to unhappy reflection on human frailty that he do justice in a summary to the amount of was concentrating so much on the errors in material that has been presented over the the system and on the human factors that two days of the conference. Clearly, each led to trouble, emphasizing that the techni paper merits further individual attention in ques are vastly superior to the ability of the order to reflect on its content. What I am human beings who used them. Then, Dr going to say must necessarily be an unbal Palmer talked about a fascinating case his anced critique, because we are considering a tory of the Ocean Thermal Power Project; whole range of knowledge and experience in this was of particular interest because most a wide diversity of topics, and my comments of the other stories we heard were not so are bound to be biased by my own interests. specific and not about such a novel project."
The establishment of relationships between sediment composition and climatic - vironment in the sediment basin and subsequent evolution of climate relates to the classical problems of fundamental sedimentology. The widely known publications by the Russian academicians N. M. Strakhov, A. B. Ronov, and A. P. Lisitsin are dedicated to different aspects of this problem. In particular, the monograph p- lished by A. P. Lisitsin "Sea-ice and iceberg sedimentation in the Ocean: recent and past" (Lisitsin, 2002) closely corresponds to the issues examined in this book. This monograph discusses in detail the environments and means of accumulations of recent marine and oceanic sediments in the ice zone of sedimentation of the Ocean, however, much less attention is given to the history of ice sedimentation, especially to high-resolution paleoceanography. In the present work the authors accepted the following basic principles: 1. StudynotonlyoftheArctic, butalsooftheSubarctic, especiallyofthoseregions, where there were conducted the original studies by the authors. 2. Study of climatic history in uence ( rst of all, - the glaciation evolution of NorthernHemisphere)on sedimentationforthe last 130ka (MIS5e - MIS1)not only in the marine periglacial environment (term of G. G. Matishov), but also in the deep water areas and on the adjacent continental blocks. 3. Imperative description of recent sedimentation environment for subsequent - plication of the comparative-lithologicalmethod. 4. Detailed consideration of accessible stratigraphic and geo-chronometricdata for partition and correlation of various sedimentary facies. Some of the above-mentionedprinciples require further explanation.
In 2005 the CoastGIS symposium and exhibition was once again held in Aberdeen, Scotland, in the UK, the second time that we have had the privilege host this international event in the city of Aberdeen. This was the 6th International S- posium Computer Mapping and GIS for Coastal Zone Management, a collabo- tion between the International Cartographic Association's (ICA) Commission on Marine Cartography, and the International Geographical Union's (IGU) Comm- sion on Coastal Systems. The theme for 2005 was: De ning and Building a Marine and Coastal Spatial Data Infrastructure. As a major coastal event, the CoastGIS series of conferences always attracts an international audience of coastal researchers, managers, and pr- titioners who use one or more of the geospatial technologies (e. g. GIS, GPS, digital mapping, remote sensing, databases, and the Internet) in their work. The CoastGIS series is fundamentally an international event which over the years has gained a strong following attracting delegates from around the globe. Hosted by the University of Aberdeen - at the Aberdeen Exhibition and Conference Centre (AECC) - once again CoastGIS 2005 provided an opportunity to communicate the results of a wide range of innovative scienti c research into coastal and marine applications of the geospatial technologies, including remote sensing, Geograp- cal Information Systems (GIS), Global Positioning Systems (GPS), databases, data models, the Internet and online mapping systems.
Marine environmental conditions such as storms, storm surges and wave heights are directly experienced by, for example, off-shore operations or coastal populations. The authors review and bring together the state-of-the-art and present day knowledge about historical changes, recent trends and concepts on how marine environmental conditions may change in the future as well as discuss models and data problems.
Rifted Ocean-Continent Boundaries covers a wide range of topics, from quantitative modelling to current knowledge of the structure and evolution of specific margins around the world. Special emphasis is placed on the structure and evolution of various Atlantic margins. After an introduction to volcanic margin concepts, the first articles report the results of numerical models of the mechanics of rift propagation, melt generation and sources of extensional stresses that may cause break-up. One part of the book is dedicated to current knowledge of the structure and evolution of various Atlantic margins. After a brief incursion into the Mediterranean, succeeding articles report on the transform and active margins of the Ivory Coast-Ghana transform margin and the Sea of Japan.
The Workshop Proceedings reflect problems of advanced geo-information science as far as they are specifically concerned with the maritime environment at large. The Proceedings incorporate papers presented by leading scientists researching in the considered professional area and by practitioners engaged in GIS and GIS applications development. They pay close attention to the problems of scientific and technological innovations and the ensuing opportunities to make seas safer and cleaner. Furthermore, they periodically measure the ground covered and new challenges with respect to economic and shipping trends as related to Artificial Intelligence; GIS ontologies; GIS data integration and modelling; Underwater acoustics; GIS data fusion; GIS and corporate information systems; GIS and real-time monitoring systems; GIS algorithms and computational issues; Novel and emerging marine GIS research areas; Monitoring of maritime terrorist threat; Maritime and environmental GIS; Navigation-based and maritime transportation GIS; Human factors in maritime GIS; Coastal and environmental GIS.
Shallow water acoustics (SWA), the study of how low and medium frequency sound propagates and scatters on the continental shelves of the worlds oceans, has both technical interest and a large number of practical applications. Technically, shallow water poses an interesting medium for the study of acoustic scattering, inverse theory, and propagation physics in a complicated oceanic waveguide. Practically, shallow water acoustics has interest for geophysical exploration, marine mammal studies, and naval applications. Additionally, one notes the very interdisciplinary nature of shallow water acoustics, including acoustical physics, physical oceanography, marine geology, and marine biology. In this specialized volume the authors, all of whom have extensive at-sea experience in US and Russian research efforts, have tried to summarize the main experimental, theoretical, and computational results in shallow water acoustics, with an emphasis on providing physical insight into the topics presented.
The Conference on the Benthic Boundary Layer was held under the auspices of the NATO Science Committee as part of its continuing effort to promote the useful progress of science through international cooperation. Science Committee Conferences are deliberately designed to focus attention on unsolved problems, with carefully selected participants invited to provide complementary expertise from a variety of relevant disciplines. Through inten sive discussion in small groups they seek to reach a consensus on assessments and recommendations for future research emphasis, which it is hoped will be of value to the larger scientific community. The subjects treated over the past few years have been as varied as science itself-e.g., computer software engineering, chemical catalysis, and materials and energy research. The present effort evolved from informal discussions between marine geolo gists, chemists, and biologists which underlined the desirability of improved communication among those concerned with the benthic layer. In both scien tific and technological terms this is an exciting frontier, rich in promise but poorly understood at present. It is particularly striking to realize that there are at least as many definitions of the benthic layer as there are disciplines involved, and it seemed clear that there was much to be gained by a detailed exchange of views on research capabilities, trends, and priorities. The results of the meeting appear to have confirmed the hopes of the sponsors."
In recent years there has been an increased realization that the casual disposal of wastes can lead to a deterioration in environmen tal quality with substantial impacts on society. The management of waste disposal practices must consider the various alternatives of discharging and decomposing wastes on land, in the atmosphere, and in the marine environment. Up until 1972 ocean dumping was used increasingly to dispose of sewage sludge, industrial wastes, and dredged material. In subsequent years regulations were developed to reduce and minimize ocean dumping. These regulations were prompted often by ignorance of the possible effects of waste disposal in the ocean rather than by knowledge that such ocean dumping was detrimen tal to the marine environment or to man. The relationship between waste disposal and the oceans can be viewed in either of two ways. One may want to assure that waste disposal procedures do not alter adversely the marine environment, or one may choose to utilize the ocean as a waste depository to reduce the burden placed on the con tinental ecosystem and on the atmosphere. From either perspective it is essential that there be an adequate base of technical information to assess the fate and effects of wastes introduced to the ocean. A series of original technical papers has been compiled in this book to present some of the recent results of research on industrial waste disposal in the ocean."
This literature study presents an overview of underwater acoustic networking. It provides a background and describes the state of the art of all networking facets that are relevant for underwater applications. This report serves both as an introduction to the subject and as a summary of existing protocols, providing support and inspiration for the development of network architectures.
The Navier-Stokes equations describe the motion of fluids and are an invaluable addition to the toolbox of every physicist, applied mathematician, and engineer. The equations arise from applying Newton's laws of motion to a moving fluid and are considered, when used in combination with mass and energy conservation rules, to be the fundamental governing equations of fluid motion. They are relevant across many disciplines, from astrophysics and oceanic sciences to aerospace engineering and materials science. This Student's Guide provides a clear and focused presentation of the derivation, significance and applications of the Navier-Stokes equations, along with the associated continuity and energy equations. Designed as a useful supplementary resource for undergraduate and graduate students, each chapter concludes with a selection of exercises intended to reinforce and extend important concepts. Video podcasts demonstrating the solutions in full are provided online, along with written solutions and other additional resources.
Tsunamis are primarily caused by earthquakes. Under favourable
geological conditions, when a large earthquake occurs below the sea
bed and the resultant rupture causes a vertical displacement of the
ocean bed, the entire column of water above it is displaced,
causing a tsunami. In the ocean, tsunamis do not reach great
heights but can travel at velocities of up to 1000 km/hour. As a
tsunami reaches shallow sea depths, there is a decrease in its
velocity and an increase in its height. Tsunamis are known to have
reached heights of several tens of meters and inundate several
kilometres inland from the shore. Tsunamis can also be caused by
displacement of substantial amounts of water by landslides,
volcanic eruptions, glacier calving and rarely by meteorite impacts
and nuclear tests in the ocean.
The monograph presented to foreign readers has been prepared by the famous Soviet investigators of processes of geochemistry and sedimentation in the Mediterranean Sea. For more than 20 years E.M. Emelyanov has examined the recent sedimentation of the Mediterranean Sea and K.M. Shimkus has studied the Quaternary and the earlier sedi mentation of the area. The authors, scientific workers from the P.P. Shirshov Institute of Oceanology, USSR Academy of Sciences (Atlantic and Southern Depart ments), took part not only in numerous cruises on oceanographic vessels of the USSR, but in the study of cores of the deep-sea drilling on R/V "Glomar Challenger." A great number of scientific papers and some books devoted to the processes of sedimentation and geochemistry of the Mediterranean Sea were written by them. Although the scientific interests of the authors are not only limited to these questions, I should like to emphasise these aspects of their scientific activity when introducing this book. The Mediterranean Sea is a suitable natural laboratory for solving a number of principal problems of marine sedimentation and lithogenesis."
As part of its continuing program to stimulate superior basic research in the marine environment, the Office of Naval Research, Ocean Science and Technology Division, sponsored a series of closed seminar-workshops in 1972-1973. Each seminar focused upon one re search area of marine geology which is relatively new and in need of a critical evaluation and accelerated support. The subjects areas chosen for the seminars were: 1. natural gases in marine sediments and their mode of distribution, 2. nephelometry and the optical properties of ocean waters, 3. physical and engineering properties of deep-sea sediments, and 4. physics of sound in marine sediments. The objectives of each seminar-workshop were to bring into sharper focus the state-of-the-science within each subject area, to effect some degree of coordination among the investigators working within each of these areas and to provide the Ocean Science and Technology Division guidance for national program support. This volume.contains most of the papers presented at the semi nar on the physical and engineering properties of deep-sea sediments. The seminar was held at Airlie House, Airlie, Virginia on April 24- 27, 1973 and was organized and chaired by A. Inderbitzen. The at tendees were invited from among the leading investigators in this field from both the engineering and scientific disciplines. Each attendee was requested to prepare a paper within his area of spe ciality."
Satelli te oceanography, as the term is used in this book, is a generic term that means application of the technology of aerospace electromagnetic remote sensing to the study of the oceans. The key words here are "application of technology **. to the study of the oceans." The goal is to learn more about our planet's hydrosphere. As such, remote sensing technology is another tool in the oceanographer's sea bag, just like a bathythermograph or a plankton net. But is a whole book necessary if remote sensing is just another tool? While it is true that no one has written a whole book on plankton nets, volumes have been written about what is found in those nets. Today's state-of-the-art measurements from spacecraft or aircraft first must be interpreted in terms of their physics; then the interpretations must be understood in terms of oceanic processes. This is not materially different from the analogy to Ii plankton net; marine biolo gists still argue about what didn't get caught in the net.
This book presents a historical perspective on plate tectonics. In doing so it discusses the foundations of rigid plate tectonics and the limitations of this approach. This classic approach explains the data at a level of 95 % precision. The authors explain data anomalies as a result of the discrepancies between spatial geodetical data and rigid kinematics in oceans. Data and its interpretation from various disciplines are pulled together in this book.
One of the most crucial but still very poorly understood topics of oceanographic science is the role of ocean processes in contributing to the dynamics of climate and global change. This book presents a series of high level lectures on the major categories of ocean/atmosphere processes. Three of these major issues are the focus of the lectures: (1) air--sea interaction processes; (2) water mass formation, dispersion and mixing; (3) general circulation, with specific emphasis on the thermohaline component. Global examples in the world ocean are provided and discussed in the lectures. In parallel, the Mediterranean Sea is a laboratory basin in providing analogues of the above global processes relevant to climate dynamics. They include the Mediterranean thermohaline circulation with its own `conveyor belt'; intermediate and deep water mass formation and transformations, dispersion and mixing. No other book in the field provides a review of fundamental lectures on these processes, coupled with global examples and their Mediterranean analogues.
Discussing all aspects of offshore surveying in a single volume, this book provides all algorithms necessary to develop complete software suites, and gives a large number of quality control criteria. It is invaluable to professional surveyors, offshore engineers and geophysicists, providing them with a wealth of data in a single volume. It is also a valuable reference work for hydrographic surveyors, seismic navigators and operations geophysicists. This book brings together information on spheroids, datums, projections and binning; gives a complete listing of UKOOA P1/90 and P2/91 formats for data transfer; a field guide to the calibration of radio navigation systems and compasses, acoustic and laser measuring devices; GPS, including calibration, use and differential techniques; field manual for quality control of all aspects of offshore surveying; listing of typical specifications for inclusion in survey contracts; and a comprehensive glossary of relevant terms for offshore surveying.
PREFACE xv LIST OF LECTURERS xix LIST OF PARTICIPANTS xx]. VOLUME I PART I - DESIGN AND DEVELOPMENT OF PHYSICALLY-BASED MODELS OF THE ATMOSPHERE Section 1 - Introduction GATES, W. L. - Climate and the Climate System 3 SIMMONS, A. J. and L. BENGTSSON - Atmospheric General Circulation Models: Their Design and Use for Climate Studies 23 Section 2 - Numerical Methods for Large-Scale Dynamics ARAKAWA, A. - Finite-Difference Methods in Climate Modeling 79 BOURKE, W. - Spectral Methods in Global Climate and Weather Prediction Models 169 Section 3 - Parameterization of Subgrid-Scale Physical Processes FOUQUART, Y. - Radiative Transfer in Climate Models 223 LAVAL, K. - Land Surface Processes 285 SELLERS, P. J. , Y. MINTZ, Y. C. SUD and A. DALCHER - A Brief Description of the Simple Biosphere Model (SiB) 307 SOMMERIA, G. - Parameterization of the Planetary Boundary Layer in Large-Scale Atmospheric Models 331 x TABLE OF CONTENTS TIEDTKE, M. - Parameterization of Cumulus Convection in Large-Scale Models 375 SUNDQVIST, H. - Parameterization of Condensation and Associated Clouds in Models for Weather Prediction and General Circulation Simulation 433 PART II - DESIGN AND DEVELOPMENT OF PHYSICALLY-BASED MODELS OF THE OCEAN AND SEA ICE HAN, Y. -J. - Modelling and Simulation of the General Circulation of the Ocean 465 HIBLER, W. D. - Modelling Sea Ice Thermodynamics and Dynamics in Climate Studies 509 PART III - METHODS OF COUPLING ATMOSPHERE, OCEAN AND ICE MODELS BRYAN, K.
El Nino is a meteorological and oceanographic phenomenon, which occurs at irregular intervals in the eastern tropical Pacific. Its most obvious characteristic is the warming of surface waters, which causes enormous disturbances of the marine environment. A severe Nino may also affect continental systems worldwide. This book gathers in a comprehensive way the information available on the effects of the exceptionally strong 1982-83 Nino on a group of marine mammals, the pinnipeds. It presents an analysis of the effects of environmental stress on the populations of top predators. Data and interpretations are based on a most unusual collection of long-term studies of pinniped population dynamics, behavior and ecology which spanned the El Nino event. The responses of pinniped populations to the El Nino disturbance of the marine ecosystem also has important implications for the management and conservation of marine mammal populations.
Individual cell and particle analysis in aquatic sciences is involved in many aspects of oceanography and limnology, including optical physics of particles, phytoplankton physiology and ecology, marine and aquatic microbiology and food web interactions. This book concentrates on the optimal utilization of flow cytometry and image analysis and the ways in which oceanographic and limnological problems can be uniquely or better addressed using these techniques.
The oceans cover about 72 percent of our planet (which is named for the remaining 28 percent). These oceans have fascinated and challenged the human race for centuries. In the past, the ocean had been used first as a source of food and later as a means of transportation. However, the oceans have recently become very important-they may offer a solution to many of our modern problems. For example, refuse from land is to be dumped into the ocean never to be seen again; fish and other biological resources are to be caught and used to meet the protein deficiency of the world; oil and gas from the continental shelf and perhaps deeper areas will eventually solve our energy problems. None ofthese examples is completely possible, and the at source offood and later as a means of transportation. However, the oceans social, and ecological problems in the marine environment. Countries are al ready planning how the oceans can be divided up, so that they will get their "fair share." Economists, politicians, and others are producing almost daily, optimistic or pessimistic views (depending upon your own viewpoint) about the ocean and its resources. Equally loud reports come from environ mentalists, conservationists, government sources, and oil companies con cerning the pollution and potential destruction of the ocean."
The original idea of this book started when we were making a residual fluxes study of the Paranagua Coastal Lagoon (Brazil) near the colonial town of Guaraque~aba.Among the beautiful mangroves of this Brazilian National Park, between profile and profile, we wondered why South American estuaries were little known in the international arena. Besides, most of the papers published in the literature are based on biological research. Practically nothing is known about their geomorphology and dynamics. That night, while we were walking along the hilly streets of the town, we decided that the only way to have an idea about the degree of advance in the geomorphology and dynamics of our estuaries was to ask the proper South American researchers to write review articles about the estuaries in which they were working or about the gen eral state of the art of the Geomorphology and Physical Oceanography of the estuar ies of his/her country. The book grew from then on. Although initially many scien tists offer to write a chapter, we ran into the same problem these researchers have to publish in journals, they felt that their English was not good enough and withdrew. However, we are very satisfy about the number and quality of the contributions which also passed a very strong review process.
Based on the IAG scientific assembly in Rio de Janeiro, Brazil, this volume combines papers in the fields of gravity and geoid, geodynamics, and geodesy in Antarctica. The volume contains papers on recent progress in absolute and relative gravimetry, on models of the global gravity field, theoretical developments in physical geodesy, and many examples of regional gravity field and geoid models. Geodynamics chapters include papers on earth rotation and geopotential variations, reference frames and global deformations, as well as a section on the combination of space and terrestrial methods for deformation observations. The current status of geodesy in Antarctica is illustrated by a number of papers. |
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