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Books > Earth & environment > Earth sciences > The hydrosphere > Oceanography (seas)
Sea Ice Image Processing with MATLAB addresses the topic of image processing for the extraction of key sea ice characteristics from digital photography, which is of great relevance for Artic remote sensing and marine operations. This valuable guide provides tools for quantifying the ice environment that needs to be identified and reproduced for such testing. This includes fit-for-purpose studies of existing vessels, new-build conceptual design and detailed engineering design studies for new developments, and studies of demanding marine operations involving multiple vessels and operational scenarios in sea ice. A major contribution of this work is the development of automated computer algorithms for efficient image analysis. These are used to process individual sea-ice images and video streams of images to extract parameters such as ice floe size distribution, and ice types. Readers are supplied with Matlab source codes of the algorithms for the image processing methods discussed in the book made available as online material. Features Presents the first systematic work using image processing techniques to identify ice floe size distribution from aerial images Helps identify individual ice floe and obtain floe size distributions for Arctic offshore operations and transportation Explains specific algorithms that can be combined to solve various problems during polar sea ice investigations Includes MATLAB (R) codes useful not only for academics, but for ice engineers and scientists to develop tools applicable in different areas such as sustainable arctic marine and coastal technology research Provides image processing techniques applicable to other fields like biomedicine, material science, etc
Optical Properties and Remote Sensing of Inland and Coastal Waters discusses the methodology and the theoretical basis of remote sensing of water. It presents physical concepts of aquatic optics relevant to remote sensing techniques and outlines the problems of remote measurements of the concentrations of organic and inorganic matter in water. It also details the mathematical formulation of the processes governing water-radiation interactions and discusses the development of bio-optical models to incorporate optically complex bodies of water into remote sensing projects.
This unique book introduces the biological and ecological basis of the production process in water, and the biology of cultured species. It bridges the gap between research data and aquaculture techniques, and covers problems arising in aquaculture production, such as filtering molluscs. It also introduced modern aspects of oceanography that are important for understanding the production process. The book starts with a section dedicated to the production of living material and matter in the aquatic environment. It then goes on to explore in detail the biological basis of mollusc, crustacean and fish cultures, and the reproduction and nutrition of bivalve molluscs. Also discussed are the intensive and extensive aquaculture producing processes in fresh and marine waters, and finally the pathology reared animals. Up-to-date data are provided and explained to the student using graphs and copious illustrations. The work is especially orientated toward the student reader and provides a comprehensive and authoritative text on the subject.
Seawater desalination is a rapidly growing coastal industry that is increasingly threatened by algal blooms. Depending on the severity of algal blooms, desalination systems may be forced to shut down because of clogging and/or poor feed water quality. To maintain stable operation and provide good feed water quality to seawater reverse osmosis (SWRO) systems, ultrafiltration (UF) pre-treatment is proposed. This research focused on assessing the ability of UF and other pre-treatment technologies to reduce biofouling in SWRO systems. An improved method to measure bacterial regrowth potential (BRP) was developed and applied at laboratory, pilot and full scale to assess the ability of conventional UF (150 kDa) and tight UF (10 kDa) alone and in combination with a phosphate adsorbent to reduce regrowth potential and delay the onset of biofouling in SWRO. The improved bacterial regrowth potential method employs a natural consortium of marine bacteria as inoculum and flow cytometry. The limit of detection of the BRP method was lowered to 43,000 +/- 12,000 cells/mL, which is equivalent to 9.3 +/- 2.6 g-Cglucose/L. The reduction in bacterial regrowth potential after tight UF (10 kDa) was 3 to 4 times higher than with conventional UF (150 kDa). It was further reduced after the application of a phosphate adsorbent, independent of pore size of the UF membrane. Pilot studies demonstrated that the application of tight UF (10 kDa) coupled with a phosphate adsorbent consistently lowered the bacterial regrowth potential and no feed channel pressure drop increase was observed in membrane fouling simulators (MFS) over a period of 21 days. The study also showed that non-backwashable fouling of UF membranes varied strongly with the type of algal species and the algal organic matter (AOM) they release. The presence of polysaccharide (stretching -OH) and sugar ester groups (stretching S=O) was the main cause of non-backwashable fouling. In conclusion, this study showed that an improved BRP method is suitable for the assessment of SWRO pre-treatment systems and it can be a useful tool to develop potential strategies to mitigate biofouling and improve the sustainability of SWRO systems.
This comprehensive handbook, prepared by leading ocean policy academics and practitioners from around the world, presents in-depth analyses of the experiences of fifteen developed and developing nations and four key regions of the world that have taken concrete steps toward cross-cutting and integrated national and regional ocean policy. All chapters follow a common framework for policy analysis. While most coastal nations of the world already have a variety of sectoral policies in place to manage different uses of the ocean (such as shipping, fishing, oil and gas development), in the last two decades, the coastal nations covered in the book have undertaken concerted efforts to articulate and implement an integrated, ecosystem-based vision for the governance of ocean areas under their jurisdiction. This includes goals and procedures to harmonize existing uses and laws, to foster sustainable development of ocean areas, to protect biodiversity and vulnerable resources and ecosystems, and to coordinate the actions of the many government agencies that are typically involved in oceans affairs. The book highlights the serious conflicts of use in most national ocean zones and the varying attempts by nations to follow the prescriptions emanating from the 1982 UN Law of the Sea Convention and the outcomes of the 1992, 2002, and 2012 sustainable development summits. The interrelationship among uses and processes in the coast and ocean requires that ocean governance be integrated, precautionary, and anticipatory. Overall, the book provides a definitive state-of-the-art review and analysis of national and regional ocean policies around the world.
This book aims to present the overall existing tsunami hazard in the Caribbean Sea region, a region which is typically only associated with hurricanes. It initially presents an overview of all of the existing tsunami-causing factors found in the region: earthquakes, sub-aerial and submarine landslides, and submarine explosions. This is followed by field evidence of recent and pre-historic tsunami events, which gives credibility to all of this effort. The next section is a description of the tsunami hazard mitigation efforts being carried out locally and in collaboration with national and international programs. The final part is dedicated to the presentation of related recent research results.
Temperature and precipitation increase and decrease because of
natural causes. However, anthropogenic changes, such as an enhanced
greenhouse effect, may result in alterations in the regional
climate and in relative sea level. Serious changes in climate and
sea level-with adverse effects particularly along low-lying
coasts-would affect millions of people. Climate Change takes an
in-depth, worldwide look at coastal habitation with respect to
these natural and anthropogenic changes.
This up-to-date revision of a bestseller sets the standard for planning and implementing cost-effective sediment sampling programs. Handbook of Techniques for Aquatic Sediments Sampling, Second Edition is the only comprehensive text on procedures for sampling bottom sediments, suspended sediments, and sediment pore water. Practical guidance is also provided for sample handling and preservation to ensure accurate physicochemical analysis. No other reference source provides more tools for obtaining representative samples for evaluating potential contaminant effects on aquatic environments.
Chemical Kinetics and Process Dynamics in Aquatic Systems is devoted to chemical reactions and biogeochemical processes in aquatic systems. The book provides a thorough analysis of the principles, mathematics, and analytical tools used in chemical, microbial, and reactor kinetics. It also presents a comprehensive, up-to-date description of the kinetics of important chemical processes in aquatic environments. Aquatic photochemistry and correlation methods (e.g., LFERs and QSARs) to predict process rates are covered. Numerous examples are included, and each chapter has a detailed bibliography and problems sets. The book will be an excellent text/reference for professionals and students in such fields as aquatic chemistry, limnology, aqueous geochemistry, microbial ecology, marine science, environmental and water resources engineering, and geochemistry.
Accurate predictions of storm surge are of importance in many coastal areas in the world to avoid and mitigate its destructive impacts. For this purpose the physically-based (process) numerical models are typically utilized. However, in data-rich cases, one may use data-driven methods aiming at reconstructing the internal patterns of the modelled processes and relationships between the observed descriptive variables. This book focuses on data-driven modelling using methods of nonlinear dynamics and chaos theory. First, some fundamentals of physical oceanography, nonlinear dynamics and chaos, computational intelligence and European operational storm surge models are covered. After that a number of improvements in building chaotic models are presented: nonlinear time series analysis, multi-step prediction, phase space dimensionality reduction, techniques dealing with incomplete time series, phase error correction, finding true neighbours, optimization of chaotic model, data assimilation and multi-model ensemble prediction. The major case study is surge prediction in the North Sea, with some tests on a Caribbean Sea case. The modelling results showed that the enhanced predictive chaotic models can serve as an efficient tool for accurate and reliable short and mid-term predictions of storm surges in order to support decision-makers for flood prediction and ship navigation.
In this new and highly original textbook for a range of interdisciplinary courses and degree programmes focusing on marine and coastal resource management, readers are offered an introduction to the subject matter, a broad perspective and understanding, case study applications, and a reference source. Each chapter is written by an international authority and expert in the respective field, providing perspectives from physical and human geography, marine biology and fisheries, planning and surveying, law, technology, environmental change, engineering, and tourism. In addition to an overview of the theory and practice of its subject area, many chapters include detailed case studies to illustrate the applications, including relationships to decision-making requirements at local, regional, and national levels. Each chapter also includes a list of references for further reading, with a selection of key journal papers and URLs. Overall, this volume provides a key textbook for undergraduate and postgraduate courses and for the coastal or marine practitioner, as well as a long-term reference for students.
The ocean is the ultimate sink for all liquid waste and has for many years been the recipient of both treated and untreated sewage waste. This book offers a comprehensive study on the subject of ocean disposal of these effluents. The early chapters cover the philosophy of outfall design, properties of sewage from developed towns and an overview of water quality regulations in New Zealand, Great Britain and the U.S. Alternative ways of satisfying these regulations are discussed. The book also provides information required to design outfall pipelines and diffusers. The methods of calculating the initial dilution and the investigations necessary to compute the further dispersion of the effluent are discussed. A brief discussion of the problems of salt water intrusion, of outfall construction and post construction monitoring is presented at the end of the book.
This book has been conceived with the aim of contributing to the "International Conference on Ocean Management in Global Change" (Genoa, June 22-26, 1992) and to the ocean sciences' debate on the conceptual framework and targets of sea management. The former objective aimed at encouraging a multidisciplinary approach to the management of the sea and implementing comprehensive approaches to sea resource use and environmental protection and conservation. The latter objective is justified by the growing importance which literature has been attributing to the theoretical and methodological bases of sea management since the late seventies. The thesis which supports this work is that the more marine to sea uses and environmental implications, making holistic views, and creating common forms for implementing multidisciplinary views, the more sea management will have the opportunity of advancing.
This volume brings together a cross-section of marine experts who provide a comprehensive exploration of the major facets of Asia's marine sector. It considers both the marine mineral and fish stocks in Asian waters. This extensive volume examines "official" statistics with an objective eye and provides an overview of fish stock with much focus on the access and management of tuna. It considers global economic issues concerning fishing rights, looks at joint ventures between nations, and considers law enforcement efforts. The volume devotes a section to sea lanes and another to off shore mineral deposits. It also considers current and growing problems and possible solutions regarding pollution:
Aimed at graduate students, researchers and academics in mathematics, engineering, oceanography, meteorology, and mechanics, this text provides a detailed introduction to the physical theory of rotating fluids, a significant part of geophysical fluid dynamics. The text is divided into four parts, with the first part providing the physical background of the geophysical models to be analyzed. Part two is devoted to a self contained proof of the existence of weak (or strong) solutions to the imcompressible Navier-Stokes equations. Part three deals with the rapidly rotating Navier-Stokes equations, first in the whole space, where dispersion effects are considered. The case where the domain has periodic boundary conditions is then analyzed, and finally rotating Navier-Stokes equations between two plates are studied, both in the case of periodic horizontal coordinated and those in R2. In Part IV, the stability of Ekman boundary layers and boundary layer effects in magnetohydrodynamics and quasigeostrophic equations are discussed. The boundary layers which appear near vertical walls are presented and formally linked with the classical Prandlt equations. Finally spherical layers are introduced, whose study is completely open.
* Chapters describe the impact of our reliance plastics in certain sectors and how they relate to microplastic pollution * Investigates emerging solutions to the microplastic pollution * Presents a multi-disciplinary perspective, covering topics such as analytical techniques, quantitative techniques, environmental monitoring and human health monitoring
This book treats the subject of sediment transport in the marine environment, covering transport of noncohesive sediment by waves and currents in- and outside the surf zone. It can be read independently, but a background in hydraulics and basic wave mechanics is required.The primary aim of the book is to describe the physical processes of sediment transport and how to represent them in mathematical models. The book can be divided in two main parts; in the first, the relevant hydrodynamic theory is described. This part contains a review of elementary theory for water waves, chapters on the turbulent wave boundary layer and the turbulent interaction between waves and currents, and finally, surf zone hydrodynamics and wave driven currents.The second part covers sediment transport and morphological development.The part on sediment transport introduces the basic concepts (critical bed shear stress, bed load, suspended load and sheet layer, near-bed concentration, effect of sloping bed); it treats suspended sediment in waves and current and in the surf zone, and current and wave-generated bed forms. Finally, the modelling of cross-shore and long-shore sediment transport is described together with the development of coastal profiles and coastlines.
Chemical Oceanography: Element Fluxes in the Sea focuses on the use of chemical distributions to understand mechanisms of physical, chemical, biological, and geological processes in the ocean. After an introduction describing observed chemical concentrations, chapters focus on using chemical tracers to determine fluxes on a variety of time scales. Long-term chemical cycles are dominated by exchanges between seawater and land, sediments, and underwater volcanoes. Biological and ocean mixing processes dominate internal chemical cycles that respond to changes on hundred- to thousand-year time scales. Stable and radioactive isotopes trace the fluxes of nutrients and carbon to quantify the rates and mechanisms of chemical cycles. Anthropogenic influences - which have grown to be of the same magnitude as some natural cycles - are a specific focus throughout the book. Discussion boxes and quantitative problems help instructors to deepen student learning. Appendices enhance the book's utility as a reference text for students and researchers.
This book discusses coastal defense measures, which have not improved in the past few decades, and better alternatives. It emphasizes on the existence of stable bays in coastal geomorphology and their use in coastal stabilization. The conventional measures for saving beaches, such as seawalls, groins, offshore breakwaters, and renourishment, are discussed in detail, followed by an alternative known as headland control. Many types of coast, and the respective defense measures, are discussed, especially for eroding beaches downcoast of harbors with long breakwaters. The formation of offshore bars during storms is examined and the design of stable recreational beaches is demonstrated. Practical design problems are discussed in all cases. Many issues requiring attention in coastal engineering are also outlined.
Rip currents are among the most dangerous coastal hazards for the bathing public, and contribute to the highest portion of beach rescues all over the world. In order to help life guards in planning and preparing rescue resources so that casualties can be minimized, information about where and when rip currents may occur is needed. This can be provided by a predictive tool which combines meteorological forecasts, hydrodynamic models and remote-sensed observations. In this thesis, a methodology which can provide rip current forecasts for swimmer safety is developed and tested for Egmond aan Zee beach in the Netherlands. The approach uses the numerical model system CoSMoS, combined with daily estimates of nearshore-scale bathymetry obtained from a system called cBathy, which infers depths by estimating wave celerities from video imaging. Furthermore, in order to gain more knowledge on occurrences of rips at Egmond beach, a numerical study on the kinematics of rip currents and the safety implications for swimmers is presented as well. Coupling the video bathymetry estimates with CoSMoS in forecast mode shows that dangerous rips were correctly predicted. This thesis demonstrates the potential application of the proposed system for providing rip current forecasts at Egmond aan Zee.
This book treats the subject of sediment transport in the marine environment, covering transport of noncohesive sediment by waves and currents in- and outside the surf zone. It can be read independently, but a background in hydraulics and basic wave mechanics is required.The primary aim of the book is to describe the physical processes of sediment transport and how to represent them in mathematical models. The book can be divided in two main parts; in the first, the relevant hydrodynamic theory is described. This part contains a review of elementary theory for water waves, chapters on the turbulent wave boundary layer and the turbulent interaction between waves and currents, and finally, surf zone hydrodynamics and wave driven currents.The second part covers sediment transport and morphological development.The part on sediment transport introduces the basic concepts (critical bed shear stress, bed load, suspended load and sheet layer, near-bed concentration, effect of sloping bed); it treats suspended sediment in waves and current and in the surf zone, and current and wave-generated bed forms. Finally, the modelling of cross-shore and long-shore sediment transport is described together with the development of coastal profiles and coastlines.
In this lively history and celebration of the Pacific razor clam, David Berger shares with us his love affair with the glossy, gold-colored Siliqua patula and gets into the nitty-gritty of how to dig, clean, and cook them using his favorite recipes. In the course of his investigation, Berger brings to light the long history of razor clamming as a subsistence, commercial, and recreational activity, and shows the ways it has helped shape both the identity and the psyche of the Pacific Northwest. Towing his wife along to the Long Beach razor clam festival, Berger quizzes local experts on the pressing question: tube or gun? He illuminates the science behind the perplexing rules and restrictions that seek to keep the razor clam population healthy and the biomechanics that make these delicious bivalves so challenging to catch. And he joyfully takes part in the sometimes freezing cold pursuit that nonetheless attracts tens of thousands of participants each year for an iconic "beach-to-table" experience. Watch the book trailer: https://www.youtube.com/watch?v=oiyG20LdLVw
In its detailed, interpretive reconsideration of Adler's involvement with Freud and psychoanalysis, In Freud's Shadow constitutes a seminal contribution to our historical understanding of the early psychoanalytic movement. Making extensive use of the Minutes of the Vienna Psycho-Analytic Society, Freud's correspondence, and the diaries of Lou Andreas-Salome, Stepansky reconstructs the ambience and reanalyzes the substance of the ongoing debates about Adler's work within the psychoanalytic discussion group. One valuable by-product of his undertaking, then, is a compelling portrait of the early Vienna Psycho-Analytic Society from the standpoint of the sociology of small groups and, more especially, of Freud's status as the "group leader" of the Society. Thoroughly researched, meticulously documented, and brilliantly written, In Freud's Shadow: Adler in Context represents a watershed in the literature on Adler, Frued, and the history of psychoanalysis. It will be of major interest not only to psychoanalysts, psychiatrists, and psychologists, but to social scientists, historians, and lay readers interested in the politics of scientific controversy, the sociology of small groups, and the relationship of psychology to contemporary systems of belief.
This volume represents the proceedings from a colloquium held in West Germany in 1980 on late and postglacial oscillations of glaciers. The main texts are in German (13), English (8) and French (5) but all have abstracts in the three languages and all the figure captions are similarly translated. |
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