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Books > Earth & environment > Earth sciences > The hydrosphere > Oceanography (seas)
While various volumes havepreviously been de- bable, answer to this question lies in the obser- vation that while whitecaps are some of the voted to such topics as droplets and bubbles, it is our conceit that this is the first volume dedi- most apparent features associated with high sea cated to the description of the phenomenon states, they have also pro\'ed to be someofthe of oceanic whitecapping, and to a considera- most difficult objects to measure and describe tion of the role these whitecapsplay in satellite quantitatively, and while scientists as a group marine remote sensing, in sea-salt aerosol gene- may like to tackle difficult problems, we ration, and in a broad range ofother sea surface should not be accused ofundue modesty when processes. This observation, reOecting in part we observe that as a group we also have a finite the relatively modest attention paid until re- tolerance for frustration and ahuman,perhaps cently by the scientific community to white- aesthetic, prejudice in favour ofnatural pheno- caps, is noteworthy when one considers that mena that are amcnable to detailed description. collectively whitecaps are to thegeneral public It is appropriate to note that Professor Wood- one of the most striking features of the sea- cock, to whom this volume is dedicated, ap- scape.
During the 1980's a wealth of information was reported from field and laboratory experiments in order to validate andlor modify various aspects of the surface layer Monin-Obukhov (M-O) similarity theory for use over the sea, and to introduce and test new concepts related to high resolution flux magnitudes and variabilities. For example, data from various field experiments conducted on the North Sea, Lake Ontario, and the Atlantic experiments, among others, yielded information on the dependence of the flux coefficients on wave state. In all field projects, the usual criteria for satisfying M-O similarity were applied. The assumptions of stationarity and homogeneity was assumed to be relevant over both small and large scales. In addition, the properties of the outer layer were assumed to be "correlated" with properties of the surface layer. These assumptions generally required that data were averaged for spatial footprints representing scales greater than 25 km (or typically 30 minutes or longer for typical windspeeds). While more and more data became available over the years, and the technology applied was more reliable, robust, and durable, the flux coefficients and other turbulent parameters still exhibited significant unexplained scatter. Since the scatter did not show sufficient reduction over the years to meet customer needs, in spite of improved technology and heavy financial investments, one could only conclude that perhaps the use of similarity theory contained too many simplifications when applied to environments which were more complicated than previously thought.
Although numerous books have been written on both monitoring and modelling of coastal oceans, there is a practical need for an introductory multi-disciplinary volume to non-specialists in this field. The articles commisioned for this book, organized into four major themes, are written by experts in their disciplines while the text is intended for scientists who do not have extensive training in marine sciences and coastal zone management. As such, the articles in this monograph can be a valuable reference for practicing professionals. The first section introduces the complex physical processes with main emphasis on waste disposal in the coastal ocean. Following this, examples of instrumentation techniques that are commonly used for measuring different properties of oceans are discribed. Coastal and estuarine transport and dispersion modelling is introduced in the next section with examples from different parts of the world. The last section provides an overview of coastal disasters such as tropical cyclones, storm surges and oil spills.
This monograph creates a systematic interpretation of the
theoretical and the most actual experimental aspects of the
internal wave dynamics in the ocean. Firstly, it draws attention to
the important physical effects from an oceanographical point of
view which are presented in mathematical descriptions. Secondly,
the book serves as an introduction to the range of modern ideas and
the methods in the study of wave processes in dispersive
media.
Presenting a novel approach to wave theory, this book applies mathematical modeling to the investigation of sea waves. It presents problems, solutions and methods, and explores issues such as statistical properties of sea waves, generation of turbulence, Benjamin-Feir instability and the development of wave fields under the action of wind. Special attention is paid to the processes of dynamic wind-wave interaction, the formation of freak waves, as well as the role that sea waves play in the dynamic ocean/atmosphere system. It presents theoretical results which are followed by a description of the algorithms used in the development of wave forecasting models, and provides illustrations to assist understanding of the various models presented. This book provides an invaluable resource to oceanographers, specialists in fluid dynamics and advanced students interested in investigation of the widely known but poorly investigated phenomenon of sea waves.
Eugene Sharkov, of the Space Research Institute in Moscow, has here put together the most comprehensive description of the physical findings of an investigation into the spatio-temporal characteristics of the gravity of breaking waves. He 's also described the foam activity in the open sea using methods and instruments of optical and microwave remote sensing. Numerous practical applications and illustrations are provided from air-borne, ship-borne and laboratory up-to-date experiments.
Ten years ago, de Loor and co-workers at TNO, The Netherlands, were the first to report bottom topography patterns in real aperture radar (RAR) images of the southern North Sea. At that time, this was a real puzzle. The skin depth of microwaves for sea water is only of the order of centimeters while the sea bottom is about 20 meters below the surface. Electromagnetic radiation therefore cannot probe the bottom directly. Similar phenomena were found in radar imagery from SEASAT and SIR-AlB synthetic aperture radars (SAR's) of Nantucket Shoals, the English Channel and many other coastal areas. Since then theory and ocean field experiments (Le., Phelps Bank, Georgia Straits, SARSEX, TOWARD, FASINEX, etc.) have advanced our understanding considerably. We now know that these surface signatures are the results of surface currents, perturbed by the bottom topography, which refract the propagation and modulate the energy of (short) surface waves so as to cause microwave backscatter power variations. Hence, any large scale ocean features containing nonuniform surface currents (i.e. internal waves, eddies, fronts, etc.) will cause similar manifestations in the radar imagery by means of current-wave-microwave interactions. Observations confirm this.
This collection of essays and design case studies explores a range of ideas and best practices for adapting to dynamic waterfront conditions while incorporating nature conservation in urbanized coastal areas. The editors have curated a selection of works contributed by leading practitioners in the fields of coastal science, community resilience, habitat restoration, sustainable landscape architecture and floodplain management. By highlighting ocean-friendly innovations and strategies being applied in coastal cities today, this book illustrates ways to cohabit with many other species who share the waterfront with us, feed in salt marshes, bury their eggs on sandy beaches, fly south over cities along the Atlantic Flyway, or attach themselves to an oyster reef. This book responds to the need for inventive, practical, and straightforward ways to weather a changing climate while being responsible shoreline stewards.
Scientists investigating the interaction between the ocean and the atmosphere now believe that the drag coefficient, and the coefficients of heat transfer and moisture transfer at the sea surface, all increase with an intensification of the wind, reaching high values during a storm. This belief is based on the results of gradient and eddy correlation measurements in the air layer over the water, as weIl as on data concerning the effect of storms on the structure of the upper layer of the ocean and on the planetary atmospheric boundary layer. However, until recently it was impossible to explain just how the above coefficients depend on the wind velocity and to extrapolate this dependence into the region of hurricane velocities. Only by studying nonturbulent mechanisms of transfer, which play an important role dose to the surface of a stormy sea, and mechanisms of spray mediated transfer in particular, was it possible to proceed to a solution of this problem. This book presents the results of laboratory and field studies of the spray field in the air layer above the surface of a stormy sea. Since there is a dose correlation between the generation of spray and the breaking of wind waves, considerable attention is given to the analysis of data on the sea state during a storm. Su'ch data are of interest when solving a number of diverse theoretical and applied problems."
Ever-increasing interest in oceanography and marine biology and its relevance to global environmental issues creates a demand for authoritative reviews summarizing the results of recent research. Oceanography and Marine Biology: An Annual Review has answered this demand since its founding by the late Harold Barnes more than forty years ago. Its objective is an annual consideration of basic areas of marine research, dealing with subjects of special or immediate importance, adding new subjects as they arise. The volumes maintain a unified perspective on the marine sciences. Physical, chemical, and biological aspects of marine science are dealt with by experts actively engaged in these fields. This essential reference text for researchers and students in all fields of marine science finds a place in libraries of marine stations and institutes, as well as universities. It consistently ranks among the highest in impact factors for the marine biology category of the citation indices compiled by the Institute for Scientific Information. Volume 42 contains analysis on convective chimneys in the Greenland Sea, spawning aggregations of coral reef fishes, exopolymers (EPS) in aquatic systems, the marine insect Halobates, and much more.
Experts in the field offer the first comprehensive review of the tectonics and magmatism of backarc basins, covering their initial rift stage to mature spreading. Complete with numerous illustrations, each of the twelve chapters focuses on a young, active backarc basin of the circum-Pacific-where volcano-tectonic processes are best studied because of their activity. Key themes in this volume include volcano-tectonics setting; cause and location; rift magmas; and hydrothermal activity. Researchers also present models of the dynamic processes occurring in backarc basins.
The inspiration for "Lessons From The Ocean" came as a result of many walks on the beach at sunset. It was during these "quiet times" with God that much was revealed to Donalyn about the similarities that exist between the ocean and beach, and what happens in everyday life. After a dear friend encouraged her to write these down, Donalyn realized that this could be something that would uplift, encourage and inspire others. Her wish is that you would enjoy reading it and contemplating it as much as she did actually accruing this over several years. Donalyn Knight is the Founder and President of The Spirited Athlete, Inc. She taught for 38 years at Seminole High School in Sanford, Fl and has over 16 years of extensive athletic coaching experience. While at Seminole High School, she has been awarded over 12 Coach of the Year Awards, Teacher of the Year for Seminole High School and Seminole County and was inducted into the SHS Coaches' Hall of Fame there, being presented with The Doc Terwilleger Award. This past year the school named the Outstanding Female Athlete Award after Donalyn. She has worked with Olympic and Professional athletes and served as Fellowship of Christian Athletes Liaison to the WNBA Orlando Miracle. She also worked for USAirways in the evenings for 20 years. Her love of flying, working with people and helping them with their travel needs was something she really enjoyed. Now retired from teaching and the airline, Donalyn is growing The Spirited Athlete which is in it's 8th year. The company has a motivational and inspirational product line as well as presenting college-bound athlete seminars, coaches' seminars, etc. It is obvious by her endeavors that she has a real zest for life and that is directly related to her relationship with her Lord and Saviour, Jesus Christ. "To serve Him above all through whatever it is that I'm doing is the highest privilege of all To God Be the Glory "
Oceans and the Atmospheric Carbon Content, presents an interdisciplinary overview of the role of the oceans as a carbon sink and its relation with pH increasing trends and climate change. This volume discusses topics such as: climate variability during the last deglaciation, based on a high-resolution pollen analysis; the potential impact of CO2 from large metropolitan areas over the adjacent coastal zones and the importance of having high resolution atmospheric CO2 data to estimate accurately air-sea CO2 exchanges; present- day CO2 fluxes in the coastal ocean and their potential feedbacks under global climate change; phytoplankton community responses to climate change with emphasis on decreasing pH trends in sea water and its ecological effects; pH decrease and its effects on sea-water chemistry from a ten year time-series; the effect of acidification on metal bioaccumulation; the effects of increasing temperatures and acidification on contaminant dynamics and availability to biota; the prevention of potential environmental impacts related to the geological sequestration of CO2. The book provides an updated synthesis of current concerns related to global change trends in the oceans with a strong emphasis on acidification. The content draws attention to the importance of dealing with observed global change trends and their effects upon the oceans using an interdisciplinary approach due to their complexity and interlinks between different areas of knowledge.
A timely review of state-of-the-art tsunami research, covering case studies and recent developments from various approaches. Provides a practical guide to improving operational tsunami warning systems and mitigating coastal hazard from tsunamis.
Coastal Informatics: Web Atlas Design and Implementation reviews and presents the latest developments in the emerging field of coastal web atlases through a series of case studies giving practical guidance on geographic data management and documentation through standards-based metadata, as well as making underlying geographic databases interoperable. Readers will find this book of practical use in Web atlas design, development and implementation, improving spatial thinking in the coastal context.
To date, a vast amount of the world's oceans remains uncharted. With water covering more than 70 percent of the Earth's surface, maritime and oceanographic exploration and research is vital. Oceanography and Coastal Informatics: Breakthroughs in Research and Practice is a critical source of academic knowledge centered on technologies, methodologies, and practices related to the biological and physical aspects of the ocean and coastal environments. This publication is divided into four sections: climate change and environmental concerns; data analysis and management; fisheries management and ecology; and GIS, geospatial analysis, and localization. This publication is an ideal reference source for oceanographers, marine and maritime professionals, researchers, and scholars interested in current research on various aspects of oceanography and coastal informatics.
Understanding the Oceans brings together an internationally
distinguished group of authors to consider the enormous advances in
marine science that have been achieved since the voyages of HMS
Challenger a century ago. The whole book draws inspiration from the
seminal contribution made by the research conducted on those
voyages, and each contributor considers the significance of the
findings, relating them to the exciting developments of today and
tomorrow.
ICe in the Ocean examines sea ice and icebergs and their role in the global climate system. It is comprehensive textbook suitablefor students, pure and applied researchers, and anyone interested in the polar oceans; the distribution of sea ice; the mechanisms of growth, development and decay; the thermodynamics and dynamics of sea ice; sea ice deformation and ridge-building; the role of marginal ice zones; the characteristics of icebergs; and the part played by sea ice in the climate system and in the transport of pollutants. An extensive reference list and recommendations for further reading and numerous illustrations, and add to the usefulness of the text.
" ... as soon as one has traversed the greater part of the wild sea, one comes upon such a huge quantity of ice that nowhere in the whole world has the like been known." "This ice is of a wonderful nature. It lies at times quite still, as one would expect, with openings or large fjords in it; but sometimes its movement is so strong and rapid as to equal that of a ship running before the wind, and it drifts against the wind as often as with it." Kongespeilet - 1250 A.D. ("The Mirror of Kings") Modern societies require increasing amounts influence on the water mass and on the resulting of scientific information about the environment total environment of the region; therefore, cer tain of its characteristics will necessarily be in whieh they live and work. For the seas this information must describe the air above the sea, included."
Seagrasses are becoming widely used as in situ indicators of the relative health and condition of subtropical and tropical estuarine ecosystems. To permit meaningful management of our estuaries, there is clearly a need to develop and refine ways of effectively monitoring and assessing seagrasses.
Science and Engineering of Freak Waves provides a holistic and interdisciplinary view of extreme ocean waves for both scientific and engineering applications. Readers will learn the fundamental theory of extreme waves and the implications they have on coastal structures and methods of prediction through chapters that review the definitions of extreme waves, their history and other important observations. After this, the book's authors describe the theory and modeling of extreme waves that occur in various situations. Final sections provide examples of the application of extreme wave research results to various engineering designs are presented. This book provides a comprehensive overview of the current status of our understandings on freak/rogue waves, the science of extreme waves, prediction, and their engineering applications. As such, it is a must read for physical oceanographers looking for a better understanding of prediction models and the history of these waves, and engineers looking for more information on preparedness and implications for offshore structures and shipping.
This book provides a comprehensive overview of ocean electronics, energy conversion, and instrumentation. As remote (satellite) sensing becomes increasingly important, this text provides readers with a solid background of wireless sensor networks and image-processing for oceans and ocean-related energy issues. Features: Focuses on wind energy, ocean wave, ocean tidal, and ocean thermal energy conversion Discusses the measurements of ocean monitoring parameters such as ocean color, sediment monitoring methods, surface currents, surface wind waves, wave height and wind speed, sea surface temperature, upwelling, wave power and the ocean floor Discusses sensors like scanner sensor systems, weather satellites sensors, synthetic aperture radar sensors, marine observation satellite(MOS) sensors, micro sensors for monitoring ocean acidification Includes material on underwater acoustics and underwater communication Assesses the environmental impact of generating energy from the ocean Explores the design of applications of marine electronics and oceanographic instruments
Thisbookfocusesonthedynamicsoftheoceanbeingin?uencedbytheEarth'sro- tion and density strati?cation. Fluids in motion are a dif?cult subject of study that traditionally requires advanced knowledge of analytical mathematics, in particularly matrix algebra, differential and integral calculus, and complex analysis. Hence, this fascinating ?eld of science, known as geophysical ?uid dynamics, is accessible only to a limited number of students - those who either are naturally geniuses or those who underwent tough years of intense University study. Fluid processes are inherently complex and analytical solutions describing ?uid dynamics exist only in a few instances and only under highly simpli?ed assu- tions. Computer-based numerical models are required to approximate ?uid beh- ior in more realistic situations. Because of its complexity, universities tend to offer subjects in computational modelling of ?uid dynamics only at postgraduate level. This is a pity given that ?uid processes are truly fascinating in nature and given that the oceans play a signi?cant role in shaping life on Earth. The approach I pursue in this book is different from the traditional approach.
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