For future studies of oceanic circulation it is necessary to develop the tritium measurement via 3He ingrowth into a routine procedure with a high capacity for efficient use. This paper attempts to demonstrate that this can be achieved using a commercial helium isotope mass spectrometer and special procedures for sample preparation, storage for 3He ingrowth, and 3He transfer from the ingrowth containers into the mass spectrometer. This method allows for measurement with a much higher precision and lower detection limit than is possible with counting techniques. Additionally, the parameters and blanks in routine operation of the system are discussed.

Along much of the shoreline of the world, tidal inlets play an important role in nearshore processes, providing links between the coastal oceans and protected embayments. Their study is of particular importance not only for the understanding of fundamental processes in coastal oceanography but also for engineering and the proper management of the delicate equilibrium of our shorelines. This volume, based on the International Symposium on Hydrodynamics and Sediment Dynamics of Tidal Inlets held at Woods Hole, MA, presents the reader with an overview of contemporary research on these important features. The coverage includes: - mathematical modelling, including a review of inlet hydrodynamics, - observations on hydrodynamics, - sedimentology and morphology, - tidal deltas, - processes and policies pertaining to sedimentation, and the - impacts of shore protection and dredging in beaches.

Synthetic-aperture radar (SAR) as a form of radar to create images of objects, uses the motion of the radar antenna over a targeted region to provide finer spatial resolution than is possible with conventional beam-scanning radars by mounting the antenna on a moving platform such as an aircraft or spacecraft. As antenna aperture (the 'size' of the antenna) is defined by the distance the SAR device travels over a target in the time taken for the radar pulses to return to the antenna, the larger the aperture is, the higher the image resolution, therefore, this enables SAR to create high resolution images with comparatively small physical antennas.This special book aims to provide the updated theories and methods for the use of synthetic aperture radar (SAR) onboard satellites to detect ocean processes, i.e., SAR ocean remote sensing. It is a hi-tech application field having been developed since late 1970s and become a powerful tool for obtaining dynamic signatures from the remote and broad ocean.

Lying along the eastern seaboard of South Africa, the province of Natal has many important associations with the ocean. There is a considerable wealth of information available, presented by specialists from academia and state-funded research organizations. Thus, this volume provides the reader with a broad and thorough overview of the oceanography of this important region of the Southern African coastline. This volume will be of interest to a wide audience of oceanographers, marine geologists, and geographers.

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.

The last one or two decades have witnessed an increased interest in to pographic Rossby waves, both from a theoretical computational as well as an observational point of view. However, even though long periodic pro cesses were observed in lakes and ocean basins with considerable detail, it appears that interpretation in terms of physical models is not suffi ciently conclusive. The reasons for this lack in understanding may be sought both, in the insufficient spatial resolution or the brevity of the time series of the available data and the inadequacy of the theoretical understanding of long periodic oscillating processes in lakes and ocean bays. Advancement will emerge from intensified studies of both aspects, but it is equally our believe that the understanding of long per'iodic oscillations in lakes is presently likely to profit most from a theore tical-computational study of topographic Rossby waves in enclosed basins. With this tractate we aim to provide the reader with the basic concepts of wave motion in shallow waters at subinertial frequencies. Our ques tions throughout this monogra h are essentially: How can the solutions to this topographic wave equation in a prescribed idealized domain be construced; what are the physical properties of these solutions; are their features identifiable by observations; how reliable are such in terpretations, etc."

During the past several years, research into the frontal divisions of the ocean has been particularly intensive. The significance of this lies not only in the fact that, in the five years from 1976 to 1980, more than 500 papers on this question were published in various journals throughout the world and at least three major international discussions were held (see p. 17). The newness of the discussion of the topic stems from the qualitative reinterpretation of the physical essence of the phenomenon and its role in the ocean, particularly in the processes of mixing and structure formation. While in the past the conventional view of fronts as boundaries between large scale water masses of the ocean only led to the recognition of convenient classi fication limits created by nature itself, there is now a tendency to study oceanic fronts as integral elements of the dynamics of oceanic waters. As we understand it, fronts are being associated more and more with the dynamic and kinematic features which arise when kinetic energy and enstrophy are transmitted through a cascade of scales characterizing various forms of motion of a stratified medium in laterally confined oceanic basins. We are beginning to get a better understanding of the role synoptic-scale oceanic eddies play in the process of frontogenesis in the ocean."

Published on behalf of The Commission of the European Communities Directorate-General Information, Market and Innovation

The present lecture notes cover a first course in th most common types of stratified flows encountered in Environ mental Hydraulics. Most of the flows are buoyancy flows, i.e. currents in which gravity acts on small density differences. Part I presents the basic concepts of stagnant, densit- stratified water, and of flowing non-miscible stratified fluids. The similarity to the (presumed) well-known open channel flow, subject to a reduced gravity, is illustrated. Part II treats the miscible density stratified flows. In outlining the governing equations, the strong coupling between the turbulence (the mixing) and the mean flow is emphasized. The presentation and discussions of the basic governing equa tions are followed by illustrative examples. Separate chapters are devoted to Dense Bottom Currents, Free Penetrative Convec tion, Wind-driven Stratified Flow, Horizontal Buoyancy Flow and Vertical jet/plumes. Part III presents some examples of practical problems solved on the basis of knowledge given in the present lecture notes. It is the author's experience that the topics treated in chapter 8 and in the subsequent chapters are especially well suited for self-tuition, followed by a study-circle. ACKNOWLEDGEMENT The author has benefited by the valuable help of his col legues at the Institute of Hydrodynamics and Hydraulic Engin eering, the Technical University of Denmark, especially our librarian Mrs. Kirsten Djcentsrup, our secretary Mrs. Marianne Lewis and our technical draftsman Mrs. Liselotte Norup."

The background for the Workshop on Cohesive Sediment Dynamics - . !!!!!. Special Reference to Physical Processes in Estuaries is briefly outlined in Chapter I. Here I wish to acknowledge those whose support I consider to be pivotal to this under taking. My deepest appreciation goes to Cynthia Vey, whose organizational skills and dedicated effort made the completion of this volume possible. Thanks are also due to Gail Terry for workshop organization, Jean Branson for word processing and Lillean Pieter for helping with drawings. Finally, I must express my sincere appreciation to Arthur Ezra 9f the National Science Foundation for providing support (through Grant No. CEE-8401185) for the workshop, and to Hsiang Wang for depart mental encouragement. With deepest regret, I must note the untimely death of Ranjan Ariathurai, 39, on June 5, 1985, before this volume could be published. He was a guiding force to many within the small group of researchers in cohesive sediment dynamics, and his professional brilliance and inspirational personal qualities constituted the true spirit . behind the workshop. I trust this volume will serve, albeit in a small way, as a fitting memory to this spirit, and to the remarkable professional contributions Ranjan made during his short career. Professor Ray B. Krone Professor Emmanuel Partheniades Department of Civil Engineering Department of Engineering Sciences University of California University of Florida Davis, California Gainesville, Florida TABLE OF CONTENTS CHAPTER PAGE I. INTRODUCTION Ashish J. Mehta **************************************************** 1 II.

Exploration of the oceans using geophysical methods has had a profound effect on the way we view the structure of the Earth and its behaviour through geological time. Geophysics has also played a vital role in the search for petroleum and other natural resources lying beneath the seabed.

This volume on marine geophysics has two objectives: to provide a comprehensive review of techniques and to examine what geophysical observations can tell us about the structure and tectonics of the oceans. Central to geophysical work at sea are the means of locating observations accurately and determining in detail the morphology of the sea floor. These topics are discussed early in the book. Considered next are the powerful seismic techniques for imaging the Earth’s interior from shallow coastal areas to the deep-sea trenches. Further chapters focus on the gravity and magnetic fields over the oceans, heat flow, electrical and radiometric methods and measurements in offshore boreholes. In later parts of the book, wide-ranging geophysical observations are brought together in chapters on the development of the modern oceans, the structure of their deep basins and the nature of their aseismic and seismically active margins.

This book will be of interest to marine scientists and advanced undergraduates and postgraduates following courses on, or undertaking research in, geophysics, marine geology, oceanography, physical sciences, remote sensing, marine surveying and offshore engineering. Contents:

1. Preview
2. Locating offshore observations
3. Seabed imaging by sonar and lidar
4. Seismic exploration at sea: a theoretical background
5. Seismic data acquisition at sea
6. The marine gravity field
7. The Earth’s magnetic field at sea
8. Heat flow
9. Investigations of the sea floor using electrical methods
10. Seabed exploration using radiometric methods
11. Geophysical observations in offshore boreholes
12. Deep-sea geophysics and the changing geometry of the oceans
13. Studies of the oceanic lithosphere: the sedimentary cover
14. Studies of the oceanic lithosphere: the crustal basement and upper mantle
15. Investigations of divergent and transform continental margins
16. Studies of subduction zones

The 4.4-billion-year history of the oceans and their role in Earth's climate system It has often been said that we know more about the moon than we do about our own oceans. In fact, we know a great deal more about the oceans than many people realize. Scientists know that our actions today are shaping the oceans and climate of tomorrow--and that if we continue to act recklessly, the consequences will be dire. In this timely and accessible book, Eelco Rohling traces the 4.4-billion-year history of Earth's oceans while also shedding light on the critical role they play in our planet's climate system. Beginning with the formation of primeval Earth and the earliest appearance of oceans, Rohling takes readers on a journey through prehistory to the present age, vividly describing the major events in the ocean's evolution--from snowball and greenhouse Earth to the end-Permian mass extinction, the breakup of the Pangaea supercontinent, and the changing climate of today. Along the way, he explores the close interrelationships of the oceans, climate, solid Earth processes, and life, using the context of Earth and ocean history to provide perspective on humankind's impacts on the health and habitability of our planet--and on what the future may hold for us. An invaluable introduction to the cutting-edge science of paleoceanography, The Oceans enables you to make your own informed opinions about the environmental challenges we face as a result of humanity's unrelenting drive to exploit the world ocean and its vital resources.

Development and publication of this monograph are the result of the joint efforts of Boston Edison Company and the Pilgrim Administrative Technical Committee (PATC). The PATC is an advisory committee established in 1969 to ensure that Pilgrim Station marine studies have the benefit of Qualified scientific and technical advice and are responsive to regulatory agency concerns. The PATC is composed of representatives from the following: Massachusetts Division of Marine Fisheries Massachusetts Division of Water Pollution Control National Marine Fisheries Service (NOAA) U. S. Environmental Protection Agency U. S. Fish and Wildlife Service (Dept. of the Interior) University of Massachusetts Boston Edison Company The PATC formed the Pi 1 grim Stati on Marine Ecology Monograph Subcommi ttee to guide Monograph funding efforts, oversee technical aspects of preparation, consi der editor sel ecti on, advi se the edi tors and authors, and resol ve possi bl e conflicts. Members of the Subcommittee were as follows: W. Leigh Bridges - Mass. Div. Marine Fisheries (Subcommittee Chairman) Robert Lawton - Mass. Div. of Marine Fisheries Joseph Pelczarski - Mass. Office Coastal Zone Management Michael Ross - University of Massachusetts Robert Leger - U. S. Environmental Protection Agency Thomas Horst - Stone & Webster Engineering Corporation Richard Toner - Marine Research, Inc. Robert Anderson - Boston Edison Company Lewis Scotton - Boston Edison Company This publication was made possible by grants from: Massachusetts Office of Coastal Zone Management Boston Edison Company Massachusetts Division of Marine Fisheries U. S.

Since the pioneering work of Clarke et a1. (1970) it has been known that chlorophyll a (or. more generally. pigments) contained in phytoplankton in near-surface waters produced systematic variations in the color of the ocean which could be observed from aircraft. As a direct result of this work. NASA developed the Coastal Zone Color Scanner (CZCS). which was launched on Nimbus-G (now Nimbus-7) in October 1978. (A short description of the CZCS is provided in Appendix I. ) Shortly before launch. at the IUCRM Colloquium on Passive Radiometry of the Ocean (June 1978). a working group on water color measurements was formed to assess water color remote sensing at that time. A report (Morel and Gordon. 1980) was prepared which summarized the state-of-the-art of the algorithms for atmospheric correction. and phytoplankton pigment and seston retrieval. and which included recommendations concerning the design of next generation sensors. The water color session of the COSPAR/SCOR/IUCRM Symposium 'Oceanography from Space' held in Venice (May 1980. i. e ** in the post-launch period) provided the opportunity for a reassessment of the state-of-the-art after having gained some experience in the analysis of the initial CZCS imagery. Such an assessment is the purpose of this review paper. which will begin with an outline of the basic physics of water color remote sensing and the fundamentals of atmospheric corrections. The present state of the constituent retrieval and atmospheric correction algorithms will then be critically assessed.

The marine environment does not naturally respect arbitrary international boundaries. The establishment and management of transboundary marine protected areas therefore presents major governance challenges. This book analyses a series of marine transboundary conservation initiatives embedded in varying contextual situations to examine the underlying reasons for their success or failure. Utilising an adapted 'pathways of influence' framework, it provides insights into the development of marine transboundary conservation initiatives looking at the effectiveness of international rules, international norms and discourse, market forces and direct access to policy making. Examples come from a wide range of jurisdictions, including territorial seas, continental shelves, exclusive economic zones and areas beyond national jurisdiction. Case studies include initiatives in the Coral Triangle, West Africa, Central America, the Wadden Sea, the Red Sea and the Mediterranean Sea. In addition the authors assess the potential for developing wider international cooperation as a result of relationships forged though involvement within these marine transboundary conservation initiatives.

This book presents an up to date view of iron biogeochemistry in the ocean. It encompasses the description of iron speciation, the analytical methods used to measure the different iron forms in seawater and the different iron biogeochemical models.

For the centennial of the birth of "Silent Spring" author Rachel Carson, a new edition of her groundbreaking paean to the sea
Celebrating the mystery and beauty of birds and sea creatures in their natural habitat, "Under the Sea-Wind"-Rachel Carson's first book and her personal favorite-is the early masterwork of one of America's greatest nature writers. Evoking the special mystery and beauty of the shore and the open sea-its limitless vistas and twilight depths-Carson's astonishingly intimate, unforgettable portrait captures the delicate negotiations of an ingeniously calibrated ecology.

This book aims to share newly obtained results and information on regional oceanography of the South China Sea by leading experts in fields such as water mass, circulation, mesoscale eddies, near-inertial motion, upwelling, mixing, continental shelf waves, internal waves and fronts. These comprehensive results can provide new insights on global and regional climate change.

With a broad array of innovative print and technology resources, Glencoe "Life Science" helps teachers differentiate and accommodate all learners. The range of labs, content area reading, discussion strategies, note-taking tools, and activities provides students with multiple experiences of each Science Benchmark. They give teachers flexibility and the ability to monitor student progress through ongoing assessment.

Oceanography and Marine Biology: An Annual Review remains one of the most cited sources in marine science and oceanography. The ever increasing interest in work in oceanography and marine biology and its relevance to global environmental issues, especially global climate change and its impacts, creates a demand for authoritative reviews summarizing the results of recent research. This volume covers topics that include resting cysts from coastal marine plankton, facilitation cascades in marine ecosystems, and the way that human activities are rapidly altering the sensory landscape and behaviour of marine animals. For more than 50 years, OMBAR has been an essential reference for research workers and students in all fields of marine science. From Volume 57 a new international Editorial Board ensures global relevance, with editors from the UK, Ireland, Canada, Australia and Singapore. The series volumes find a place in the libraries of not only marine laboratories and institutes, but also universities. Previous volume Impact Factors include: Volume 53, 4.545. Volume 54, 7.000. Volume 55, 5.071. Guidelines for contributors, including information on illustration requirements, can be downloaded on the Downloads/Updates tab on the volume's CRC Press webpage. Chapters 2, 3, 4, 5, 6 and 7 of this book are freely available as a downloadable Open Access PDF under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license. The links can be found on the book's Routledge web page at https://www.routledge.com//9780367134150

From the playful sea otter to the gargantuan elephant seals, the California coastline encompasses a variety of diverse habitats that are home to thousands of species of plants and animals. This updated, beautifully illustrated guide highlights over 140 familiar and unique species of birds, marine mammals, nearshore fishes, seashore creatures, seashells and plants -- now all laid out on waterproof paper for those trips to the seashore. An area map is included for quick reference making it the ideal guide for field use for visitors and state residents alike.

Combining rigorous theory with practical application, this book provides a unified and detailed account of the fundamental equations governing atmospheric and oceanic fluid flow on which global, quantitative models of weather and climate prediction are founded. It lays the foundation for more accurate models by making fewer approximations and imposing dynamical and thermodynamical consistency, moving beyond the assumption that the Earth is perfectly spherical. A general set of equations is developed in a standard notation with clearly stated assumptions, limitations, and important properties. Some exact, non-linear solutions are developed to promote further understanding and for testing purposes. This book contains a thorough consideration of the fundamental equations for atmospheric and oceanic models, and is therefore invaluable to both theoreticians and numerical modellers. It also stands as an accessible source for reference purposes.

A marine biologist vividly brings alive the extraordinary ecosystem of the deep ocean--a realm about which we know less than we do about the Moon--and shows how protecting rather than exploiting it will benefit mankind. "The oceans have always shaped human lives," writes marine biologist Helen Scales in her vibrant new book The Brilliant Abyss, but the surface and the very edges have so far mattered the most. "However, one way or another, the future ocean is the deep ocean." A golden era of deep-sea discovery is underway. Revolutionary studies in the deep are rewriting the very notion of life on Earth and the rules of what is possible. In the process, the abyss is being revealed as perhaps the most amazing part of our planet, with a topography even more varied and extreme than its Earthbound counterpart. Teeming with unsuspected life, an extraordinary interconnected ecosystem deep below the waves has a huge effect on our daily lives, influencing climate and weather systems, with the potential for much more--good or bad depending on how it is exploited. Currently the fantastic creatures that live in the deep--many of them incandescent in a world without light--and its formations capture and trap vast quantities of carbon that would otherwise poison our atmosphere; and novel bacteria as yet undiscovered hold the promise of potent new medicines. Yet the deep also holds huge mineral riches lusted after by many nations and corporations; mining them could ultimately devastate the planet, compounded by the deepening impacts of ubiquitous pollutants and rampant overfishing. Eloquently and passionately, Helen Scales brings to life the majesty and mystery of an alien realm that nonetheless sustains us, while urgently making clear the price we could pay if it is further disrupted. The Brilliant Abyss is at once a revelation and a clarion call to preserve this vast unseen world.

The presence of concentrations of organic substances and cations in seawater is a matter of increasing concern to the water industry, environmentalists and the general public alike. It poses a threat of possible health hazards for humans, fish and crustacea. Until fairly recently, the analysis of seawater was limited to a number of major constituents such as chloride and alkalinity. Insufficient attention was given to the analysis of sediments. Analysis of Oceanic Waters and Sediments draws attention to the methods available for analysing sediments in seawater. It covers classical methods as well as the most advanced and recently introduced physical techniques. It also discusses the sensitivities and limitations of the methods. The book is comprised of two major components. The first is a review of the occurrence of organic compounds and cations as well as examples of pollution by these substances in the ocean. The second is concerned with determination of the concentrations of organic compounds and metals, including an in-depth examination of the most sensitive analytical methods that are available and necessary for detecting them due to their low concentrations in the ocean. A detailed exploration of the largely overlooked area of oceanic sediment analysis, this book is of high interest for all professionals in the water industry, from river management to fish industries, sewage effluent treatment and disposal, land drainage and water supply. Its scope also applies to agriculturalists, chemists, biologists, toxicologists, public health workers and public analysts.