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The reduction of greenhouse gas emissions—particularly from fossil fuel-powered vehicles and airplanes by means of weight savings and leaner fuel consumption, helps to restrain environmental impacts. In general, for a variety of industries, and specifically in the case of transport, where both weight savings and increased energy efficiency are pursued, the use of metal–polymer multi-material structures has been growing at an increasing and particularly fast pace in recent years. Several manufacturing techniques have been, or are being, developed, with the aim of being used for producing dissimilar materials in cost-efficient manners. This book presents recent developments in the state of the art of advanced additive manufacturing and the joining of metal–polymer multi-material structures in transportation. This publication mainly focuses on the correlations between microstructure, manufacturing process (i.e., AddJoining, adhesive bonding, friction riveting, friction-based staking and friction spot joining) properties, and the mechanical performance of metal–polymer multi-material structures.
This book presents the views of leading scientists on the knowledge of the global ocean circulation following the completion of the observational phase of the World Ocean Circulation Experiment. WOCE's in situ physical and chemical measurements together with satellite altimetry have produced a data set which provides for development of ocean and coupled ocean-atmosphere circulation models used for understanding ocean and climate variability and projecting climate change. This book guides the reader through the analysis, interpretation, modelling and synthesis of this data.
The book represents all the knowledge we currently have on ocean circulation. It presents an up-to-date summary of the state of the science relating to the role of the oceans in the physical climate system. The book is structured to guide the reader through the wide range of world ocean circulation experiment (WOCE) science in a consistent way. Cross-references between contributors have been added, and the book has a comprehensive index and unified reference list. The book is simple to read, at the undergraduate level. It was written by the best scientists in the world who have collaborated to carry out years of experiments to better understand ocean circulation. - Presents in situ and remote observations with worldwide coverage - Provides theoretical understanding of processes within the ocean and at its boundaries to other Earth System components - Allows for simulating ocean and climate processes in the past, present and future using a hierarchy of physical-biogeochemical models
Trade, Circulation, and Flow in the Indian Ocean World is a collection which covers a long time span and diverse areas around the ocean. Many of the essays look at the Indian Ocean before Europeans arrived, reminding the reader that there was a cohesive Indian Ocean. This collection includes empirical studies and essays focused on particular area or production. The essays cover various aspects of trade and exchange, the Indian Ocean as a world-system, East African and Chinese connections with the Indian Ocean World, and the movement of people and ideas around the ocean.
Ocean Mixing: Drivers, Mechanisms and Impacts presents a broad panorama of one of the most rapidly-developing areas of marine science. It highlights the state-of-the-art concerning knowledge of the causes of ocean mixing, and a perspective on the implications for ocean circulation, climate, biogeochemistry and the marine ecosystem. This edited volume places a particular emphasis on elucidating the key future questions relating to ocean mixing, and emerging ideas and activities to address them, including innovative technology developments and advances in methodology. Ocean Mixing is a key reference for those entering the field, and for those seeking a comprehensive overview of how the key current issues are being addressed and what the priorities for future research are. Each chapter is written by established leaders in ocean mixing research; the volume is thus suitable for those seeking specific detailed information on sub-topics, as well as those seeking a broad synopsis of current understanding. It provides useful ammunition for those pursuing funding for specific future research campaigns, by being an authoritative source concerning key scientific goals in the short, medium and long term. Additionally, the chapters contain bespoke and informative graphics that can be used in teaching and science communication to convey the complex concepts and phenomena in easily accessible ways. - Presents a coherent overview of the state-of-the-art research concerning ocean mixing - Provides an in-depth discussion of how ocean mixing impacts all scales of the planetary system - Includes elucidation of the grand challenges in ocean mixing, and how they might be addressed
"When combined with computer model simulations, paleoclimatic reconstructions are used to test hypotheses about the causes of climatic change, such as greenhouse gases, solar variability, earth's orbital variations, and hydrological, oceanic, and tectonic processes, This book is a comprehensive, state-of-the art synthesis of paleoclimate research covering all geological timescales, emphasizing topics that shed light on modern trends in the earth's climate." --Book Jacket.
Interocean and interbasin exchanges occur at choke points of relatively limited extent and so provide natural geographic constraints for observing the variability of the global circulation. However, the complex bathymetry of interconnected straits and sills at these choke points and the many unique dynamical processes associated with interocean and interbasin exchanges provide challenges for observations and models alike. While overall the exchanges tend to reduce property gradients between and within ocean basins and marginal seas, they may also introduce contrasting thermohaline fluxes that can potentially influence the strength and stability of the meridional overturning circulation. In this chapter, the present knowledge of interocean exchange through the high-latitude Drake Passage and Agulhas system in the Southern Ocean and the low-latitude Indonesian seas is discussed. Examples of interbasin exchange from marginal seas illustrate their importance as source regions for the forcing of the circulation, or as regions where water masses are formed that modify and mark the variability in the global climate system. Finally, deep passage overflows that permit the exchange of deep and bottom waters between neighboring ocean basins, their characteristics and dynamics are reviewed.
The ocean has entranced mankind for as long as we have gazed upon it, traversed it, dived into it, and studied it. It remains ever changing and seemingly never changing. Each wave that progresses through the. imme diate surf zone on every coast is strikingly different, yet the waves come again and again, as if never to end. The seasons come with essential reg ularity, and· yet each is individual-whatever did happen to that year of the normal rainfall or tidal behavior? This fascination with the currents of the ocean has always had a most immediate practical aspect: shipping, transportation, commerce, and war have depended upon our knowledge, when we had it, and floundered on our surprising ignorance more often than we wish to reflect. These important practical issues have commanded attention from commercial, academic, and military research scientists and engineers from the earliest era of organized scientific investigation. The matter of direct and insistent investigation was from the outset the behavior of ocean currents with long time scales; namely, those varying on annual or at least seasonal cycles. Planning for all the named enterprises depended, as they still do, of course, on the ability to predict with some certainty this class of phenomena. That ability, as with most physical sci ence, is predicated on a firm basis of observational fact to establish what, amorig the myriad of mathematical possibilities, is chosen by Nature as her expression of fact.
Observations made during the 1990s and 2000s indicate that the Arctic physical environment and associated ecosystem are undergoing remarkable changes. The observed reduction in Arctic sea ice extent is arguably the strongest, most powerful visual symbol of climate change. The Arctic Ocean is changing as well. Here we discuss, from an observational point of view, the present understanding of the circulation, water masses, and stratification of the Arctic Ocean, highlighting the changes that have taken place during the past few decades. Many of these ocean signals evolve rapidly, making it essential that the state of the Arctic/Subarctic is observed continually, using all the recent advances that have been made in high-latitude monitoring and in Earth System understanding. Taking recent investigations of the Arctic atmosphere and sea ice as guides, we deem it likely that signatures of anthropogenic climate change in the Arctic/Subarctic Seas will begin to emerge above the high level of natural variability within the next decade.