|
Books > Earth & environment > Earth sciences > The hydrosphere > Oceanography (seas)
Observational and numerical modelling studies of the hydrodynamics,
sediment transport, and light extinction were undertaken in the
marine environment around Cape Bolinao in the Lingayen Gulf (NW
Philippines). This text reports on the results of these studies,
and offers conclusions.
Because of its centrallocation in the Old World, the Adriatic Sea
has long been explored and studied. Modern methods of
investigation, however, have accelerated the pace of study during
the last decade. These are the ADCP currentmeter, satellite
imagery, drifter technology, and, last but not least, the computer
with its arsenal of tools for data analysis and model simulations.
As a result of this renaissance, the Adriatic Sea and its
sub-basins are currently the object of intensified scrutiny by a
number of scientific teams, in Europe and be yond. Questions
concerning the mesoscale variability that dominates regional
motions, the seasonal circulation of the sea, and its long-term
climatic role in the broader Mediterranean, have become topics of
lively discussions. The time was ripe then when an international
workshop dedicated to the physical oceanography of the Adriatic Sea
was convened in Trieste on 21-25 September 1998. Its objectives
were to assess the current knowledge of the oceanography of the
Adriatic Sea, to review the newly acquired observations, to create
syn ergy between model simulations and observations, and to
identify directions for future Adriatic oceanography. This book,
however,is not the mere proceedings of the workshop. It was written
as a monograph synthetizing the current knowledge of the physical
oceanography of the Adriatic Sea, with the hope that it will serve
as a reference to anyone interested in the Adriatic. The book also
identifies topics in need of additional inquiry and proposes
research directions for the next decade.
This book focuses, in seven chapters, on the perspectives and
solutions that different research groups offer to try to address
problems related to SDG 14: Life Below Water. The different
objectives developed in SDG 14 are treated independently, with an
attempt to give a global vision of the issues. The mechanism used
to select the book's content was through an Artificial Intelligence
program, choosing articles related to the topics by means of
keywords. The program selected those articles, and those that were
not related to the topic or did not focus on SDG 14 were discarded
by a subject matter expert. Obviously, the selection was partial
and the entire subject is not covered, but the final product gives
a very solid idea of how to orient ourselves to delve deeper into
the topic of SDG 14 using published chapters and articles. The AI
program itself selected the text of these contributions to show the
progress in different topics related to SDG 14. This mode of
operation will allow specialists (and non-specialists) to collect
useful information for their specific research purposes in a short
period of time. At a time when information is essential in order to
move quickly by providing concrete answers to complex problems,
this type of approach will become essential for researchers,
especially for a subject as vast as SDG 14.
This work addresses the whole range of problems relating to the
application of satellite technology to studies of regional seas and
sea phenomona - the Gulf Stream, the Kuroshia Current - and coastal
zones. It argues that to emphasize global applications is to fail
to take into account fundamental idiosyncracies specific to the
regional perspective. In addition, it describes implementation
techniques - data gathering; in situ data assurance, algorithms for
parameter retrieval; data storage; and data output.; The book
contains satellite imagery and incorporates case studies from areas
such as the Baltic and the Black Sea.
The development of ocean sensors remains a ripe area for future
investigation from science, policy and systemsengineering
standpoints. Clearly, there are many options forrealizing
integrated molecular analytical sensing systems. The definition of
key target molecules, detection methodsand signal transduction
models largely remain to be determined.Moreover, there remains
ahuge challenge of merging this new class of instrument with
different deployment platforms, and supplying necessarypower and
data telemetry infrastructure for their operation. Molecular
Biological Technologies for Ocean Sensing features methods papers
on the application of ecogenomic sensors on autonomous platforms in
the ocean. Topics include the use of ecogenomic sensors as a tool
in whole-cell and cell-free based detection and monitoring a suite
of pathogens and biotoxins that are of public health concern;
documenting species diversity, evolution and metabolic function;
identification and quantification of aquatic organisms; and
inferring metabolic potential and activities of microorganisms in
the ocean. Each contribution focuses on the (1) functional
requirements for detecting specific microorganisms and the genes
that they harbor and express;(2) examples of research activities
that take advantage of molecular detection technologies;(3) some of
the challenges faced when projecting development and use of novel
instruments that will utilize molecular techniques onboard
autonomous platforms;and future directions. Bringing these
advancements on autonomous platforms, monitoring required sample
collection and processing schemes will differ from those currently
used (i.e. biomedical diagnostics). This book is the first of its
kind to compile current technologies for studying organisms in
situ. It will aid in transfer technology to oceanographers,
ecologists, microbiologists, and environmental scientists with
needs for a remote, in-water sensing capability and for integration
with larger scale observatory operations. With this network in
place, there is a potential to bridge the gap among regulatory
agencies and academics about how this kind of technology can be
used for research and monitoring purposes.
Dead-Reckoning aided with Doppler velocity measurement has been the
most common method for underwater navigation for small vehicles.
Unfortunately DR requires frequent position recalibrations and
underwater vehicle navigation systems are limited to periodic
position update when they surface. Finally standard Global
Positioning System (GPS) receivers are unable to provide the rate
or precision required when used on a small vessel. To overcome
this, a low cost high rate motion measurement system for an
Unmanned Surface Vehicle (USV) with underwater and oceanographic
purposes is proposed. The proposed onboard system for the USV
consists of an Inertial Measurement Unit (IMU) with accelerometers
and rate gyros, a GPS receiver, a flux-gate compass, a roll and
tilt sensor and an ADCP. Interfacing all the sensors proved rather
challenging because of their different characteristics. The
proposed data fusion technique integrates the sensors and develops
an embeddable software package, using real time data fusion
methods, for a USV to aid in navigation and control as well as
controlling an onboard Acoustic Doppler Current Profiler (ADCP).
While ADCPs non-intrusively measure water flow, the vessel motion
needs to be removed to analyze the data and the system developed
provides the motion measurements and processing to accomplish this
task.
Research on historical earthquakes and tsunamis in the Iberian
Peninsula has made great strides in recent years, from diverse
scientific fields ranging from geology to archaeology. In addition
to the famous earthquake and tsunami of 1755, which intensely
affected the peninsula, researchers are conducting a growing number
of surveys and case studies on seismic episodes and extreme wave
events of possible tsunamigenic origin in Portugal and Spain during
the ancient, medieval, and modern eras. However, the development of
these studies has suffered due to a certain lack of communication
among the different fields of research, which are focused on their
own methodologies and interests. The aim of this book is to promote
interdisciplinary dialogue by linking the results of the most
recent research into historical earthquakes and tsunamis in Iberia
from the fields of geology, history and archaeology. The volume,
which devotes special attention to tsunamis and to events that
occurred in the Iberian Peninsula before 1755, offers synthetic
insights, updates, and case studies of maximum interest for
knowledge of the historical seismology of Portugal and Spain.
Arising out of the Third International Symposium held in New
Jersey, this book represents the state-of-the-art in ocean
management. An international group of contributors cover such
topics as: regional seas and embayments; new concepts in the
governance of ocean space assessment standards and issues; ocean
resources and sustainable development; ocean space development; and
related technologies. From the Baltic to the Caribbean, from the
Adriatic to the Atlantic, the problems of ocean management are
fully discussed, and proposals made to meet the challenges of the
next decade. This book should be of interest and use to anyone
working in coastal and ocean management.
Four years have elapsed since the preparation of the original
Russian version of this book. This is a long time when dealing with
such actively expanding fields of oceanography as research into
small-scale structures and the investigation of hydro physical
processes. Over this period new quick-response devices have been
developed and successfully used for measurements taken in various
ocean areas. Improvements in high-frequency meters used to measure
hydrophysical parameters has enabled workers to obtain more
accurate absolute values of the fluctuations measured by such
devices. In view of this scientific progress, some of the ideas
presented in this book now require additional explanation. Great
care should be used in dealing with the absolute fluctuation values
of hydro physical fields, since the methods used for the
determination of the accuracy of the high-frequency measuring
devices have been imperfect in the past. Never theless, it would
appear that the results of the investigations summarized in this
book have not lost their importance, and that the established laws
governing small-scale pro cesses in the ocean are of a sufficiently
universal nature and, as such, have not been shattered with the
qualitative and quantitative advances in devices used for
measurements taken in oceans. The authors feel that their work is
of interest to English-speaking readers. The appearance of the
English translation of the book is, to a very large extent, due to
the tremendous amount of editing work brilliantly done by Prof. H.
Tennekes."
This book demonstrates various types of deepwater risers with
different motion equations and boundary conditions depending on
their different structural configurations. It also discusses the
hydrodynamic analysis methods of different deepwater risers. It
provides new force and structure models in time and frequency
domains of vortex induced force, including that for a downstream
riser of the tandem riser, and the rigid oscillating model for
steel catenary riser. The highlights of this book are the analysis
methods of the rigid oscillating mode of steel catenary riser and
the coupling iteration for top-tensioned riser with pipe-in-pipe
configuration. This book is interesting and useful to a wide
readership in the various fields of ocean engineering and offshore
oil & gas development.
This book contains articles by oceanographic researchers from the
(former) USSR and presents new data on various aspects of the Black
Sea. The topics include Black Sea thermohaline, hydrochemical and
optical structures, the dynamics of the Main Black Sea current and
deep layers, wave phenomena in shelf areas and modelling of complex
marine systems. Aslo included are some experimentally derived
results which allow a deeper insight into the problem of O2 and H2S
coexistence in the Black Sea. The commonplace notions about the
structure of the oxic/anoxic interface are critically evaluated.
The last two decades have seen unprecedented developments in marine
science and technology. Large scale, international long-term
scientific programmes have emerged for monitoring the state of the
ocean environment and the rapid development of the offshore oil
industry has provided the technological means for a range of other
maritime developments. The purpose of this book is to review key
developments in this field. Three major themes are developed
throughout the book: the key importance of technical developments
in ocean management; the application of these developments to
specific sea uses ranging from fish farming to the deep sea
disposal of industrial waste; and the long term general issues
raised - and to some extent solved - by science and technology.
This book should be of interest to students and professionals
involved in maritime studies, oceanography, offshore engineering
and environmental science.
International Marine Mammal Law is a comprehensive, introductory
volume on the legal regimes governing the conservation and
utilisation of marine mammals. Written as a textbook, it provides
basic overviews of international conservation law, which enable the
reader to understand the greater implications of governance of a
specific group of species. Paired with biological information on
some marine mammal species, the international regimes for whales,
seals and polar bears are explored - either as part of global
regimes of international environmental governance or as regimes
that were specifically designed for them. The book concludes with
outlooks on the future of international marine mammal law,
particularly in light of Japan's withdrawal from the International
Convention for the Regulation of Whaling in July 2019.
This seminal book results from a NATO Advanced Research Workshop
at the University of Cambridge with Russian co-directorship,
enabling the first formal dialogue between NATO and Russia about
security issues in the Arctic Ocean. Involvinginterdisciplinary
participation withexperts from 17 nations, including all of the
Arctic states, this workshop itself reflects progress in Arctic
cooperation and collaboration. Interests now are awakening globally
to take advantage ofextensive energy, shipping, fishing and tourism
opportunities in theArctic Oceanas it is being transformed from a
permanent sea-ice capto a seasonally ice-free sea. This
environmental state-changeis introducing inherent risks of
political, economic and cultural instabilities that are centralized
among the Arctic states and indigenous peoples with repercussions
globally. Responding with urgency, environmental security is
presented asan" "integrated approach for assessing and responding
to the risks as well as the opportunities generated by an
environmental state-change."" In this book diverse perspectives on
environmental security in the Arctic Ocean are shared in chapters
from high-level diplomats, parliamentarians and government
officials of Arctic and non-Arctic states; leaders of Arctic
indigenous peoples organizations; international law advisors from
Arctic states as well as the United Nations; directors of
inter-governmental organizations and non-governmental
organizations; managers of multi-national corporations; political
scientists, historians and economists; along with Earth system
scientists and oceanographers. Building on the" common arctic
issues " of " sustainable development and environmental protection
" established by the Arctic Council environmental securityoffers an
holistic approachto assess opportunities and risks as well as
developinfrastructure responses with law of the sea as the key"
international legal framework " to " promote the peaceful uses " of
the Arctic Ocean. With vision for future generations, environmental
security is a path to balance national interests and common
interests in the Arctic Ocean for the lasting benefit of all."
In this book, the methodology of dynamical systems theory is
applied to investigate the physics of the global ocean circulation.
Topics include the dynamics of the Gulf Stream in the Atlantic
Ocean, the stability of the thermohaline circulation and the El
NiAo/Southern Oscillation phenomenon in the Tropical Pacific. On
the other hand, the book also deals with the numerical methods for
applying bifurcation analysis on large dimensional dynamical
systems, with thousands or more degrees of freedom, which arise
through discretization of ocean models. The novel approach in
understanding the phenomena of climate variability is through a
systematic analysis within a hierarchy of models using these
techniques. In this way, a nice overview is obtained of the
relations between the results of the different models within the
hierarchy. Mechanistic description of the physics of the results is
provided and, where possible, links with results of
state-of-the-art models and observations are sought. The reader is
expected to have a background in basic incompressible fluid
dynamics and applied mathematics, although the level of the text is
mixed and sometimes quite introductory. Each chapter is rather
self-contained and many details of derivations are provided. The
book is aimed at graduate students and researchers in meteorology,
oceanography, and related fields who are interested in tackling
fundamental problems in dynamical oceanography and climate
dynamics.
This book provides contributions from leading experts on the
integration of novel sensing technologies to yield unprecedented
observations of coupled biological, chemical, and physical
processes in the ocean from the macro to micro scale. Authoritative
entries from experts around the globe provide first-hand
information for oceanographers and researchers looking for
solutions to measurement problems. Ocean observational techniques
have seen rapid advances in the last few years and this book
addresses the need for a single overview of present and future
trends in near real time and real time. First the past, present and
future scenarios of ocean observational tools and techniques are
elucidated. Then this book divides into three modes of ocean
observations: surface, upper ocean and deep ocean. This is followed
by data quality and modelling. Collecting a summary of methods and
applications, this book provides first-hand information for
oceanographers and researchers looking for solutions to measurement
problems. This book is also suitable for final year undergraduate
students or beginning graduate students in ocean engineering,
oceanography and various other engineering students (such as
Mechanical, Civil, Electrical, and Bioengineering) who are
interested in specializing their skills towards modern measurements
of the ocean.
This book is a sequel to 'Deep-Sea Mining: Resource Potential,
Technical and Environmental Considerations' (2017) and
'Environmental Issues of Deep-Sea Mining: Impacts, Consequences and
Policy Perspectives' (2019), and aims to provide a comprehensive
volume on different perspectives of deep-sea mining from
specialists around the world. The work is timely, as deep-sea
minerals continue to enthuse researchers involved in activities
such as ascertaining their potential as alternative sources for
critical metals for green energy and other industrial applications,
as well as technology development for their sustainable exploration
and exploitation, while addressing environmental concerns. With a
steady increase in the number of contractors having exclusive
rights over large tracts of seafloor in the 'Area', i.e. area
beyond national jurisdictions, the International Seabed Authority,
mandated with the responsibility of regulating such activities, is
in the process of developing a code for exploitation of deep-sea
minerals. These, coupled with growing interest among private
entrepreneurs, investment companies and policy makers, underscore
the need for updated information to be made available in one place
on the subject of deep-sea mining. The book evaluates the potential
and sustainability of mining for deep-sea minerals compared to
other land-based deposits, the technologies needed for mining and
processing of ores, the approach towards environmental monitoring
and management, as well as the regulatory frameworks and legal
challenges to manage deep-sea mining activities. The book is
expected to serve as an important reference for all stakeholders
including researchers, contractors, mining companies, regulators
and NGOs involved in deep-sea mining.
An octopus expert and celebrated artist offer a deep dive to meet
the enchanting inhabitants of the world's marine ecosystems. Have
you ever walked along the beach and wondered what kind of creatures
can be found beneath the waves? Have you pictured what it would be
like to see the ocean not from the shore, but from its depths?
These questions drive Janet Voight, an expert on mollusks who has
explored the seas in the submersible Alivn that can dive some
14,000 feet below the water's surface. In this book, she partners
with artist Peggy Macnamara to invite readers to share her undersea
journeys of discovery. With accessible scientific description,
Voight introduces the animals that inhabit rocky and sandy shores,
explains the fragility of coral reefs, and honors the extraordinary
creatures that must search for food in the ocean's depths, where
light and heat are rare. These fascinating insights are accompanied
by Macnamara's stunning watercolors, illuminating these ecosystems
and other scenes from Voight's research. Together, they show
connections between life at every depth-and warn of the threats
these beguiling places and their eccentric denizens face.
This book provides an integrated view of Atlantic coastal
Patagonian ecosystems, including the physical environment,
biodiversity and the main ecological processes, together with their
derived ecosystem services and anthropogenic impacts. It focuses on
the key components of the aquatic ecosystem, covering the lower
levels (plankton) to the top predators like large mammals and
birds, before turning to human beings as consumers and shapers of
coastal marine resources. The book then presents an overview of how
organisms that constitute the aquatic food webs have changed
through time and how they likely will soon change due to global
change processes and anthropogenic pressures. In this regard it
offers a wealth of information such as long-term patterns in
physical / atmospheric processes, biodiversity and the distribution
of marine organisms, as well as the results of experimental studies
designed to understand their responses under future scenarios
shaped by both climate change and anthropogenic pressures. The book
also covers various aspects of the past, present and potential
future relationship of human beings with Patagonian coastal
environments, including the utilization of sea products, tourism,
and growth of cities.
The world's oceans cover 70% of the earth's surface and are home to
a myriad of amazing and beautiful creatures. However, the
biodiversity of the oceans is incre- ingly coming under serious
threat from many human activities including overfi- ing, use of
destructive fishing methods, pollution and commercial aquaculture.
In addition, climate change is already having an impact on some
marine ecosystems. This book discusses some of the major threats
facing marine ecosystems by cons- ering a range of topics, under
chapters discussing biodiversity (Chapter 1), fisheries (Chapter
2), aquaculture (Chapter 3), pollution (Chapter 4) and the impacts
of increasing greenhouse gas emissions (Chapter 5). It goes on to
explore solutions to the problems by discussing equitable and
sustainable management of the oceans (Chapter 6) and protecting
marine ecosystems using marine reserves (Chapter 7). Presently, 76%
of the oceans are fully or over-exploited with respect to fishing,
and many species have been severely depleted. It is abundantly
clear that, in general, current fisheries management regimes are to
blame for much of the widespread degradation of the oceans. Many
policy-makers and scientists now agree that we must adopt a radical
new approach to managing the seas - one that is precautionary in
nature and has protection of the whole marine ecosystem as its
primary objective. This 'ecosystem-based approach' is vital if we
are to ensure the health of our oceans for future generations.
|
|