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Measuring Ocean Currents

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Measuring Ocean Currents

Measuring Ocean Currents Book
Author : Antony Joseph
Publisher : Newnes
Release : 2013-08-12
ISBN : 0123914280
Language : En, Es, Fr & De

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Book Description :

Measuring Ocean Currents: Tools, Technologies, and Data covers all major aspects of ocean current measurements in view of the implications of ocean currents on changing climate, increasing pollution levels, and offshore engineering activities. Although more than 70% of the Earth is covered by ocean, there is limited information on the countless fine- to large-scale water motions taking place within them. This book fills that information gap as the first work that summarizes the state-of-the-art methods and instruments used for surface, subsurface, and abyssal ocean current measurements. Readers of this book will find a wealth of information on Lagrangian measurements, horizontal mapping, imaging, Eulerian measurements, and vertical profiling techniques. In addition, the book describes modern technologies for remote measurement of ocean currents and their signatures, including HF Doppler radar systems, satellite-borne sensors, ocean acoustic tomography, and more. Crucial aspects of ocean currents are described in detail as well, including dispersion of effluents discharged into the sea and transport of beneficial materials—as well as environmentally hazardous materials—from one region to another. The book highlights several important practical applications, showing how measurements relate to climate change and pollution levels, how they affect coastal and offshore engineering activities, and how they can aid in tsunami detection. Coverage of measurement, mapping and profiling techniques Descriptions of technologies for remote measurement of ocean currents and their signatures Reviews crucial aspects of ocean currents, including special emphasis on the planet-spanning thermohaline circulation, known as the ocean's "conveyor belt," and its crucial role in climate change

Ocean Currents

Ocean Currents Book
Author : Anonim
Publisher : Elsevier
Release : 2014-05-14
ISBN : 9780080870403
Language : En, Es, Fr & De

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Ocean Currents

Instrumentation for Measuring Ocean Currents

Instrumentation for Measuring Ocean Currents Book
Author : William E. Woodward
Publisher : Unknown
Release : 1971
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Instrumentation for Measuring Ocean Currents book written by William E. Woodward, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Ocean Currents

Ocean Currents Book
Author : Robert Marsh,Erik van Sebille
Publisher : Elsevier
Release : 2021-06-30
ISBN : 0128160608
Language : En, Es, Fr & De

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Book Description :

Ocean Currents: Physical Drivers in a Changing World opens with a general introduction to the character, measurement, and simulation of ocean currents, leading to a physical and dynamical framework for understanding the wide variety of flows encountered in the oceans. The book comprises chapters covering distinct aspects of contrasting ocean currents: broad and slow, deep and shallow, narrow and swift, large scale and small scale, low latitudes and high latitudes, and moving in horizontal and vertical planes. Through this approach the authors cover a wide range of applications, from local to global, with considerable geographical context. Provides analyses of ocean observations and numerical model simulations, highlighting the pathways and drift associated with ocean currents, around the World Ocean, linked to online exercises for instructors and students that extend this perspective Presents applications to natural phenomena, showing how ocean currents shape marine ecosystems, helping researchers understand the distribution and adaptation of life in the oceans Addresses societal challenges, specifically how ocean currents disperse pollutants (e.g. plastic) from coastal sources and how the global ocean circulation is central to our changing climate, helping students and researchers develop an interdisciplinary approach to global environmental change

Lagrangian Analysis and Prediction of Coastal and Ocean Dynamics

Lagrangian Analysis and Prediction of Coastal and Ocean Dynamics Book
Author : Annalisa Griffa,A. D. Kirwan, Jr.,Arthur J. Mariano,Tamay Özgökmen,H. Thomas Rossby
Publisher : Cambridge University Press
Release : 2007-05-10
ISBN : 113946308X
Language : En, Es, Fr & De

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Book Description :

Written by a group of international experts in their field, this book is a review of Lagrangian observation, analysis and assimilation methods in physical and biological oceanography. This multidisciplinary text presents new results on nonlinear analysis of Lagrangian dynamics, the prediction of particle trajectories, and Lagrangian stochastic models. It includes historical information, up-to-date developments, and speculation on future developments in Lagrangian-based observations, analysis, and modeling of physical and biological systems. Containing contributions from experimentalists, theoreticians, and modellers in the fields of physical oceanography, marine biology, mathematics, and meteorology, this book will be of great interest to researchers and graduate students looking for both practical applications and information on the theory of transport and dispersion in physical systems, biological modelling, and data assimilation.

Measurements of Ocean Currents

Measurements of Ocean Currents Book
Author : L.M. Fomin
Publisher : Unknown
Release : 1989
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Measurements of Ocean Currents book written by L.M. Fomin, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Real time Measurement of Wide area Near surface Ocean Current

Real time Measurement of Wide area Near surface Ocean Current Book
Author : Samareh Attarsharghi
Publisher : Unknown
Release : 2017
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Of all of the physical parameters of the ocean realm, the speed and direction of the movement of ocean water, otherwise referred to as ocean "current," is one of the most problematic to characterize. Currents influence the global climate, used for producing power, are crucial in determining the oil spill trajectories and ocean contaminant control, can either work against or with the movement of ships at sea and govern the movements of icebergs. Icebergs are a threat to offshore industries and marine transportations, particularly in places like the Northwest Atlantic, because of damages they can cause once they strike the oil platforms or ship hulls. They are steered by the near-surface current and not the surface current. Therefore, measurment of the real-time ocean currents at desired depths is valuable for the industries or researchers who are dealing with or studying the oceanographic data. Ocean current measurment methods that are currently being employed for ocean monitorings, are not able to measure the real-time current at certain desired depths over a larg area of the ocean. Thus, the existing current measurement methods need improvements. Limitations of the existing methods are as follows. Acoustic dopler current profilers (ADCP), are one of the most popular methods employed by most of the industries dealing with the oceanograghy. ADCPs are capable of measuring the current at any desired depth; however, their measurement method is of a point nature and they cannot measure an area averaged current data. Other techniques such as high frequency radio detecting and ranging systems (HF-RADAR) are also used to measure the surface currents (down to 15 m). These shore-based current meters with radio antenna, follow the same premise of the ADCP. In other words their measurement is dependant on the Doppler effect to determine the direction and velocity of the currents; however, they are capable of evaluating only the surface currents and not the near-surface currents (70-100 meter of depth is considered in this thesis as this is the depth oil structures are deployed in the Northwest Atlantic Ocean). Another group of instruments used for current measurement are floats and drifters which report their data to a centre device which is usually a satelite. The current data obtained with these instruments are fed into modeling systems, e.g. in (Chassignet, Hurlburt et al. 2006), for the ocean forcasting. The problems that exist with the available real-time current data from the satelite is that it is the very shallow current data (down to 15m that can be called surface). The data from other devices like floats is very sparse to include the horizontal information. Hence, Chassignet et al. use data assimilation of the past knowledge and ocean dynamics in order to predict the ocean features. Therefore, it is important to develop a method by which adequate data could be provided for the ocean prediction and modeling system. Thus, the focus of this thesis is on designing a method which is real-time and measures the near-surface current. On the other hand, energy suplies to the instruments in open water is limited as they work mainly rely on batteries and it is difficult to access the instruments in harsh condition to replace the batteries. Moreover, in cold regions the solar power is very limitted and thus using solar cells is not practical. Therefore, in order to measure the ocean current in real time, a novel method along with a sustainable architechture design is being proposed in this dissertation. The new method is based on transit time with the difference that in transit time method waves need to travel in both directions; up- and down-stream. But with a modification in the newly designed architecture; which is adding an extra node in the center of the network's cells, sound waves need to travel on only one direction. This helps with saving a great amount of energy and covering a larger area in comparison with the networks which are developed using transit time method. Experimental results as well as simulations verify that the new proposed method is both efficient and practical.

Measuring the Oceans from Space

Measuring the Oceans from Space Book
Author : Ian S. Robinson
Publisher : Springer Science & Business Media
Release : 2004-06-30
ISBN : 9783540426479
Language : En, Es, Fr & De

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Book Description :

This book covers the fundamental principles of measuring oceans from space, and also contains state-of-the-art developments in data analysis and interpretation and in sensors. Completely new will be material covering advances in oceanography that have grown out of remote sensing, including some of the global applications of the data. The variety of applications of remotely sensed data to ocean science has grown significantly and new areas of science are emerging to exploit the gobal datasets being recovered by satellites, particularly in relation to climate and climate change, basin-scale, air-sea interaction processes (e.g. El Nino) and the modelling, forecasting and prediction of the ocean.

Collected Reprints

Collected Reprints Book
Author : Anonim
Publisher : Unknown
Release : 1978
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports Book
Author : Anonim
Publisher : Unknown
Release : 1981
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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Proceedings of the IEEE Working Conference on Current Measurement

Proceedings of the IEEE     Working Conference on Current Measurement Book
Author : Anonim
Publisher : Unknown
Release : 1986
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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OCEANOGRAPHY Volume III

OCEANOGRAPHY    Volume III Book
Author : Chen-Tung Arthur Chen,Jacques C. J. Nihoul
Publisher : EOLSS Publications
Release : 2009-04-16
ISBN : 1905839642
Language : En, Es, Fr & De

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Book Description :

Oceanography is a component of Encyclopedia of Earth and Atmospheric Sciences in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. These volumes deal with the oceans as an integrated dynamic system, characterized by a delicate, complex system of interactions among the biota, the ocean boundaries with the solid earth and the atmosphere. This set of volumes is designed to be a very authoritative reference for state-of-the-art knowledge on the various aspects such as: Physical Oceanography, Chemistry of the oceans, Biological Oceanography, Geological oceanography, Coral Reefs as a Life Supporting System, Human Uses of the Oceans, Ocean Engineering, and Modeling the Ocean System from a Sustainable Development perspective. These volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.

Atlantic Water in the Nordic Seas

Atlantic Water in the Nordic Seas Book
Author : Waldemar Walczowski
Publisher : Springer Science & Business Media
Release : 2013-11-19
ISBN : 3319012797
Language : En, Es, Fr & De

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Book Description :

The book presents a wide description of hydrographic conditions in the studied area of the Norwegian and Greenland Seas. Variability of the Atlantic Water properties have been presented on the basis of time series obtained from oceanographic measurements performed each summer from 2000 to 2007 by the Institute of Oceanology Polish Academy of Sciences. The warming observed in that period has been described in detail as well as cooling of the Atlantic Water flowing towards the Fram Strait in 2007. Furthermore, concepts regarding multi-branch structure of the West Spitsbergen Current have been presented, types of flows in individual branches as well as variability of the flows. Description of the structure, transports and variability of the sea currents is based mostly on hydrographic measurements and baroclinic calculations. The results confirm a leading role of the ocean in climate shaping and acknowledges the importance of the Thermohaline Circulation for the climate.

NASA Oceanic Processes Program

NASA Oceanic Processes Program Book
Author : Anonim
Publisher : Unknown
Release : 1988
ISBN : 0987650XXX
Language : En, Es, Fr & De

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A Thin Film Thermal Sensor for Measuring Ocean Currents

A Thin Film Thermal Sensor for Measuring Ocean Currents Book
Author : T. R. Kretschmer,A. P. Smith,B. C. Streets,CIVIL ENGINEERING LAB (NAVY) PORT HUENEME CA.
Publisher : Unknown
Release : 1979
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

A thin film thermal sensor is being developed to improve U.S. Navy capabilities for measuring ocean current profiles. Using the sensor, current velocity is determined by measuring the resistance changes in each of four platinum films positioned on the surface of the cylindrical sensor substrate. Development of this device into a practical ocean-going tool has involved overcoming substrate fragility, water leakage problems, and biofouling contamination. A high-strength ceramic substrate has been selected to improve ruggedness. New coating systems to prevent water penetration into the sensor are being developed and evaluated. An electrolytic hypochlorite generation technique has been developed to prevent biofouling indefinitely on the sensor surface. Tests have shown the sensor produces repeatable results in the laboratory and agrees well with commercial current meter measurements during ocean testing. (Author).

Encyclopedia of Microcomputers

Encyclopedia of Microcomputers Book
Author : Allen Kent,James G. Williams
Publisher : CRC Press
Release : 1999-10-29
ISBN : 9780824727222
Language : En, Es, Fr & De

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Book Description :

This encyclopaedia covers Characterization Hierarchy Containing Augmented Characterizations to Video Compression.

Ocean Mixing

Ocean Mixing Book
Author : Michael Meredith,Alberto Naveira Garabato
Publisher : Elsevier
Release : 2021-09-16
ISBN : 0128215135
Language : En, Es, Fr & De

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Book Description :

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

Oceanography from Space Proposed measurements and missions

Oceanography from Space  Proposed measurements and missions Book
Author : Anonim
Publisher : Unknown
Release : 1984
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Indirectly Heated Thermistor for Measuring Ocean Currents

Indirectly Heated Thermistor for Measuring Ocean Currents Book
Author : D. R. Caldwell
Publisher : Unknown
Release : 1968
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Indirectly Heated Thermistor for Measuring Ocean Currents book written by D. R. Caldwell, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Under the Ocean

Under the Ocean Book
Author : Louise Spilsbury,Richard Spilsbury
Publisher : Gareth Stevens Publishing LLLP
Release : 2016-12-15
ISBN : 1482459914
Language : En, Es, Fr & De

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Book Description :

Scientists estimate that less than 5 percent of the ocean has been explored. That leaves a lot to be discovered—and a large amount of people needed to make those discoveries. Readers dive deep into the research being done under the ocean and the many STEM career possibilities for those interested in such research. Full-color photographs of the latest technology and scientists at work show readers an exciting world they can be part of. In addition, the main content discusses many STEM topics related to the ocean, including habitats, biodiversity, pollution, and climate change.