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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Book Description
Objectives of this research were 1) to compare internal waves and mixing at shallow (100 m) and intermediate (500 m) depths, 2) to relate internal wave variability to changes in local winds, and 3) to observe how internal waves and mixing evolve between the basin and plateau, meaning the deep Cretan Sea and the Cyclidic Plateau. To obtain moored internal wave records of several months we deployed four moorings, three McLane Moored Profilers (MPs) and two ADCPs. Results observed included 1) shallow depths were mostly in the pycnocline and consequently have much larger dissipation rates than weakly stratified deep water, 2) mixing increased with increases in wind stress accompanying the rapid transition from summer to autumnal weather, and 3) internal waves were dominated by the internal tide, apparently generated along the upper part of the slope. Closely confined near the bathymetry, detectable mixing was very weak and intermittent in deeper water.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Book Description
Objectives of this research were 1) to compare internal waves and mixing at shallow (100 m) and intermediate (500 m) depths, 2) to relate internal wave variability to changes in local winds, and 3) to observe how internal waves and mixing evolve between the basin and plateau, meaning the deep Cretan Sea and the Cyclidic Plateau. To obtain moored internal wave records of several months we deployed four moorings, three McLane Moored Profilers (MPs) and two ADCPs. Results observed included 1) shallow depths were mostly in the pycnocline and consequently have much larger dissipation rates than weakly stratified deep water, 2) mixing increased with increases in wind stress accompanying the rapid transition from summer to autumnal weather, and 3) internal waves were dominated by the internal tide, apparently generated along the upper part of the slope. Closely confined near the bathymetry, detectable mixing was very weak and intermittent in deeper water.
Author: Stanisław R. Massel
Publisher: Springer
ISBN: 3319189085
Category : Science
Languages : en
Pages : 175
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Book Description
This book contains a comprehensive study of the internal ocean waves, which play a very important role in ocean physics providing mechanisms for ocean water mixing and circulation, as well as the transportation of gases, nutrients, and a very large number of marine organisms in the ocean body. In contrast to surface waves, the literature on internal waves is not so numerous, mainly due to the difficulties in experimental data collection and in the mathematical description of internal wave propagation. In this book, the basic mathematical principles, a physical description of the observed phenomena, and practical theoretical methods of determination of wave parameters as well as the original method of observation using moving sensors are presented. Special attention is paid to internal wave propagation over changing bottom topographies in shallow seas such as the Baltic Sea. The book is supplemented with an extended list of relevant and extended bibliographies, a subject index, and an author index.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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Book Description
Our objective was to understand how upper ocean processes, such as internal waves, seasonal-to-interannual variations of the circulation, eddy variability, SST, and wind forcing in the Aegean Sea affect mixing and temperature in the upper ocean. An analysis of modeled and observed sea surface temperatures was submitted to the Journal of Geophysical Research - Oceans in October 2006 and is under review (abstract below). In addition, comparisons between the buoy winds and QuikSCAT in the Aegean Sea were used to optimize a mapping, algorithm for the new higher-resolution (12.5 km) QuikSCAT winds. A relevant finding is that, for daily-averaged winds, mapped QuikSCAT winds are as accurate as an anemometer at about 100 km from a given location. This analysis is being incorporated in a manuscript describing the mapping algorithm and its verification in a manuscript in preparation.
Author: Michael C. Gregg
Publisher: Cambridge University Press
ISBN: 1107173809
Category : Science
Languages : en
Pages : 385
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Book Description
This book examines how large-scale processes drive centimetre-scale mixing throughout the stratified ocean. It explores the primary factors affecting mixing and turbulence, and reviews insights from laboratory studies and numerical modelling. It is an excellent reference for researchers and graduate students in oceanography and related fields.
Author: Owen S. Lee
Publisher:
ISBN:
Category : Internal waves
Languages : en
Pages : 64
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Book Description
Internal waves exist in the ocean as a rule rather than an exception. Energy is transported by them in channels that are similar to sound channels. Their effect on naval exercises and equipment, particularly functions involving the use of underwater sound, can be expected to be more pronounced in these channels. Although theory and observation are still not adequate for a full understanding of the phenomenon, western literature prior to June 1963 contains more than 300 publications dealing with internal waves in the atmosphere, lakes, and seas. These publications are listed in the comprehensive bibliography which is part of this report. (Author).
Author: Christos L. Anagnostou
Publisher: Springer Nature
ISBN: 3031537971
Category :
Languages : en
Pages : 400
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Author: Eugene G. Morozov
Publisher: Springer
ISBN: 3319731599
Category : Science
Languages : en
Pages : 317
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Book Description
This book presents a detailed study of the structure and variability of internal tides and their geographical distribution in the ocean. Based on experimental analysis of oceanic measurements combined with numerical modeling, it offers a comprehensive overview of the internal wave processes around the globe. In particular, it is based on moored buoys observations in many regions in all oceans (Atlantic, Pacific, Indian, Arctic, and Southern) that have been carried out by researchers from different countries for more than 40 years as part of various oceanographic programs, including WOCE and CLIVAR. However, a significant portion of the data was collected by the author, who is a field oceanographer. The data was processed and interpreted on the basis of the latest knowledge of internal wave motion. The properties of internal waves were analyzed in relation to the bottom topography and mean state of the ocean in specific regions. Internal waves play a major role in the formation of seawater stratification and are responsible for the main processes of ocean dynamics, such as energy transfer and mixing. One of the most significant ideas presented in this book is the generation of internal tides over submarine ridges. Energy fluxes from submarine ridges related to tidal internal waves greatly exceed the fluxes from continental slopes. Submarine ridges form an obstacle to the propagation of tidal currents, which can cause the creation of large amplitude internal tides. Energy fluxes from submarine ridges account for approximately one fourth of the total energy dissipation of the barotropic tides. Model simulations and moored measurements have been combined to generate a map of global distribution of internal tide amplitudes. This book is of interest to oceanographers, marine biologists, civil engineers, and scientists working in climate research, fluid mechanics, acoustics, and underwater navigation.
Author: L. H. Larsen
Publisher:
ISBN:
Category : Internal waves
Languages : en
Pages : 23
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Author: Marek Stastna
Publisher: Springer Nature
ISBN: 3030992101
Category : Mathematics
Languages : en
Pages : 129
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Book Description
This monograph provides a concise overview of nonlinear internal wave theory. It serves as a self-contained reference for both students of mathematics as well as scientific professionals by presenting the material in two parts, isolating the narrative analysis from the mathematical detail. This unique format allows the text to remain accessible to oceanographers and researchers outside of mathematics by presenting a range of relevant theories on their own terms. Conversely, it enables applied mathematicians to understand how the conversation between mathematics and sciences proceeds in a field that has developed through a combination of the two. In addition, the text is supplemented by hands-on Matlab software, as the book incorporates a collection of working codes that enable readers to reproduce all theoretical figures in the text, with modification potential to fit a range of applications including a number of mini-projects outlined throughout the text.
Author: Jo Roberts
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 296
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Book Description
