Radar Remote Sensing Of Ocean Surface Currents And Waves

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Radar Remote Sensing of Ocean Surface Currents and Waves

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Author : Dragana Perkovic
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783838342313
Total Pages : 104 pages
Book Rating : 4.3/5 (423 download)

Book Synopsis Radar Remote Sensing of Ocean Surface Currents and Waves by : Dragana Perkovic

Download or read book Radar Remote Sensing of Ocean Surface Currents and Waves written by Dragana Perkovic and published by LAP Lambert Academic Publishing. This book was released on 2010 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The processes of erosion and sediment transport determine the bathymetric evolution of natural beaches. The alongshore transport of sediments and pollutants in the surf zone is primarily driven by mean currents with the circulation often characterized by mean longshore flows. These flows are affected by local bathymetry, spatial, and temporal changes in incident wave energy and direction. Capturing the spatial and temporal variations in mean flows in the surf zone is key to predicting the morphological change of the nearshore topography and shoreline. Much of the field research in the nearshore zone has been accomplished with in-situ measurement techniques requiring a substantial number of instruments to adequately sample the scales associated with nearshore circulation. Remote sensors are less invasive, are generally easier to deploy and maintain, and offer wider areal coverage than typical arrays of in-situ instruments. The text presents a comparison of two remote sensing techniques, microwave radar and optical video, used to infer nearshore surface currents. It also introduces engineers and scientists to the wide variety of applications of remote sensing in the nearshore zone.

Remote Sensing of Ocean Surface Current and Current Shear by HF Backscatter Radar

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Author : Eng-Chong Ha
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.F/5 ( download)

Book Synopsis Remote Sensing of Ocean Surface Current and Current Shear by HF Backscatter Radar by : Eng-Chong Ha

Download or read book Remote Sensing of Ocean Surface Current and Current Shear by HF Backscatter Radar written by Eng-Chong Ha and published by . This book was released on 1979 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Doppler spectrum of radar return from the sea at HF contains two narrow lines displaced upward and downward from the carrier frequency, resulting from backscatter off ocean surface waves moving toward and away from the radar, respectively. These Bragg lines indicate resonant backscatter which occurs for the ocean waves of length one-half the radio wavelength. The phase velocity of these gravity waves consists of two components; the first is determined by the wavelength and the second by the current component in the direction of wave propagation averaged over depth with an exponential weighting function that has a characteristic scale proportional to the wavelength. The Doppler shift of the radar carrier is determined by the wave phase velocity. Its variation with carrier frequency is thus related to the vertical profile of the current component in the radar direction by a Laplace transform; therein lies the principle of radio measurement of ocean current and its vertical shear. Radio backscatter experiments to verify the feasibility of such measurements were conducted using the radar operating at four frequencies covering the range from 3 to 30 MHz. The depth-averaged radial current deduced from the centroid of the Doppler-shifted sea echo experiments at 6.8, 13.3, 21.7, and 29.8 MHz showed fluctuations on the order of 1 cm/sec superimposed on temporal trends that reached maximum values of about 40 cm/sec. It is concluded that multifrequency backscatter ground-wave radar at HF constitutes a powerful technique for mapping current and its vertical profile in the top few meters of the ocean.

Radar Scattering from Modulated Wind Waves

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Author : G.J. Komen
Publisher : Springer Science & Business Media
ISBN 13 : 9400923090
Total Pages : 265 pages
Book Rating : 4.4/5 (9 download)

Book Synopsis Radar Scattering from Modulated Wind Waves by : G.J. Komen

Download or read book Radar Scattering from Modulated Wind Waves written by G.J. Komen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten years ago, de Loor and co-workers at TNO, The Netherlands, were the first to report bottom topography patterns in real aperture radar (RAR) images of the southern North Sea. At that time, this was a real puzzle. The skin depth of microwaves for sea water is only of the order of centimeters while the sea bottom is about 20 meters below the surface. Electromagnetic radiation therefore cannot probe the bottom directly. Similar phenomena were found in radar imagery from SEASAT and SIR-AlB synthetic aperture radars (SAR's) of Nantucket Shoals, the English Channel and many other coastal areas. Since then theory and ocean field experiments (Le., Phelps Bank, Georgia Straits, SARSEX, TOWARD, FASINEX, etc.) have advanced our understanding considerably. We now know that these surface signatures are the results of surface currents, perturbed by the bottom topography, which refract the propagation and modulate the energy of (short) surface waves so as to cause microwave backscatter power variations. Hence, any large scale ocean features containing nonuniform surface currents (i.e. internal waves, eddies, fronts, etc.) will cause similar manifestations in the radar imagery by means of current-wave-microwave interactions. Observations confirm this.

Measuring Ocean Currents

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Author : Antony Joseph
Publisher : Newnes
ISBN 13 : 0123914280
Total Pages : 447 pages
Book Rating : 4.1/5 (239 download)

Book Synopsis Measuring Ocean Currents by : Antony Joseph

Download or read book Measuring Ocean Currents written by Antony Joseph and published by Newnes. This book was released on 2013-08-12 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Radar Imaging of the Ocean Waves

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Author : Mikhail B. Kanevsky
Publisher : Elsevier
ISBN 13 : 0080932517
Total Pages : 207 pages
Book Rating : 4.0/5 (89 download)

Book Synopsis Radar Imaging of the Ocean Waves by : Mikhail B. Kanevsky

Download or read book Radar Imaging of the Ocean Waves written by Mikhail B. Kanevsky and published by Elsevier. This book was released on 2008-09-15 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to studying the ocean with radar tools, in particular, with space radars. Being intended mainly for the scientists preoccupied with the problem (as well as senior course students), it concentrates and generalizes the knowledge scattered over specialized journals. The significant part of the book contains the results obtained by the author. Systematically collects and describes the approaches used by different laboratories and institutions Deals with the physics of radar imagery and specifically with ocean surface imagery Useful for students and researchers specializing in the area of ocean remote sensing using airborne or space-borne radars, both SAR and RAR

Ocean Remote Sensing with Synthetic Aperture Radar

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Author : Xiaofeng Yang
Publisher :
ISBN 13 : 9783038427193
Total Pages : 0 pages
Book Rating : 4.4/5 (271 download)

Book Synopsis Ocean Remote Sensing with Synthetic Aperture Radar by : Xiaofeng Yang

Download or read book Ocean Remote Sensing with Synthetic Aperture Radar written by Xiaofeng Yang and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation The ocean covers approximately 71% of the Earth's surface, 90% of the biosphere and contains 97% of Earth's water. The Synthetic Aperture Radar (SAR) can image the ocean surface in all weather conditions and day or night. SAR remote sensing on ocean and coastal monitoring has become a research hotspot in geoscience and remote sensing. This book--Progress in SAR Oceanography--provides an update of the current state of the science on ocean remote sensing with SAR. Overall, the book presents a variety of marine applications, such as, oceanic surface and internal waves, wind, bathymetry, oil spill, coastline and intertidal zone classification, ship and other man-made objects' detection, as well as remotely sensed data assimilation. The book is aimed at a wide audience, ranging from graduate students, university teachers and working scientists to policy makers and managers. Efforts have been made to highlight general principles as well as the state-of-the-art technologies in the field of SAR Oceanography.

Seasat Detection of Waves, Currents and Inlet Discharges

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Author : Michael G. Mattie
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (359 download)

Book Synopsis Seasat Detection of Waves, Currents and Inlet Discharges by : Michael G. Mattie

Download or read book Seasat Detection of Waves, Currents and Inlet Discharges written by Michael G. Mattie and published by . This book was released on 1981 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Ocean Surface

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Author : Y. Toba
Publisher : Springer Science & Business Media
ISBN 13 : 940157717X
Total Pages : 581 pages
Book Rating : 4.4/5 (15 download)

Book Synopsis The Ocean Surface by : Y. Toba

Download or read book The Ocean Surface written by Y. Toba and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ocean Remote Sensing Technologies

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Author : Weimin Huang
Publisher : IET
ISBN 13 : 1839531614
Total Pages : 654 pages
Book Rating : 4.8/5 (395 download)

Book Synopsis Ocean Remote Sensing Technologies by : Weimin Huang

Download or read book Ocean Remote Sensing Technologies written by Weimin Huang and published by IET. This book was released on 2021-12-17 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a systematic introduction to the principles, state-of-the-art methods and applications of high frequency surface/sky wave radar and microwave marine radar, as well as an exploration of ongoing challenges in the field. It is a valuable resource for the radar and remote sensing communities.

Advances in Passive Microwave Remote Sensing of Oceans

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Author : Victor Raizer
Publisher : CRC Press
ISBN 13 : 1040095860
Total Pages : 411 pages
Book Rating : 4.0/5 (4 download)

Book Synopsis Advances in Passive Microwave Remote Sensing of Oceans by : Victor Raizer

Download or read book Advances in Passive Microwave Remote Sensing of Oceans written by Victor Raizer and published by CRC Press. This book was released on 2024-09-05 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition introduces the fundamentals of passive microwave remote sensing of oceans, including the physical principles of microwave radiometry, novel observational data, their interpretation, and applications. It not only demonstrates and examines the recent advantages and state of the art of microwave data but also provides guidance for explaining complex ocean studies and advanced applications. All chapters are thoroughly updated with detailed analysis of space‐based microwave missions, and a new chapter on space‐based microwave radiometer experiments has been added. This book discusses the power of microwave remote sensing as an efficient tool for diagnostics of ocean phenomena in research and education. Features New to this Edition: • Includes a new chapter and additional data, images, illustrations, and references. • Uses ocean microwave data, acquired from different platforms, to illustrate different methods of analysis and interpretation. • Updates information on recent and important satellite missions dedicated to microwave remote sensing of oceans. • Offers more detailed analysis of multiband microwave data and images. • Provides examples of microwave data that cover different ocean environmental phenomena and hydro‐physical fields, including global and local ocean features. • Presents additional material on advanced applications, including detection capabilities. This book is intended for postgraduate students and professionals working in fields related to remote sensing, geography, oceanography, civil, environmental, and geotechnical engineering.

Nonlinear Ocean Dynamics

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Author : Maged Marghany
Publisher : Elsevier
ISBN 13 : 0128209259
Total Pages : 464 pages
Book Rating : 4.1/5 (282 download)

Book Synopsis Nonlinear Ocean Dynamics by : Maged Marghany

Download or read book Nonlinear Ocean Dynamics written by Maged Marghany and published by Elsevier. This book was released on 2021-02-09 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear Ocean Dynamics: Synthetic Aperture Radar delivers the critical tools needed to understand the latest technology surrounding the radar imaging of nonlinear waves, particularly microwave radar, as a main source to understand, analyze and apply concepts in the field of ocean dynamic surface. Filling the gap between modern physics quantum theory and applications of radar imaging of ocean dynamic surface, this reference is packed with technical details associated with the potentiality of synthetic aperture radar (SAR). The book also includes key methods needed to extract the value-added information necessary, such as wave spectra energy, current pattern velocity, internal waves, and more. This book also reveals novel speculation of a shallow coastal front: named as Quantized Marghany's Front. Rounding out with practical simulations of 4-D wave-current interaction patterns using using radar images, the book brings an effective new source of technology and applications for today’s coastal scientists and engineers. Solves specific problems surrounding the nonlinearity of ocean surface dynamics in synthetic aperture radar data Helps develop new algorithms for retrieving ocean wave spectra and ocean current movements from synthetic aperture radar Includes over 100 equations that illustrate how to follow examples in the book

Remote Sensing of the Ocean Surface

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Author : Elizabeth A. Harrison
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (318 download)

Book Synopsis Remote Sensing of the Ocean Surface by : Elizabeth A. Harrison

Download or read book Remote Sensing of the Ocean Surface written by Elizabeth A. Harrison and published by . This book was released on 1973 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Remote Sensing of Ocean Waves by Surface Contour Radar

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Author : Edward J. Walsh
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (228 download)

Book Synopsis Remote Sensing of Ocean Waves by Surface Contour Radar by : Edward J. Walsh

Download or read book Remote Sensing of Ocean Waves by Surface Contour Radar written by Edward J. Walsh and published by . This book was released on 1982 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Surface Contour Radar (SCR), developed jointly by NASA Wallops Flight Center (WFC) and the Naval Research Laboratory, is an airborne, computer-controlled 36 GHz bistatic radar that produces a real-time topographical map of the surface beneath the aircraft. The SCR, described in detail by Kenney et al. (1979), was designed to measure the directional wave spectra of the ocean surface. Of the remote sensing instruments described in these proceedings, the SCR operates by the simplest measurement concept and offers the greatest ease of data interpretation, since it involves a direct range measurement.

Ocean Instrumentation, Electronics, and Energy

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Author : S. R. Vijayalakshmi
Publisher : Stylus Publishing, LLC
ISBN 13 : 1944534679
Total Pages : 566 pages
Book Rating : 4.9/5 (445 download)

Book Synopsis Ocean Instrumentation, Electronics, and Energy by : S. R. Vijayalakshmi

Download or read book Ocean Instrumentation, Electronics, and Energy written by S. R. Vijayalakshmi and published by Stylus Publishing, LLC. This book was released on 2017-09-25 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of ocean electronics, energy conversion, and instrumentation. As remote (satellite) sensing becomes increasingly important, this text provides readers with a solid background of wireless sensor networks and image-processing for oceans and ocean-related energy issues. Features: * Focuses on wind energy, ocean wave, ocean tidal, and ocean thermal energy conversion * Discusses the measurements of ocean monitoring parameters such as ocean color, sediment monitoring methods, surface currents, surface wind waves, wave height and wind speed, sea surface temperature, upwelling, wave power and the ocean floor * Discusses sensors like scanner sensor systems, weather satellites sensors, synthetic aperture radar sensors, marine observation satellite(MOS) sensors, micro sensors for monitoring ocean acidification * Includes material on underwater acoustics and underwater communication * Assesses the environmental impact of generating energy from the ocean * Explores the design of applications of marine electronics and oceanographic instruments

Remote Sensing of Shelf Sea Hydrodynamics

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Author : J.C.J. Nihoul
Publisher : Elsevier
ISBN 13 : 0080870767
Total Pages : 367 pages
Book Rating : 4.0/5 (88 download)

Book Synopsis Remote Sensing of Shelf Sea Hydrodynamics by : J.C.J. Nihoul

Download or read book Remote Sensing of Shelf Sea Hydrodynamics written by J.C.J. Nihoul and published by Elsevier. This book was released on 2000-04-01 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote Sensing of Shelf Sea Hydrodynamics

Surface Waves and Fluxes

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Author : G.L. Geernaert
Publisher : Springer Science & Business Media
ISBN 13 : 9400906277
Total Pages : 378 pages
Book Rating : 4.4/5 (9 download)

Book Synopsis Surface Waves and Fluxes by : G.L. Geernaert

Download or read book Surface Waves and Fluxes written by G.L. Geernaert and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the Conference on Air-Sea Interaction in January 1986, it was suggested to me by David Larner of Reidel Press that it may be timely for an updated compendium of air-sea interaction theory to be organized, developed, and published. Many new results were emerging at the time, i.e., results from the MARSEN, MAS EX, MILDEX, and TOWARD field projects (among others) were in the process of being reported and/or published. Further, a series of new experiments such as FASINEX and HEXOS were soon to be conducted in which new strides in our knowledge of air-sea fluxes would be made. During the year following the discussions with David Larner, it became apparent that many of the advances in air-sea interaction theory during the 1970s and 1980s were associated with sponsor investments in satellite oceanography and, in particular, remote sensing research. Since ocean surface remote sensing, e.g., scatterometry and SAR, requires intimate knowledge of ocean surface dynamics, advances in remote sensing capabilities required coordinated research in air-sea fluxes, wave state, scattering theory, sensor design, and data exploitation using environmental models. Based on this interplay of disciplines, it was decided that this book be devoted to air sea interaction and remote sensing as multi-disciplinary activities.

Coastal Ocean Dynamics Applications Radar

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Author : Thomas Martin Georges
Publisher :
ISBN 13 :
Total Pages : 352 pages
Book Rating : 4.3/5 (121 download)

Book Synopsis Coastal Ocean Dynamics Applications Radar by : Thomas Martin Georges

Download or read book Coastal Ocean Dynamics Applications Radar written by Thomas Martin Georges and published by . This book was released on 1985 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: