Download or read book Backscatter Analysis and Sidescan Imaging of the Deep Sea Floor Using the Multi beam Sonar Sea Beam written by Kushal K. Talukdar and published by . This book was released on 1991 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sidescan Imaging with Sea Beam Acoustic Backscatter Data Theory Analysis and Implementation written by Paul Hans Kraeutner and published by . This book was released on 1986 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Seafloor Sonar Imagery written by Philippe Blondel and published by . This book was released on 1997-05-30 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the ocean floor remains unmapped but with the introduction of acoustic remote sensing and deep submersible dives this is now achievable. The major use of this book is interpretation of sonar images through worked examples.

Download or read book Biological Sampling in the Deep Sea written by Malcolm R. Clark and published by John Wiley & Sons. This book was released on 2016-03-16 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: The deep sea covers over 60% of the surface of the earth, yet less than 1% has been scientifically investigated. There is growing pressure on deep-sea resources and on researchers to deliver information on biodiversity and the effects of human impacts on deep-sea ecosystems. Although scientific knowledge has increased rapidly in recent decades, there exist large gaps in global sampling coverage of the deep sea, and major efforts continue to be directed into offshore research. Biological Sampling in the Deep Sea represents the first comprehensive compilation of deep-sea sampling methodologies for a range of habitats. It reviews the real life applications of current, and in some instances developing, deep-sea sampling tools and techniques. In creating this book the authors have been able to draw upon the experiences of those at the coal face of deep-sea sampling, expanding on the existing methodological texts whilst encompassing a level of technical detail often omitted from journal publications. Ultimately the book will promote international consistency in sampling approaches and data collection, advance the integration of information into global databases, and facilitate improved data analyses and consequently uptake of science results for the management and conservation of the deep-sea environment. The book will appeal to a range of readers, including students, early-career through to seasoned researchers, as well as environmental managers and policy makers wishing to understand how the deep-sea is sampled, the challenges associated with deep survey work, and the type of information that can be obtained.

Download or read book Seafloor Geomorphology as Benthic Habitat written by Peter Harris and published by Elsevier. This book was released on 2011-11-28 with total page 947 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation This book provides a synthesis of seabed geomorphology and benthic habitats based on the most recent, up-to-date information. Case studies from around the world are presented.

Download or read book Pacific Marine Environmental Laboratory Summary Report Fiscal Year written by Pacific Marine Environmental Laboratory (U.S.) and published by . This book was released on 1991 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Handbook of Sidescan Sonar written by Philippe Blondel and published by Springer Science & Business Media. This book was released on 2010-05-17 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sidescan sonar is proving to be the preeminent technique for researchers and professionals seeking knowledge about the structure and behavior of the seafloor, but its data is often difficult to interpret due to the physics of acoustic remote sensing, and to the varied geological processes at play. This book covers the fundamentals of sidescan sonar, incorporates new understanding of marine structures, and explains how to interpret sidescan sonar imagery and bathymetry.

Download or read book Atlas of Submarine Glacial Landforms written by J.A. Dowdeswell and published by Geological Society of London. This book was released on 2016-12-16 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: New geophysical techniques (multibeam echo sounding and 3D seismics) have revolutionized high-resolution imaging of the modern seafloor and palaeo-shelf surfaces in Arctic and Antarctic waters, generating vast quantities of data and novel insights into sedimentary architecture and past environmental conditions. The Atlas of Submarine Glacial Landforms is a comprehensive and timely summary of the current state of knowledge of these high-latitude glacier-influenced systems. The Atlas presents over 180 contributions describing, illustrating and discussing the full variability of landforms found on the high-latitude glacier-influenced seafloor, from fjords and continental shelves to the continental slope, rise and deep-sea basins beyond. The distribution and geometry of these submarine landforms provide key information on past ice-sheet extent and the direction and nature of ice flow and dynamics. The papers discuss individual seafloor landforms, landform assemblages and entire landsystems from relatively mild to extreme glacimarine climatic settings and on timescales from the modern margins of tidewater glaciers, through Quaternary examples to ancient glaciations in the Late Ordovician.

Download or read book Advances in 3D Habitat Mapping of Marine Ecosystem Ecology and Conservation written by Renata Ferrari and published by Frontiers Media SA. This book was released on 2022-02-16 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparison of Seafloor Sonar Classification Methods Through the Use of Error Matrices and 3 Dimensional GIS Visualization written by Andrew S. Lanier and published by . This book was released on 2006 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multibeam sonar data was collected on Nehalem Bank, off of the Oregon Coast with the purpose of increasing the spatial resolution of our knowledge of the area and delineating seafloor habitats. The system used was the Kongsberg Simrad EM-300 operating at 30 kHz. The data set collected includes both topographic and backscatter information, both of which were processed and gridded at a 5m cell-size resolution. This thesis summarizes the methods used in the characterization of seafloor habitat using the Nehalem Bank data and the analysis tools incorporated within a geographic information system (GIS). This work focuses on investigations into the analysis of benthic habitats through the use of algorithmic calculations at multiple scales to quantitatively delineate distinct seafloor regions. A recently developed spatial analysis technique, the bathymetric position index (BPI), was tested and used as part of the Benthic Terrain Modeler Tool to classify the Nehalem Bank data. Those results were compared both qualitatively and quantitatively to a newly developed method (developed for this project) entitled the surface interpretation method (SIM). Both methods of classification use multiple scales of BPI in conjunction with the topographic digital elevation model (DEM) to quantitatively delineate seafloor habitats. While accuracy assessments of remotely sensed imagery on land are usually carried out using groundtruthing information collected specifically for that purpose, sonar imagery is often assessed using any information available. The groundtruth data available for Nehalem Bank is sparsely located throughout the region and includes: submersible dives, sample data, and seismic and sidescan imagery. In order to evaluate the fit of the classification attempts to the DEM quantitatively, a set of reference points was created and interpreted using the three dimensional (3D) visualization capabilities of a GIS. The results were analyzed using error matrix statistical measures that provided a quantitative assessment of the classification results, the feedback from which guided a refinement of the classification methods. This was done in attempt to optimize "real-world" evaluation of a classification methods results, without an idealized level of seafloor groundtruth data. The backscatter component of the data was processed to reduce the influence of grazing angle on the intensity of surface returns, a common source of noise that dominates many datasets. The processed image shows a reduced variability of the grey level of the imagery in both along and across track directions. Submersible dive groundtruth data were then co-located with the backscatter imagery using habitat interpretations of the dives displayed upon the DEM. The backscatter data was then classified in the regions of the dives using textural analysis with grey level co-occurrence matrix derived indices of homogeneity and entropy. The resulting substrate class divisions satisfactorily parsed the landscape into habitat regions, with the exceptions of the nadir and shadow regions. However, higher frequency deep-towed sidescan imagery in the same region shows that the delineation of substrate regions appears to be incorrect with the EM300 imagery likely imaging subsurface seafloor characteristics.

Download or read book Relating Geology of Benthic Habitats to Biological Resources written by and published by . This book was released on 1998 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oceans 92 written by and published by . This book was released on 1992 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Geophysical Exploration at Sea written by Richard A. Geyer and published by CRC Press. This book was released on 2018-02-06 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook presents advanced research and operational information about hard minerals and hydrocarbons. It provides information in an integrated, interdisciplinary manner, stressing case histories. It includes review chapters, illustrations, graphs, tables, and color satellite images that present the results of gravity, geodetic, and seismic surveys and of 3-D sea floor sub-bottom visualizations. The data was obtained using satellites, aircraft, and ships from the Atlantic and Pacific Oceans, the Gulf of Mexico, and the Caribbean Sea.Major topics addressed in these volumes include geophysical methods used to explore for hydrocarbons, advanced radiometric and electrical methods for hard mineral searches, the role of geotechnology and seismic acoustics in overcoming geological hazards in selecting drilling sites and pipeline routes, and remote sensing techniques used to determine the physical properties of hydrocarbons.

Download or read book Frontiers in marine geomorphometry written by Vincent Lecours and published by Frontiers Media SA. This book was released on 2024-05-10 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High resolution Seafloor Survey and Applications written by Ziyin Wu and published by Springer Nature. This book was released on 2020-12-07 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the survey technology, post-processing technology, mapping technology and scientific application of the submarine topography and geomorphology in detail. High-resolution submarine geomorphology is a frontier branch of marine geology and marine surveying and mapping, which provides a direct basis to study the seabed surface, to understand the tectonic movement and submarine evolution. In the past two decades, high-resolution submarine geomorphology with high-precision multi-beam echo sounding, side-scan sonar and sub-bottom profiler as the major techniques, is developing very quickly and is one of the frontiers of international marine science and technology. These high techniques promote the traditional submarine geomorphology to high-resolution and quantitative research. At present, high-resolution submarine geomorphology is widely used in the delimitation of the continental shelf, the international seabed resources survey, marine engineering and marine military applications. In order to facilitate readers to understand how to acquire and apply scientific research based on submarine topographic data, it highlights the combination of theory, technology and scientific application. This book is useful as a reference for professional and technical personnel in related fields and also as a textbook for both graduate and undergraduate students as well.

Download or read book Oceanic Abstracts written by and published by . This book was released on 1997-04 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coral Remote Sensing Workshop September 17 18 1996 written by and published by . This book was released on 1996 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: