Relevant bibliographies by topics / Bight Basin

Academic literature on the topic 'Bight Basin'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Bight Basin"

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Somerville, R. "THE CEDUNA SUB-BASIN—A SNAPSHOT OF PROSPECTIVITY." APPEA Journal 41, no. 1 (2001): 321. http://dx.doi.org/10.1071/aj00015.

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The Ceduna Sub-basin comprises one of the major untested potential petroleum provinces in Australia. It is located in the Great Australian Bight, forming part of the Bight Basin. Water depths range from 100 m in the north to over 4,000 m in the south. Although over 100,000 line km of 2D marine seismic data have been acquired in the Great Australian Bight, only 20,600 line km of 2D marine seismic data of variable vintage and quality have been acquired in the Ceduna Sub-basin. Only one exploration well, Potoroo–1, has been drilled within the Ceduna Sub-basin. The Potoroo–1 well is located on the extreme landward edge of the depocentre which is dominated by the Late Cretaceous Ceduna Delta. Consequently, the hydrocarbon potential of the basin is effectively untested.The most promising play types within the Ceduna Subbasin are dip and fault-dip closures associated with listric faults within the Late Cretaceous (Santonian- Maastrichtian) deltaic sequence and accentuated by slight Late Cretaceous/Tertiary compression. Fault-dip closures are also recognised within the Santonian section. A channel sub-crop play within the Santonian is also potentially viable.Hydrocarbon charge is perceived to be the most significant exploration risk. Although asphaltite strandings have been reported, the hydrocarbon charge system is unproven. Future exploration in the Great Australian Bight will need to address:harsh climatic/meteorological and oceanographic conditions in the Southern Ocean and short seasonal windows;extreme sea floor relief and viability of safe exploration drilling in water depths over 1,500 m; andoperating in a responsible and environmentally sensitive way in proximity to the Benthic Protection Zone.
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Totterdell, Jennifer, Heike Struckmeyer, and Andrew Stacey. "Bight Basin acreage release—new exploration opportunities in a deep water frontier." APPEA Journal 49, no. 1 (2009): 491. http://dx.doi.org/10.1071/aj08032.

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In 2009, the Commonwealth Government is releasing six large exploration areas in the frontier Bight Basin. The areas lie in the Ceduna Sub-basin, in water depths ranging from 130 to 4,600 m. At present, no permits are held in this part of the basin. Most exploration drilling in the Bight Basin has focussed on the margins of the Ceduna Sub-basin and on the adjacent Duntroon Sub-basin. Gnarlyknots 1A, drilled by Woodside Energy and partners in 2003, is the only well to have attempted to test the thick, prospective Ceduna Sub-basin succession away from the margins of the sub-basin, but did not reach all its target horizons due to weather and ocean conditions. The key to the petroleum prospectivity of the Ceduna Sub-basin is the distribution of the Late Cretaceous marine and deltaic facies. Recent dredging of Late Cenomanian–Turonian organic-rich marine rocks has confirmed the presence of high quality source rocks in the Bight Basin and has significantly reduced exploration risk. These potential source rocks are mature in the central part of the Ceduna Sub-basin and are likely to have generated and expelled hydrocarbons since the Campanian. Excellent reservoir rocks and potential intraformational seals are present in the Late Cretaceous deltaic successions and regional seals could be provided by Late Cretaceous marine shales. Interpretation of seismic data has identified numerous play types in the basin and some structures show amplitude anomalies, providing many exploration targets for explorers.
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Norvick, M. S., and M. A. Smith. "MAPPING THE PLATE TECTONIC RECONSTRUCTION OF SOUTHERN AND SOUTHEASTERN AUSTRALIA AND IMPLICATIONS FOR PETROLEUM SYSTEMS." APPEA Journal 41, no. 1 (2001): 15. http://dx.doi.org/10.1071/aj00001.

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Southern Australian breakup history is divisible into three phases. The first phase began with Callovian (c.159–165 Ma) rifting in the western Bight Basin. During the Tithonian (c.142–146 Ma), rifting extended eastwards into the Duntroon, Otway and Gippsland Basins. By the Valanginian (c.130–135 Ma), ocean crust formed between India and western Australia. Structural style in the western Bight changed to thermal subsidence. However, fluvio-lacustrine rift sedimentation continued in Duntroon, Otway and Gippsland until the Barremian (c.115–123 Ma) when these basins also changed to thermal subsidence. The diachronous progression of basin fill types produces a progressive shift in ages of potential source, seal and reservoir intervals along the margin.The second phase began during the Cenomanian (c.92–97.5 Ma) with uplift in eastern Australia, stress reorganisation and divergence of basin development. The Otway, Sorell and Great South Basins formed in a transtensional regime. These tectonics resulted in trap generation through faulting, inversion and wrenching. During the Santonian, oceanic spreading began in the southern Tasman Sea (c.85 Ma). Slow extension caused thinning of continental crust in the Bight and Otway Basins and subsidence into deeper water. Ocean crust formed south of the Bight Basin in the Early Campanian (c.83 Ma) and also started extending up the eastern Australian coast.The third stage in development was caused by Eocene changes to fast spreading in the Southern Ocean (c.44 Ma), final separation of Australia and Antarctica, and cessation of Tasman Sea spreading. These events caused collapse of continental margins and widespread marine transgression. The resultant loading, maturation and marine seal deposition are critical to petroleum prospectivity in the Gippsland Basin.
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Gülzow, W., G. Rehder, J. Schneider v. Deimling, T. Seifert, and Zs Tóth. "One year of continuous measurements constraining methane emissions from the Baltic Sea to the atmosphere using a ship of opportunity." Biogeosciences Discussions 9, no. 8 (August 1, 2012): 9897–944. http://dx.doi.org/10.5194/bgd-9-9897-2012.

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Abstract. Methane and carbon dioxide were measured with an autonomous and continuous running system on a ferry line crossing the Baltic Sea on a 2–3 day interval from the Mecklenburg Bight to the Gulf of Finland in 2010. Surface methane saturations show great seasonal differences in shallow regions like the Mecklenburg Bight (103–507%) compared to deeper regions like the Gotland Basin (96–161%). The influence of controlling parameters like temperature, wind, mixing depth and processes like upwelling, mixing of the water column and sedimentary methane emissions on methane oversaturation and emission to the atmosphere are investigated. Upwelling was found to influence methane surface concentrations in the area of Gotland significantly during the summer period. In February 2010, an event of elevated methane concentrations in the surface water and water column of the Arkona Basin was observed, which could be linked to a wind-derived water level change as a potential triggering mechanism. The Baltic Sea is a source of methane to the atmosphere throughout the year, with highest fluxes during the winter season. Stratification was found to intensify the formation of a methane reservoir in deeper regions like Gulf of Finland or Bornholm Basin, which leads to long lasting elevated methane concentrations and enhanced methane fluxes, when mixed to the surface during mixed layer deepening in autumn and winter. Methane concentrations and fluxes from shallow regions like the Mecklenburg Bight are rather controlled by sedimentary production and consumption of methane, wind events and the change in temperature-dependent solubility of methane in the surface water. Methane fluxes vary significantly in shallow regions (e.g. Mecklenburg Bight) and regions with a temporal stratification (e.g. Bornholm Basin, Gulf of Finland). On the contrary, areas with a permanent stratification like the Gotland Basin show only small seasonal fluctuations in methane fluxes.
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Gülzow, W., G. Rehder, J. Schneider v. Deimling, T. Seifert, and Z. Tóth. "One year of continuous measurements constraining methane emissions from the Baltic Sea to the atmosphere using a ship of opportunity." Biogeosciences 10, no. 1 (January 8, 2013): 81–99. http://dx.doi.org/10.5194/bg-10-81-2013.

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Abstract. Methane and carbon dioxide were measured with an autonomous and continuous running system on a ferry line crossing the Baltic Sea on a 2–3 day interval from the Mecklenburg Bight to the Gulf of Finland in 2010. Surface methane saturations show great seasonal differences in shallow regions like the Mecklenburg Bight (103–507%) compared to deeper regions like the Gotland Basin (96–161%). The influence of controlling parameters like temperature, wind, mixing depth and processes like upwelling, mixing of the water column and sedimentary methane emissions on methane oversaturation and emission to the atmosphere are investigated. Upwelling was found to influence methane surface concentrations in the area of Gotland significantly during the summer period. In February 2010, an event of elevated methane concentrations in the surface water and water column of the Arkona Basin was observed, which could be linked to a wind-derived water level change as a potential triggering mechanism. The Baltic Sea is a source of methane to the atmosphere throughout the year, with highest fluxes occurring during the winter season. Stratification was found to promote the formation of a methane reservoir in deeper regions like Gulf of Finland or Bornholm Basin, which leads to long lasting elevated methane concentrations and enhanced methane fluxes, when mixed to the surface during mixed layer deepening in autumn and winter. Methane concentrations and fluxes from shallow regions like the Mecklenburg Bight are predominantly controlled by sedimentary production and consumption of methane, wind events and the change in temperature-dependent solubility of methane in the surface water. Methane fluxes vary significantly in shallow regions (e.g. Mecklenburg Bight) and regions with a temporal stratification (e.g. Bornholm Basin, Gulf of Finland). On the contrary, areas with a permanent stratification like the Gotland Basin show only small seasonal fluctuations in methane fluxes.
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Kempton, Richard H., Julien Bourdet, Se Gong, and Andrew S. Ross. "Revealing oil migration in the frontier Bight Basin, Australia." Marine and Petroleum Geology 113 (March 2020): 104124. http://dx.doi.org/10.1016/j.marpetgeo.2019.104124.

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Farrington, Rebecca, Kevin C. Hill, Jane Cunneen, Romain Beucher, and Louis Moresi. "The Bight Basin, Evolution & Prospectivity III; FE modelling." ASEG Extended Abstracts 2019, no. 1 (November 11, 2019): 1–4. http://dx.doi.org/10.1080/22020586.2019.12073226.

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Strømsøyen, Ingine, Edwin Schomacker, Bo Søderstrøm, and Bärbel M. T. Waagan. "The Bight Basin: a tale of three deltaic megasequences." APPEA Journal 59, no. 2 (2019): 952. http://dx.doi.org/10.1071/aj18213.

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The Bight Basin developed during the Jurassic and Cretaceous in response to repeated periods of extension and thermal cooling leading up to, and following, the onset of seafloor spreading between present-day Australia and Antarctica. The bulk of the resulting sedimentary basin fill includes up to 15 km of Middle Jurassic–recent sediments comprising three deltaic megasequences: White Pointer, Tiger and Hammerhead. High quality seismic 3D data have enabled detailed mapping of the megasequences, evaluation of the nature of infill and assessment of implications for hydrocarbon prospectivity. The Cenomanian White Pointer Megasequence succeeds a period of widespread mudstone deposition in the basin. Growth fault and complex styles of deposition are a function of the high accumulation rates. The growth faulting gradually ceased towards the top of the megasequence allowing for the delta to advance into the basin. Renewed tectonic activity during accumulation of the Turonian–Santonian Tiger Megasequence led to formation of the Outer High trend in the basin. Basal transgressive mudstones during early Tiger deposition are succeeded by a set of progradational–retrogradational units. The base of the Santonian–Maastrichtian Hammerhead Megasequence records widespread subaerial erosion and formation of incised valleys depicting a distinct drop in relative sea level most likely in response to the start of the Australian and Antarctic breakup. This event is followed by a widespread regional flooding event, before the Hammerhead delta built out, first in a highly progradational and subsequently in a more aggradational style. At the end of the sequence, the delta steps back due to decreasing sediment input. Detailed seismic stratigraphic mapping has improved the understanding of the gross depositional environment developed throughout the three megasequences, and importantly also helped identification of the main reservoir fairways and their distribution through time.
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Macdonald, J., G. Backé, R. King, S. Holford, and R. Hillis. "Geomechanical modelling of fault reactivation in the Ceduna Sub-basin, Bight Basin, Australia." Geological Society, London, Special Publications 367, no. 1 (2012): 71–89. http://dx.doi.org/10.1144/sp367.6.

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Cunneen, Jane, Chanel DePledge, Sharon Lowe, Kevin Hill, Candice Godfrey, Amanda Buckingham, and Rebecca Farrington. "The Bight Basin, Evolution & Prospectivity I: gravity, deep seismic & basin morphology." ASEG Extended Abstracts 2019, no. 1 (November 11, 2019): 1–4. http://dx.doi.org/10.1080/22020586.2019.12073121.

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Dissertations / Theses on the topic "Bight Basin"

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Pickavance, David Lindsay. "The Mesozoic and Tertiary structural development of the Ceduna Depocentre, Great Australian Bight Basin /." Title page, contents and abstract only, 1989. http://web4.library.adelaide.edu.au/theses/09SB/09sbp594.pdf.

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Quinn, David Martin Thomas. "An evaluation of seals, reservoirs and fault sealing potential in the Eyre Sub-Basin, Great Australian Bight /." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09S.B/09s.bq71.pdf.

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MacLachlan, Kate. "The Wild Bight Group, Newfoundland Appalachians : a composite early to middle-Ordovician ensimatic arc and continental margin arc-arc rift basin /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0011/NQ36208.pdf.

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Robson, Alexander George. "Normal fault growth analysis using 3D seismic datasets located along Australia’s southern margin." Thesis, 2017. http://hdl.handle.net/2440/113115.

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Understanding and constraining the growth of normal faults continues to remain a grand challenge for geoscientists. Normal faults have long been interpreted to grow symplistically with an elliptical fault surface growing radially and accrued displacement increasing from the fault tip‐line to the centre of the fault surface. However, continued rigorous analysis of normal fault arrays in rock outcrop and 3D seismic datasets has revealed that normal fault growth is substantially more complex. This is due to the growth and interaction of multiple fault segments, spatial heterogeneity in rock properties and a more detailed three‐dimensional analytical approach to understanding displacement variations, rather than in two‐dimensional analysis in the plane of view. The interpretation of normal fault growth has long been analysed on the centimetre and metre scale in rock outcrop. However, with increasingly available, high quality seismic datasets, constraints on normal fault growth can now be interpreted on the kilometre scale. Our present understanding of small‐scale normal fault growth using rock outcrop is crucial information if we are to constrain the growth of normal faults on the kilometre scale in 3D seismic datasets, with limitations such as data quality, resolution, depth penetration and spatial coverage. Seismic interpretation of normal fault geometry and development, explicitly or implicitly, will be influenced by, and in some cases rely on, preconceived and idealized conceptual models. Continued analysis of high quality seismic datasets, in order to further understand the development of normal fault systems, will create greater predictive ability in seismic interpretation and static modelling of the subsurface when a poorer quality seismic dataset does not provide a complete and obvious answer. Factors controlling normal fault growth, such as crustal extension, gravitational instability, thermal subsidence and sediment loading need to be better understood and constrained to allow for greater prediction of normal fault evolution in any given tectono‐stratigraphic setting. This thesis consists of four papers, each of which analyses the growth of Upper Cretaceous normal fault arrays along Australia’s rifted‐to‐passive southern margin providing implications for other rifted and passive margins around the world, including the North Sea, Suez Rift, East African Rift, Niger Delta, Gulf of Mexico and Baram Delta. Australia’s southern margin and its constituent basins (Bight, Otway, Sorell, Gippsland and Bass basins) was formed from the Australian‐Antarctica continental break‐up since the Middle to Late Jurassic. The four papers comprising this thesis provide analysis, interpretation and discussion on the development of normal fault arrays located in the Ceduna Sub‐ Basin of the Bight Basin and the Gambier Embayment, the present‐day shelf‐edge break and the Shipwreck Trough of the Otway Basin. This thesis aims to qualitatively constrain the influence of controls such as crustal extension, gravitational instability, deltaic sediment loading, perturbation of stress orientations and basin compartmentalisation on the spatial and temporal development of normal fault arrays in differing tectono‐stratigraphic settings. Therefore, the findings of this thesis may be used as a predictive tool for normal fault geometry, linkage, displacement distribution and the spatial and temporal development of normal fault arrays in known tectono‐stratigraphic settings around the world.
Thesis (Ph.D.) (Research by Publication) -- University of Adelaide, School of Physical Sciences, 2018
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Books on the topic "Bight Basin"

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Tidal Barriers & Opportunities for Salt Marsh and Tidal River Restoration in the Southern Bight of the Minas Basin, Nova Scotia. Not Avail, 2005.

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McClain, Linda C. Who's the Bigot? Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190877200.001.0001.

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Charges, denials, and countercharges of bigotry are increasingly frequent in the United States. Bigotry is a fraught and contested term, evident from the rejoinder that calling out bigotry is political correctness. That is so even though renouncing—and denouncing—bigotry seems to be a shared political value with a long history. Identifying, responding to, and preventing bigotry have engaged the efforts of many people. People disagree, however, over who is a bigot and what makes a belief, attitude, or action bigoted. This book argues that bigotry has both a backward- and forward-looking dimension. We learn bigotry’s meaning by looking to the past, but bigotry also has an important forward-looking dimension. Past examples of bigotry on which there is consensus become the basis for prospective judgments about analogous forms of bigotry. The rhetoric of bigotry—how people use such words as “bigot,” “bigoted,” and “bigotry”—poses puzzles that urgently demand attention. Those include whether bigotry concerns the motivation for or the content of a belief or action; whether reasonableness is a defense to charges of bigotry; whether the bigot is a distinct type, or whether we are all a bit bigoted; and whether “bigotry” is the term society gives to beliefs that now are beyond the pale. This book addresses those puzzles by examining prior controversies over interfaith and interracial marriage and the recent controversy over same-sex marriage, as well as controversies over landmark civil rights law and more recent conflicts between religious liberty and state anti-discrimination laws protecting LGBTQ persons.
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Book chapters on the topic "Bight Basin"

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Eisma, D., W. G. Mook, and C. Laban. "An Early Holocene Tidal Flat in the Southern Bight." In Holocene Marine Sedimentation in the North Sea Basin, 229–37. Oxford, UK: Blackwell Publishing Ltd., 2009. http://dx.doi.org/10.1002/9781444303759.ch17.

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Ludwig, Gerhard, Helmut Müller, and Hansjörg Streif. "New Dates on Holocene Sea-Level Changes in the German Bight." In Holocene Marine Sedimentation in the North Sea Basin, 211–19. Oxford, UK: Blackwell Publishing Ltd., 2009. http://dx.doi.org/10.1002/9781444303759.ch15.

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Swift, Donald J. P., Robert A. Young, Thomas L. Clarke, Christopher E. Vincent, Alan Niedoroda, and Barry Lesht. "Sediment Transport in the Middle Atlantic Bight of North America: Synopsis of Recent Observations." In Holocene Marine Sedimentation in the North Sea Basin, 361–83. Oxford, UK: Blackwell Publishing Ltd., 2009. http://dx.doi.org/10.1002/9781444303759.ch26.

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MacDonald, Justin, Simon Holford, and Rosalind King. "Structure and Prospectivity of the Ceduna Delta—Deep-Water Fold-Thrust Belt Systems, Bight Basin, Australia." In New Understanding of the Petroleum Systems of Continental Margins of the World: 32nd Annual, 779–816. SOCIETY OF ECONOMIC PALEONTOLOGISTS AND MINERALOGISTS, 2012. http://dx.doi.org/10.5724/gcs.12.32.0779.

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McClain, Linda C. "Conclusion." In Who's the Bigot?, 211–30. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190877200.003.0009.

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The chapter recaps the book’s basic claim that in the United States, there is both strong agreement over condemning bigotry as inconsistent with American values and sharp (often partisan) disagreement over bigotry’s forms, and who has the moral authority to call it out. Charges of bigotry are answered with charges of political correctness and countercharges of bigotry. It illustrates these claims with the example of a recent Congressional resolution condemning anti-Semitism, Islamophobia, racism, and other forms of bigotry. The book then offers some lessons about the rhetoric of bigotry and its puzzles based on prior chapters’ examination of controversies over marriage and civil rights law. It applies those lessons to ongoing conflicts over the legal rights of transgender persons. It then considers why the rhetoric of bigotry is not more common in discussing sexism and misogyny. Finally, it evaluates whether and when it is useful—even imperative—to call out bigotry.
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Keats, Jonathon. "Qubit." In Virtual Words. Oxford University Press, 2010. http://dx.doi.org/10.1093/oso/9780195398540.003.0012.

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Every man in ancient Egypt had his own standard of measurement. The standard unit was a cubit, the span from the bend of his elbow to his middle finger tip. A natural length, as natural as the body itself, it was also a natural source of disagreement between men of different statures. To build the Pyramids, or even conduct daily business without coming to fisticuff s, the cubit had to be universalized. And it was, more than once. The Egyptian royal cubit was one palm longer than the common cubit of 17.72 modern inches, that palm being scaled to match the hand of the reigning pharaoh. In Greece, where the cubit was adopted, it needed to be reconciled with the local fathom, based on the distance between two outstretched arms. Adjusted to measure one quarter of a fathom (the fathom having been standardized to six Greek feet of 12.14 modern inches each), the Greek cubit spanned 18.2 inches—which is to say somewhat less than the Babylonian cubit of 19.6 inches and somewhat more than the Roman cubit of 17.49 inches—none of these measures correlating with the Hebrew, Persian, Arabic, or Mesopotamian cubits. For the ancient trader, the range of cubit lengths must have been a source of aggravation. For the modern historian, though, these differences in definition—discrepancies in measurement preserved in written records and stone rods—are a rich source of information about ancient cultures, their bureaucratic structures, and their interactions with others. Future historians may find equivalent insight into our own time by examining our tortuous path toward standardized measurements of information. Our most basic unit is the bit, an abbreviation of binary digit. The word first appeared in print in 1948, in one of the founding papers of information theory, “A Mathematical Theory of Communication,” written by Claude Shannon, father of the discipline. Shannon borrowed bit from the statistician John Tukey, a colleague at Bell Laboratories who had a knack for coining catchy words (such as software), and came up with bit as an alternative to less attractive contractions, including binit and bigit.
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Conference papers on the topic "Bight Basin"

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Cunneen*, Jane, and Christopher F. Elders. "Cretaceous Fault Growth and Linkage in the Ceduna Shelf, Bight Basin, Southern Australia." In International Conference and Exhibition, Melbourne, Australia 13-16 September 2015. Society of Exploration Geophysicists and American Association of Petroleum Geologists, 2015. http://dx.doi.org/10.1190/ice2015-2208652.

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Robson*, Alexander G. "3D Seismic Analysis of the Structural Evolution of the Ceduna Sub-Basin, Great Australian Bight." In International Conference and Exhibition, Melbourne, Australia 13-16 September 2015. Society of Exploration Geophysicists and American Association of Petroleum Geologists, 2015. http://dx.doi.org/10.1190/ice2015-21590703.

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Holford*, Simon, Justin MacDonald, Paul F. Green, and Ian Duddy. "Thermochronological and Geochronological Constraints on the Origin and Evolution of the Cretaceous Ceduna Sub-Basin, Great Australian Bight." In International Conference and Exhibition, Melbourne, Australia 13-16 September 2015. Society of Exploration Geophysicists and American Association of Petroleum Geologists, 2015. http://dx.doi.org/10.1190/ice2015-2205535.

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Robson*, Alexander G. "Normal Fault Growth Analysis of Australia's Southern Margin: Evidence From 3-D Seismic Reflection Data in the Ceduna Sub-Basin, Great Australian Bight and Deep-Water Otway Basin." In International Conference and Exhibition, Melbourne, Australia 13-16 September 2015. Society of Exploration Geophysicists and American Association of Petroleum Geologists, 2015. http://dx.doi.org/10.1190/ice2015-2159066.

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Barham*, Milo, Shane Reynolds, Michael O’Leary, and Chris L. Kirkland. "Stratigraphy, Age and Provenance of Madura Shelf Sediments, WA: Implications for the Evolution of the Bight Basin and Australia's Southern Margin." In International Conference and Exhibition, Melbourne, Australia 13-16 September 2015. Society of Exploration Geophysicists and American Association of Petroleum Geologists, 2015. http://dx.doi.org/10.1190/ice2015-2206222.

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Sellier*, Nicolas, Oriol Ferrer, and Ken R. McClay. "Analogue Modelling of the Effect of Lobe Switching on the Gravity-Driven Deformation in Ceduna Deltas System (Bight Basin, Southern Australian Margin)." In International Conference and Exhibition, Melbourne, Australia 13-16 September 2015. Society of Exploration Geophysicists and American Association of Petroleum Geologists, 2015. http://dx.doi.org/10.1190/ice2015-2210915.

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Fragoso, Mauricio da Rocha, Francisco Alves dos Santos, Leonardo M. Marques da Cruz, Ju´lio A. C. Pellegrini, Tatiana Mafra, Arcilan Trevenzoli Assireu, and Bruna Nogueira Cerrone. "Real-Time Ocean Monitoring Through Lagragian Drifters During an Offshore Drilling Operation." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57807.

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MONDO Project is a surface ocean monitoring program for offshore operations never done before in Brazilian waters. It consisted on the periodic deployment of satellite tracked ocean drifters that provides real-time surface ocean currents and temperature data. Throughout September–November 2007, 40 satellite tracked ocean drifters were deployed at Santos Basin, located at the Brazilian Southeastern Ocean Bight. The results of this project can be used to study a wide range of subjects about ocean dynamics such as eddy activity, predictability, lagrangian integral scales, diffusivity, wind influence, etc. This paper is focused on eddies activities and ocean dynamics predictability. It can be observed that the number of anticyclonic eddies is a little higher than cyclonic ones during 2007 spring and that they present high values of relative vorticity (O(±10−5 s−1)). The rotation period lies between 16 days (anticyclonic) and 21days (cyclonic), with tangential velocities around 0.4 m/s. Comparison with data measured by drifters and altimetry showed good results, which indicates that a more extensive analysis about eddies in this region using altimetry data should provide relevant results. The methods of non-linear analysis applied to MONDO Project data allowed to estimate the predictability of the phenomena within Rossby radius scale (∼30 km). The results indicate that the prediction errors tend to double for periods greater than 3 days. It is suggested also that at least 4 variables should be considered in modeling studies on this region.
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Zimin, P. S., V. K. Fishchenko, A. E. Subote, A. V. Zatserkovny, and A. V. Golik. "РАЗРАБОТКА И АПРОБАЦИЯ В БУХТЕ АЛЕКСЕЕВА (О. ПОПОВА) ТЕХНОЛОГИЙ РЕГИСТРАЦИИ ВОЛНЕНИЯ И КОЛЕБАНИЙ УРОВНЯ МОРЯ С ИСПОЛЬЗОВАНИЕМ ВИДЕОВОЛНОМЕРОВ." In Fizika geosfer. ФГБУН Тихоокеанский океанологический институт им. В.И. Ильичева Дальневосточного отделения РАН, 2019. http://dx.doi.org/10.35976/poi.2019.1.38368.

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На Морской экспериментальной станции Бухта Алексеева , расположенной на побережье о. Попова (Амурский залив), с 2012 года проводятся исследования технологий регистрации волнения, подводных течений, колебаний уровня моря с использованием систем дистанционного видеонаблюдения. Установленные на берегу бухты интернеткамеры транслируют видео в сеть ДВО РАН, где в реальном времени производится его обработка с целью получения характеристик волновых процессов. Наиболее точной и эффективной является технология на основе видеоволномеров. Последние представляют собой развернутые в море на дистанциях до 500 м от берега измерительные конструкции с легким контрастным маркером, колеблющимся вертикально под действием волнения и колебаний уровня моря, а также береговой камеры, снимающей сцену с маркером. Программное обеспечение с заданной частотой (до 16 раз в секунду) анализирует кадры видео и регистрирует смещения маркера в пикселах относительно его начального положения. Зная размеры маркера, можно найти масштабный коэффициент для пересчета сигнала волнения h(t) из пикселов в сантиметры или миллиметры. Апробация этой технологии в бухте Алексеева показала, что волномер позволяет регистрировать приливные колебания, сейши, волнение зыби, ветровые волны, корабельные волны, волны ряби. В 20152016 годах были проведены исследования на базе трехточечных видеоволномеров. Последние позволили оценивать не только амплитуду и частоту волн, на также направление и скорость их распространения. Рассмотренные в работе технологии могут быть применены на любых прибрежных акваториях.At the Marine Experimental Station Alekseev Bight, located on the coast of Popov Island (Amursky Bay), since 2012, research has been conducted on technologies for recording waves, underwater currents, and sea level fluctuations using remote video surveillance systems. The IP cameras installed on the shore of the bay broadcast the video to the FEB RAS network, where it is processed in real time in order to obtain the characteristics of wave processes. The most accurate and efficient technology is based on videowavemeters. The latter consist of measuring structures deployed at distances of up to 500 m from the coast with a light contrasting marker, which oscillates vertically under the influence of waves and sea level fluctuations, as well as from a coastal camera filming a scene with a marker. Software with a given frequency (up to 16 times per second) analyzes video frames and registers marker displacements in pixels relative to its initial position. Knowing the size of the marker, you can find the scale factor for converting the wave signal h (t) from pixels to centimeters or millimeters. Testing of this technology in the Alekseeva Bay showed that a wave meter allows recording tidal oscillations, seiches, swell waves, wind waves, ship waves and ripple waves. In 20152016, studies were conducted on the basis of threepoint video wave meters. The latter allowed estimating not only the amplitude and frequency of the waves, but also the direction and speed of their propagation. The technologies considered in the work can be applied in any coastal areas.
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9

Zimin, P. S., V. K. Fishchenko, A. E. Subote, A. V. Zatserkovny, and A. V. Golik. "РАЗРАБОТКА И АПРОБАЦИЯ В БУХТЕ АЛЕКСЕЕВА (О. ПОПОВА) ТЕХНОЛОГИЙ РЕГИСТРАЦИИ ВОЛНЕНИЯ И КОЛЕБАНИЙ УРОВНЯ МОРЯ С ИСПОЛЬЗОВАНИЕМ ВИДЕОВОЛНОМЕРОВ." In Fizika geosfer. ФГБУН Тихоокеанский океанологический институт им. В.И. Ильичева Дальневосточного отделения РАН, 2019. http://dx.doi.org/10.35976/poi.2019.25.50.005.

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На Морской экспериментальной станции Бухта Алексеева , расположенной на побережье о. Попова (Амурский залив), с 2012 года проводятся исследования технологий регистрации волнения, подводных течений, колебаний уровня моря с использованием систем дистанционного видеонаблюдения. Установленные на берегу бухты интернеткамеры транслируют видео в сеть ДВО РАН, где в реальном времени производится его обработка с целью получения характеристик волновых процессов. Наиболее точной и эффективной является технология на основе видеоволномеров. Последние представляют собой развернутые в море на дистанциях до 500 м от берега измерительные конструкции с легким контрастным маркером, колеблющимся вертикально под действием волнения и колебаний уровня моря, а также береговой камеры, снимающей сцену с маркером. Программное обеспечение с заданной частотой (до 16 раз в секунду) анализирует кадры видео и регистрирует смещения маркера в пикселах относительно его начального положения. Зная размеры маркера, можно найти масштабный коэффициент для пересчета сигнала волнения h(t) из пикселов в сантиметры или миллиметры. Апробация этой технологии в бухте Алексеева показала, что волномер позволяет регистрировать приливные колебания, сейши, волнение зыби, ветровые волны, корабельные волны, волны ряби. В 20152016 годах были проведены исследования на базе трехточечных видеоволномеров. Последние позволили оценивать не только амплитуду и частоту волн, на также направление и скорость их распространения. Рассмотренные в работе технологии могут быть применены на любых прибрежных акваториях. Ключевые слова: морское волнение, колебания уровня моря, прибрежные зоны, камера видеонаблюдения, видеоволномер, обработка изображений и видео, обработка сигналовAt the Marine Experimental Station Alekseev Bight, located on the coast of Popov Island (Amursky Bay), since 2012, research has been conducted on technologies for recording waves, underwater currents, and sea level fluctuations using remote video surveillance systems. The IP cameras installed on the shore of the bay broadcast the video to the FEB RAS network, where it is processed in real time in order to obtain the characteristics of wave processes. The most accurate and efficient technology is based on videowavemeters. The latter consist of measuring structures deployed at distances of up to 500 m from the coast with a light contrasting marker, which oscillates vertically under the influence of waves and sea level fluctuations, as well as from a coastal camera filming a scene with a marker. Software with a given frequency (up to 16 times per second) analyzes video frames and registers marker displacements in pixels relative to its initial position. Knowing the size of the marker, you can find the scale factor for converting the wave signal h (t) from pixels to centimeters or millimeters. Testing of this technology in the Alekseeva Bay showed that a wave meter allows recording tidal oscillations, seiches, swell waves, wind waves, ship waves and ripple waves. In 20152016, studies were conducted on the basis of threepoint video wave meters. The latter allowed estimating not only the amplitude and frequency of the waves, but also the direction and speed of their propagation. The technologies considered in the work can be applied in any coastal areas. Keywords: sea waves, sea level oscillations, coastal zones, video surveillance camera, videowavemeter, image and video processing, signal processing
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10

Buck, B. H., A. Berg-Pollack, J. Assheuer, O. Zielinski, and D. Kassen. "Technical Realization of Extensive Aquaculture Constructions in Offshore Wind Farms: Consideration of the Mechanical Loads." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92663.

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The presented study focuses on the development of offshore wind farms in conjunction with open ocean aquaculture within the German Bight. For aquaculture enterprises in the open ocean an extensive cultivation of various species, blue mussels (Mytilus edulis), oysters (Ostrea edulis, Crassostrea gigas) and seaweed (Laminaria saccharina), is considered. However, without the solid foundations for wind turbines, such as monopiles and tripods as anchor or connection points, economic installations of equipment for mariculture would not be possible in view of the high-energy environment in this part of the North Sea. Thus, one of the most important questions pertains whether it is technically possible and economic feasible to use the offshore foundation structures as fixation device for aquaculture operations, such as a longline as one possible culture design. A longline culture is an open-water suspended technology in which cultured species are on-grown on ropes or diverse substrates, such as rope collectors for the catch of mussel spat, suspended from anchored and buoyed surface or subsurface horizontal ropes (longline). For the calculation of additional foundation costs generated through the attached longline system knowledge on the supplement loads and stresses as well as on the required constructive modifications of the foundation must be obtained. The development and the conceptual design of offshore foundation structures are complex and require an interdisciplinary approach. In the presented project we aim to evaluate the induced loads between a foundation structure for offshore wind energy turbines and a longline system and to develop appropriate connection points. As monopile and tripod foundations are the most common foundation structures to date, these both will be considered within the modeling approach which calculates the respective loads from wind and waves. Both foundation structures are in the dimension of 4–5 MW wind turbines, while the monopile design will be calculated for a water depth of 10 m whereas the tripod for a water depth of 30 m. To validate the model outcomes, an entire monopile-longline-monopile construction is set up in the offshore waters 10 nautical miles off the Island of Sylt at a water depth of about 17 m. At this site, the deformation behavior of the entire system will be determined on the basis of analytically calculated loads supported by the measurement of local stresses at the junction of the longline with the foundation. An additional measurement of forces will be performed on selected mussel collectors. To evaluate the observed loads with respect to environmental conditions, namely currents and waves, accompanying sensors will be installed on site. These achieved datasets will be used for the verification of the computer model for mechanical loads at the longline. Finally it is intended to scale up the model to the proportions of a wind farm while considering the interactions in the wavefield in which the longline system will be located.
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Reports on the topic "Bight Basin"

1

Hickey, B. California Basin Study (CaBS): Circulation and particle fluxes in the California bight: Six month progress report, May 15, 1989--November 14, 1989. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/5940391.

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2

Eppley, R. Primary production, nutrients, and particulate matter in the southern California bight: Contributions to the C, N, and O/sub 2/ budgets: A component of the California Basin Study (CaBS): (Progress report, November 1988). Office of Scientific and Technical Information (OSTI), January 1988. http://dx.doi.org/10.2172/6042758.

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