Bibliografías temáticas / Ocean system

Literatura académica sobre el tema "Ocean system"

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Publicado: 18 de mayo de 2024

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Artículos de revistas sobre el tema "Ocean system"

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Castillo-Rogez, Julie C. y Klára Kalousová. "Ocean Worlds In Our Solar System". Elements 18, n.º 3 (1 de junio de 2022): 161–66. http://dx.doi.org/10.2138/gselements.18.3.161.

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Spacecraft-based missions have discovered an increasing number of ocean worlds in our Solar System, with even more candidates awaiting confirmation. The science of ocean worlds shares some commonalities with that of Earth’s oceans, making them exciting targets of future exploration. A major known difference, however, is that ice shells up to tens of kilometers thick may present barriers to the introduction of chemical gradients necessary for life’s development over the long term. Hence, ocean worlds differ substantially in terms of their energy budget and chemistry, with Europa and Enceladus being currently considered the most promising candidates for life-search missions.
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Proctor, R., K. Roberts y B. J. Ward. "A data delivery system for IMOS, the Australian Integrated Marine Observing System". Advances in Geosciences 28 (27 de septiembre de 2010): 11–16. http://dx.doi.org/10.5194/adgeo-28-11-2010.

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Abstract. The Integrated Marine Observing System (IMOS, www.imos.org.au), an AUD $150 m 7-year project (2007–2013), is a distributed set of equipment and data-information services which, among many applications, collectively contribute to meeting the needs of marine climate research in Australia. The observing system provides data in the open oceans around Australia out to a few thousand kilometres as well as the coastal oceans through 11 facilities which effectively observe and measure the 4-dimensional ocean variability, and the physical and biological response of coastal and shelf seas around Australia. Through a national science rationale IMOS is organized as five regional nodes (Western Australia – WAIMOS, South Australian – SAIMOS, Tasmania – TASIMOS, New SouthWales – NSWIMOS and Queensland – QIMOS) surrounded by an oceanic node (Blue Water and Climate). Operationally IMOS is organized as 11 facilities (Argo Australia, Ships of Opportunity, Southern Ocean Automated Time Series Observations, Australian National Facility for Ocean Gliders, Autonomous Underwater Vehicle Facility, Australian National Mooring Network, Australian Coastal Ocean Radar Network, Australian Acoustic Tagging and Monitoring System, Facility for Automated Intelligent Monitoring of Marine Systems, eMarine Information Infrastructure and Satellite Remote Sensing) delivering data. IMOS data is freely available to the public. The data, a combination of near real-time and delayed mode, are made available to researchers through the electronic Marine Information Infrastructure (eMII). eMII utilises the Australian Academic Research Network (AARNET) to support a distributed database on OPeNDAP/THREDDS servers hosted by regional computing centres. IMOS instruments are described through the OGC Specification SensorML and where-ever possible data is in CF compliant netCDF format. Metadata, conforming to standard ISO 19115, is automatically harvested from the netCDF files and the metadata records catalogued in the OGC GeoNetwork Metadata Entry and Search Tool (MEST). Data discovery, access and download occur via web services through the IMOS Ocean Portal (http://imos.aodn.org.au) and tools for the display and integration of near real-time data are in development.
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Nishizawa, Manabu, Takuya Saito, Akiko Makabe, Hisahiro Ueda, Masafumi Saitoh, Takazo Shibuya y Ken Takai. "Stable Abiotic Production of Ammonia from Nitrate in Komatiite-Hosted Hydrothermal Systems in the Hadean and Archean Oceans". Minerals 11, n.º 3 (19 de marzo de 2021): 321. http://dx.doi.org/10.3390/min11030321.

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Abiotic fixation of atmospheric dinitrogen to ammonia is important in prebiotic chemistry and biological evolution in the Hadean and Archean oceans. Though it is widely accepted that nitrate (NO3−) was generated in the early atmospheres, the stable pathways of ammonia production from nitrate deposited in the early oceans remain unknown. This paper reports results of the first experiments simulating high-temperature, high-pressure reactions between nitrate and komatiite to find probable chemical pathways to deliver ammonia to the vent–ocean interface of komatiite-hosted hydrothermal systems and the global ocean on geological timescales. The fluid chemistry and mineralogy of the komatiite–H2O–NO3− system show iron-mediated production of ammonia from nitrate with yields of 10% at 250 °C and 350 °C, 500 bars. The komatiite–H2O–NO3– system also generated H2-rich and alkaline fluids, well-known prerequisites for prebiotic and primordial metabolisms, at lower temperatures than the komatiite–H2O–CO2 system. We estimate the ammonia flux from the komatiite-hosted systems to be 105–1010 mol/y in the early oceans. If the nitrate concentration in the early oceans was greater than 10 μmol/kg, the long-term production of ammonia through thermochemical nitrate reduction for the first billion years might have allowed the subsequent development of an early biosphere in the global surface ocean. Our results imply that komatiite-hosted systems might have impacted not only H2-based chemosynthetic ecosystems at the vent-ocean interface but also photosynthetic ecosystems on the early Earth.
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Zuo, Hao, Magdalena Alonso Balmaseda, Steffen Tietsche, Kristian Mogensen y Michael Mayer. "The ECMWF operational ensemble reanalysis–analysis system for ocean and sea ice: a description of the system and assessment". Ocean Science 15, n.º 3 (20 de junio de 2019): 779–808. http://dx.doi.org/10.5194/os-15-779-2019.

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Abstract. The ECMWF OCEAN5 system is a global ocean and sea-ice ensemble of reanalysis and real-time analysis. This paper gives a full description of the OCEAN5 system, with the focus on upgrades of system components with respect to its predecessors, ORAS4 and ORAP5. An important novelty in OCEAN5 is the ensemble generation strategy that includes perturbation of initial conditions and a generic perturbation scheme for observations and forcing fields. Other upgrades include revisions to the a priori bias correction scheme, observation quality control and assimilation method for sea-level anomalies. The OCEAN5 historical reconstruction of the ocean and sea-ice state is the ORAS5 reanalysis, which includes five ensemble members and covers the period from 1979 onwards. Updated versions of observation data sets are used in ORAS5 production, with special attention devoted to the consistency of sea surface temperature (SST) and sea-ice observations. Assessment of ORAS5 through sensitivity experiments suggests that all system components contribute to an improved fit to observation in reanalyses, with the most prominent contribution from direct assimilation of ocean in situ observations. Results of observing system experiments further suggest that the Argo float is the most influential observation type in our data assimilation system. Assessment of ORAS5 has also been carried out for several key ocean state variables and verified against reference climate data sets from the ESA CCI (European Space Agency Climate Change Initiative) project. With respect to ORAS4, ORAS5 has improved ocean climate state and variability in terms of SST and sea level, mostly due to increased model resolution and updates in assimilated observation data sets. In spite of the improvements, ORAS5 still underestimates the temporal variance of sea level and continues exhibiting large SST biases in the Gulf Stream and its extension regions which are possibly associated with misrepresentation of front positions. Overall, the SST and sea-ice uncertainties estimated using five ORAS5 ensemble members have spatial patterns consistent with those of analysis error. The ensemble spread of sea ice is commensurable with the sea-ice analysis error. On the contrary, the ensemble spread is under-dispersive for SST.
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Francis, P. A., A. K. Jithin, J. B. Effy, A. Chatterjee, K. Chakraborty, A. Paul, B. Balaji et al. "High-Resolution Operational Ocean Forecast and Reanalysis System for the Indian Ocean". Bulletin of the American Meteorological Society 101, n.º 8 (1 de agosto de 2020): E1340—E1356. http://dx.doi.org/10.1175/bams-d-19-0083.1.

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Abstract A good understanding of the general circulation features of the oceans, particularly of the coastal waters, and ability to predict the key oceanographic parameters with good accuracy and sufficient lead time are necessary for the safe conduct of maritime activities such as fishing, shipping, and offshore industries. Considering these requirements and buoyed by the advancements in the field of ocean modeling, data assimilation, and ocean observation networks along with the availability of the high-performance computational facility in India, Indian National Centre for Ocean Information Services has set up a “High-Resolution Operational Ocean Forecast and Reanalysis System” (HOOFS) with an aim to provide accurate ocean analysis and forecasts for the public, researchers, and other types of users like navigators and the Indian Coast Guard. Major components of HOOFS are (i) a suite of numerical ocean models configured for the Indian Ocean and the coastal waters using the Regional Ocean Modeling System (ROMS) for forecasting physical and biogeochemical state of the ocean and (ii) the data assimilation based on local ensemble transform Kalman filter that assimilates in situ and satellite observations in ROMS. Apart from the routine forecasts of key oceanographic parameters, a few important applications such as (i) Potential Fishing Zone forecasting system and (ii) Search and Rescue Aid Tool are also developed as part of the HOOFS project. The architecture of HOOFS, an account of the quality of ocean analysis and forecasts produced by it and important applications developed based on HOOFS are briefly discussed in this article.
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Dunne, John P., Jasmin G. John, Elena Shevliakova, Ronald J. Stouffer, John P. Krasting, Sergey L. Malyshev, P. C. D. Milly et al. "GFDL’s ESM2 Global Coupled Climate–Carbon Earth System Models. Part II: Carbon System Formulation and Baseline Simulation Characteristics*". Journal of Climate 26, n.º 7 (1 de abril de 2013): 2247–67. http://dx.doi.org/10.1175/jcli-d-12-00150.1.

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Abstract The authors describe carbon system formulation and simulation characteristics of two new global coupled carbon–climate Earth System Models (ESM), ESM2M and ESM2G. These models demonstrate good climate fidelity as described in part I of this study while incorporating explicit and consistent carbon dynamics. The two models differ almost exclusively in the physical ocean component; ESM2M uses the Modular Ocean Model version 4.1 with vertical pressure layers, whereas ESM2G uses generalized ocean layer dynamics with a bulk mixed layer and interior isopycnal layers. On land, both ESMs include a revised land model to simulate competitive vegetation distributions and functioning, including carbon cycling among vegetation, soil, and atmosphere. In the ocean, both models include new biogeochemical algorithms including phytoplankton functional group dynamics with flexible stoichiometry. Preindustrial simulations are spun up to give stable, realistic carbon cycle means and variability. Significant differences in simulation characteristics of these two models are described. Because of differences in oceanic ventilation rates, ESM2M has a stronger biological carbon pump but weaker northward implied atmospheric CO2 transport than ESM2G. The major advantages of ESM2G over ESM2M are improved representation of surface chlorophyll in the Atlantic and Indian Oceans and thermocline nutrients and oxygen in the North Pacific. Improved tree mortality parameters in ESM2G produced more realistic carbon accumulation in vegetation pools. The major advantages of ESM2M over ESM2G are reduced nutrient and oxygen biases in the southern and tropical oceans.
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Costa, Pedro, Breogán Gómez, Anabela Venâncio, Eva Pérez y Vicente Pérez-Muñuzuri. "Using the Regional Ocean Modelling System (ROMS) to improve the sea surface temperature predictions of the MERCATOR Ocean System". Scientia Marina 76, S1 (3 de septiembre de 2012): 165–75. http://dx.doi.org/10.3989/scimar.03614.19e.

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Zhu, Xueming, Hui Wang, Guimei Liu, Charly Régnier, Xiaodi Kuang, Dakui Wang, Shihe Ren, Zhiyou Jing y Marie Drévillon. "Comparison and validation of global and regional ocean forecasting systems for the South China Sea". Natural Hazards and Earth System Sciences 16, n.º 7 (20 de julio de 2016): 1639–55. http://dx.doi.org/10.5194/nhess-16-1639-2016.

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Abstract. In this paper, the performance of two operational ocean forecasting systems, the global Mercator Océan (MO) Operational System, developed and maintained by Mercator Océan in France, and the regional South China Sea Operational Forecasting System (SCSOFS), by the National Marine Environmental Forecasting Center (NMEFC) in China, have been examined. Both systems can provide science-based nowcast/forecast products of temperature, salinity, water level, and ocean circulations. Comparison and validation of the ocean circulations, the structures of temperature and salinity, and some mesoscale activities, such as ocean fronts, typhoons, and mesoscale eddies, are conducted based on observed satellite and in situ data obtained in 2012 in the South China Sea. The results showed that MO performs better in simulating the ocean circulations and sea surface temperature (SST), and SCSOFS performs better in simulating the structures of temperature and salinity. For the mesoscale activities, the performance of SCSOFS is better than MO in simulating SST fronts and SST decrease during Typhoon Tembin compared with the previous studies and satellite data; but model results from both of SCSOFS and MO show some differences from satellite observations. In conclusion, some recommendations have been proposed for both forecast systems to improve their forecasting performance in the near future based on our comparison and validation.
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Smith, Neville R. "Ocean modeling in a global ocean observing system". Reviews of Geophysics 31, n.º 3 (1993): 281. http://dx.doi.org/10.1029/93rg00134.

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Ash, C. "The ocean microbial system". Science 350, n.º 6266 (10 de diciembre de 2015): 1327–29. http://dx.doi.org/10.1126/science.350.6266.1327-j.

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Tesis sobre el tema "Ocean system"

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Muralidharan, Shylesh. "Assessment of ocean thermal energy conversion". Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76927.

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Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 103-109).
Ocean thermal energy conversion (OTEC) is a promising renewable energy technology to generate electricity and has other applications such as production of freshwater, seawater air-conditioning, marine culture and chilled-soil agriculture. Previous studies on the technology have focused on promoting it to generate electricity and produce energy-intensive products such as ammonia and hydrogen. Though the technology has been understood in the past couple of decades through academic studies and limited demonstration projects, the uncertainty around the financial viability of a large-scale plant and the lack of an operational demonstration project have delayed large investments in the technology. This study brings together a broad overview of the technology, market locations, technical and economic assessment of the technology, environmental impact of the technology and a comparison of the levelized costs of energy of this technology with competing ones. It also provides an analysis and discussion on application of this technology in water scarce regions of the world, emphasized with a case study of the economic feasibility of this technology for the Bahamas. It was found that current technology exists to build OTEC plants except for some components such as the cold water pipe which presents an engineering challenge when scaled for large-scale power output. The technology is capital intensive and unviable at small scale of power output but can become viable when approached as a sustainable integrated solution to co-generate electricity and freshwater, especially for island nations in the OTEC resource zones with supply constraints on both these commodities. To succeed, this technology requires the support of appropriate government regulation and innovative financing models to mitigate risks associated with the huge upfront investment costs. If the viability of this technology can be improved by integrating the production of by-products, OTEC can be an important means of producing more electricity, freshwater and food for the planet's increasing population.
by Shylesh Muralidharan.
S.M.in Engineering and Management
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2

Lin, Steve S. (Steve Simpson) 1976. "A distributed interactive ocean visualization system". Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80102.

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Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
Includes bibliographical references (leaf 47).
by Steve S. Lin.
S.B.and M.Eng.
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Amy, John Victor. "Composite system stability methods applied to advanced shipboard electric power systems". Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/10945/23576.

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CIVINS
Large increases in the complexity of shipboard electric loads as well as development of electric drive, integrated electric drive and pulsed power systems make manifest the present and future importance of naval electric power systems. The most crucial attribute of these systems is their ability to fulfill their function in the presence of "large-signal" perturbations. Fundamental differences between shipboard and commercial electric power systems make all but the most general nonlinear, "large-signal" stability analyses inappropriate for the design and assessment of naval electric power systems. The tightly coupled and compact nature of shipboard systems are best accommodated by composite system stability analyses. Composite system methods, based upon Lyapunov's direct method, require that each component's stability be represented by a Lyapunov function. A new Lyapunov function which is based upon coenergy is developed for 3-phase synchronous machines. This use of coenergy is generalizable to all electromechanical energy conversion devices. The coenergy-based Lyapunov function is implemented as a "stability organ" which generates waveforms at information teirninals of a "device object" in the object oriented simulation environment of WAVESIM. Single generator simulation results are used to acquire a measure of the "over sufficiency" of the coenergy-based Lyapunov function. Some means of combining the components' Lyapunov functions is necessary with composite system stability criterions. To provide the largest stability region in a Lyapunov function convective derivative space, thereby reducing "over sufficiency", a "timevariant weighted-sum" composite system criterion is developed. This criterion is implemented as a "stability demon" "device object" within the WAVESIM environment. The "stability demon" is tested through RLC circuit simulations and a two-generator simulation. The output of the "stability demon" is suitable for use within an overall system stabilising controller.
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Sarkar, Apurva Kumar. "polarized radiative transfer in atmosphere ocean system". Thesis, University of North Bengal, 2014. http://hdl.handle.net/123456789/1578.

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Cooper, Kyle Francis. "Evaluating global ocean reanalysis systems for the greater Agulhas Current System". Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/12829.

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Operational oceanography aims to accurately hindcast and forecast the state of the ocean. An international initiative, the Global Ocean Data Assimilation Experiment (GODAE), developed and increased the capacity for global operational oceanography. However, the products from the global initiatives were regionally inapplicable due to low spatial resolutions, and have recently improved through GODAE OceanView. A number of local operational oceanographic initiatives have been setup over the southern African regional ocean, but proved to be unsustainable and ended. Recently, the aim to develop a regional ocean prediction system has arisen, and initial steps have been taken. This thesis aims to address the lack of local capacity in operational oceanography, and contribute to a crucial process in developing a regional ocean prediction system. Here, we validate and investigate the differences between three global reanalysis products, namely MyOcean (GLORYS2V1), HYCOM (U.S Naval Research Laboratory) and BlueLINK (OFAM3). These reanalysis products are validated and investigated over the greater Agulhas Current System, which is a crucial system in Southern African regional ocean. The salient oceanographic features represented in the reanalysis products are initially compared to historical literature of the region and followed by available unassimilated observations (i.e. independent). The results show that the reanalysis products from MyOcean, and the U.S Naval Research Laboratory satisfactorily simulate the major salient oceanographic features of the Agulhas Current System. Bluelink does not correctly portray the structure of the source and retroflection regions, and therefore has limited use over the Agulhas Current System. The differences between the three products indicates that the data assimilate does not sufficiently constrain the models in order for their solutions over the Agulhas System to converge. The evaluation of these global ocean reanalysis products is a critical step toward a regional ocean prediction system over Southern Africa, and building toward the local capacity to accomplish this goal.
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Pedroza, Moises. "MOBILE TRACKING SYSTEM “MOTION ON THE OCEAN” TEST". International Foundation for Telemetering, 1999. http://hdl.handle.net/10150/608307.

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International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada
The Transportable Range Augmentation and Control System (TRACS), Mobile Telemetry System (MTS), is a versatile system capable of supporting anywhere when called upon. The MTS is designed to operate anywhere on land. It is unknown how the system will perform on a floating platform without a stabilizing gimbal. The operation of a tracking system at sea generally require the use of a three-axis pedestal. The MTS is a two-axis pedestal. This paper is a report on how the MTS responds to simulated ocean-motion. Testing the system on a body of water is very expensive, especially out in the desert. The MTS was tested in the desert area of Las Cruces, New Mexico in the parking lot of EMI Technologies, prime contractor, using two forklifts to simulate ship motion in the pitch and yaw planes. The location is perfect for crossover dynamics tests. The tests conducted were for the purpose of determining if the MTS could auto-track a moving signal in space while it also moves due to “simulated ocean swells” that increase the generated tracking error signal levels in an opposite or in addition to the ones generated from the space vehicle. There is no gyroscopic correction. Successful results of the tests could preclude the use of a gyroscopically stabilized gimbaled platform necessary to keep the tracking system steady for auto-tracking a target during “6 degrees of freedom” disturbances. Several thousand dollars can be saved if the concept can be proven.
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Braga, Martim Mas e. "Frontal system changes in the Southeastern Atlantic Ocean". Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/21/21135/tde-09042018-112125/.

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The transition between the South Atlantic and the Southern Ocean is marked by a frontal system that includes both the South Atlantic Current and the Antarctic Circumpolar Current (ACC). In the eastern part of the basin the latitudinal position of the fronts that compose this system is thought to control the input of warm waters into the Atlantic basin through the Agulhas Leakage. Changes in the Subtropical and Polar regimes associated with the system that marks the boundary between the Subtropical Gyre and the ACC are investigated using the simulation results of the ocean component of the National Center for Atmospheric Research (NCAR) Community Earth System Model (CESM), POP2. Sea surface height gradients and specific contours are used to identify and track the ocean fronts position. We compare the Subtropical Front position at the eastern edge of the South Atlantic to changes in temperature and salinity, as well as Agulhas Current transports and the overlying wind field, in order to determine what could be driving frontal variability at this region and its consequences to volume transport from the Indian into the Atlantic. Results suggest that the Subtropical Front is not the southern boundary of the subtropical gyre, but it responds to changes in the \"Supergyre\", especially the Indian Ocean Subtropical Gyre expansion.
A transição entre os oceanos Atlântico Sul e Austral é marcada por um sistema frontal que inclui tanto a Corrente do Atlântico Sul quanto a Corrente Circumpolar Antártica (CCA). Na porção oeste da bacia, acredita-se que a posição meridional das frentes que compõem este sistema controla o aporte de águas quentes para o Atlântico pelo Vazamento das Agulhas. Mudanças nos regimes subtropical e polar associadas ao sistema que marca o limite entre o giro subtropical e a CCA são investigadas através dos resultados da componente oceânica do modelo do National Center for Atmospheric Research (NCAR), o Community Earth System Model (CESM). O gradiente meridional, bem como valores específicos de altura da superfície do mar são usados para identificar e acompanhar a posição destas frentes oceânicas. A comparação da posição da Frente Subtropical no limite leste do Atlântico Sul com as mudanças na temperatura e salinidade, assim como no transporte da Corrente das Agulhas e do campo de ventos sobrejacente, é feita para determinar quais as forçantes da variabilidade frontal nesta região e suas consequências no transporte de volume entre o Índico e o Atlântico. Resultados sugerem que a Frente Subtropical não é o limite sul do giro subtropical, mas responde às mudanças no \"Supergiro\", especialmente à expansão do Giro Subtropical do Oceano Índico.
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Loveday, Benjamin. "Modelling wind-driven inter-ocean exchange in the greater Agulhas with the regional ocean modelling system". Doctoral thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/8805.

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Two Regional Ocean Modelling System configurations, AGIO and ARC112, are developed to investigate (1) the structure of the Agulhas leakage, (2) the dynamical link between the leakage and the Agulhas Current, and (3) the sensitivity of this link to changes in the regional wind field. Both configurations span the Indian Ocean and South East Atlantic Ocean (29° W - 115° E, 48.25° S - 7.5° N) at 1/4° resolution. ARC112 includes a two-way, AGRIF nested, 1/12° child domain, encapsulating the Agulhas retroflection (0° E - 40° E, 45.5° S - 29.5° S). Model evaluation shows that the basin-scale circulation patterns of the South Indian Ocean are appropriately captured. Western boundary transports match those derived from in situ hydrography, though source region fluxes exceed those observed. Both configurations exhibit inertially governed retroflections and produce Agulhas rings with eddy kinetic energy patterns consistent with those derived from altimetry. Improved topography in ARC112 yields a retroflection position and leakage value closer to observations. Dominant regional water masses are captured, but discrepancies in their distributions remain, especially in highly turbulent areas. The interannual variability of upper ocean heat content is well captured, and Indian Ocean dipole modes are appropriately expressed. Leakage is shown to be confined to the top 1500 m. Flux estimates, derived using complementary Eulerian passive tracer and Lagrangian virtual float techniques, converge where retroflection position is more accurate. Eddy flux, isolated using an Okubo-Weiss parameterisation, contributes only 1/3 to the total flux at the GoodHope line, with a 2:1 anticyclone to cyclone ratio. The remaining intra-ring flux occurs due to mixing between rings in the Cape Basin thermocline, which contains up to 50% Indian Ocean waters. Using a hybrid-criteria eddy-tracking scheme, ARC112i is shown to represent all three recently identified eddy paths, producing an accurate number of rings and cyclones with trajectories and radii that mirror observations, despite higher simulated speeds. A multi-decadal strengthening of the eddy component of Agulhas leakage is ascribed to increases in anti-cyclone speed and cyclone size. Linear changes in trade wind intensity, imposed through a series of idealised wind stress anomalies, concomitantly modulate Agulhas Current transport. The leakage flux response to changing western boundary current inertia is minimal, decreasing with higher resolution. Large changes in eddy kinetic energy are associated with small leakage anomalies, suggesting that the former is a poor leakage proxy. Initially, the leakage responds linearly to increasing westerly wind intensity, but increased mixing between the Agulhas Return Current and Antarctic Circumpolar Current reduces inter-basin flux as the latter adjusts. Consequently, it is suggested that Agulhas Current and leakage magnitude may, to a degree, vary independently, and that multi-decadal trends in the region may be a function of the wind forcing used. Equatorward shifts in the zero line of wind-stress curl drive a small leakage increase, counter to proposed palaeoceanographic mechanism where leakage is implied to reduce under these conditions.
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Lai, Sherman. "Shared displays to support collaborative exploration of ocean summits". Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/711.

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In group decision support systems, understanding the roles, dynamics and relationships between participants is imperative to streamlining the decision-making process. This is especially true when decision makers have varying interests. Research has shown that decision-making processes amongst groups with varying interests will often reach bottlenecks with issues, such as unwillingness to share information, or a limited ability of the participants to share ideas at the same time. We explored this research territory of group decision-making by implementing collaboration software to support Ocean Summits, a new approach that uses real-time simulations as part of the decision-making process for stakeholders to explore fisheries management policies. The research reported in this thesis has three goals: (1) to better understand the decision-making process in fisheries management, (2) to build a prototype system to tackle the major issues in the decision-making process and (3) to determine the best way to share and display information critical to the stakeholders' decision-making process by exploring the use of shared screens and information in comparison to private displays. We discovered that the use of shared screens with shared information yielded the best results, as opposed to private screens with shared information or private screens with private information. It was observed that sharing information allowed participants to explore more alternative solutions.
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Deucker, Stefan. "An efficient propulsion system for small underwater vehicles". Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/44486.

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Libros sobre el tema "Ocean system"

1

Monaco, André y Patrick Prouzet, eds. Ocean in the Earth System. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781119007678.

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Indonesian Operational Ocean Observing System (Project), ed. Indonesia ocean observing system: Inagoos. [Jakarta]: Departemen Kelautan dan Perikanan, 2006.

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Zhou, Tianjun, Yongqiang Yu, Yimin Liu y Bin Wang, eds. Flexible Global Ocean-Atmosphere-Land System Model. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41801-3.

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1948-, Barrera Enriqueta y Johnson Claudia C. 1955-, eds. Evolution of the Cretaceous ocean-climate system. Boulder, Colo: Geological Society of America, 1999.

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United States. National Oceanic and Atmospheric Administration. Office of Oceanic and Atmospheric Research. y University Corporation for Atmospheric Research., eds. Ocean system studies: NOAA/OAR research strategy. [Rockville, Md: National Oceanic and Atmospheric Administration, Office of, 1988.

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Ocean Observing System Development Panel. Scientific design for the common module of the Global Ocean Observing System and the Global Climate Observing System: An ocean observing system for climate : final report of the Ocean Observing System Development Panel. College Station, Tex: Texas A&M University, 1995.

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Lau, William K. M. y Duane E. Waliser. Intraseasonal Variability in the Atmosphere-Ocean Climate System. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-13914-7.

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Grankov, Alexander y Alexander Milshin. Natural Microwave Radiation of the Ocean-Atmosphere System. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-3206-5.

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Henin, Bernard. Exploring the Ocean Worlds of Our Solar System. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93476-1.

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A, Smith Elizabeth. Contents of the NASA Ocean Data System archive. Editado por Lassanyi Ruby A y Jet Propulsion Laboratory (U.S.). Pasadena, Calif: National Aeronautics and Space Administration, Jet Propulsion Laboratory, California Institute of Technology, 1990.

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Capítulos de libros sobre el tema "Ocean system"

1

Iglesias-Rodriguez, Maria Debora. "Ocean Acidification". En Earth System Monitoring, 269–89. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5684-1_12.

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Sun, Liping. "Mooring System". En Encyclopedia of Ocean Engineering, 1–5. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6963-5_136-1.

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Zheng, Hao, Hong Xiao, Qiuhua Li y Yin Xiao. "Lifting System". En Encyclopedia of Ocean Engineering, 923–26. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-10-6946-8_88.

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Zheng, Hao, Hong Xiao, Qiuhua Li y Yin Xiao. "Lifting System". En Encyclopedia of Ocean Engineering, 1–4. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-10-6963-5_88-1.

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Zaknich, Anthony y Philip Doolan. "ATS System Theory and Test Results". En Ocean Resources, 105–16. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2133-7_11.

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Kajitani, Yuji. "The Japanese Manganese Nodule Mining System". En Ocean Resources, 41–44. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2133-7_5.

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Evensen, Geir. "An ocean prediction system". En Data Assimilation, 255–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03711-5_16.

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Schofield, O., S. M. Glenn, M. A. Moline, M. Oliver, A. Irwin, Y. Chao y M. Arrott. "Ocean Observatories and Information: Building a Global Ocean Observing Network". En Earth System Monitoring, 319–36. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5684-1_14.

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Gimeno, Luis, Raquel Nieto, Anita Drumond y Ana María Durán-Quesada. "Ocean Evaporation and Precipitation". En Earth System Monitoring, 291–318. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5684-1_13.

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Rubenstein, D. y D. S. Hansen. "Rapid Environmental Acoustic Survey and Modeling System". En Ocean Reverberation, 379–84. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2078-4_51.

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Actas de conferencias sobre el tema "Ocean system"

1

Honhart, D. "Navy Remote Ocean Sensing System (N-ROSS) ocean monitoring system". En OCEANS '85 - Ocean Engineering and the Environment. IEEE, 1985. http://dx.doi.org/10.1109/oceans.1985.1160288.

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Doughty, R. y W. May. "An ocean dumping surveillance system". En OCEANS '85 - Ocean Engineering and the Environment. IEEE, 1985. http://dx.doi.org/10.1109/oceans.1985.1160154.

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Lightfoot, Fred M., William C. Morchin, Terry I. Eade y Robert E. Milligan. "A distributed ocean-based alternative energy system". En 2010 4th Annual IEEE Systems Conference. IEEE, 2010. http://dx.doi.org/10.1109/systems.2010.5482480.

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Enabnit, D. "Shipboard data system III". En OCEANS '85 - Ocean Engineering and the Environment. IEEE, 1985. http://dx.doi.org/10.1109/oceans.1985.1160218.

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Namba, Y., H. Ito, M. Kyo, K. Kato y H. Sugiyama. "Development of the Telemetry System for the Long-Term Borehole Monitoring System". En OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean. IEEE, 2008. http://dx.doi.org/10.1109/oceanskobe.2008.4530951.

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Niedrauer, T. y C. Paul. "A portable multispectral video system". En OCEANS '85 - Ocean Engineering and the Environment. IEEE, 1985. http://dx.doi.org/10.1109/oceans.1985.1160242.

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Currier, R. "RUM III vehicle control system". En OCEANS '85 - Ocean Engineering and the Environment. IEEE, 1985. http://dx.doi.org/10.1109/oceans.1985.1160153.

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Clark, A. y R. McCallum. "An advanced submersible handling system". En OCEANS '85 - Ocean Engineering and the Environment. IEEE, 1985. http://dx.doi.org/10.1109/oceans.1985.1160223.

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Bernard, E. y R. Behn. "Regional tsunami warning system (THRUST)". En OCEANS '85 - Ocean Engineering and the Environment. IEEE, 1985. http://dx.doi.org/10.1109/oceans.1985.1160268.

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von der Heydt, K., G. Duckworth y A. Baggeroer. "Acoustic array sensor tracking system". En OCEANS '85 - Ocean Engineering and the Environment. IEEE, 1985. http://dx.doi.org/10.1109/oceans.1985.1160307.

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Informes sobre el tema "Ocean system"

1

Hurlburt, Harley E. Global Ocean Prediction System. Fort Belvoir, VA: Defense Technical Information Center, septiembre de 1997. http://dx.doi.org/10.21236/ada629087.

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Weidemann, Alan y Kimberley Davis-Lunde. Ocean Response Coastal Analysis System. Fort Belvoir, VA: Defense Technical Information Center, enero de 2002. http://dx.doi.org/10.21236/ada516312.

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Weidemann, Alan y Kimberley Davis-Lunde. Ocean Response Coastal Analysis System. Fort Belvoir, VA: Defense Technical Information Center, septiembre de 2001. http://dx.doi.org/10.21236/ada628202.

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Rhodes, Robert C. y Charlie N. Barron. Basin-scale Ocean Prediction System. Fort Belvoir, VA: Defense Technical Information Center, septiembre de 1997. http://dx.doi.org/10.21236/ada629078.

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Weidemann, Alan y Kimberley Davis-Lunde. Ocean Response Coastal Analysis System. Fort Belvoir, VA: Defense Technical Information Center, septiembre de 2002. http://dx.doi.org/10.21236/ada629157.

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Rhodes, Robert C. y Harley E. Hurlburt. Basin-Scale Ocean Prediction System. Fort Belvoir, VA: Defense Technical Information Center, septiembre de 1999. http://dx.doi.org/10.21236/ada630763.

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Donaghay, Percy L. y Margaret M. Dekshenieks. Ocean Response Coastal Analysis System. Fort Belvoir, VA: Defense Technical Information Center, septiembre de 2002. http://dx.doi.org/10.21236/ada626575.

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Robinson, Allan R. Development of a Regional Coastal and Open Ocean Forecast System: Harvard Ocean Prediction System (HOPS). Fort Belvoir, VA: Defense Technical Information Center, julio de 1997. http://dx.doi.org/10.21236/ada328980.

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Greene, Richard M. Ocean Response Coastal Analysis System (ORCAS). Fort Belvoir, VA: Defense Technical Information Center, agosto de 2001. http://dx.doi.org/10.21236/ada627986.

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Greene, Richard M. Ocean Response Coastal Analysis System (ORCAS). Fort Belvoir, VA: Defense Technical Information Center, septiembre de 2002. http://dx.doi.org/10.21236/ada629149.

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