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Articoli di riviste sul tema "Oceans"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Siqueira, Beatriz, Jonas Teixeira Nery, and Oliver Messeguer-Ruiz. "Análise dos Índices das Temperaturas Superficiais das Zonas Intertropicais dos Oceanos Pacífico e Atlântico associados às precipitações no Nordeste do Brasil." Revista Brasileira de Geografia Física 14, no. 2 (2021): 1081. http://dx.doi.org/10.26848/rbgf.v14.2.p1081-1093.

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O objetivo deste estudo foi analisar, através de índices climáticos, a variabilidade da precipitação na região Nordeste do Brasil. Para tanto foram utilizados dados em ponto de grade para gerar o índice de precipitação, bem como dados da National Oceanic Atmospheric Administration (NOAA) para gerar os índices de temperatura do oceano Pacífico (setor EN3.4) e do oceano Atlântico tropical norte e sul. O período de análise foi de 1970 a 2012. Com base nesses índices foram realizadas correlações lineares de Pearson, entre o oceano Pacífico e o Atlântico tropical norte e o oceano tropical sul, na c

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Auclair-Desrotour, P., S. Mathis, J. Laskar, and J. Leconte. "Oceanic tides from Earth-like to ocean planets." Astronomy & Astrophysics 615 (July 2018): A23. http://dx.doi.org/10.1051/0004-6361/201732249.

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Context. Oceanic tides are a major source of tidal dissipation. They drive the evolution of planetary systems and the rotational dynamics of planets. However, two-dimensional (2D) models commonly used for the Earth cannot be applied to extrasolar telluric planets hosting potentially deep oceans because they ignore the three-dimensional (3D) effects related to the ocean’s vertical structure. Aims. Our goal is to investigate, in a consistant way, the importance of the contribution of internal gravity waves in the oceanic tidal response and to propose a modelling that allows one to treat a wide r

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Clark, Elizabeth A., Justin Sheffield, Michelle T. H. van Vliet, Bart Nijssen, and Dennis P. Lettenmaier. "Continental Runoff into the Oceans (1950–2008)." Journal of Hydrometeorology 16, no. 4 (2015): 1502–20. http://dx.doi.org/10.1175/jhm-d-14-0183.1.

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Abstract A common term in the continental and oceanic components of the global water cycle is freshwater discharge to the oceans. Many estimates of the annual average global discharge have been made over the past 100 yr with a surprisingly wide range. As more observations have become available and continental-scale land surface model simulations of runoff have improved, these past estimates are cast in a somewhat different light. In this paper, a combination of observations from 839 river gauging stations near the outlets of large river basins is used in combination with simulated runoff field

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Bear, Christopher. "The ocean exceeded: Fish, flows and forces." Dialogues in Human Geography 9, no. 3 (2019): 329–32. http://dx.doi.org/10.1177/2043820619878567.

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The ongoing conceptualisation of oceans and the hydrosphere by Peters and Steinberg is to be welcomed. They continue to challenge geography’s historical tendency to focus on and from terrestrial spaces, exploring how oceans exceed their material, discursive and imagined boundaries along with their liquid form. This short commentary responds specifically to their assertion that ‘The ocean is fish’. Using the example of Atlantic salmon, it questions the directionality at the heart of Peters and Steinberg’s paper. It focuses particularly on the complex spatialities of salmonid life, and the abili

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5

Kidd, Aline H., and Robert M. Kidd. "General Attitudes toward and Knowledge about the Importance of Ocean Life." Psychological Reports 82, no. 1 (1998): 323–29. http://dx.doi.org/10.2466/pr0.1998.82.1.323.

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To evaluate the amount of awareness and quality of knowledge about ocean life the average American possesses 100 men and 100 women were asked what they knew about the importance of the oceans, their attitudes toward protection of marine life and oceanic ecology, and their sources of information regarding oceans. 98% believed that oceans are necessary for human survival and 92% believed that marine life was essential to the over-all ecology. 89% believed that dumping and toxic pollution almost irreparably harm marine life and that such practices must be stopped. 48% obtained their information a

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6

Quirk, Genevieve, and Quentin Hanich. "Ocean Diplomacy: The Pacific Island Countries’ Campaign to the UN for an Ocean Sustainable Development Goal." Asia-Pacific Journal of Ocean Law and Policy 1, no. 1 (2016): 68–95. http://dx.doi.org/10.1163/24519391-00101005.

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In this article we examine how Pacific Island Countries (pics) successfully championed a stand-alone Ocean Sustainable Development Goal (sdg) goal at the United Nations (un). We analyse how the un Post-2015 development process provided pics with a unique opportunity to use their experience with collective diplomacy and regional oceans governance to propose this international goal. In this article we establish how pics’ national and regional quest to strengthen their sovereign rights over marine resources motivated their diplomatic efforts for an Ocean sdg. The campaign was a significant politi

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7

Dommenget, Dietmar. "The Ocean’s Role in Continental Climate Variability and Change." Journal of Climate 22, no. 18 (2009): 4939–52. http://dx.doi.org/10.1175/2009jcli2778.1.

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Abstract A characteristic feature of global warming is the land–sea contrast, with stronger warming over land than over oceans. Recent studies find that this land–sea contrast also exists in equilibrium global change scenarios, and it is caused by differences in the availability of surface moisture over land and oceans. In this study it is illustrated that this land–sea contrast exists also on interannual time scales and that the ocean–land interaction is strongly asymmetric. The land surface temperature is more sensitive to the oceans than the oceans are to the land surface temperature, which

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8

Smith, H. J. "OCEANS: Tracing Ocean Circulation." Science 288, no. 5474 (2000): 2097e—2099. http://dx.doi.org/10.1126/science.288.5474.2097e.

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9

Eperjesi, John R. "Imagined Oceans." Journal of Popular Music Studies 34, no. 1 (2022): 118–40. http://dx.doi.org/10.1525/jpms.2022.34.1.118.

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Over the past twenty years, Black Atlantic Afrofuturism has been the dominant theoretical frame for thinking about the significance of Drexciya’s aquatically themed techno music and mythology. Yet there have been few analyses of Drexciya from the perspective of ecology, of the ocean as a marine environment. Through a semiotic analysis of Drexciya’s 1993 EP Bubble Metropolis, this paper moves the discussion of Drexciya in the direction of ecocriticism and blue cultural studies, or more broadly, the blue humanities, in order to interpret the stories it tells about an imagined ocean. What do thes

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10

Souza Neto, Pedro Fernandes de, Djane Fonseca Da Silva, and Henrique Ravi Rocha de Carvalho Almeida. "Análise da Variabilidade Climática dos Oceanos Atlântico e Pacífico." Revista Brasileira de Geografia Física 14, no. 4 (2021): 1861–79. http://dx.doi.org/10.26848/rbgf.v14.4.p1861-1879.

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The sea surface temperature is one of the main variables for analyzing the global climate, and with that, it is essential to know its behavior. Thus, the objective of this study is to understand the best temperature variability of the sea surface of the Atlantic and Pacific oceans, through information on the causes of its variability using Wavelet analysis, and also using the climatic trends of the TSM of the oceans. Sea surface temperature anomaly data obtained through the National Oceanic and Atmospheric Administration with period of 1955-2018, for the Atlantic and Pacific Oceans, divided in

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11

Renforth, P., and J. S. Campbell. "The role of soils in the regulation of ocean acidification." Philosophical Transactions of the Royal Society B: Biological Sciences 376, no. 1834 (2021): 20200174. http://dx.doi.org/10.1098/rstb.2020.0174.

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Soils play an important role in mediating chemical weathering reactions and carbon transfer from the land to the ocean. Proposals to increase the contribution of alkalinity to the oceans through ‘enhanced weathering’ as a means to help prevent climate change are gaining increasing attention. This would augment the existing connection between the biogeochemical function of soils and alkalinity levels in the ocean. The feasibility of enhanced weathering depends on the combined influence of what minerals are added to soils, the formation of secondary minerals in soils and the drainage regime, and

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12

Kajtar, Jules B., Agus Santoso, Matthew H. England, and Wenju Cai. "Indo-Pacific Climate Interactions in the Absence of an Indonesian Throughflow." Journal of Climate 28, no. 13 (2015): 5017–29. http://dx.doi.org/10.1175/jcli-d-14-00114.1.

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Abstract The Pacific and Indian Oceans are connected by an oceanic passage called the Indonesian Throughflow (ITF). In this setting, modes of climate variability over the two oceanic basins interact. El Niño–Southern Oscillation (ENSO) events generate sea surface temperature anomalies (SSTAs) over the Indian Ocean that, in turn, influence ENSO evolution. This raises the question as to whether Indo-Pacific feedback interactions would still occur in a climate system without an Indonesian Throughflow. This issue is investigated here for the first time using a coupled climate model with a blocked

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13

Arnold, S. R., D. V. Spracklen, S. Gebhardt, et al. "Relationships between atmospheric organic compounds and air-mass exposure to marine biology." Environmental Chemistry 7, no. 3 (2010): 232. http://dx.doi.org/10.1071/en09144.

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Environmental context.The exchange of gases between the atmosphere and oceans impacts Earth’s climate. Over the remote oceans, marine emissions of organic species may have significant impacts on cloud properties and the atmosphere’s oxidative capacity. Quantifying these emissions and their dependence on ocean biology over the global oceans is a major challenge. Here we present a new method which relates atmospheric abundance of several organic chemicals over the South Atlantic Ocean to the exposure of air to ocean biology over several days before its sampling. Abstract.We have used a Lagrangia

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14

Shimada, Teruhisa, Yuki Kanno, and Toshiki Iwasaki. "Low-Level Cool Air over the Midlatitude Oceans in Summer." Journal of Climate 31, no. 5 (2018): 2075–90. http://dx.doi.org/10.1175/jcli-d-17-0188.1.

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The climatology of low-level cool air over the midlatitude oceans in summer is presented based on an isentropic analysis. This study focuses on isentropic surfaces of 296 K to analyze an adiabatic invariant referred to as the negative heat content representing the coldness of the air layer below the threshold isentropic surface. This approach allows a systematic analysis and a quantitative comparison of the cool air distribution and a diagnosis of diabatic heating of the air mass. The cool air covers most of the subarctic oceans and extends equatorward over the coastal upwelling regions in the

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15

Currie, Carolyn V. "One Ocean – Stopping Oceanic Pollution is the biggest Challenge of Climate Change." Global Business & Economics Anthology I&II, no. 2024 (2024): 38–54. http://dx.doi.org/10.47341/gbea.24124.

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This is the first paper in a series on our oceans. There has been a concentration of climate change solutions on air pollution which ignores one vital factor. That the ocean covers 70 percent of Earth's surface, containing about 1.35 billion cubic kilometres of water, constituting about 97 percent of all water on Earth. The ocean’s size means that it plays a key role in determining weather patterns and hence both local and world climatic events. The critical role of the ocean is in balancing global temperatures as water absorbs heat in the summer and releases it in the winter. Without the ocea

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16

Brosche, P. "Oceanic Influences on the Angular Velocity of the Earth." Symposium - International Astronomical Union 141 (1990): 156. http://dx.doi.org/10.1017/s0074180900086617.

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Hydrodynamical computations of the major partial tides in the oceans have been evaluated for the changes both in moment of inertia and relative angular momentum due to ocean currents. If the system solid Earth plus oceans is seen as an isolated system for these time scales, the oceanic variations lead to mirror-like changes in the rotation of the solid Earth. Amplitudes are of the order of 0.1 ms in Universal time. In contrast to the effects of solid Earth tide, phases are away from equilibrium phases.

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17

Ali, Ismail Bin. "The Relationship between Oceans and Earth: What Scientists and Religion Point of View." International Journal of Research and Innovation in Social Science IX, IIIS (2025): 4088–99. https://doi.org/10.47772/ijriss.2025.903sedu0287.

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This article explores the relationship between oceans and earth through the lenses of science and religion, emphasizing their significance in sustaining the global ecosystem. The oceans regulate climate, preserve biodiversity, and provide vital resources. However, climate change, pollution, and overexploitation threaten marine systems. Using a qualitative methodology grounded in secondary data analysis and a comprehensive literature review, this study reveals the deep interdependence between the ocean and the earth. The article also examines religious interpretations of the ocean's role and hu

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18

Malviya, Shruti, Eleonora Scalco, Stéphane Audic, et al. "Insights into global diatom distribution and diversity in the world’s ocean." Proceedings of the National Academy of Sciences 113, no. 11 (2016): E1516—E1525. http://dx.doi.org/10.1073/pnas.1509523113.

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Diatoms (Bacillariophyta) constitute one of the most diverse and ecologically important groups of phytoplankton. They are considered to be particularly important in nutrient-rich coastal ecosystems and at high latitudes, but considerably less so in the oligotrophic open ocean. The Tara Oceans circumnavigation collected samples from a wide range of oceanic regions using a standardized sampling procedure. Here, a total of ∼12 million diatom V9-18S ribosomal DNA (rDNA) ribotypes, derived from 293 size-fractionated plankton communities collected at 46 sampling sites across the global ocean euphoti

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19

Chisholm, S. W. "OCEANS: Dis-Crediting Ocean Fertilization." Science 294, no. 5541 (2001): 309–10. http://dx.doi.org/10.1126/science.1065349.

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20

Thomas, H., L. S. Schiettecatte, K. Suykens, et al. "Enhanced ocean carbon storage from anaerobic alkalinity generation in coastal sediments." Biogeosciences Discussions 5, no. 4 (2008): 3575–91. http://dx.doi.org/10.5194/bgd-5-3575-2008.

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Abstract. The coastal ocean constitutes the crucial link between land, the open ocean and the atmosphere. Furthermore, its shallow water column permits close interactions between the sedimentary and atmospheric compartments, which otherwise are decoupled at short time scales (<1000 yr) in the open oceans. Despite the prominent role of the coastal oceans in absorbing atmospheric CO2 and transferring it into the deep oceans via the continental shelf pump, the underlying mechanisms remain only partly understood. Evaluating observations from the North Sea, a NW European shelf sea, we provide ev

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Losleben, Lisa Katrin, Monica Clerici, Villads Holm, and Giuliana Panieri. "Cold seeps symphony." Septentrio Educational, no. 1 (April 28, 2023): 40–46. http://dx.doi.org/10.7557/8.7051.

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Focus: To listen to the Arctic Ocean’s sounds and to learn about the Arctic Ocean’s biodiversity, particularly near cold seeps. We will experiment with creating new sound expressions inspired by the Ocean. For pupils with hearing impairment, pupils can create a bodily expression of this and/or use instruments they are comfortable with. Learning objectives: With this activity pupils will start to understand: The multitude of sounds audible in the Ocean and near to cold seeps at the sea-bed. That the oceans, including the Arctic Ocean, harbors great biodiversity. What an oceanographic ship is, a

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22

Voss, Maren, Hermann W. Bange, Joachim W. Dippner, Jack J. Middelburg, Joseph P. Montoya, and Bess Ward. "The marine nitrogen cycle: recent discoveries, uncertainties and the potential relevance of climate change." Philosophical Transactions of the Royal Society B: Biological Sciences 368, no. 1621 (2013): 20130121. http://dx.doi.org/10.1098/rstb.2013.0121.

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The ocean's nitrogen cycle is driven by complex microbial transformations, including nitrogen fixation, assimilation, nitrification, anammox and denitrification. Dinitrogen is the most abundant form of nitrogen in sea water but only accessible by nitrogen-fixing microbes. Denitrification and nitrification are both regulated by oxygen concentrations and potentially produce nitrous oxide (N 2 O), a climate-relevant atmospheric trace gas. The world's oceans, including the coastal areas and upwelling areas, contribute about 30 per cent to the atmospheric N 2 O budget and are, therefore, a major so

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23

Ming, Wan. "Zheng He’s Seven Voyages into the Namoli Ocean–the Indian Ocean." China and Asia 1, no. 1 (2019): 92–125. http://dx.doi.org/10.1163/2589465x-00101004.

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In the history of the development of human civilization, the Silk Road has been an important route of traffic and exchange between the East and the West. From Zhang Qian’s 張騫 opening up of the Silk Road across the Western Regions (Xiyue 西域) to Zheng He’s 鄭和 sailing to the Western Oceans (xia xiyang 下西洋) more than 1500 years later, China had a continuous desire to explore beyond its borders. At the time of Zheng He, the term “Western Oceans” (xiyang 西洋) had a specific meaning. As shown by the account of Ma Huan 馬歡, who personally joined Zheng He on the voyages, the people of Ming China consider

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Stewart, Kial D., and Thomas W. N. Haine. "Thermobaricity in the Transition Zones between Alpha and Beta Oceans." Journal of Physical Oceanography 46, no. 6 (2016): 1805–21. http://dx.doi.org/10.1175/jpo-d-16-0017.1.

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AbstractThe role of the ocean in Earth’s climate is fundamentally influenced by the locally dominant stratifying property (heat or salt), which in turn can be used to categorize the ocean into three classes: alpha, beta, and transition zone oceans. Alpha and beta oceans are regions where the stratification is permanently set by heat and salt, respectively. Transition zone oceans exist between alpha and beta oceans and are regions where the stratification is seasonally or intermittently set by heat or salt. Despite their large ranges of temperature and salinity, transition zone oceans are the m

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Prados-Roman, C., C. A. Cuevas, R. P. Fernandez, D. E. Kinnison, J. F. Lamarque, and A. Saiz-Lopez. "A negative feedback between anthropogenic ozone pollution and enhanced ocean emissions of iodine." Atmospheric Chemistry and Physics Discussions 14, no. 15 (2014): 21917–42. http://dx.doi.org/10.5194/acpd-14-21917-2014.

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Abstract. Naturally emitted from the oceans, iodine compounds efficiently destroy atmospheric ozone and reduce its positive radiative forcing effects in the troposphere. Emissions of inorganic iodine have been experimentally shown to depend on the deposition to the oceans of tropospheric ozone, whose concentrations have significantly increased since 1850 as a result of human activities. A chemistry-climate model is used herein to quantify the current ocean emissions of inorganic iodine and assess the impact that the anthropogenic increase of tropospheric ozone has had on the natural cycle of i

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Prados-Roman, C., C. A. Cuevas, R. P. Fernandez, D. E. Kinnison, J.-F. Lamarque, and A. Saiz-Lopez. "A negative feedback between anthropogenic ozone pollution and enhanced ocean emissions of iodine." Atmospheric Chemistry and Physics 15, no. 4 (2015): 2215–24. http://dx.doi.org/10.5194/acp-15-2215-2015.

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Abstract. Naturally emitted from the oceans, iodine compounds efficiently destroy atmospheric ozone and reduce its positive radiative forcing effects in the troposphere. Emissions of inorganic iodine have been experimentally shown to depend on the deposition to the oceans of tropospheric ozone, whose concentrations have significantly increased since 1850 as a result of human activities. A chemistry–climate model is used herein to quantify the current ocean emissions of inorganic iodine and assess the impact that the anthropogenic increase in tropospheric ozone has had on the natural cycle of i

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Watson, Andrew J., Timothy M. Lenton, and Benjamin J. W. Mills. "Ocean deoxygenation, the global phosphorus cycle and the possibility of human-caused large-scale ocean anoxia." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375, no. 2102 (2017): 20160318. http://dx.doi.org/10.1098/rsta.2016.0318.

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The major biogeochemical cycles that keep the present-day Earth habitable are linked by a network of feedbacks, which has led to a broadly stable chemical composition of the oceans and atmosphere over hundreds of millions of years. This includes the processes that control both the atmospheric and oceanic concentrations of oxygen. However, one notable exception to the generally well-behaved dynamics of this system is the propensity for episodes of ocean anoxia to occur and to persist for 10 5 –10 6 years, these ocean anoxic events (OAEs) being particularly associated with warm ‘greenhouse’ clim

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Thomas, H., L. S. Schiettecatte, K. Suykens, et al. "Enhanced ocean carbon storage from anaerobic alkalinity generation in coastal sediments." Biogeosciences 6, no. 2 (2009): 267–74. http://dx.doi.org/10.5194/bg-6-267-2009.

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Abstract. The coastal ocean is a crucial link between land, the open ocean and the atmosphere. The shallowness of the water column permits close interactions between the sedimentary, aquatic and atmospheric compartments, which otherwise are decoupled at long time scales (≅ 1000 yr) in the open oceans. Despite the prominent role of the coastal oceans in absorbing atmospheric CO2 and transferring it into the deep oceans via the continental shelf pump, the underlying mechanisms remain only partly understood. Evaluating observations from the North Sea, a NW European shelf sea, we provide evidence

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Waugh, Darryn W., Francois Primeau, Tim DeVries, and Mark Holzer. "Recent Changes in the Ventilation of the Southern Oceans." Science 339, no. 6119 (2013): 568–70. http://dx.doi.org/10.1126/science.1225411.

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Surface westerly winds in the Southern Hemisphere have intensified over the past few decades, primarily in response to the formation of the Antarctic ozone hole, and there is intense debate on the impact of this on the ocean's circulation and uptake and redistribution of atmospheric gases. We used measurements of chlorofluorocarbon-12 (CFC-12) made in the southern oceans in the early 1990s and mid- to late 2000s to examine changes in ocean ventilation. Our analysis of the CFC-12 data reveals a decrease in the age of subtropical subantarctic mode waters and an increase in the age of circumpolar

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Rajan, Kanna, Fernando Aguado, Pierre Lermusiaux, João Borges de Sousa, Ajit Subramaniam, and Joaquin Tintore. "METEOR: A Mobile (Portable) ocEan roboTic ObsErvatORy." Marine Technology Society Journal 55, no. 3 (2021): 74–75. http://dx.doi.org/10.4031/mtsj.55.3.42.

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Abstract The oceans make this planet habitable and provide a variety of essential ecosystem services ranging from climate regulation through control of greenhouse gases to provisioning about 17% of protein consumed by humans. The oceans are changing as a consequence of human activity but this system is severely under sampled. Traditional methods of studying the oceans, sailing in straight lines, extrapolating a few point measurements have not changed much in 200 years. Despite the tremendous advances in sampling technologies, we often use our autonomous assets the same way. We propose to use t

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Takahashi, J., Y. Itoh, T. Matsuo, Y. Oasa, Y. P. Bach, and M. Ishiguro. "Polarimetric signature of the oceans as detected by near-infrared Earthshine observations." Astronomy & Astrophysics 653 (September 2021): A99. http://dx.doi.org/10.1051/0004-6361/202039331.

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Context. The discovery of an extrasolar planet with an ocean has crucial importance in the search for life beyond Earth. The polarimetric detection of specularly reflected light from a smooth liquid surface is anticipated theoretically, though the polarimetric signature of Earth’s oceans has not yet been conclusively detected in disk-integrated planetary light. Aims. We aim to detect and measure the polarimetric signature of the Earth’s oceans. Methods. We conducted near-infrared polarimetry for lunar Earthshine and collected data on 32 nights with a variety of ocean fractions in the Earthshin

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Nakayama, A., T. Kodama, M. Ikoma, and Y. Abe. "Runaway climate cooling of ocean planets in the habitable zone: a consequence of seafloor weathering enhanced by melting of high-pressure ice." Monthly Notices of the Royal Astronomical Society 488, no. 2 (2019): 1580–96. http://dx.doi.org/10.1093/mnras/stz1812.

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ABSTRACT Terrestrial planets covered globally with thick oceans (termed ocean planets) in the habitable zone were previously inferred to have extremely hot climates in most cases. This is because H2O high-pressure (HP) ice on the seafloor prevents chemical weathering and, thus, removal of atmospheric CO2. Previous studies, however, ignored melting of the HP ice and horizontal variation in heat flux from oceanic crusts. Here, we examine whether high heat fluxes near the mid-ocean ridge melt the HP ice and thereby remove atmospheric CO2. We develop integrated climate models of an Earth-size ocea

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Qiao, Xin, Ke Zhang, and Weimin Huang. "Impacts of Climate Change on Oceans and Ocean-Based Solutions: A Comprehensive Review from the Deep Learning Perspective." Remote Sensing 17, no. 13 (2025): 2306. https://doi.org/10.3390/rs17132306.

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Climate change poses significant threats to oceans, leading to ocean acidification, sea level rise, and sea ice loss and so on. At the same time, oceans play a crucial role in climate change mitigation and adaptation, offering solutions such as renewable energy and carbon sequestration. Moreover, the availability of diverse ocean data sources, both remote sensing observations and in situ measurements, provides unprecedented opportunities to monitor these processes. Remote sensing data, with its extensive spatial coverage and accessibility, forms the foundation for accurately capturing changes

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Ishida, Akio, Yoshikazu Sasai, and Yasuhiro Yamanaka. "Role of Eddies in Chlorofluorocarbon Transport in Wind-Driven Oceanic Layers." Journal of Physical Oceanography 37, no. 10 (2007): 2491–508. http://dx.doi.org/10.1175/jpo3125.1.

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Abstract In this study the global distribution and transport of chlorofluorocarbons (CFCs) in the oceans are investigated using a high-resolution numerical model. The authors focus on the effects of wind-driven processes such as subduction and ventilation on the distribution of CFC-11 within surface and thermocline layers. Local maxima of tracer inventory are identified in oceanic regions. Two major absorption regions in the South Pacific Ocean are located west of South America and northeast of New Zealand in boundary latitudes between subtropical and subantarctic areas. In the North Pacific a

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Holmes, Thomas M., Zanna Chase, Pier van der Merwe, Ashley T. Townsend, and Andrew R. Bowie. "Detection, dispersal and biogeochemical contribution of hydrothermal iron in the ocean." Marine and Freshwater Research 68, no. 12 (2017): 2184. http://dx.doi.org/10.1071/mf16335.

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This review aims to bring into focus the current understanding of hydrothermal systems and plume dynamics, tracers of hydrothermalism and the contribution of iron from hydrothermal vents to the global oceanic iron budget. The review then explores hydrothermal effect on surface ocean productivity. It is now well documented that scarcity of iron limits the production of chlorophyll-producing organisms in many regions of the ocean that are high in macronutrients. However, it is only recently that hydrothermal inputs have gained recognition as a source of Fe to the deep oceans that may potentially

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Ghosal, Abhisek. "Precarious Oceans and Vulnerability: Micropolitics of Care in Romesh Gunesekera’s Reef." Southeast Asian Review of English 61, no. 1 (2024): 80–102. http://dx.doi.org/10.22452/sare.vol61no1.6.

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Inoperative grammatology of post(g)locality followed by the incremental desires of neoliberal elites to marketize abundant oceanic resources scattered across the world renders the oceans extremely vulnerable—an appalling phenomenon which at once lays bare the vulnerability of the oceans conditioned by the strands of ‘precariousness’ and at times calls for the actualization of ‘micropolitics of care’—an ethically sound exercise which seems to be able to hold the oceans back from being economically subjected to the predatory ‘faces’ of contemporary neoliberal precarity. In this context, Romesh G

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Rovira-Navarro, Marc, Isamu Matsuyama, and Hamish C. F. C. Hay. "Thin-shell Tidal Dynamics of Ocean Worlds." Planetary Science Journal 4, no. 2 (2023): 23. http://dx.doi.org/10.3847/psj/acae9a.

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Abstract Several solar system moons harbor subsurface water oceans; extreme internal heating or solar irradiation can form magma oceans in terrestrial bodies. Tidal forces drive ocean currents, producing tidal heating that affects the thermal−orbital evolution of these worlds. If the outermost layers (ocean and overlying shell) are thin, tidal dynamics can be described using thin-shell theory. Previous work assumed that the ocean and shell's thickness and density are uniform. We present a formulation of thin-shell dynamics that relaxes these assumptions and apply it to several cases of interes

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Xie, Le, Wei Wei, Lanlan Cai, et al. "A global viral oceanography database (gVOD)." Earth System Science Data 13, no. 3 (2021): 1251–71. http://dx.doi.org/10.5194/essd-13-1251-2021.

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Abstract. Virioplankton are a key component of the marine biosphere in maintaining diversity of microorganisms and stabilizing ecosystems. They also contribute greatly to nutrient cycles/cycling by releasing organic matter after lysis of hosts. In this study, we constructed the first global viral oceanography database (gVOD) by collecting 10 931 viral abundance (VA) data and 727 viral production (VP) data, along with host and relevant oceanographic parameters when available. Most VA data were obtained in the North Atlantic (32 %) and North Pacific (29 %) oceans, while the southeast Pacific and

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Yuliantiningsih, Aryuni, Hartiwiningsih, Ade Maman Suherman, and Emmy Latifah. "Law and Justice for the Oceans: Study on Illegal, Unreported and Unregulated Fishing and Related Crimes." E3S Web of Conferences 47 (2018): 06006. http://dx.doi.org/10.1051/e3sconf/20184706006.

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This article examined the ethical and moral dimensions of Illegal, Unreported and Unregulated fishing and related crimes and explores the means to realize justice for the oceans. It needed a new paradigm for addressing the issues. The methods of discussion used statute approach and philosophical approach. Based on the research, it was known that IUU fishing related to other crimes and Transnational Organized Crime, so it was necessary to recognize the concept of transnational organized fisheries crime. The IPOA-IUU fishing and UNCLOS 1982 were not adequate to counter it. In the terms of ethics

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Sainger, Garima. "Microplastic Pollution in Oceans: A Barrier to Achieve Low Carbon Society." IOP Conference Series: Earth and Environmental Science 1279, no. 1 (2023): 012021. http://dx.doi.org/10.1088/1755-1315/1279/1/012021.

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Abstract A society is known as low carbon society where individuals cut down the amount of carbon dioxide (CO2) emissions generated from different human activities without affecting any development needs. The increasing presence of carbon emissions has increased the need for urgent actions in this regard. To mitigate the effect of climate change ocean’s contribution is remarkable. But humans are treating oceans to dispose of their waste, which is affecting the ocean’s capacity of carbon sequestration. Out of all the pollution entering into oceans, (micro) plastic pollution is the most observab

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Mührel, Jasper. "Ocean Rights – Challenges and Prospects." Goettingen Journal of International Law 15, no. 2 (2025): 242–63. https://doi.org/10.59609/1868-1581-2321.

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The pressing environmental crises of the Anthropocene are inherently connected to ocean health. Yet, the oceans are currently in a critical state. The article explores the idea of giving rights to oceans as one way to enhance their legal protection. It draws on scholarship and practice regarding the existing legal rights of nature, and discusses the challenges and prospects of ocean rights. In doing so, the article raises and addresses three fundamental questions for the recognition of such rights: first, why oceans should hold their own rights in the first place; second, who, i.e. what exact

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Marinha, Marcelo Diniz Santa, Danian S. Oliveira, Paulo Eduardo Miranda Cunha, and Luiz Gallisa Guimarães. "DISCRETE AIRY BEAM PROPAGATION IN DEEP OCEANS." Revista Brasileira de Geofísica 36, no. 4 (2018): 1. http://dx.doi.org/10.22564/rbgf.v36i4.1969.

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ABSTRACT. In this work, based on the theory of modal propagation of acoustic energy in deep oceans and using the analogy between acoustics and quantum mechanics, we show that it is possible the existence of almost dispersionless Airy beams propagation at great distances with simultaneous wave packet shape preservation.Keywords: Normal modes, wave propagation, ocean acoustics, Airy beam.RESUMO. Neste trabalho, baseado na teoria de propagação da energia acústica por modos em oceanos profundos, mostraremos que é possível a existência de feixes de Airy que se propagam em grandes distâncias, com po

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Torma, Franziska. "Frontiers of Visibility." Transfers 3, no. 2 (2013): 24–46. http://dx.doi.org/10.3167/trans.2013.030203.

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This article deals with the history of underwater film and the role that increased mobility plays in the exploration of nature. Drawing on research on the exploration of the ocean, it analyzes the production of popular images of the sea. The entry of humans into the depths of the oceans in the twentieth century did not revitalize myths of mermaids but rather retold oceanic myths in a modern fashion. Three stages stand out in this evolution of diving mobility. In the 1920s and 1930s, scenes of divers walking under water were the dominant motif. From the 1940s to the 1960s, use of autonomous div

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Liu, Chuntao, Shoichi Shige, Yukari N. Takayabu, and Edward Zipser. "Latent Heating Contribution from Precipitation Systems with Different Sizes, Depths, and Intensities in the Tropics." Journal of Climate 28, no. 1 (2014): 186–203. http://dx.doi.org/10.1175/jcli-d-14-00370.1.

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Abstract Latent heating (LH) from precipitation systems with different sizes, depths, and convective intensities is quantified with 15 years of LH retrievals from version 7 Precipitation Radar (PR) products of the Tropical Rainfall Measuring Mission (TRMM). Organized precipitation systems, such as mesoscale convective systems (MCSs; precipitation area &gt; 2000 km2), contribute to 88% of the LH above 7 km over tropical land and 95% over tropical oceans. LH over tropical land is mainly from convective precipitation, and has one vertical mode with a peak from 4 to 7 km. There are two vertica

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Visser, A. W. "OCEAN SCIENCE: Biomixing of the Oceans?" Science 316, no. 5826 (2007): 838–39. http://dx.doi.org/10.1126/science.1141272.

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Hegerl, G. C. "OCEAN SCIENCE: Warming the World's Oceans." Science 309, no. 5732 (2005): 254–55. http://dx.doi.org/10.1126/science.1114456.

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Haward, Marcus. "National ocean governance and sustainable oceans." Australian Journal of Maritime & Ocean Affairs 8, no. 4 (2016): 267–68. http://dx.doi.org/10.1080/18366503.2016.1254897.

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Lauro, Federico M., Diane McDougald, Torsten Thomas, et al. "The genomic basis of trophic strategy in marine bacteria." Proceedings of the National Academy of Sciences 106, no. 37 (2009): 15527–33. http://dx.doi.org/10.1073/pnas.0903507106.

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Abstract (sommario):

Many marine bacteria have evolved to grow optimally at either high (copiotrophic) or low (oligotrophic) nutrient concentrations, enabling different species to colonize distinct trophic habitats in the oceans. Here, we compare the genome sequences of two bacteria,Photobacterium angustumS14 andSphingopyxis alaskensisRB2256, that serve as useful model organisms for copiotrophic and oligotrophic modes of life and specifically relate the genomic features to trophic strategy for these organisms and define their molecular mechanisms of adaptation. We developed a model for predicting trophic lifestyle

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Møller-Olsen, Astrid. "Space Oceans." Prism 21, no. 2 (2024): 417–35. https://doi.org/10.1215/25783491-11825635.

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Abstract This article looks at how contemporary Chinese writers tackle established space and sea adventure themes, such as the imperialist connotations of the Pacific in postwar Japanese science fiction, the idea of the ocean as a resource-rich frontier for humanity in Arthur C. Clarke's works, or the ocean as a space of encounter with the dangerously alien in the work of Zheng Wenguang 鄭文光, and revisits them from a posthuman feminist perspective as they explore the oceans of outer space. The article first visits the alien seascapes of Titan in Chi Hui's 迟卉 “Deep Sea Fish” (Shenhai yu 深海鱼), wi

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Armitage, David. "World History as Oceanic History: Beyond Braudel." Historical Review/La Revue Historique 15, no. 1 (2019): 341. http://dx.doi.org/10.12681/hr.20462.

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Until recently, most historians shared a prejudice in favour of the history of land, territory and their human inhabitants. Yet two-thirds of the world’s surface is water and much of human history has been conducted on its shores, around its seas and across its oceans. This article proposes reimagining the history of the world through its oceans and seas and examines the multiple genealogies of oceanic history, Mediterranean, Pacific and Atlantic among them. It argues that these models do not exhaust the potential for an oceanic history of the world. It takes the example of the Atlantic and it

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