Relevant bibliographies by topics / Oceans worlds

Academic literature on the topic 'Oceans worlds'

Author: Grafiati
Published: 8 June 2024

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Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Journal articles on the topic "Oceans worlds":

1

Rovira-Navarro, Marc, Isamu Matsuyama, and Hamish C. F. C. Hay. "Thin-shell Tidal Dynamics of Ocean Worlds." Planetary Science Journal 4, no. 2 (February 1, 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 interest. The tidal response of unstratified oceans of constant thickness is given by surface gravity and Rossby waves, which can resonate with the tidal force. The oceans of the outer solar system are too thick for gravity wave resonances, but high-amplitude Rossby waves can be excited in moons with high orbital obliquity. We find that meridional ocean thickness variations hinder the excitation of Rossby waves, decreasing tidal dissipation and increasing the inclination damping timescale, which allows us to reconcile the present inclination of the Moon with the existence of a past long-lived magma ocean and to explain the inclination of Titan and Callisto without invoking a recent excitation. Stratified oceans can support internal gravity waves. We show that dissipation due to internal waves can exceed that resulting from surface gravity waves. For Enceladus, it can be close to the moon’s thermal output, even if the ocean is weakly stratified. Shear due to internal waves can result in Kelvin–Helmholtz instabilities and induce ocean mixing.
2

Jansen, Malte F., Wanying Kang, Edwin S. Kite, and Yaoxuan Zeng. "Energetic Constraints on Ocean Circulations of Icy Ocean Worlds." Planetary Science Journal 4, no. 6 (June 1, 2023): 117. http://dx.doi.org/10.3847/psj/acda95.

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Abstract Globally ice-covered oceans have been found on multiple moons in the solar system and may also have been a feature of Earth’s past. However, relatively little is understood about the dynamics of these ice-covered oceans, which affect not only the physical environment but also any potential life and its detectability. A number of studies have simulated the circulation of icy-world oceans, but have come to seemingly widely different conclusions. To better understand and narrow down these diverging results, we discuss the energetic constraints for the circulation on ice-covered oceans, focusing in particular on Snowball Earth, Europa, and Enceladus. The energy input that can drive ocean circulation on ice-covered bodies can be associated with heat and salt fluxes at the boundaries as well as ocean tides and librations. We show that heating from the solid core balanced by heat loss through the ice sheet can drive an ocean circulation, but the resulting flows would be relatively weak and strongly affected by rotation. Salt fluxes associated with freezing and melting at the ice sheet boundary are unlikely to energetically drive a circulation, although they can shape the large-scale circulation when combined with turbulent mixing. Ocean tides and librations may provide an energy source for such turbulence, but the magnitude of this energy source remains highly uncertain for the icy moons, which poses a major obstacle to predicting the ocean dynamics of icy worlds and remains an important topic for future research.
3

Castillo-Rogez, Julie C., and Klára Kalousová. "Ocean Worlds In Our Solar System." Elements 18, no. 3 (June 1, 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.
4

Rigby, Frances E., and Nikku Madhusudhan. "On the ocean conditions of Hycean worlds." Monthly Notices of the Royal Astronomical Society 529, no. 1 (February 27, 2024): 409–24. http://dx.doi.org/10.1093/mnras/stae413.

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ABSTRACT Recent studies have suggested the possibility of Hycean worlds, characterized by deep liquid water oceans beneath H2-rich atmospheres. These planets significantly widen the range of planetary properties over which habitable conditions could exist. We conduct internal structure modelling of Hycean worlds to investigate the range of interior compositions, ocean depths and atmospheric mass fractions possible. Our investigation explicitly considers habitable oceans, where the surface conditions are limited to those that can support potential life. The ocean depths depend on the surface gravity and temperature, confirming previous studies, and span 10s to ∼1000 km for Hycean conditions, reaching ocean base pressures up to ∼6 × 104 bar before transitioning to high-pressure ice. We explore in detail test cases of five Hycean candidates, placing constraints on their possible ocean depths and interior compositions based on their bulk properties. We report limits on their atmospheric mass fractions admissible for Hycean conditions, as well as those allowed for other possible interior compositions. For the Hycean conditions considered, across these candidates we find the admissible mass fractions of the H/He envelopes to be ≲10−3. At the other extreme, the maximum H/He mass fractions allowed for these planets can be up to ∼4–8 per cent, representing purely rocky interiors with no H2O layer. These results highlight the diverse conditions possible among these planets and demonstrate their potential to host habitable conditions under vastly different circumstances to the Earth. Upcoming JWST observations of candidate Hycean worlds will allow for improved constraints on the nature of their atmospheres and interiors.
5

Boström, Mathias, Victoria Esteso, Johannes Fiedler, Iver Brevik, Stefan Yoshi Buhmann, Clas Persson, Sol Carretero-Palacios, Drew F. Parsons, and Robert W. Corkery. "Self-preserving ice layers on CO2 clathrate particles: Implications for Enceladus, Pluto, and similar ocean worlds." Astronomy & Astrophysics 650 (June 2021): A54. http://dx.doi.org/10.1051/0004-6361/202040181.

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Context. Gas hydrates can be stabilised outside their window of thermodynamic stability by the formation of an ice layer – a phenomenon termed self-preservation. This can lead to a positive buoyancy for clathrate particles containing CO2 that would otherwise sink in the oceans of Enceladus, Pluto, and similar oceanic worlds. Aims. Here we investigate the implications of Lifshitz forces and low occupancy surface regions on type I clathrate structures for their self-preservation through ice layer formation, presenting a plausible model based on multi-layer interactions through dispersion forces. Methods. We used optical data and theoretical models for the dielectric response for water, ice, and gas hydrates with a different occupancy. Taking this together with the thermodynamic Lifshitz free energy, we modelled the energy minima essential for the formation of ice layers at the interface between gas hydrate and liquid water. Results. We predict the growth of an ice layer between 0.01 and 0.2 μm thick on CO, CH4, and CO2 hydrate surfaces, depending on the presence of surface regions depleted in gas molecules. Effective hydrate particle density is estimated, delimiting a range of particle size and compositions that would be buoyant in different oceans. Over geological time, the deposition of floating hydrate particles could result in the accumulation of kilometre-thick gas hydrate layers above liquid water reservoirs and below the water ice crusts of their respective ocean worlds. On Enceladus, the destabilisation of near-surface hydrate deposits could lead to increased gas pressures that both drive plumes and entrain stabilised hydrate particles. Furthermore, on ocean worlds, such as Enceladus and particularly Pluto, the accumulation of thick CO2 or mixed gas hydrate deposits could insulate its ocean against freezing. In preventing freezing of liquid water reservoirs in ocean worlds, the presence of CO2-containing hydrate layers could enhance the habitability of ocean worlds in our Solar System and on the exoplanets and exomoons beyond.
6

Boley, Kiersten M., Wendy R. Panero, Cayman T. Unterborn, Joseph G. Schulze, Romy Rodríguez Martínez, and Ji Wang. "Fizzy Super-Earths: Impacts of Magma Composition on the Bulk Density and Structure of Lava Worlds." Astrophysical Journal 954, no. 2 (September 1, 2023): 202. http://dx.doi.org/10.3847/1538-4357/acea85.

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Abstract Lava worlds are a potential emerging population of Super-Earths that are on close-in orbits around their host stars, with likely partially molten mantles. To date, few studies have addressed the impact of magma on the observed properties of a planet. At ambient conditions, magma is less dense than solid rock; however, it is also more compressible with increasing pressure. Therefore, it is unclear how large-scale magma oceans affect planet observables, such as bulk density. We update ExoPlex, a thermodynamically self-consistent planet interior software, to include anhydrous, hydrous (2.2 wt% H2O), and carbonated magmas (5.2 wt% CO2). We find that Earth-like planets with magma oceans larger than ∼1.5 R ⊕ and ∼3.2 M ⊕ are modestly denser than an equivalent-mass solid planet. From our model, three classes of mantle structures emerge for magma ocean planets: (1) a mantle magma ocean, (2) a surface magma ocean, and (3) one consisting of a surface magma ocean, a solid rock layer, and a basal magma ocean. The class of planets in which a basal magma ocean is present may sequester dissolved volatiles on billion-year timescales, in which a 4 M ⊕ mass planet can trap more than 130 times the mass of water than in Earth’s present-day oceans and 1000 times the carbon in the Earth’s surface and crust.
7

Quick, Lynnae C., Aki Roberge, Guadalupe Tovar Mendoza, Elisa V. Quintana, and Allison A. Youngblood. "Prospects for Cryovolcanic Activity on Cold Ocean Planets." Astrophysical Journal 956, no. 1 (October 1, 2023): 29. http://dx.doi.org/10.3847/1538-4357/ace9b6.

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Abstract We have estimated total internal heating rates and depths to possible subsurface oceans for 17 planets that may be cold ocean planets, low-mass exoplanets with equilibrium surface temperatures and/or densities that are consistent with icy surfaces and a substantial H2O content. We have also investigated the potential for tidally driven cryovolcanism and exosphere formation on these worlds. Estimated internal heating rates from tidal and radiogenic sources are large enough that all planets in our study may harbor subsurface oceans, and their geological activity rates are likely to exceed the geological activity rates on Jupiter’s moon Europa. Several planets are likely to experience enhanced volcanic activity rates that exceed that of Io. Owing to their relatively thin ice shells and high rates of internal heating, Proxima Cen b and LHS 1140 b are the most favorable candidates for telescopic detection of explosive, tidally driven cryovolcanism. Estimates for thin ice shells on Proxima Cen b, LHS 1140 b, Trappist-1f, and several Kepler planets suggest that any H2O vented into space during explosive cryovolcanic eruptions on these worlds could be sourced directly from their subsurface oceans. Like the icy moons in our outer solar system, cold ocean planets may be astrobiologically significant worlds that harbor habitable environments beneath their icy surfaces. These possibilities should be considered during analyses of observational data for small exoplanets from current and upcoming telescopes and during planning for a future space telescope mission aimed at characterization of potentially habitable exoplanets (e.g., Habitable Worlds Observatory).
8

Demissie, Fassil. "Living across worlds and oceans – an introduction." African and Black Diaspora: An International Journal 9, no. 2 (March 9, 2016): 125–33. http://dx.doi.org/10.1080/17528631.2016.1153812.

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9

Napoleoni, Maryse, Lucía Hortal Sánchez, Nozair Khawaja, Bernd Abel, Christopher R. Glein, Jon K. Hillier, and Frank Postberg. "Probing the Oxidation State of Ocean Worlds with SUDA: Fe (ii) and Fe (iii) in Ice Grains." Planetary Science Journal 5, no. 4 (April 1, 2024): 95. http://dx.doi.org/10.3847/psj/ad2462.

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Abstract Characterizing the geochemistry of Europa and Enceladus is a key step for astrobiology investigations looking for evidence of life in their subsurface oceans. Transition metals with several oxidation states, such as iron, may be tracers of the oxidation state of icy ocean moon interiors. Their detection, as well as the characterization of their oxidation states, on the moons’ (plume) ice grains would bring valuable new information about the geochemistry of both the subsurface oceans and surface processes. Impact ionization mass spectrometers such as the SUDA instrument on board Europa Clipper can analyze ice grains ejected from icy moons’ surfaces and detect ocean-derived salts therein. Here we record mass spectra analogs for SUDA using the Laser Induced Liquid Beam Ion Desorption technique for Fe2+ and Fe3+ salts (both sulfates and chlorides). We show that impact ionization mass spectrometers have the capability to detect and differentiate ferrous (Fe2+) from ferric (Fe3+) ions in both cation and anion modes owing to their tendency to form distinct ionic complexes with characteristic spectral features. Peaks bearing Fe3+, such as [Fe3+ (OH)2]+ and [Fe3+ (OH) a Cl b ]−, are particularly important to discriminate between the two oxidation states of iron in the sample. The recorded analog spectra may allow the characterization of the oxidation state of the oceans of Europa and Enceladus with implications for hydrothermal processes and potential metabolic pathways for life forms in their subsurface oceans.
10

JS, Craven. "Lands Abutting Seas, Oceans, 85% of Worlds Coronavirus Deaths." Journal of Biomedical Research & Environmental Sciences 3, no. 4 (April 2022): 397–405. http://dx.doi.org/10.37871/jbres1455.

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The Worldometer Coronavirus registered six million deaths on March 03, 2022. 85% of the deaths occurred in lands directly abutting the World Seas and Oceans. The WHO, CDC and other World Public Health Organizations suggest that humidity can aid in the fight against COVID-19 [1]. The boundary of this comment is that it is directed at indoor air quality with perspective that 40-60% humidity is positive against COVID-19. The fact that almost all the World COVID-19 deaths are in lands directly abutting the Major World Seas and Oceans, with their inherent natural humidity, does not seem to be addressed in technical literature. There seems to be a conflict. This paper provides a breakdown of the World’s deadliest coronavirus regions at the six million death milestone, compares it to the earlier evaluation by the author captured in a WordPress website [2-10], and provides an in depth breakdown of the pandemic deaths and death rates in the lands abutting the Major World Seas and Oceans. Maps are provided showing the surrounding Countries or States of Countries with death and death rate tables for each of the World’s Major bodies of water. These are startling in similarity.
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Journal articles Dissertations / Theses Books

Dissertations / Theses on the topic "Oceans worlds":

1

Ludwig, Wolfgang. "Continental erosion and river transport of organic carbon to the world's oceans." Université Louis Pasteur (Strasbourg) (1971-2008), 1996. http://www.theses.fr/1996STR13246.

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L'objectif scientifique de cette etude est de quantifier a l'echelle globale les flux de carbone organique apportes chaque annees aux oceans, afin d'evaluer le role de ces flux dans le cycle global du carbone. Les flux de carbone organique concernent, de maniere a peu pres equivalente, le carbone organique dissous (cod) et le carbone organique particulaire (cop). Pour ces deux formes de carbone, les facteurs de controle sont identifies et des modeles empiriques sont etabli pour extrapoler les flux a l'echelle globale et regionale. Ces flux etant fortement associes aux flux d'eau (cod, cop) et de sediments (cop), une telle investigation n'est possible qu'avec un examen detaille des facteurs principaux de controle de ces deux parametres cles a l'echelle globale. L'approche de cette etude est basee sur un ensemble de 60 grands fleuves du monde. Les caracteristiques hydroclimatiques, biologiques, geomorphologiques et lithologiques des bassins versants de ces fleuves sont extraites d'un grand nombre de banques de donnees globales a partir des contours digitalises de ces bassins. Ensuite, ces caracteristiques sont utilisees pour des analyses statistiques avec les donnees de la litterature sur les flux de carbone, d'eau et des sediments dans ces fleuves. Lorsqu'on applique le modele de regression pour le cod a la surface totale des continents a partir de l'ensemble des donnees existantes, la quantite totale de carbone organique dissous exporte vers les oceans est estimee a environ 0,21 gigatonnes de carbone par an (gtc/an). Pour le cop, cette quantite est d'environ 0,16 gtc/an. Les flux correspondant d'eaux et de sediments sont respectivement de 44400 km#3/an et 16 gt/an. Pour tous ces transports fluviaux, des cartes globales representant la distribution spatiale des flux specifiques sur les continents sont ainsi presentees, et des bilans detailles sont proposes pour les differents continents, bassins oceaniques et type de climats. Finalement, la modelisation des transports fluviaux de carbone organique est couplee a une modelisation de carbone inorganique developpee par amiotte-suchet 1995
2

Koscheva-Scissons, Chloe. "Crossing Oceans with Words: Diplomatic Communication during the Vietnam War, 1945-1969." Bowling Green State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1426004411.

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3

Cheon, Woo Geunn. "Impact of the Southern ocean winds on sea-ice - ocean interaction and its associated global ocean circulation in a warming world." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3029.

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Fujio, Shinzo. "Diagnostically Derived World Ocean Circulation and the Water Mass Formation." 京都大学 (Kyoto University), 1992. http://hdl.handle.net/2433/168820.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである
Kyoto University (京都大学)
0048
新制・課程博士
博士(理学)
甲第4974号
理博第1371号
新制||理||765(附属図書館)
UT51-92-J21
京都大学大学院理学研究科地球物理学専攻
(主査)教授 今里 哲久, 教授 奥西 一夫, 教授 廣田 勇
学位規則第4条第1項該当
5

Holtmeier, Matthew. "Vital Coasts, Mortal Oceans: The Pearl Button as Media Environmental Philosophy." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etsu-works/7825.

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In The Pearl Button, Patricio Guzman explores the role water played in shaping how the Selk’nam inhabited the coasts of the Tierra del Fuego in Patagonia through “cosmovisions,’ sequences that extend beyond human perception, even as they link the habitation of indigenous peoples to subsequent colonial and political projects. Guzman’s “cosmovisual aesthetic” warrants dissection in the form of a video essay because of its complicated interplay between editing and shot distance, which establishes a critical bioregionalism that acknowledges the unique qualities of place, here the Tierra del Fuego, as well as the forces of globalization that threaten it. Guzman’s cosmovisual aesthetic ranges from extreme close-ups to reveal minute details in objects to aerial shots that articulate the shapes of coasts and even to telescopic shots depicting planets and nebulae. He works with archival photography and the superimposition of images/sounds in order to create a pluriverse of peoples and environments, which moves beyond human audiovisual and temporal perception. In doing so, The Pearl Button links the ways in which the Selk’nam inhabited Chile, depending on its waters, to the ocean as the source of the colonial project of Spain and site of political murders under the later dictatorship of Augusto Pinochet. Guzman’s cinematic elaboration of Indigenous worldviews resonates with contemporary Chilean philosophers Humberto Maturana, Francisco Varela, and Ricardo Rozzi. From cybernetics to ecological philosophy, this video essay weaves the insights of these Chilean philosophers with Guzman’s cosomovisions in order to highlight the complex ecological insights at the intersection of Indigenous thought and film form. In particular, it extends Rozzi’s practical model of Field Environmental Philosophy to communicating ecological philosophy through media.
6

Crawfurd, Katharine. "Marine phytoplankton in a high CO2 world." Thesis, University of Dundee, 2010. https://discovery.dundee.ac.uk/en/studentTheses/82b46f33-e436-4eff-9862-e464f2761dca.

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Marine phytoplankton is responsible for ~50% of global primary productivity, it supports the oceanic food web and affects biogeochemical cycles. I participated in a large mesocosm experiment that observed altered community structure and carbon drawdown in response to increased CO2. There was a 27% reduction in community primary production at the peak of an Emiliania huxleyi-dominated bloom in mesocosms initially at 760 ppm CO2 compared to present day pCO2. There were changes in community structure but not dominance; Synechococcus and large pico-eukaryote abundances were reduced by ~60%, E. huxleyi was reduced by ~50%. A number of E. huxleyi strains persisted throughout the experiment in both treatments and no malformation or significant change in lith size occurred at increased CO2. In a second field experiment in the oligotrophic ocean off the Canary Islands, 760 ppm pCO2 did not change community structure or cell division rates of Synechococcus, Prochlorococcus or pico-eukaryotes.In laboratory experiments, I maintained the diatom, Thalassiosira pseudonana CCMP1335 at 760 ppm and present day pCO2 for ~100 generations in gas equilibrated continuous cultures – one of the longest experiments that has been attempted to investigate the effect of increased CO2 on marine phytoplankton. No clear evidence of adaptation or acclimation to increased CO2 was found, neither were there consistent changes in transcription of RuBisCO or carbonic anhydrase genes. Non-calcified E. huxleyi CCMP1516 and calcified CCMP371 grown in gas equilibrated semi-continuous cultures for several weeks showed no change in cell division rate at 760 ppm CO2. An understanding of the underlying changes in communities is required for modelling responses to increasing CO2, molecular tools may prove useful for this task. The strong community response in the mesocosms shows that rising atmospheric CO2 can greatly affect phytoplankton productivity and biogeochemical cycling.
7

Barendse, R. J. "The Arabian seas : the Indian Ocean world of the seventeenth century /." Armonk, NY [u.a.] : Sharpe, 2002. http://www.h-net.org/review/hrev-a0c6p3-aa.

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TUCCI, Serena. "Lost worlds: tales of archaic hominin admixture in Southeast Asia and Oceania." Doctoral thesis, Università degli studi di Ferrara, 2016. http://hdl.handle.net/11392/2403221.

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Sebbene studi recenti abbiano contribuito a far luce su alcuni aspetti dell’interazione tra uomo anatomicamente moderno e forme umane arcaiche, come Neandertal e Denisova, sappiamo ancora ben poco riguardo all’interazione tra popolazioni di nostri antenati e altre forme umane oggi estinte – come ad esempio l’enigmatico Homo floresiensis – con cui siamo convissuti per migliaia di anni. In questo progetto abbiamo analizzato il genoma completo (coverage ~40x) di 10 individui appartenenti ad una popolazione pigmea dell’isola di Flores, in Indonesia orientale. Il villaggio abitato da questa popolazione si trova nelle vicinanze della grotta di Liang Bua dove i fossili di H.floresiensis sono stati rinvenuti, e i suoi abitanti presentano delle caratteristiche morfologiche in comune con H. floresiensis. Abbiamo analizzato questi dati - che rappresentano anche i primi dati di genomi complete dell’Indonesia ottenuti finora - utilizzando un approccio recentemente sviluppato che consente di identificare DNA ereditato a seguito di ibridazione con specie umane arcaiche, senza la necessita’ di conoscere il genome della specie arcaica. Le nostre analisi hanno rivelato la presenza nei pigmei di Flores, di regioni genomiche divergenti, che potrebbero derivare da ibridazione con H. floresiensis e che potrebbero quindi contribuire a fornire una nuova visione della nostra interazione con specie estinte, in questa regione del mondo che e’ stata cruciale per la nostra evoluzione – e dove non e’ possibile, al momento, ottenere DNA da resti fossili. Infine, abbiamo applicato lo stesso approccio a dati di genomi completi di 1,523 individui di diverse popolazioni mondiali, che includono 35 nuovi genomi Melanesiani da noi prodotti, con lo scopo di identificare sequenze ereditate dall’ibridazione con Neandertal e Denisova. Abbiamo mostrato che l’ibridazione con i Neandertal sarebbe avvenuta numerose volte in diverse popolazioni non-Africane, abbiamo caratterizzato regioni genomiche che appaiono significativamente impoverite di sequenze arcaiche, ed infine abbiamo identificato la presenza di introgressione adattativa in questi genomi.
Although recent genetic findings have contribuited to shed light on some aspects of the interaction between anatomically modern humans and archaic hominin forms, such as Neandertals and Denisovans, very little is known about the interaction between our ancestors and other extinct species - such as the enigmatic Homo floresiensis - with which they co-existed for thousands of years. Here we analyzed 10 new high coverage genomes (~40x) from a pygmy population in the Island of Flores (Eastern Indonesia). This village is near where remains of H. floresiensis were found and its people have been reported to have morphological similarities to Homo florensiensis. We used a newly developed approach to identify DNA inherited from archaic hominin ancestor, which does not rely on ancient genomes. Moreover, our data represent to date the first complete genomes from Indonesia. Our analysis revealed the presence of highly divergent genomic regions in the Flores pygmies, that might result from past admixture with H. floresiensis, and contribuited to provide new insights on the landscape of hominin interactions in this part of the world crucial for our evolutionary history – where ancient DNA work may not be tractable. Finally, we applied the same approach to whole-genome sequences from 1,523 geographically diverse individuals, including 35 new Island Melanesian genomes with the goal of identifying sequences inherited from Neandertals and Denisovans. We showed that Neandertal admixture occurred multiple times in different non-African populations, we characterized genomic regions that are significantly depleted of archaic sequence, and identified signatures of adaptive introgression.
9

Layton, Simon. "Commerce, authority and piracy in the Indian Ocean world, c. 1780-1850." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608198.

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Müller, Malte. "A large spectrum of free oscillations of the world ocean including the full ocean loading and self-attraction effects." Berlin Heidelberg Springer, 2008. http://d-nb.info/989741702/04.

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Books on the topic "Oceans worlds":

1

Payment, Simone. Oceans: Underwater worlds. New York: Rosen Pub., 2009.

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"Oceans Connect: New Directions in Maritime Studies" (Conference) (2010 University of Hyderabad). Oceans connect: Reflections on water worlds across time and space. Delhi: Primus Books, 2013.

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Green, Jen. The world's oceans. London: Franklin Watts, 2009.

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Green, Jen. The world's oceans. Mankato, MN: Smart Apple Media, 2010.

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Sandak, Cass R. The world's oceans. New York: Franklin Watts, 1987.

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Sandak, Cass R. The world's oceans. New York: Franklin Watts, 1987.

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Baines, Francesca. Ocean worlds. Princeton: Two-Can, 2001.

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Lavery, Charne. Writing Ocean Worlds. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-87116-1.

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Wells, Susan. Illustrated world of oceans. [S.l.]: Simon & Schuster, 1993.

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Buschmann, Rainer F. Oceans in world history. New York: McGraw-Hill, 2007.

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Book chapters on the topic "Oceans worlds":

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Nemtchinov, I. V., T. V. Loseva, and A. V. Teterev. "Impacts into Oceans and Seas." In Worlds in Interaction: Small Bodies and Planets of the Solar System, 405–18. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0209-1_51.

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Castryck, Geert. "Indian Ocean worlds." In The Routledge Handbook of Transregional Studies, 102–9. Abingdon, Oxon ; New York, NY : Routledge, 2019. | Series: The Routledge history handbooks: Routledge, 2018. http://dx.doi.org/10.4324/9780429438233-13.

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Küfeoğlu, Sinan. "SDG-14: Life Below Water." In Emerging Technologies, 453–68. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07127-0_16.

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AbstractGlobal systems and processes that assure the supply of rainwater, drinking water and oxygen are regulated by oceanic temperature chemistry, currents and life. Pollution, diminished fisheries and the loss of coastal habitats all have negative impacts on the ocean’s sustainability. Such activities have severely impacted around 40% of the world’s oceans. SDG-14, Life Below Water, aims to conserve marine ecosystems by establishing regulations for removing pollutants from the sea, decreasing sea acidification and regulating the fishing sector to ensure sustainable fishing. As a result, the major incentive for this goal is to protect and utilise marine ecosystem services sustainably. This chapter presents the business models of 36 companies and use cases that employ emerging technologies and create value in SDG-14. We should highlight that one use case can be related to more than one SDG and it can make use of multiple emerging technologies.
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Adler, Antony. "Changing Narratives in the History Oceanography." In Historiographies of Science, 1–24. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-030-92679-3_8-1.

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AbstractThe formal scientific study of the oceans only gained prominence in the late nineteenth century. The earliest accounts of the development of oceanography focused on notable scientists whose contributions laid the groundwork for later oceanographic exploration. In the second half of the twentieth century, ocean sciences expanded considerably as increased government funding and technological advancements enabled more extensive research and exploration. Subsequently, scholarship on the history of oceanography grew as well, exploring themes that included the overlap of ocean science and empire, the transformative impact of World War II and the Cold War on oceanographic funding and research, and the rise of international collaboration. As the historiography of the history of oceanography evolves, scholars have increasingly adopted interdisciplinary research methods to develop more comprehensive understanding of humanity’s evolving relationship with the ocean.
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Mukherjee, Rila. "Introduction: Oceanic Worlds." In India in the Indian Ocean World, 1–26. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-6581-3_1.

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Farmer, G. Thomas, and John Cook. "The World Ocean." In Climate Change Science: A Modern Synthesis, 247–59. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-5757-8_12.

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Monin, A. S. "The World Ocean." In An Introduction to the Theory of Climate, 111–68. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4506-7_5.

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Lisitzin, A. P. "The Continental-Ocean Boundary as a Marginal Filter in the World Oceans." In Biogeochemical Cycling and Sediment Ecology, 69–103. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4649-4_4.

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Frydman, Jason. "Oceans, Archipelagoes, and World Literature." In The Routledge Companion to World Literature, 442–51. 2nd ed. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003230663-54.

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Poppenhagen, Nicole. "“Ocean People”: Maritime (Im)Mobilities in the Chinese American Imaginary." In Maritime Mobilities in Anglophone Literature and Culture, 187–210. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-91275-8_10.

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AbstractUnderstanding the ocean in both metaphorical and material terms, this essay approaches Chinese American texts from the intersection of oceanic, mobility, and Chinese American studies. While mobility has often been perceived in highly romanticized terms, in Chinese American literature the ocean is characterized by ambiguity as it becomes a site of negotiation for the role of immigrants during the era of Chinese exclusion. In Maxine Hong Kingston’s auto/biographical text China Men, Pam Chun’s family narrative The Money Dragon, poetry from Ellis Island and Angel Island, and Genny Lim’s play Paper Angels, the complex relationships between time and space, sea and land, inform the immigrants’ journey across the ocean. Their American beginnings are defined by a liberating, though often disorienting, mobility and at the same time a longed for, but mostly paralyzing immobility on and off ships and islands. To use Maxine Hong Kingston words, these circumstances of migration turn Chinese Americans into “ocean people.” Ultimately, a focus on the ship voyage and the island as oceanic tropes in Chinese American texts reveals the Chinese American experience as shaped by maritime (im)mobilities.

Conference papers on the topic "Oceans worlds":

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Sherwood, Brent, Jonathan Lunine, Christophe Sotin, Thomas Cwik, Kevin Hand, and Firouz Naderi. "Exploring the Ocean Worlds." In 2018 OCEANS - MTS/IEEE Kobe Techno-Ocean (OTO). IEEE, 2018. http://dx.doi.org/10.1109/oceanskobe.2018.8559155.

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Mikkelsen, Anders, and Narve Mjos. "The Worlds Most Efficient and Environmentaly Friendly Coastal Shipping." In OCEANS 2019 MTS/IEEE SEATTLE. IEEE, 2019. http://dx.doi.org/10.23919/oceans40490.2019.8962669.

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Westbrook, Gerald T. "The Incredible Story of the Worlds Oceans: Will Global Warming Have an Impact?" In Offshore Technology Conference. Offshore Technology Conference, 1998. http://dx.doi.org/10.4043/8689-ms.

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Klassi, J. "Ocean world." In OCEANS '85 - Ocean Engineering and the Environment. IEEE, 1985. http://dx.doi.org/10.1109/oceans.1985.1160133.

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Андрианова, О., O. Andrianova, А. Батырев, A. Batyrev, Р. Белевич, and R. Belevich. "TRENDS OF THE INTERANNUAL FLUCTUATIONS IN THE WORLD OCEAN LEVEL DURING THE LAST CENTURY." In Sea Coasts – Evolution ecology, economy. Academus Publishing, 2018. http://dx.doi.org/10.31519/conferencearticle_5b5ce386bb7293.29087345.

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The changes of the sea level in the Atlantic, Pacific, Indian Oceans and the whole World Ocean for the period from 1880 till 2010 years were examined. The estimates of the values of the sea level increasing for that time period in each of the oceans and on the west and east coasts of the Atlantic and Pacific oceans were made. For this purpose, the annual sea level data were averaged over years for 68 stations in the Atlantic Ocean, 71 stations – in the Pacific and 33 stations – the Indian. Analysis of the temporary distributions of the sea level shows that increasing of the Atlantic sea level during that period (131 years) is 24,2 cm. Sea levels of Pacific and Indian Oceans during the same period increased on smaller value, 14,5 and 12,4 cm respectively. The reason for difference between the Atlantic and the Pacific Ocean in values of sea level rising, as it seems, is significant rising of the land (raising of the East coast of the Asian continent), which was occurred in about half of the stations on the west coast of the Pacific. In the Indian Ocean the zero level of water posts was not correct for many stations, and in some cases there were low quality data. The highest maxima in the sea level in the generalized curves of the temporary distributions appear with about 10-year cycles on the sea level of all oceans that is in good correlation with El Niño years.
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Cavagnaro, Robert J., Heather R. Spence, Carrie Schmaus, Bill McShane, and Andrea Copping. "Ocean Energy for Ocean Worlds." In 17th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments. Reston, VA: American Society of Civil Engineers, 2021. http://dx.doi.org/10.1061/9780784483374.034.

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Panicker, Philip K., and Amani Magid. "Microwave Plasma Gasification for the Restoration of Urban Rivers and Lakes, and the Elimination of Oceanic Garbage Patches." In ASME 2016 10th International Conference on Energy Sustainability collocated with the ASME 2016 Power Conference and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/es2016-59632.

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This review paper describes techniques proposed for applying microwave-induced plasma gasification (MIPG) for cleaning rivers, lakes and oceans of synthetic and organic waste pollutants by converting the waste materials into energy and useful raw materials. Rivers close to urban centers tend to get filled with man-made waste materials, such as plastics and paper, gradually forming floating masses that further trap biological materials and animals. In addition, sewage from residences and industries, as well as rainwater runoff pour into rivers and lakes carrying solid wastes into the water bodies. As a result, the water surfaces get covered with a stagnant, thick layer of synthetic and biological refuse which kill the fish, harm animals and birds, and breed disease-carrying vectors. Such destruction of water bodies is especially common in developing countries which lack the technology or the means to clean up the rivers. A terrible consequence of plastic and synthetic waste being dumped irresponsibly into the oceans is the presence of several large floating masses of garbage in the worlds’ oceans, formed by the action of gyres, or circulating ocean currents. In the Pacific Ocean, there are numerous debris fields that have been labeled the Great Pacific Garbage Patch. These patches contain whole plastic litters as well as smaller pieces of plastic, called microplastics, which are tiny fragments that were broken down by the action of waves. These waste products are ingested by animals, birds and fishes, causing death or harm. Some of the waste get washed ashore on beaches along with dead marine life. The best solution for eliminating all of the above waste management problems is by the application of MIPG systems to convert solid waste materials and contaminated water into syngas, organic fuels and raw materials. MIPG is the most efficient form of plasma gasification, which is able to process the most widest range of waste materials, while consuming only about a quarter of the energy released from the feedstock. MIPG systems can be scaled in size, power rating and waste-treatment capacity to match financial needs and waste processing requirements. MIPG systems can be set up in urban locations and on the shores of the waterbody, to filter and remove debris and contaminants and clean the water, while generating electric power to feed into the grid, and fuel or raw materials for industrial use. For eliminating the pelagic debris fields, the proposed design is to have ships fitted with waste collector and filtration systems that feeds the collected waste materials into a MIPG reactor, which converts the carbonaceous materials into syngas (H2 + CO). Some of the syngas made will be used to produce the electric power needed for running the plasma generator and onboard systems, while the remainder can be converted into methanol and other useful products through the Fischer-Tropsch process. This paper qualitatively describes the implementation schemes for the above processes, wherein MIPG technology will be used to clean up major waste problems affecting the earth’s water bodies and to convert the waste into energy and raw materials in a sustainable and environmentally friendly manner, while reducing the dependence on fossil fuels and the release of carbon dioxide and methane into the atmosphere.
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Barnes, Chris R., and Verena Tunnicliffe. "Building the World's First Multi-node Cabled Ocean Observatories (NEPTUNE Canada and VENUS, Canada): Science, Realities, Challenges and Opportunities." In OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean. IEEE, 2008. http://dx.doi.org/10.1109/oceanskobe.2008.4531076.

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Ponomarev, Vladimir, Vladimir Ponomarev, Elena Dmitrieva, Elena Dmitrieva, Svetlana Shkorba, Svetlana Shkorba, Irina Mashkina, Irina Mashkina, Alexander Karnaukhov, and Alexander Karnaukhov. "CLIMATIC REGIME CHANGE IN THE ASIAN PACIFIC REGION, INDIAN AND SOUTHERN OCEANS AT THE END OF THE 20TH CENTURY." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b9475504153.46587602.

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Multiple scale climate variability in Asia of temperate and high latitudes, Pacific, Indian and South Oceans, their features and linkages are studied by using statistical analyses of monthly mean time series of Hadley, Reynolds SST, surface net heat flux (Q), atmospheric pressure (SLP), air temperature (SAT) from NCEP NCAR reanalyses (1948-2015). Three multidecadal climatic regimes were revealed for the whole area studied by using cluster analyses via Principal Components of differences between values of Q, SLP, SAT in tropical and extratropical regions of the Asian Pacific, Indian and Southern Oceans. The climate regime change in 70s of the 20th century in this area is confirmed by this method. It is also found that the climate regime is significantly changed at the end of the 20th century in both same area and World Ocean. The characteristic features of recent climate regime after 1996-1998 are SLP increase in the central extratropic area of Indian Ocean, North and South Pacific being prevailing in boreal winter. It is accompanying SLP increase and precipitation decrease in South Siberia and Mongolia prevailing in boreal summer. Inversed SLP and precipitation anomaly associated with increase of cyclone activity and extreme events in the land-ocean marginal zones including Southern Ocean, eastern Arctic, eastern Indian, western and eastern Pacific margins. It is known that low frequency PDO phase is also changed at the same time.
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Ponomarev, Vladimir, Vladimir Ponomarev, Elena Dmitrieva, Elena Dmitrieva, Svetlana Shkorba, Svetlana Shkorba, Irina Mashkina, Irina Mashkina, Alexander Karnaukhov, and Alexander Karnaukhov. "CLIMATIC REGIME CHANGE IN THE ASIAN PACIFIC REGION, INDIAN AND SOUTHERN OCEANS AT THE END OF THE 20TH CENTURY." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4316b52a9b.

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Multiple scale climate variability in Asia of temperate and high latitudes, Pacific, Indian and South Oceans, their features and linkages are studied by using statistical analyses of monthly mean time series of Hadley, Reynolds SST, surface net heat flux (Q), atmospheric pressure (SLP), air temperature (SAT) from NCEP NCAR reanalyses (1948-2015). Three multidecadal climatic regimes were revealed for the whole area studied by using cluster analyses via Principal Components of differences between values of Q, SLP, SAT in tropical and extratropical regions of the Asian Pacific, Indian and Southern Oceans. The climate regime change in 70s of the 20th century in this area is confirmed by this method. It is also found that the climate regime is significantly changed at the end of the 20th century in both same area and World Ocean. The characteristic features of recent climate regime after 1996-1998 are SLP increase in the central extratropic area of Indian Ocean, North and South Pacific being prevailing in boreal winter. It is accompanying SLP increase and precipitation decrease in South Siberia and Mongolia prevailing in boreal summer. Inversed SLP and precipitation anomaly associated with increase of cyclone activity and extreme events in the land-ocean marginal zones including Southern Ocean, eastern Arctic, eastern Indian, western and eastern Pacific margins. It is known that low frequency PDO phase is also changed at the same time.

Reports on the topic "Oceans worlds":

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Hashmi, Syed Kamran Hamid. Major Powers’ Interests in IOR including Partnerships like QUAD, AUKUS, etc., and Implications for the Region especially for Pakistan. National Institute of Maritime Affairs (NIMA), March 2023. http://dx.doi.org/10.53963/mpip.2023.978.969.nima003.

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Geo-economics and geopolitics are the indicators of competition between major powers in the pursuit of their strategic goals. The US, China, and India together make up about half of the world's GDP and are vying for dominance in the Indian Ocean. In this perspective, while being smaller than Pacific and Atlantic Oceans, Indian Ocean Region continues to be crucial because of its enormous oil and gas reserves, choke points, nautical traffic, and the interests of foreign powers. The US and Europe are heading for recession, and the Asian economic situation is better, China and India will be major engine of growth this year. Therefore, Indian Ocean will remain the focus of attention for the world. New alliances are taking place in which US and India are the key players, the sole aim being is to contain China. On the other end, China’s presence in Indian Ocean is increased in the last decade due to BRI/CPEC and military base in Djibouti. Chinese Navy is regularly patrolling and exercising with the littoral countries of the Indian Ocean. This paper endeavors to study major powers’ interests in IOR and how developing a strategic alliance requires Pakistan to be vigilant and adopt a strategy to safeguard its interests.
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Schmitz, William J., and Jr. On the World Ocean Circulation: Volume 2 The Pacific and Indian Oceans / A Global Update. Fort Belvoir, VA: Defense Technical Information Center, December 1996. http://dx.doi.org/10.21236/ada323804.

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Ozano, Kim, Andrew Roby, Alan MacDonald, Kirsty Upton, Nick Hepworth, Clare Gorman, John Matthews, et al. Groundwater: Making the Invisible Visible. Institute of Development Studies (IDS), January 2022. http://dx.doi.org/10.19088/k4d.2022.022.

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The theme for World Water Day 2022 is ‘Groundwater – Making the Invisible Visible’. Groundwater is water found underground in aquifers – geological formations of rocks, sands and gravels, that hold substantial quantities of water. Groundwater feeds springs, rivers, lakes and wetlands, and seeps into oceans. 80 percent of the world’s food depends on groundwater. It is recharged mainly from rain and snowfall infiltrating the ground, and can be extracted to the surface by pumps and wells.
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Yurovskaya, M. V., and A. V. Yushmanova. Complex Investigations of the World Ocean. Proceedings of the VI Russian Scientific Conference of Young Scientists. Edited by D. A. Alekseev, A. Yu Andreeva, I. M. Anisimov, A. V. Bagaev, Yu S. Bayandina, E. M. Bezzubova, D. F. Budko, et al. Shirshov Institute Publishing House, April 2021. http://dx.doi.org/10.29006/978-5-6045110-3-9.

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The collection contains materials of the VI All-Russian Scientific Conference of Young Scientists "Complex Investigations of the World Ocean", dedicated to the discussion of the main scientific achievements of young specialists in the field of oceanology, modern methods and means of studying the World Ocean. Within the framework of the conference, issues of modern oceanology were considered in sections: ocean physics, ocean biology, ocean chemistry, marine geology, marine geophysics, marine ecology and environmental management, oceanological technology and instrumentation, as well as interdisciplinary physical and biological research of the ocean. Along with the coverage of the results obtained in the course of traditional oceanological expeditionary research, attention was paid to the development of modern methods of studying the ocean: numerical modeling and remote sensing methods of the Earth from space.
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Bolton, Laura. Effectiveness of Sustainable Marine Economy Interventions. Institute of Development Studies (IDS), July 2021. http://dx.doi.org/10.19088/k4d.2021.128.

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Large development intervention programmes termed ‘marine economy’ or ‘blue economy’ are in their early stages and do not yet have results on effectiveness. Reports on the effectiveness of activities which could be considered under the blue economy umbrella were identified although more general reports of success than specific evidence. The World Bank programme, Problue, is a multi-donor trust fund aiming to achieve sustainable economic development in healthy oceans. The latest annual review of the programme lists achievements in terms of number of activities, proposals accepted, and beneficiaries. Effectiveness outcomes were not yet available. Progress has been made in developing frameworks and tools to assist governments to develop roadmaps. The Organisation for Economic Co-operation and Development (OECD) is undertaking a large number of activities in support of sustainable ocean economies which are also in early stages.
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Nowlin, Worth D., and Jr. World Ocean Circulation Experiment: Support for U.S. WOCE Office. Fort Belvoir, VA: Defense Technical Information Center, September 2001. http://dx.doi.org/10.21236/ada390257.

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Tian, Nan, Diego Lopes da Silva, Xiao Liang, and Lorenzo Scarazzato. Trends in World Military Expenditure, 2023. Stockholm International Peace Research Institute, April 2024. http://dx.doi.org/10.55163/bqga2180.

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World military expenditure increased for the ninth consecutive year in 2023, reaching a total of $2443 billion. The 6.8 per cent increase in 2023 was the steepest year-on-year rise since 2009 and pushed global spending to the highest level SIPRI has ever recorded. The world military burden—defined as military spending as a percentage of global gross domestic product (GDP)—increased to 2.3 per cent in 2023. Average military expenditure as a share of government expenditure rose by 0.4 percentage points to 6.9 per cent in 2023 and world military spending per person was the highest since 1990, at $306. The rise in global military spending in 2023 can be attributed primarily to the ongoing war in Ukraine and escalating geopolitical tensions in Asia and Oceania and the Middle East. Military expenditure went up in all five geographical regions, with major spending increases recorded in Europe, Asia and Oceania and the Middle East. This SIPRI Fact Sheet highlights trends in military expenditure for 2023 and over the decade 2014–23. The data, which replaces all military spending data previously published by SIPRI, comes from the updated SIPRI Military Expenditure Database.
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Nowlin, Jr, and Worth D. World Ocean Circulation Experiment: Support for the U.S. WOCE Office. Fort Belvoir, VA: Defense Technical Information Center, September 2001. http://dx.doi.org/10.21236/ada622495.

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Nowlin, Jr, and Worth D. World Ocean Circulation Experiment: Support for the U.S. WOCE Office. Fort Belvoir, VA: Defense Technical Information Center, August 2002. http://dx.doi.org/10.21236/ada626359.

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Mertenat, Adeline, and Christian Zurbrügg. Planning for Zero-Waste at schools - a toolkit. Swiss Federal Institute of Aquatic Science and Technology, Eawag, February 2024. http://dx.doi.org/10.55408/eawag:32419.

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Solid waste management (SWM) is a universal issue affecting every single person in the world: everywhere, tremendous challenges are faced to cope with the growing amounts of waste produced daily, as a result of population and urbanization growth. While sound waste management is key to protect the environment and human health, nowadays 2 billion people still lack access to solid waste collection service, while 3 billion people lack access to controlled disposal facilities. This results in tremendous amounts of waste being littered, dumped or openly burnt, contaminating water, groundwater and the world’s oceans. Such practices are causing floods by clogging drainage systems, attracting pests, rodents and other disease vectors, increasing respiratory problem, greenhouse gas emissions, enhancing climate change, while impacting negatively on biodiversity and increasing resources depletion.

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