Academic literature on the topic 'Thermohaline change'

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Journal articles on the topic "Thermohaline change"

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Liu, Zhengyu. "Instability of Atlantic Meridional Overturning Circulation: Observations, Modelling and Relevance to Present and Future." Atmosphere 14, no. 6 (2023): 1011. http://dx.doi.org/10.3390/atmos14061011.

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The Atlantic Meridional Overturning Circulation (AMOC) has changed dramatically during the glacial–interglacial cycle. One leading hypothesis for these abrupt changes is thermohaline instability. Here, I review recent progress towards understanding thermohaline instability in both observations and modelling. Proxy records available seem to favor thermohaline instability as the cause of the abrupt climate changes during the glacial–deglacial period because the deep North Atlantic water mass and AMOC seemed to have changed before the North Atlantic climate. However, most fully Coupled General Ci
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Schatterer, Ulrich, and Peter Anderman. "Thermohaline Circulation – Rapid Climate Change?" GAIA - Ecological Perspectives for Science and Society 8, no. 3 (1999): 193–96. http://dx.doi.org/10.14512/gaia.8.3.7.

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Anthoff, David, Francisco Estrada, and Richard S. J. Tol. "Shutting Down the Thermohaline Circulation." American Economic Review 106, no. 5 (2016): 602–6. http://dx.doi.org/10.1257/aer.p20161102.

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Past climatic changes were caused by a slowdown of the thermohaline circulation. We use results from experiments with three climate models to show that the expected cooling due to a slowdown of the thermohaline circulation is less in magnitude than the expected warming due to increasing greenhouse gas concentrations. The integrated assessment model FUND and a meta-analysis of climate impacts are used to evaluate the change in human welfare. We find modest but by and large positive effects on human welfare since a slowdown of the thermohaline circulation implies decelerated warming.
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Eldevik, Tor, and Jan Even Ø. Nilsen. "The Arctic–Atlantic Thermohaline Circulation*." Journal of Climate 26, no. 21 (2013): 8698–705. http://dx.doi.org/10.1175/jcli-d-13-00305.1.

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Abstract The Atlantic Ocean's thermohaline circulation is an important modulator of global climate. Its northern branch extends through the Nordic Seas to the cold Arctic, a region that appears to be particularly influenced by climate change. A thermohaline circulation is fundamentally concerned with two degrees of freedom. This is in particular the case for the inflow of warm and saline Atlantic Water through the Nordic Seas toward the Arctic that is balanced by two branches of outflow. The authors present an analytical model, rooted in observations, that constrains the strength and structure
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He, Zikang, Xiangyu Wu, Baogang Jin, Zhiqiang Chen, Juan Liu, and Zhaoyi Wang. "Three-Dimensional Thermohaline Structure Reconstruction in the Northwest Pacific Ocean from HY-2 Satellite Data Based on a Variational Method." Journal of Physics: Conference Series 2486, no. 1 (2023): 012035. http://dx.doi.org/10.1088/1742-6596/2486/1/012035.

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Abstract In this study, a variational method was used to reconstruct three-dimensional thermohaline fields in the Northwest Pacific Ocean. First, we evaluate the applicability of HY-2 satellite data in three-dimensional thermohaline fields reconstructions, and it confirms that the HY-2 data are reliable. A comparison with the forecast products of operational system shows the reconstructions can describe the structural characteristics of the ocean three-dimensional thermohaline fields and reflect the mesoscale change process of the ocean.
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Tayar, Jamie, and Meridith Joyce. "Is Thermohaline Mixing the Full Story? Evidence for Separate Mixing Events near the Red Giant Branch Bump." Astrophysical Journal Letters 935, no. 2 (2022): L30. http://dx.doi.org/10.3847/2041-8213/ac85ab.

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Abstract The abundances of mixing-sensitive elements including lithium, [C/N], and 12C/13C are known to change near the red giant branch bump. The explanation most often offered for these alterations is double diffusive thermohaline mixing in the stellar interior. In this analysis, we investigate the ability of thermohaline mixing to explain the observed timing of these chemical depletion events. Recent observational measurements of lithium and [C/N] show that the abundance of lithium decreases before the abundance of [C/N], whereas numerical simulations of the propagation of the thermohaline-
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Marotzke, J. "Abrupt climate change and thermohaline circulation: Mechanisms and predictability." Proceedings of the National Academy of Sciences 97, no. 4 (2000): 1347–50. http://dx.doi.org/10.1073/pnas.97.4.1347.

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Bensi, Manuel, Vedrana Kovačević, Leonardo Langone, et al. "Deep Flow Variability Offshore South-West Svalbard (Fram Strait)." Water 11, no. 4 (2019): 683. http://dx.doi.org/10.3390/w11040683.

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Water mass generation and mixing in the eastern Fram Strait are strongly influenced by the interaction between Atlantic and Arctic waters and by the local atmospheric forcing, which produce dense water that substantially contributes to maintaining the global thermohaline circulation. The West Spitsbergen margin is an ideal area to study such processes. Hence, in order to investigate the deep flow variability on short-term, seasonal, and multiannual timescales, two moorings were deployed at ~1040 m depth on the southwest Spitsbergen continental slope. We present and discuss time series data col
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Lagarde, N., C. Reylé, A. C. Robin, et al. "The Gaia-ESO Survey: impact of extra mixing on C and N abundances of giant stars." Astronomy & Astrophysics 621 (December 21, 2018): A24. http://dx.doi.org/10.1051/0004-6361/201732433.

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Context. The Gaia-ESO Public Spectroscopic Survey using FLAMES at the VLT has obtained high-resolution UVES spectra for a large number of giant stars, allowing a determination of the abundances of the key chemical elements carbon and nitrogen at their surface. The surface abundances of these chemical species are known to change in stars during their evolution on the red giant branch (RGB) after the first dredge-up episode, as a result of the extra mixing phenomena. Aims. We investigate the effects of thermohaline mixing on C and N abundances using the first comparison between the Gaia-ESO surv
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Nakanowatari, Takuya, Tomohiro Nakamura, Keisuke Uchimoto, et al. "Causes of the Multidecadal-Scale Warming of the Intermediate Water in the Okhotsk Sea and Western Subarctic North Pacific." Journal of Climate 28, no. 2 (2015): 714–36. http://dx.doi.org/10.1175/jcli-d-14-00172.1.

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Abstract Causes of the multidecadal-scale warming of the intermediate water in the Okhotsk Sea and the western subarctic North Pacific during 1980–2008 are investigated using an ice–ocean coupled model with interannually varying atmospheric forcing. A hindcast experiment qualitatively reproduces the warming and decadal fluctuations of the intermediate water that are similar to those of observations: the warming is significant along the western part of the Okhotsk Sea and subarctic frontal region. The effects of the thermohaline- and wind-driven ocean circulation on the warming are evaluated fr
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Dissertations / Theses on the topic "Thermohaline change"

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Evans, Dafydd Gwyn. "Heating and cooling or ebbing and flowing? : oceanic change from a thermohaline perspective." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/403352/.

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This thesis develops and applies novel methods to understand water mass variability and change in the global ocean. A water mass framework is developed that determines the diathermal and diahaline transformations of water between water mass classes from the temporal variations in their volumetric distribution. Water masses are defined in terms of their temperature and salinity. This reveals the roles of air--sea fluxes, mixing and transport changes. The second chapter explores the drivers of interannual variability in the overturning circulation in the North Atlantic subtropical gyre using the
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Kleinen, Thomas Christopher. "Stochastic information in the assessment of climate change." Phd thesis, [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=975745441.

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Silvy, Yona. "Emergence des changements de température et de salinité dans l’océan intérieur en réponse au changement climatique : échelles de temps et mécanismes." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS124.

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Le changement climatique d’origine humaine impacte déjà toutes les régions habitées de la planète. 90% de l’excès de chaleur associé aux activités humaines a été absorbé par l’océan depuis les années 1970, atténuant en grande partie le réchauffement atmosphérique, mais impactant fortement les sociétés humaines et la vie marine. Dans cette thèse, j’explore à l’aide d’ensembles de modèles de climat et de simulations numériques dédiées, où et quand les changements de température et de salinité dans l’océan intérieur deviennent assez grands pour être différenciés de
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Woodman, Matthew Raymond Henry. "The thermohaline circulation : its importance in climate changes." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269960.

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Yang, Ming Rial Jose A. "Internal oscillations of the thermohaline circulation and abrupt climate changes during the last Ice Age and perhaps in the future." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2006. http://dc.lib.unc.edu/u?/etd,620.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2006.<br>Title from electronic title page (viewed Oct. 10, 2007). " ... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Geological Sciences." Discipline: Geology; Department/School: Geological Sciences.
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Romanova, Vanya. "Stability of the climate system and extreme climates in model experiments = Stabilität des Klimasystems und extreme Klimate in Modellexperimenten /." Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung, 2005. http://www.gbv.de/dms/goettingen/495760498.pdf.

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De, Boyer Montégut Clément. "Couche melangee oceanique et bilan thermohalin de surface dans l'Ocean Indien Nord." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2005. http://tel.archives-ouvertes.fr/tel-00011449.

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L'objectif de cette these est de determiner quels sont les processus oceaniques et atmospheriques qui controlent la variabilite saisonniere et interannuelle de la Temperature de Surface Oceanique (TSO) dans l'Ocean Indien Nord. Notre approche consiste a utiliser un modele de circulation generale oceanique force et a analyser les termes oceaniques et atmospheriques qui influencent la TSO, representee par la temperature de la couche melangee. Cette couche de surface est donc primordiale dans cette etude. S'assurer qu'elle est bien representee par le modele oceanique nous permet d'obtenir des res
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Machado, Jéferson Prietsch. "Resposta das circulações oceânica e atmosférica associada ao enfraquecimento da circulação termohalina global." Universidade Federal de Viçosa, 2009. http://locus.ufv.br/handle/123456789/5231.

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Made available in DSpace on 2015-03-26T13:50:02Z (GMT). No. of bitstreams: 1 texto completo.pdf: 3607155 bytes, checksum: 0ba931da234b886d1f1b534578664639 (MD5) Previous issue date: 2009-07-28<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The global thermohaline circulation (THC) is the transport of ocean water masses caused by differences in the sea water density due to variations in temperature and salinity. Studies have shown that increased precipitation in high latitudes of the Northern Hemisphere and the sea ice melting of the Arctic region generates a freshwater flo
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Khélifi, Nabil [Verfasser]. "Variations in Mediterranean outflow water and its salt discharge versus Pliocene changes in North Atlantic thermohaline circulation prior and during the onset of major Northern Hemisphere Glaciation, 3.7 – 2.6 Ma / Nabil Khélifi." Kiel : Universitätsbibliothek Kiel, 2010. http://d-nb.info/1019984562/34.

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Books on the topic "Thermohaline change"

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Tōkyō Daigaku. Kikō Shisutemu Kenkyū Sentā, ed. Role of localized mixing around Kuril Straits in Pacific thermohaline circulation. Center for Climate System Research, University of Tokyo, 2010.

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Book chapters on the topic "Thermohaline change"

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Marchal, Olivier, Thomas F. Stocker, and Fortunat Joos. "Physical and biogeochemical responses to freshwater-induced thermohaline variability in a zonally averaged ocean model." In Mechanisms of Global Climate Change at Millennial Time Scales. American Geophysical Union, 1999. http://dx.doi.org/10.1029/gm112p0263.

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Broecker, Wallace S. "Musings about the connection between thermohaline circulation and climate." In Ocean Circulation: Mechanisms and Impacts—Past and Future Changes of Meridional Overturning. American Geophysical Union, 2007. http://dx.doi.org/10.1029/173gm17.

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"THERMOHALINE." In The Complete Guide to Climate Change. Routledge, 2008. http://dx.doi.org/10.4324/9780203888469-64.

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"Are We Headed for a Thermohaline Catastrophe?" In Geological Perspectives of Global Climate Change. American Association of Petroleum Geologists, 2001. http://dx.doi.org/10.1306/st47737c5.

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Rudels, Bert. "The thermohaline circulation of the Arctic Ocean and the Greenland Sea." In The Arctic and Environmental Change. Routledge, 2019. http://dx.doi.org/10.1201/9781315137759-8.

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Dolman, Han. "Physics and Dynamics of the Oceans." In Biogeochemical Cycles and Climate. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198779308.003.0007.

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This chapter focuses on the physics and dynamics of the ocean. It describes the variability of salinity and surface temperature, as well as the vertical temperature structure of the ocean, with the thermocline separating the variable top layer from the deeper ocean. It then describes the key forces in the ocean, as well as the geostrophic balance due to the Coriolis force and density differences. It derives the equations for the change of velocity with depth, the Ekman flow. Barotropic flow and baroclinic flow are elucidated and the general circulation of the ocean, with gyres and the effect o
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A. Harris, Stuart. "Causes and Mechanisms of Global Warming/Climate Change." In The Nature, Causes, Effects and Mitigation of Climate Change on the Environment. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.101416.

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Comparison of the average mean surface air temperature around the world during 1951–1978 with that for 2010–2019 shows that the bulk of the warming is around the North Atlantic/Arctic region in contrast to the Antarctic ice sheet. Obviously, the temperature change is not global. Since there is a substantial difference between solar heat absorption between the equator and the poles, heat must be moving to the North Pole by surface ocean currents and tropical cyclones. The cold, dry Arctic air coming from Siberia picks up heat and moisture from the open oceans, making the sea water denser so tha
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Kent, Michael. "The Ocean in Motion." In The Marine Environment and Biodiversity. Oxford University Press, 2022. http://dx.doi.org/10.1093/hesc/9780198869085.003.0002.

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This chapter discusses the water cycle. Seawater is constantly on the move, escaping into the atmosphere to play an essential role in the water cycle. The most obvious signs of water movement in the sea are surface waves driven mainly by the wind. Tides, the rhythmical rise and fall of sea level, are responsible for dramatic variations in conditions to which intertidal organisms have become adapted. The chapter then explains the ocean circulation system, which consists of surface currents and subsurface currents. Surface currents form an interconnecting series of circulating systems called gyr
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Ivanova, E. V., and I. O. Murdmaa. "Postglacial paleoceanology of the Barents sea." In THE BARENTS SEA SYSTEM. Shirshov Institute of Oceanology Publishing House, 2021. http://dx.doi.org/10.29006/978-5-6045110-0-8/(10).

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The Chapter presents reconstructions of ice sheet boundaries, surface- and bottom-water environments in the Barents Sea for several postglacial intervals. The evolution of the basin during deglaciation is considered in relation to climate changes in the Northern Hemisphere and variations in the intensity of Atlantic water inflow from the last glacial maximum to the Holocene. Particular attention is paid to changes in the dominant sedimentation processes and to diachronous character of deglaciation. Reconstructions are based on our own (more than 30 deep-sea cores) and published data with the a
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Conference papers on the topic "Thermohaline change"

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Valcheva, Nadezhda. "BLACK SEA THERMOHALIN STRATIFICATION: PARTICULARITY AND RECENT CHANGES." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/3.1/s12.05.

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The Black Sea hydrological regime is impacted by external factors, which exerts effect on the sea surface in the process of interaction with the atmosphere and those confined to the lateral borders. The most pronounced features of the Black Sea thermohaline structure are large vertical contrasts in salinity (5 psu), temperature (20�C) and density (7 kg m-3); well-defined vertical asymmetry; existence of a cold intermediate layer during the warm half of the year with an absolute vertical temperature minimum, below which temperature inversion takes place; major contribution of salinity to densit
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Geoffroy, Sandrien, Sophie Mergui, and Christine Benard. "Experimental Study of Heat and Mass Transfers at the Interface of Solidification of a Binary Solution." In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31075.

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This paper deals with the experimental analysis of the influence of thermohaline natural convection on phase change liquid-solid of multicomponent mixtures. We present solidification experiments (dendritic front) from a horizontal plane heat exchanger placed in a cavity filled with a binary NH4Cl-H2O mixture. The solid grows simultaneously on the upper and lower faces of the exchanger and permits the study of two simultaneous configurations. We qualitatively study phenomena met in the presence of thermohaline convection in the liquid phase (cooling from the top) and we analyze in detail the ca
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Kitazawa, Daisuke, and Jing Yang. "Numerical Study on Circulation and Thermohaline Structures With Effects of Icing Event in the Caspian Sea." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20667.

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A hydrostatic and ice coupled model was developed to analyze circulation and thermohaline structures in the Caspian Sea. The northern part of the Caspian Sea freezes in the winter. Waters start icing in November and ices spread during December and January. The northern part of the Caspian Sea is covered by ices in severe winters. Ice-covered area is at its maximum during January and February, and then ices begin melting in March and disappear in April. The occurrence of ices must have significant effects on circulation and thermohaline structures as well as ecosystem in the northern Caspian Se
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Chen, Jun, Philippe Odier, Michael Rivera, and Robert Ecke. "Measurement of Turbulent Mixing Along Slope in Stratified Flow." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98539.

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The mixing phenomenon of ocean currents, which have different densities as well as velocities, are important to ocean dynamics and global climate modeling. One example is the outflow of the Greenland-Iceland-Norwegian Seas, where dense Arctic water overflows a ridge and spills downslope in a density-driven plume until it reaches the deep abyss of the Atlantic Ocean. On the way down it mixes with ambient water of different temperature and salinity. This process affects the global thermohaline circulation, which is a significant element in changes of the global climate. Laboratory experiments ar
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Reports on the topic "Thermohaline change"

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Hanson, H. P. Thermohaline circulations and global climate change. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/7160995.

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Hanson, H. P. Thermohaline circulations and global climate change. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5719940.

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Hanson, H. P. Thermohaline circulations and global climate change. Final report. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/399687.

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Hanson, H. P. Thermohaline circulations and global climate change. Final report. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10117580.

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Hanson, H. P. Thermohaline circulations and global climate change. Annual progress report No. 1. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10182567.

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Chang, Ping, and Charles Jackson. Searching for Atlantic Thermohaline Circulation Strength Threshold Leading to Abrupt Change of the African Monsoon. Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1059285.

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Hanson, H. P. Thermohaline circulations and global climate change. Annual progress report no. 3, January 15, 1992--December 14, 1992. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10191853.

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Hanson, H. P. Thermohaline circulations and global climate change. Annual progress report No. 2, [15 January 1991--14 January 1992]. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10126906.

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