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Dissertations / Theses on the topic 'Earch convection'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Hall, Paul S. "Free and forced convection in earth's upper mantle /." View online ; access limited to URI, 2003. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3115631.

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2

Rostami, Masoud. "Dynamical influence of diabatic processes upon developing instabilities of Earth and planetary jets and vortices." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066186.

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Le but de la thèse est de comprendre l'influence dynamique des effets diabatiques, comme la convection humide, sur les instabilités des vortex atmosphériques terrestres et planétaires. Un modèle verticalement intégré, avec les paramétrisations type relaxation des transitions de phase et de dégagement de la chaleur latente, le modèle de St-Venant avec la convection humide, a été utilisé. La version précédente du modèle a été améliorée pour inclure l'eau précipitable, sa vaporisation et son entrainement. L'approche consiste en 1) analyse détaillée de stabilité des profils idéalisés, ou extraits

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3

Park, Sewon. "Diurnal cycle of deep tropical convection." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/54985.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1992.<br>Title as it appears in the M.I.T. Graduate List, Feb. 1992: Diurnal cycle of deep cloud cover in tropics.<br>Includes bibliographical references (leaf 53).<br>by Sewon Park.<br>M.S.

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4

Kocha, Cécile. "Interactions entre poussières désertiques et convection profonde en Afrique de l'Ouest : Observations et modélisation à échelle convective." Phd thesis, Université Paul Sabatier - Toulouse III, 2011. http://tel.archives-ouvertes.fr/tel-00741943.

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Dans un contexte de réchauffement climatique, la région d'Afrique de l'Ouest, où les sécherresses sont dévastatrices pour les populations, montre les plus fortes incertitudes sur l'évolution des précipitations. C'est aussi la première source de poussières désertiques au monde dont la production est en augmentation par la sur-exploitation des sols. Or ces poussières désertiques, associées à des épidémies de méningite, absorbent et diffusent le flux solaire entraînant alors une modification du taux d'échauffement atmosphérique. En modifiant le bilan radiatif atmosphérique elles sont alors succep

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5

Alverson, Keith D. 1965. "Topographic preconditioning of open ocean deep convection." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/53023.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1995.<br>Includes bibliographical references (leaves 143-146).<br>by Keith D. Alverson.<br>Ph.D.

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6

Amiri, Khanmakani Hosein. "The visible consequences of rising convective streams in the Earth." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336266.

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7

Rostami, Masoud. "Dynamical influence of diabatic processes upon developing instabilities of Earth and planetary jets and vortices." Electronic Thesis or Diss., Paris 6, 2017. http://www.theses.fr/2017PA066186.

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Le but de la thèse est de comprendre l'influence dynamique des effets diabatiques, comme la convection humide, sur les instabilités des vortex atmosphériques terrestres et planétaires. Un modèle verticalement intégré, avec les paramétrisations type relaxation des transitions de phase et de dégagement de la chaleur latente, le modèle de St-Venant avec la convection humide, a été utilisé. La version précédente du modèle a été améliorée pour inclure l'eau précipitable, sa vaporisation et son entrainement. L'approche consiste en 1) analyse détaillée de stabilité des profils idéalisés, ou extraits

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8

Boldi, Robert A. (Robert Arthur). "A model of ion chemistry of electrified convection." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/51502.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1992.<br>Includes bibliographical references (leaves 175-182) and index.<br>by Robert A. Boldi.<br>Ph.D.

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9

Larson, Vincent Edwin 1970. "The effects of thermal radiation on dry convection." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/54433.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1999.<br>Includes bibliographical references (p. 96-99).<br>This work seeks to improve understanding of atmospheres in radiative-convective equilibrium. We use two types of idealized, dry radiative-convective models. The first type of model resembles Rayleigh-Benard convection, except that thermal radiative transfer is included. This type of system can be investigated in the laboratory. The second type of model is a more faithful representation of the earth's atmosphere. In this model, t

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10

Bell, Peter Ian. "The effect of bumps on convection in the earth's core." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335890.

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11

de, Lavaissiere de Lavergne Casimir. "Cessation of southern ocean deep convection under anthropogenic climate change." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119766.

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In 1974, newly available satellite observations unveiled the presence of a giant ice-free area within the Antarctic ice pack, which persisted throughout the winter, and formed again in the next two winters. Subsequent research showed that deep convective overturning kept the waters ice-free, through the massive release of heat rising from the deep sea. While the polynya has aroused continued interest among climate scientists, it has not reappeared since 1976. Here we use model experiments to show that deep convection in the Southern Ocean, common in current generation climate models, is highly

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12

Khaleque, Tania Sharmin. "Strongly variable viscosity flows in mantle convection." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:851f7069-8164-4499-8afa-5a06141c5911.

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Convection in the Earth's mantle is a complicated phenomenon that causes various tectonic activities and affects mantle evolution on geologic time scales (billions of years). It is a subject as yet not fully understood. The early success of the high Rayleigh number constant viscosity theory was later tempered by the absence of plate motion when the viscosity is more realistically strongly temperature dependent. A similar problem arises if the equally strong pressure dependence of viscosity is considered, since the classical isothermal core convection theory would then imply a strongly variable

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13

Conrad, Clinton Phillips 1971. "Effects of lithospheric strength on convection in the Earth's mantle." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/53042.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, February 2000.<br>Includes bibliographical references (p. 235-244).<br>Convection in Earth's mantle is driven largely by horizontal density gradients that form when cold, dense, mantle lithosphere descends into the mantle interior, either through subduction for plate-scale flow, or as localized convective instability beneath lithospheric plates. The deformation associated with these processes is resisted by the extreme temperature-dependence of the lithosphere's strength. Ways in which l

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14

Kárason, Hrafnkell 1970. "Constraints on mantle convection from seismic tomography and flow modeling." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8059.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2002.<br>Includes bibliographical references (p. 205-224).<br>In this thesis I combine high resolution seismic tomography and realistic flow modeling to constrain mantle convection. The bulk of the data used in the tomographic imaging are millions of P, pP and pwP travel time residuals, read from high frequency seismic records. The distribution of earthquakes and stations results in uneven data coverage and to improve the model I use core phases (PKP, Pdiff) for the deep mantle and surf

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15

Park, Young-Gyu. "Rotating convection driven by differential bottom heating and its application." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/55050.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1996.<br>Includes bibliographical references (leaves 133-137).<br>by Young-Gyu Park.<br>Ph.D.

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16

Beucler, Tom(Tom George). "Interaction between water vapor, radiation and convection in the tropics." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/121758.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 227-251).<br>The spatiotemporal variability of water vapor near the Equator remains poorly understood because convective organization simultaneously spans the cloud scale (~ 10km) and the planetary scale (~ 10, 000km). Spatiotemporal variability of tropical water vapor may result from internal instabilities of the atmosphere, arising from the interaction between water vapor, radiation and con

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17

Zaranek, Sarah Ellen. "Roles of convection in the evolution of planetary interiors and terrestrial lithospheres /." View online version; access limited to Brown University users, 2005. http://wwwlib.umi.com/dissertations/fullcit/3174708.

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18

Yuan, Huaiyu. "Western United States lithosphere-asthenosphere interaction Modern day small scale convection, plume and ancient lithospheric heterogeneity /." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1400957251&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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19

Bhushan, Vikas. "Modeling convection in the Greenland Sea." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/58537.

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Thesis (S.M.)--Joint Program in Physical Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 1998.<br>Includes bibliographical references (leaves 155-161).<br>A detailed examination of the development of a deep convection event observed in the Greenland Sea in 1988-89 is carried out through a combination of modeling, scale estimates, and data analysis. We develop a prognostic one-dimensional mixed layer model which is coupled to a thermodynamic ice model. Our model contains a representation of

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20

Hsung, Jenwa. "Does the theory of parameterized conveciton apply to layered mantle convection?" Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/114097.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2000.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 70-71).<br>There are numerous models for convection of the Earth's mantle, the end cases of which are whole-mantle convection and layered convection. Heat flow is an important consideration in the evalution of these models. Simple thermal evolution models based on boundary layer theory have in the past been used to look at these models. However, insufficient attention has been paid to how well

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21

Wing, Allison A. "Physical mechanisms controlling self-aggregation of convection in idealized numerical modeling simulations." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90606.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2014.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 141-146).<br>The ubiquity of cloud clusters and their role in modulating radiative cooling and the moisture distribution underlines the importance of understanding how and why tropical convection organizes. In this work, the f

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22

Dennedy-Frank, P. James (Peter James). "Low-degree convection with melting and application to the Martian northern hemisphere." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/37983.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2006.<br>Includes bibliographical references (leaves 57-64).<br>I investigate the hypothesis that the young and smooth surface of the Martian northern hemisphere is due to volcanic resurfacing driven by degree-one convection. I implement a batch melting process in a finite element convection model and run numerical experiments to quantify the melt fraction, timing of melting, and timing of the onset of degree-one convection. All models include a stratified viscosity to induce degree-one f

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23

Singh, Martin Simran. "The response of moist convection and the atmospheric general circulation to climate warming." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90683.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 169-177).<br>In this thesis, the response of atmospheric circulations to changes in surface temperature is investigated. Both cloud-scale and planetary-scale circulations are considered, and a number of different theoretical and numerical tools are employed. First, mechanisms maintaining the thermal stratification of a convecting atmosphere are examined based on simulations of radiative-conv

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24

Ewen, Susan A. "A study of amplitude equations governing thermal convection models of the earth's fluid core." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358894.

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25

Cronin, Timothy (Timothy Wallace). "Land-atmosphere interaction and radiative-convective equilibrium." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90605.

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Thesis: Ph. D. in Climate Physics and Chemistry, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2014.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 161-171).<br>I present work on several topics related to land-atmosphere interaction and radiative-convective equilibrium: the first two research chapters invoke ideas related to land-atmospher

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26

Jernigan, Jonathan. "Mathematical Modeling of Convective Heat Transfer in Mammoth Cave." TopSCHOLAR®, 1997. http://digitalcommons.wku.edu/theses/787.

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Around two centuries ago, changes were made to the entrances of Mammoth Cave and its passages. Today the Historic Entrance to Mammoth Cave is enlarged and the passage just beyond the entrance known as Houchins' Narrows has been cleared of rubble and filled with sediments. These enlargements have resulted in an increase in airflow throughout the Historic Section of the cave causing environmental conditions such as air temperature and airflow to fluctuate. These fluctuations have negatively impacted inhabitants and contents of the cave system. To restore natural conditions within the cave, Scien

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27

Bouffard, Mathieu. "Double-diffusive thermochemical convection in the liquid layers of planetary interiors : a first numerical exploration with a particle- in-cell method." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEN063/document.

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De nombreux corps du système solaire possèdent des enveloppes liquides internes, comme par exemple les noyaux métalliques des planètes telluriques et les océans profonds des satellites de glace de Jupiter et Saturne, dans lesquelles se produisent des courants de convection. La modélisation de la dynamique de ces enveloppes est cruciale pour comprendre la génération des champs magnétiques planétaires (pour les noyaux) et pour mieux déterminer l’habitabilité potentielle des satellites joviens. La convection dans ces enveloppes est généralement produite par la combinaison d’au moins deux sources

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28

Våge, Kjetil. "Circulation and convection in the Irminger Sea." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/58395.

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Thesis (Ph. D.)--Joint Program in Physical Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 131-149).<br>Aspects of the circulation and convection in the Irminger Sea are investigated using a variety of in-situ, satellite, and atmospheric reanalysis products. Westerly Greenland tip jet events are intense, small-scale wind phenomena located east of Cape Farewell, and are important to circulation and conv

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29

Puster, Peter. "The characterization of seismic earth structures and numerical mantle convection experiments using two-point correlation functions." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/55028.

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30

Bister, Marja Helena. "Development of tropical cyclones from mesoscale convective systems." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/57851.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1996.<br>Includes bibliographical references (p. 109-112).<br>by Marja Helena Bister.<br>Ph.D.

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31

Cetola, Jeffrey David. "The Role of Terrain and Convection on Microfront Formation Leading to Severe Low-Level Turbulence." NCSU, 2003. http://www.lib.ncsu.edu/theses/available/etd-09022003-233653/.

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Two low-level convectively-induced turbulence (CIT) events east of the Appalachian Mountains are investigated utilizing observations, satellite, radar, and numerical simulations. Both events had an inordinate amount of low-level turbulence reported, but one event had more than twice as many severe or greater reports. The events were compared?to include the 72 hours leading up to the turbulence reports?and similarities and differences at the various scales from the synoptic to meso-alpha, meso-beta, meso-gamma, and microscale are noted. The case of weaker turbulence featured a meridional wave p

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32

French, Adam James. "The Initiation and Evolution of Multiple Modes of Convection Within a Meso-Alpha Scale Region." NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-10192007-180611/.

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On 30 March 2006 a convective episode occurred featuring isolated supercells, a mesoscale convective system (MCS) with parallel stratiform (PS) precipitation, and an MCS with leading stratiform (LS) precipitation. These three distinct convective modes occurred simulataneously across the same region in eastern Kansas. Multi-modal events are especially challenging for forecasters given the wide range of severe weather threats that accompany the different modes. In order to better understand the mechanisms that govern such events, this study examined the 30 March 2006 episode through a combinatio

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33

Robe, Françoise R. (Françoise Romain). "Sea, sun, and shear : a recipe for precipitating convection, tropical rainbands, and hurricane spiral arms." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/17416.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1996.<br>Includes bibliographical references (p. 235-242).<br>by Françoise R. Robe.<br>Ph.D.

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34

Vidal, Valérie. "Interaction des différentes échelles de convection dans le manteau terrestre." Phd thesis, Institut de physique du globe de paris - IPGP, 2004. http://tel.archives-ouvertes.fr/tel-00009127.

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Deux approches nous ont permis d'améliorer la compréhension des modes de convection dans le manteau terrestre. Nous avons étudié expérimentalement les mouvements de fluides visqueux dans une cuve chauffée latéralement et refroidie par le dessus. La convection à petite échelle qui se développe par déstabilisation de la couche limite thermique froide, analogue de la lithosphère océanique, s'organise en présence de l'écoulement cisaillant de la tectonique des plaques. Elle prend alors la forme de rouleaux stationnaires ou de panaches, deux régimes possibles dans le cas de la Terre. L'interaction

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35

Cordery, Matthew Jean. "Mantle convection, melt migration and the generation of basalts at mid-ocean ridges." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/52936.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, and Woods Hole Oceanographic Institute, 1991.<br>Includes bibliographical references (leaves 183-190).<br>by Matthew Jean Cordery.<br>Ph.D.

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36

Ngomesse, Mbiandou Fabiola Audrey. "Application of X-radiography to the study of the solidification microstructures formation on Earth and in microgravity." Electronic Thesis or Diss., Aix-Marseille, 2022. http://www.theses.fr/2022AIXM0028.

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La radiographie X de laboratoire a été utilisée pour étudier l'impact de la gravité sur la dynamique de formation des microstructures de solidification d’alliages affinés Al-20%pdsCu. La comparaison d’expériences de solidification effectuées dans trois configurations différentes par rapport à la gravité a d’abord été réalisée : configuration horizontale, puis verticale vers le haut et vers le bas. Des informations quantitatives ont été obtenues sur la vitesse de flottaison des grains pendant la croissance vers le haut. Au cours de la croissance vers le bas, l’influence des plumes de soluté sur

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37

Soderholm, Brett. "The evolution of convective storms initiated by an isolated mountain range." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119510.

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While significant attention has been given to understanding the initiation mechanisms of convective storms over mountainous terrain, far less has been given to the factors controlling their subsequent evolution. Here we perform an observational and numerical investigation of the evolution of convective storms initiated by the Black Hills mountains of South Dakota. These Hills are preferentially located within the United States to access moist, unstable air, and are thus a local hot-spot for convection initiation. Applying a convective-celltracking algorithm to 53 observed events initiated by t

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Agard, John Vincent. "Dependence of continental severe convective instability on climatological environmental conditions." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113799.

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Thesis: Ph. D. in Atmospheric Science, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 115-119).<br>Most of Earth's strongest atmospheric convection occurs over the continents, where potential energy is stored over time in metastable vertical profiles, only to be released rapidly by severe storms. In contrast to equilibrium-state convection in tropical ocean regions, there is a relative paucity of research exploring the climate dynamics of continental de

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Chavas, Daniel Robert. "Tropical cyclone size in observations and in radiative-convective equilibrium." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82308.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 147-154).<br>Tropical cyclone size remains an unsolved problem in tropical meteorology, yet size plays a significant role in the damage caused by tropical cyclones due to wind, storm surge, and inland freshwater flooding. This work explores size, defined as the radius of vanishing wind, in observations and at equilibrium in an idealized numerical model. First, a climatology of size is created from

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Xu, Kuanman. "Vertical structure and the convective characteristics of the tropical atmosphere." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/57925.

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41

Louis-Napoléon, Aurélie. "Modélisation d'instabilités gravitaires au sein de la croûte partiellement fondue par une méthode de Volume-Of-Fluid." Thesis, Toulouse, INPT, 2020. http://www.theses.fr/2020INPT0124.

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Les instabilités gravitaires au sein des racines orogéniques partiellement fondues peuvent être à l'origine du développement de dômes de migmatites. Non seulement ces dômes peuvent concentrer des matériaux d’intérêt économique, mais une meilleure compréhension de leur formation présente un intérêt fort dans la connaissance de l’évolution et de la différenciation de la croûte terrestre. Bien que les forces horizontales peuvent être impliquées dans la formation de dômes, l’objectif de cette thèse consistait à regarder uniquement l’influence des forces verticales en étudiant la convection et le d

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42

DeCroix, David Scot. "Large-eddy Simulations of the Convective and Evening Transition Planetary Boundary Layers." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010319-182404.

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<p>Large-eddy simulation (LES) is a very useful tool in computationalfluid dynamics. The LES model allows one to solve a filtered set of theNavier-Stokes equations, thereby explicitly resolving scales of motionlarger than the discretization or grid size. Those motions smaller thanthe grid size are parameterized using a so-called subgrid scale model.<p>In this series of papers, we will use the TASS LES model, originallya cloud model, which has been modified to simulate planetary boundarylayer turbulence. We will first introduce the LES model and a newgrid-nesting method for the LES. Then we wil

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Hufford, Gwyneth Ellin. "Parameterization of convection in a rotating stratified ocean : comparison of numerical and laboratory experiments with theory." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/59632.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, and Woods Hole Oceanographic Institution, 1995.<br>Includes bibliographical references (leaves 70-73).<br>by Gwyneth Ellin Hufford.<br>M.S.

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Chandra, Arunchandra. "The turbulent structure of the clear and cloud-topped convective boundary layer over land." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114422.

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Over land, the daytime evolution of the convective boundary layer (CBL) is driven by the strong surface forcing evolution. Recent modeling studies have demonstrated that models cannot capture the observed evolution because of difficulty to represent turbulent processes in CBL and shallow cumulus clouds. The purpose of this thesis is to advance our understanding of the structure of clear and cloudy boundary layer over land by providing observational evidence using long-term dataset. Specifically, it focuses on documenting the turbulent structure and properties of CBL and FWC using observations

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Robinson, Elizabeth M. "The effect of a shallow low viscosity zone on mantle convection and its expression at the surface of the earth." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/58496.

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Thesis (Ph. D.)--Joint Program in Marine Geology and Geophysics (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 1987.<br>Includes bibliographical references (v.2, leaves 309-317).<br>Many features of the oceanic plates cannot be explained by conductive cooling with age. A number of these anomalies require additional convective thermal sources at depths below the plate: mid-plate swells, the evolution of fracture zones, the mean depth and heat flow relationships with age and the observation of small scal

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Lherminier, Pascale. "Convection profonde en Mer du Groenland: Etude expérimentale des phases de préconditionnement et de mélange." Phd thesis, Université Pierre et Marie Curie - Paris VI, 1998. http://tel.archives-ouvertes.fr/tel-00881646.

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La convection profonde en Mer du Groenland, source importante des eaux profondes de l'Atlantique Nord, fait actuellement l'objet de recherches approfondies. Nous présentons ici les principaux résultats obtenus au cours des hivers de 1993 et 1994 à partir de mesures de flotteurs isobares dérivant entre 250 et 850 m de profondeur et d'un vaste ensemble de données hydrologiques, météorologiques et glaciologiques. L'hiver 1994, peu rigoureux, ne donne lieu qu'à une convection semi-profonde dans un bassin libre de glace, où un tourbillon anticyclonique d'environ 40 km de diamètre apparaît comme un

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Aury, Claudia Indira. "Convection et dégazage d'un système magmatique : le cas du lac de lave l'Erebus, Antarctique." Phd thesis, Université d'Orléans, 2012. http://tel.archives-ouvertes.fr/tel-00772305.

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Le phénomène de dégazage permanent observé sur le volcan Erebus s'accompagne d'une variation cyclique de la composition des gaz et du niveau de son lac de cratère que nous nous sommes proposé de modéliser en partant de l'hypothèse que ces fluctuations sont causées par l'arrivée de batch de magma naissant à faible profondeur, ascendant dans un conduit à travers duquel percole un flux continu de gaz dont l'origine est plus profonde. Nous avons tout d'abord montré par simulation numérique que la vigueur de la convection observée en surface ne pouvait être expliquée par la seule convection thermiq

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Wittmann, Philipp. "Measurement of the convective heat transfer with wind : Developing and testing an Earth Scaled Atmospheric Temperature Sensor." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-59864.

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The HAbitability, Brine Irradiation and Temperature Package (HABIT) instrument of the ExoMars Surface Platform will investigate the present day habitability of Mars at the near surface environment. This instrument includes three Atmospheric Temperature Sensor's (ATS's) which are similar to the ones previously used on the Rover Environmental Monitoring Station (REMS) of the Mars Science Laboratory (MSL) rover, that has now been operating on Mars for more than four years. The ATS of REMS is only used to provide the air temperature, however on HABIT it will be used furthermore to provide informat

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Chung, Kao-Shen. "Use of single Doppler radar observations in data assimilation at convective scale with model as a weak constraint." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:8881/R/?func=dbin-jump-full&object_id=92252.

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LE, BARS MICHAEL. "Convection thermique dans un fluide visqueux hétérogène : phénoménologie, lois d'échelle et applications aux systèmes terrestres." Phd thesis, Institut de physique du globe de paris - IPGP, 2003. http://tel.archives-ouvertes.fr/tel-00002530.

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Le manteau terrestre est hétérogène, mais les caractéristiques de ses réservoirs sont inconnues. Nous avons donc étudié un système simple, dans lequel deux fluides miscibles de densités et de viscosités différentes sont soumis à un contraste thermique déstabilisant. À faible nombre de flottabilité B (rapport entre la stratification chimique et l'anomalie thermique de densité), la convection se développe sur l'intégralité du système, tandis qu'à B plus fort, les fluides convectent séparément. Dans les deux cas, le mélange prend place progressivement. Plusieurs comportements transitoires sont ce

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