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Dissertations / Theses on the topic 'Atmosphere'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

McElroy, Kenneth L. "The atmospheric emission method of calculating the neutral atmosphere and changed particle densities in the upper atmosphere." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23548.

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2

Martello, Robert 1968. "Land atmosphere interaction and atmospheric mixed layer height evolution." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38774.

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3

Erculiani, Marco. "Atmosphere in a test tube: laboratory investigations about exoplanet atmospheres." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424370.

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The aim of this thesis is to understand if cyanobacteria, grown on an Earth-like planet orbiting around the habitable zone of an M star can survive and use the light coming from the star in a fruitful way, in particular analyzing their gaseous by-products. The organisms chosen usually don't have photopigments capable to photosynthesize the NIR part of the radiation, but can modify their photosynthetic apparatus in order to adapt to different light conditions if exposed in NIR light conditions, producing chlorophyll d and f. The two bacteria highlighted for our purpose are Chlorogloeopsis frits

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4

Tice, Dane Steven. "Ground-based near-infrared remote sounding of ice giant clouds and methane." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:4f09f270-a25c-4d36-96d3-13070a594eaa.

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The ice giants, Uranus and Neptune, are the two outermost planets in our solar system. With only one satellite flyby each in the late 1980’s, the ice giants are arguably the least understood of the planets orbiting the Sun. A better understanding of these planets’ atmospheres will not only help satisfy the natural scientific curiosity we have about these distant spheres of gas, but also might provide insight into the dynamics and meteorology of our own planet’s atmosphere. Two new ground-based, near-infrared datasets of the ice giants are studied. Both datasets provide data in a portion of the

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5

Franks, Stewart William. "The representation of land surface - atmosphere fluxes for atmospheric modelling." Thesis, Lancaster University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387430.

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6

Rose, Kathleen A. "Environment "atmosphere" /." Online version of thesis, 1989. http://hdl.handle.net/1850/11084.

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7

Steiner, Allison L. "The influence of atmospheric chemistry and climate on atmosphere-biosphere interactions." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/25751.

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8

Eichelberger, Scott James. "The effects of meridional heating gradients on the atmospheric general circulation and its variability /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/10029.

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9

Geißler, Christoph, and Ch Jacobi. "Forcing of the Quarterdiurnal Tide." Universität Leipzig, 2018. https://ul.qucosa.de/id/qucosa%3A31792.

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Ensemble calculations for the period from 2000 to 2010 were carried out with the middle and upper atmosphere model (MUAM), and an analysis of the quarterdiurnal tide is performed. The global temporal and latitudinal distributions of the quarterdiurnal tide are modeled with MUAM, and their forcing mechanisms are examined. The quarterdiurnal tides show a similar distribution over the year in the northern and southern hemisphere, with maxima of the amplitude in late winter and spring as well as in autumn. In the latitude-height distribution is also shown that the largest amplitudes of the quarter

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10

Sefcik, Lesley T. "Biophere-atmosphere interactions Northern hardwood seedling responses to anthropogenic atmospheric resource alteration." Saarbrücken VDM Verlag Dr. Müller, 2001. http://d-nb.info/988972131/04.

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Sefcik, Lesley T. "Biophere-atmosphere interactions : Northern hardwood seedling responses to anthropogenic atmospheric resource alteration /." Saarbrücken : VDM Verlag Dr. Müller, 2008. http://d-nb.info/988972131/04.

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12

Robertson, Lynette B. "Radon emissions to the atmosphere and their use as an atmospheric tracer." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/14311.

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The naturally-occurring radioactive gases <sup>222</sup>Rn and <sup>220</sup>Rn are widely used as atmospheric tracers in a variety of applications pertinent to climate and air quality studies, but their use in this context is currently limited by poor knowledge of the spatial and temporal pattern in emissions. The aim of this research was to improve knowledge of <sup>222</sup>Rn and <sup>220</sup>Rn emissions by investigating their spatial and temporal variation in emissions on various scales. Novel approaches to measuring <sup>222</sup>Rn and <sup>220</sup>Rn fluxes by the closed chamber met

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13

James, Alexander. "Impacts of meteoric material on Earth's atmosphere : laboratory studies with atmospheric implications." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/16617/.

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Analogues were developed for Interplanetary Dust Particles (IDPs) and Meteoric Smoke Particles (MSPs). Candidate materials were characterised and compared to the present understanding of the nature of IDPs and MSPs. Knowledge and understanding from meteoritics was used to inform open questions in atmospheric chemistry. The elemental composition, structural, surface and size distribution properties of the candidates was compared to micrometeorites and remote measurements of MSPs. Both relatively rare carbonaceous and the more common ordinary chondritic meteorites and terrestrial minerals were s

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14

Mantini, Jennifer Lynn. "A LABORATORY INVESTIGATION OF THE STRUCTURE OF TORNADO-LIKE VORTICES THROUGH MEASUREMENT OF SURFACE PRESSURE." Miami University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=miami1218653459.

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15

Lee, Wei-Liang. "Radiative transfer in atmosphere-ocean and atmosphere-mountain systems application and parameterization /." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1581421911&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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16

de, la Cruz Rodríguez Jaime. "Measuring the solar atmosphere." Doctoral thesis, Stockholms universitet, Institutionen för astronomi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-43646.

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The new CRISP filter at the Swedish 1-m Solar Telescope provides opportunities for observing the solar atmosphere with unprecedented spatial resolution and cadence. In order to benefit from the high quality of observational data from this instrument, we have developed methods for calibrating and restoring polarized Stokes images, obtained at optical and near infrared wavelengths, taking into account field-of-view variations of the filter properties. In order to facilitate velocity measurements, a time series from a 3D hydrodynamical granulation simulation is used to compute quiet Sun spectral

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17

Munro, Rosemary. "Middle atmosphere water vapour." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293409.

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18

Bohnert, Jason Thomas. "Atmosphere transformation & process /." Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2739.

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Thesis (M.F.A.)--West Virginia University, 2002.<br>Title from document title page. Document formatted into pages; contains iv, 52 p. : col. ill. Vita. Includes abstract. Includes bibliographical references (p. 32).

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19

Yiġit, Erdal. "Modelling atmospheric vertical coupling : role of gravity wave dissipation in the upper atmosphere." Thesis, University College London (University of London), 2009. http://discovery.ucl.ac.uk/17972/.

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Recently, an increasing number of modelling and observational studies have looked at the signatures of small-scale waves, such as gravity waves (GWs) of meteorological origin, in the upper atmosphere. General circulation models require an appropriate GW parameterisation to reproduce a realistic global circulation. Existing schemes implemented into GCMs lack a physically proper wave dissipation mechanism above the turbopause. For more self-consistent wave propagation in GCMs, and to estimate their dynamic and energetic importance in the upper atmosphere, it is crucial to account for realistic u

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20

Mohr, Karen Irene. "An investigation of land/atmosphere interactions : soil moisture, heat fluxes, and atmospheric convection /." Digital version:, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p9992875.

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21

Evdokimova, Daria. "Étude des espèces mineures dans la mésosphère nocturne de Vénus." Thesis, université Paris-Saclay, 2021. http://www.theses.fr/2021UPASP039.

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Les processus chimiques de l'atmosphère dense de CO2 de Vénus sont contrôlés par des gaz à traces tels que SO2, O3, H2O, CO, etc. Parmi ces composants atmosphériques, un groupe de composés soufrés et oxygènés occupe une place centrale.L'objectif de cette thèse concerne l'étude du dioxyde de soufre et de l'ozone présents du côté nuit de la haute mésosphère de Vénus entre 85 et 110 km d’altitude. La chimie et la dynamique sont très actives dans cette région et le cycle chimique du soufre dans cette région conduit à la formation de l’épaisse couche nuageuse entre 47 et 70 km d’altitude tout autou

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22

Jougla, Thibault. "Sur l'émergence et l'évolution des jets et des vortex dans les atmosphères planétaires turbulentes." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAU043/document.

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Cette thèse étudie la formation et l'évolution des jets et des vortexdans les atmosphères planétaires turbulentes, à l'aide d'une doubleapproche de simulations numériques et d'expériences delaboratoire. Pour l'approche numérique, un modèle en fluidesshallow-water quasi-géostrophique à deux couches dans le plan betaavec des conditions canal a été utilisé. Comme dans Panetta (1988), onimplémente un cisaillement vertical pour représenter le gradientlatitudinal de température moyenné spatialement, qui est partiellementmaintenu par un forçage thermique. Les instabilités baroclinesaffaiblissent le g

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23

Burton, Kenneth R. "Influence of Antarctic oscillation on intraseasonal variability of large-scale circulations over the Western North Pacific /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Mar%5FBurton.pdf.

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24

Drysdale, Euain Fraser. "Modelling of equatorial wave motions in the middle atmosphere." Thesis, University of Oxford, 1998. http://ora.ox.ac.uk/objects/uuid:9ae75869-a15b-465e-af64-c608cca8b34c.

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A three-dimensional mechanistic model of the middle atmosphere is used to model various classes of equatorial wave motions that are observed in the atmosphere. These waves are thought to be largely responsible for the forcing of the quasi-biennial oscillation (QBO) in the tropical lower stratosphere. By generating a combination of different classes of equatorial waves in the model, an oscillation which has many similarities to the observed QBO is produced in the model. The numerical model used is run in a variety of configurations, including running it at different vertical resolutions and wit

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25

Fan, Meizhu. "Low frequency North Atlantic SST variability weather noise forcing and coupled response /." Fairfax, VA : George Mason University, 2008. http://hdl.handle.net/1920/3421.

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Thesis (Ph.D.)--George Mason University, 2008.<br>Vita: p. 190. Thesis director: Edwin K. Schneider. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Climate Dynamics. Title from PDF t.p. (viewed Mar. 9, 2009). Includes bibliographical references (p. 181-189). Also issued in print.

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26

Larson, Kristin Ann. "Tropical climate sensitivities : clouds, water vapor, radiation and large-scale circulation /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/10015.

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27

Lorenz, David Joseph. "Wave-mean-flow interaction and the annular mode /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/10036.

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28

Brissaud, Quentin. "Modélisation numérique des ondes atmosphériques issues des couplages solide/océan/atmosphère et applications." Thesis, Toulouse, ISAE, 2017. http://www.theses.fr/2017ESAE0016/document.

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Cette thèse se penche sur la propagation d’ondes au sein du système coupléTerre-océan-atmosphère. La compréhension de ces phénomènes a une importance majeure pour l’étude de perturbations sismiques et d’explosions atmosphériques notamment dans le cadre de missions spatiales planétaires. Les formes d’ondes issues du couplage fluide-solide permettent d’obtenir de précieuses informations sur la source du signal ou les propriétés des milieux de propagation. On développe donc deux outils numériques d’ordre élevé pour la propagation d’ondes acoustiques et de gravité. L'u en différences finies et se

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29

Gräfener, G. "Clumping in hydrodynamic atmosphere models." Universität Potsdam, 2007. http://opus.kobv.de/ubp/volltexte/2008/1792/.

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We investigate the effect of wind clumping on the dynamics of Wolf-Rayet winds, by means of the Potsdam Wolf-Rayet (PoWR) hydrodynamic atmosphere models. In the limit of microclumping the radiative acceleration is generally enhanced. We examine the reasons for this effect and show that the resulting wind structure depends critically on the assumed radial dependence of the clumping factor D(r). The observed terminal wind velocities for WR stars imply that D(r) increases to very large values in the outer part of the wind, in agreement with the assumption of detached expanding shells.

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30

Gliah, Omemah Rajab. "Water extraction from the atmosphere." Thesis, University of Ottawa (Canada), 2008. http://hdl.handle.net/10393/27587.

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This investigation is driven by the desire to find an alternative method of obtaining fresh water. More specifically, fresh water is to be obtained by condensation of atmospheric water vapor on a surface maintained below the dew point by a radiative heat loss from its surface to the night sky. To properly simulate the condensation process, an accurate estimation of the effective sky temperature is required. To estimate the effective night sky temperature an experimental system, consisting of a series of metal plates embedded on a heat transfer panel, a weather station and a control system, was

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31

Tahtali, Murat Information Technology &amp Electrical Engineering Australian Defence Force Academy UNSW. "Imaging techniques through the atmosphere." Awarded by:University of New South Wales - Australian Defence Force Academy, 2008. http://handle.unsw.edu.au/1959.4/38963.

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Whilst the underlying mechanisms of atmospheric turbulence are complex, the observed effects on imaging can be described in simpler terms. In this thesis, I address the effects seen as geometric distortions in anisoplanatic imaging and propose new digital restorations techniques that are real-time capable and predictive. The anisoplanatic problem arises in wide-field telescopic imaging and in new ventures of astronomy such as giant telescopes that process wide-field imagery. The methods proposed here, both digital and digital-optical hybrid, remove the position dependent distortions as a precu

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32

Seo, Hyodae. "Mesoscale coupled ocean-atmosphere interaction." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3263355.

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Thesis (Ph. D.)--University of California, San Diego, 2007.<br>Title from first page of PDF file (viewed July 10, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 138-152).

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33

Mandehgar, Mahboubeh. "THz propagation in the Atmosphere." Thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-25561.

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34

Wang, Yonghua. "CFC1₃ transport in the atmosphere." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/25974.

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35

Jones, Hazel. "Ice processes in the atmosphere." Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489509.

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It is generally accepted that ice clouds are of significant importance when considering the Earth's atmosphere with regards to the radiation budget and precipitation processes. This thesis explores three aspects of ice cloud processes: ice nucleation, ice aggregation and ice development inside growing cumulus congestus.

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36

Burns, A. G. "Waves in the middle atmosphere." Thesis, University of Canterbury. Physics, 1985. http://hdl.handle.net/10092/8055.

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Studies were made of the dynamics of the atmosphere at heights of between 65 km and 102.5 km at Birdlings Flat over a period of 2½ years. Variance profiles for internal gravity waves were calculated for each month in the 2½ year period. These profiles were similar for each month. The variances remained reasonably steady in most months at heights below 80 km, but increased steadily above 80 km to a maximum at heights between 92.5 km and 97.5 km. various models were developed to explain this and other features of internal gravity wave behaviour. A simple saturation model explained most of the ob

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37

Virgili, Llop Josep. "Spacecraft Flight in the Atmosphere." Thesis, Cranfield University, 2014. http://dspace.lib.cranfield.ac.uk/handle/1826/9255.

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Spacecraft that orbit in Low Earth Orbit travel through a tenuous atmosphere and hence experience aerodynamic forces that can become quite significant, specially at low altitudes. The presence of these forces can become a major design driver for missions that fly at very low altitudes. Unfortunately, spacecraft aerodynamics are not well understood. In this dissertation, a CubeSat mission is proposed which will study rarefied-gas aerodynamics, with the objective of determining the effect of surface composition, surface finishing and flow incidence angle on the drag and lift coefficients with an

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38

Tuthill, Peter George. "Imaging stars through the atmosphere." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337414.

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39

Schneider, Nicholas McCord. "Sodium in Io's extended atmosphere." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184408.

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This dissertation combines several new observations of the Io sodium cloud to create a consistent picture of the extended Io atmosphere and its interaction with the Jovian plasma torus. I used the LPL echelle spectrograph to obtain three types of high-resolution spectra of the extended sodium cloud at the sodium D-lines (5890, 5896Å). The first class of observations made use of the mutual satellite eclipses of 1985 to probe the density profile of the atmosphere in the range 1.4 to 10 Io radii, a previously unstudied region. The second type of observation examined the sodium emission in Io's im

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40

Ballok, Brian. "Atmosphere in the City Neighborhood." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337101018.

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41

Klein, Ann. "Microbial Biodiversity of the Atmosphere." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/19676.

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Microorganisms are critical to the functioning of terrestrial and aquatic ecosystems and may also play a role in the functioning of the atmosphere. However, little is known about the diversity and function of microorganisms in the atmosphere. To investigate the forces driving the assembly of bacterial microbial communities in the atmosphere, I measured temporal variation in bacterial diversity and composition over diurnal and inter-day time scales. Results suggest that bacterial communities in the atmosphere markedly vary over diurnal time scales and are likely structured by inputs from both l

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42

Merzlyakov, E. G., and Christoph Jacobi. "Some numerical results on the quasi-two-day wave excitation and propagation in the unstable summer middle atmosphere." Universitätsbibliothek Leipzig, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-217777.

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Mit Hilfe numerischer Simulationen wird gezeigt, dass manche Änderungen des klimatologischen Hintergrundwindfeldes zu instabilem mittleren Zonalwind in der mittleren Atmosphäre Sommerhemisphäre führen. Diese Instabilität treibt Oszillationen mit einer Periode um 2 Tage an, welche eine zonale Wellenzahl von s = 3 oder 4 aufweisen. Beobachtete Variationen des mittleren Windes stehen in Verbindung mit diesen numerisch gefundenen Schwingungen. Starke 2-Tage-Wellen wiederum sind instabil und können daher Wellen längerer Periodendauer und kleinerer Wellanzahl anregen. Dieser Effekt ist jedoch nur fü

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43

Hinneburg, Detlef, and Nicole Mölders. "A mesoscale atmospheric model combining meteorology, chemistry, biology, and heterogeneity." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-213743.

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A mesoscale non-hydrostatic atmospheric model was extended by including both a chemical transport module (CTM) for the chemical triade NO, N02, and 0 3, and an explicit surface-subgrid module (ESSM) for a subscale resolution of the topographical surface. CTEM: The simulated time-dependent concentration fields result from the following processes involved: anthropogenic emission at different heights, biogenic emission, dry deposition on the receptive surface, chemical reactions, turbulent diffusion, and passive transport according to the model dynamics. The calculations in the lowest model layer

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44

Kochanski, Adam. "On the practical applications of atmosphere-ocean and atmosphere-wave coupling in mesoscale numerical modeling." abstract and full text PDF (UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3316369.

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45

Arzoumanian, Emmanuel. "Développement du projet SETUP (Simulations Expérimentale et Théorique Utiles à la planétologie) : application à l'étude de la physico-chimie de l'atmosphère de Titan." Phd thesis, Université Paris-Est, 2010. http://tel.archives-ouvertes.fr/tel-00582890.

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Le travail de cette thèse s'inscrit dans le cadre du développement du programme S.E.T.U.P. (Simulations Expérimentale et Théorique Utiles à la planétologie) dont l'objectif est d'effectuer des simulations représentatives de l'atmosphère de Titan et de déterminer les processus physico-chimiques qui y sont impliqués. Pour ce faire, un dispositif expérimental combine deux types de dépôts d'énergie (électrons et photons) représentatifs des processus de dissociation des molécules N2 et CH4 qui composent majoritairement l'atmosphère de Titan. De plus, une technique d'analyse par spectroscopie laser

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46

Goel, Anubha. "Contaminants in the atmosphere of the Delmarva Peninsula impact of local activities and atmospheric transport /." College Park, Md. : University of Maryland, 2007. http://hdl.handle.net/1903/6730.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Civil Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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47

Becker, Edo. "FTIR-Emissionsspektroskopische Untersuchungen der arktischen Atmosphäre = Investigations of the arctic atmosphere by FTIR-Emission spectroscopy /." Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung, 1998. http://www.gbv.de/dms/bs/toc/247022616.pdf.

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48

Lilienthal, Friederike, Nadja Samtleben, Christoph Jacobi, and Erdal Yigit. "Implementing a Whole Atmosphere Gravity Wave Parameterization in the Middle and Upper Atmosphere Model: Preliminary Results." Universität Leipzig, 2019. https://ul.qucosa.de/id/qucosa%3A74178.

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The Middle and Upper Atmosphere Model (MUAM) is used to implement a modern whole atmosphere gravity wave (GW) parameterization (Yigit et al., 2008). To adjust the resulting model climatology to observations, we compare two different spectra of GW phase speeds and the related momentum fluxes included in this parameterization.The first spectrum, termed Spectrum1, which is more narrow, covers phase speeds up to ±80 m s−1 and the second one, Spectrum2, goes up to ±95 m s−1. We analyzed the zonal GW drag, the acceleration of the zonal mean flow owing to breaking GWs, and the resulting background ci

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49

Gentaz, Lucile. "Simulation et modélisation de l’altération des verres de composition médiévale dans l’atmosphère urbaine." Thesis, Paris Est, 2011. http://www.theses.fr/2011PEST1081.

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Dans un environnement urbain pollué, les altérations qui affectent les verres du patrimoine dépendent de facteurs intrinsèques, extrinsèques et temporels. Afin de caractériser les altérations atmosphériques résultant des interactions entre ces différents facteurs une stratégie de recherche prenant en compte un environnement multiphasique, le matériau (composition et surface) et le temps a été mise en place. Pour ce faire une étude complémentaire est menée sur des verres de vitraux exposés plusieurs centaines d'année et de verres modèles exposés en site réel et altéré artificiellement en labora

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50

Cao, Jing. "An investigation of transport during minor stratospheric warmings in the Southern Hemisphere." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/25964.

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