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Dissertations / Theses on the topic 'Atmospheric application'

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Published: 25 May 2024

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1

Bowdalo, Dene. "Spectral analysis of atmospheric composition : application to surface ozone." Thesis, University of York, 2016. http://etheses.whiterose.ac.uk/15697/.

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This thesis describes the undertaking of multiple studies designed to evaluate and reduce global modelled surface O3 biases in CTMs/ESMs. Specific focus is placed on the evaluation of rural surface O3 seasonal variability in a global CTM (GEOS-Chem). A major observational data collation is undertaken, processing 1,033,463,750 measurements of O3 and some of its major precursors, from 16,996 sites, through a number of rigorous data quality checks, to ensure data is of a high enough quality for global model evaluation. Through a model–measurement comparison, applying spectral analysis, substantia

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2

Lane, Joseph Robert, and n/a. "Application of electronic structure calculations to atmospheric trace species." University of Otago. Department of Chemistry, 2008. http://adt.otago.ac.nz./public/adt-NZDU20080707.100923.

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The chemistry and dynamics of our atmosphere are complex and diverse. A plethora of different chemical reactions are thought to be important, of which only some are known, and even less are well understood. Many of these atmospheric reactions involve highly reactive or unstable trace species, which can be difficult to study experimentally. However, the advancement of computational methods and hardware now make it possible to investigate these chemical species theoretically to an accuracy that is useful for atmospheric chemistry. In this thesis, we have applied modern electronic structure metho

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3

Adress, Wameedh. "Physics and application of an atmospheric pressure plasma jet." Thesis, Queen's University Belfast, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669537.

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Atmospheric pressure plasma, APP, jets, are now attracting great interest because of their potential uses in many applications; for example surface modification and plasma medicine. These applications require an insight into their plasma chemistry, which is strongly influenced by the electron energy distribution function. In this work the dynamic behaviour of a 20 kHz-driven APP jet operating with helium as the main gas and oxygen as an additive is investigated. The jet has a commonly used configuration, a cylindrical quartz tube with two electrodes used to form a dielectric barrier discharge.

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4

Capps, Shannon. "Advanced sensitivity analysis techniques for atmospheric chemistry models: development and application." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/51755.

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Trace gases and aerosols, or suspended liquid and solid material in the atmosphere, have significant climatological and societal impacts; consequently, accurate representation of their contribution to atmospheric composition is vital to predicting climate change and informing policy actions. Sensitivity analysis allows scientists and environmental decision makers alike to ascertain the role a specific component of the very complex system that is the atmosphere of the Earth. Anthropogenic and natural emissions of gases and aerosol are transported by winds and interact with sunlight, allowing si

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5

Herek, Jennifer Lynn Zewail Ahmed H. Zewail Ahmed H. "Femtochemistry and reactive intermediates : application to atmospheric and organic chemistry /." Diss., Pasadena, Calif. : California Institute of Technology, 1996. http://resolver.caltech.edu/CaltechETD:etd-04082008-084916.

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6

Kordova-Vyhnalikova, Jana. "Mathematical modelling of atmospheric pollution : application of some eulerian-lagrangian trajectographic models to the prediction of atmospheric pollution." Université Louis Pasteur (Strasbourg) (1971-2008), 1997. http://www.theses.fr/1997STR13207.

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Ce memoire concerne la dispersion turbulente de particules lourdes au sein d'une couche limite turbulente. Pour ce faire, un modele eulerien d'ecoulement porteur a ete couple a une approche lagrangienne de trajectographie. La premiere etape dans l'etude du comportement dispersif de particules est de disposer d'une description suffisamment precise de l'ecoulement porteur. Le modele eulerien piapblm est concu pour simuler les ecoulements turbulents de type couche limite atmospherique. Ce modele a ete modifie pour decrire l'ecoulement de la couche limite classique. Il a ete complete par des relat

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7

Potvin, Guy. "The application of RASS in urban boundary layer meteorology." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0019/NQ44556.pdf.

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8

Jackson, David Morris. "Calibration of millimeter-wave radiometers with application to clear-air remote sensing of the atmosphere." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/15786.

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9

Chen, Chuxing. "Local atmospheric electricity and its possible application in high-energy cosmic ray air shower detection." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184799.

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We have conducted an extensive experimental study on the subject of near ground atmospheric electricity. The main objective was to gain more understanding of this particular aspect of atmospheric phenomena, while testing the possible application to cosmic ray research. The results in atmospheric electricity show that there are certain patterns in ion grouping such as the size and lifetime. The average lifetime of ion group is 0.7 seconds and the average size is about 10 meters at our experimental site. Ultrahigh energy cosmic ray air showers should create sizable slow atmospheric electric puls

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10

Breedt, Hendrik Johannes. "Atmospheric boundary layer stability and its application to computational fluid dynamics." Diss., University of Pretoria, 2005. http://hdl.handle.net/2263/66234.

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In the wind resource and wind turbine suitability industry Computational Fluid Dynamics has gained widespread use to model the airflow at proposed wind farm locations. These models typically focus on the neutrally stratified surface layer and ignore physical process such as buoyancy and the Coriolis force. These physical processes are integral to the accurate description of the atmospheric boundary layer and reductions in uncertainties of turbine suitability and power production calculations can be achieved if these processes are included. The present work focuses on atmospheric flows in which

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11

Anderton, Blake Jerome. "Application of Digital Micromirror Devices to Atmospheric Lidar Measurement and Calibration." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/333349.

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A novel design for atmospheric laser radar (lidar) is presented, implementing a digital micromirror device (DMD) for use in (A) aligning transmitter and receiver boresight angles and in (B) field-of-view (FOV) control of such "DMD lidar" instruments. A novel technique is presented to extract the transmitter-receiver overlap-compensation function from ratioing data from different FOVs in the same pointing direction. DMD lidar design considerations and trades are surveyed. Principles of modeling DMD lidar performance are introduced and implemented in a performance-predictive system simulation wi

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12

Clifton, Roger L. "Processing methods for multichannel radiometric data with application to atmospheric radon." Thesis, Curtin University, 1989. http://hdl.handle.net/20.500.11937/80357.

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Airborne multichannel radiometric data are collected for lithology mapping. Established processing methods efficiently extract the potassium and thorium distributions, but confuse the uranium in the ground with the radon gas it releases into the atmosphere. This thesis uses the multichannel character to help separate the true uranium signal from the radon effects. The processing is reviewed and some methods for reducing the effects of radon are examined.

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13

Bozzo, Alessio <1979&gt. "Atmospheric radiative transfer in multiple scattering conditions. Application to NWP models." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1874/1/bozzo_alessio_tesi.pdf.

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High spectral resolution radiative transfer (RT) codes are essential tools in the study of the radiative energy transfer in the Earth atmosphere and a support for the development of parameterizations for fast RT codes used in climate and weather prediction models. Cirrus clouds cover permanently 30% of the Earth's surface, representing an important contribution to the Earth-atmosphere radiation balance. The work has been focussed on the development of the RT model LBLMS. The model, widely tested in the infra-red spectral range, has been extended to the short wave spectrum and it has been used

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14

Bozzo, Alessio <1979&gt. "Atmospheric radiative transfer in multiple scattering conditions. Application to NWP models." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1874/.

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High spectral resolution radiative transfer (RT) codes are essential tools in the study of the radiative energy transfer in the Earth atmosphere and a support for the development of parameterizations for fast RT codes used in climate and weather prediction models. Cirrus clouds cover permanently 30% of the Earth's surface, representing an important contribution to the Earth-atmosphere radiation balance. The work has been focussed on the development of the RT model LBLMS. The model, widely tested in the infra-red spectral range, has been extended to the short wave spectrum and it has been used

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15

Hanley, Thomas Ryan. "The microwave opacity of ammonia and water vapor: application to remote sensing of the atmosphere of Jupiter." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24673.

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Thesis (Ph.D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Dr. Paul G. Steffes; Committee Member: Dr. Gregory D. Durgin; Committee Member: Dr. Robert D. Braun; Committee Member: Dr. Thomas K. Gaylord; Committee Member: Dr. Waymond R. Scott

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16

Krützmann, Nikolai Christian. "Application of Complexity Measures to Stratospheric Dynamics." Thesis, University of Canterbury. Physics and Astronomy, 2008. http://hdl.handle.net/10092/2020.

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This thesis examines the utility of mathematical complexity measures for the analysis of stratospheric dynamics. Through theoretical considerations and tests with artificial data sets, e.g., the iteration of the logistic map, suitable parameters are determined for the application of the statistical entropy measures sample entropy (SE) and Rényi entropy (RE) to methane (a long-lived stratospheric tracer) data from simulations of the SOCOL chemistry-climate model. The SE is shown to be useful for quantifying the variability of recurring patterns in a time series and is able to identify tropical

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17

Ménard, Richard. "Kalman filtering of Burgers' equation and its application to atmospheric data assimilation." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41712.

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A study of Kalman filtering in atmospheric data assimilation is presented. Our research aims at an understanding of the physical and statistical mechanisms as well as the principles underlying its application to atmospheric data assimilation. Both the continuous and the discrete formulations of the filter were considered. Using nonlinear advection diffusion dynamics, a number of aspects in data assimilation were addressed, often by exploring the parameter space or by performing Monte Carlo simulations. The filtering properties, the spatial regularity and indirect inference about the model erro

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18

Glagolenko, Stanislav Yurievich. "Single-ultrafine-particle mass spectrometer development and application." Thesis, Texas A&M University, 2004. http://hdl.handle.net/1969.1/1083.

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A single-ultrafine-particle mass spectrometer was constructed and deployed for size-resolved ultrafine aerosol composition measurements during the winter of 2002-2003 in College Station, Texas. Three separate experiments were held between December and March with six week intervals. Almost 128,000 mass spectra, corresponding to particles with aerodynamic diameters between 35 and 300 nm, were collected and classified. Fifteen statistically significant classes were identified and are discussed in this paper. Nitrate, potassium, carbon, and silicon/silicon oxide were the most frequently observed i

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19

Guérendel, Philippe. "Ultrasonic modeling--application to deep-water multiples imaging." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/52920.

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20

Adams, David Kenton. "Application of the heat engine framework to modeling of large-scale atmospheric convection." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/280339.

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The heat engine framework is examined in terms of large-scale atmospheric convection in order to investigate several theoretical and modeling issues related to the steady-state convecting atmosphere. Applications of the heat engine framework to convective circulations are reviewed. It is shown that this framework provides fundamental insights into the nature of various atmospheric phenomena and estimates of their potential intensity. The framework is shown to be valid for both reversible and irreversible systems; the irreversible processes' sole effect is to reduce the thermodynamic efficiency

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21

Mighani, Saied 1989. "Some rock mechanics problems with application for hydraulic fracturing." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122224.

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Thesis: Ph. D. in Geophysics, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 185-205).<br>Hydraulic fracturing is an essential tool used to enhance connectivity in shale gas reservoirs by maximizing the intersection between the hydraulic fracture (HF) and pre-existing natural fractures (NF) or faults. The technique is most effective when the hydraulic fracture crosses natural fractures rather than arresting on them. Experiments conducted to examine the i

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22

廖俊豪 and Chun-ho Liu. "Numerical modelling of atmospheric boundary layer with application to air pollutant dispersion." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31239018.

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23

Gunther, Matthew. "Formulation and application of improved marine aerosol proxies for atmospheric corrosion studies." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/formulation-and-application-of-improved-marine-aerosol-proxies-for-atmospheric-corrosion-studies(058632b7-cec8-4a69-b50d-1f3b9ba24543).html.

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It has been the purpose of this PhD program to determine whether current laboratory-based methods of investigating Atmospherically-Induced Stress Corrosion Cracking (AISCC) of austenitic Stainless Steels (SS) are adequate in modelling realistic corrosion processes within a marine aerosol environment. Results obtained throughout the study have sought to address three key aims. Mainly, to understand the nature and behaviour of primary marine aerosol containing organic matter present within oceanic surface waters, the interfacial interactions of such aerosol droplets deposited on to austenitic st

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24

Liu, Chun-ho. "Numerical modelling of atmospheric boundary layer with application to air pollutant dispersion /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20158695.

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25

Henderson, John M. 1972. "An application of potential vorticity inversion to the position forecast problem of hurricane Opal /." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27339.

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Accurate forecasting of hurricane motion is required to prepare for hurricane landfall. The underpredicted acceleration of Hurricane Opal by the National Centers for Environmental Prediction's (NCEP) operational eta model during landfall and over-land passage is investigated using quasi-geostrophic potential vorticity (QGPV) inversion. We identify and explain model errors in the evironmental steering flow using a systematic procedure including removal of Opal's cyclonic circulation that builds upon previous work.<br>The eastern ridge associated with the anticyclonic QGPV was persistently forec

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26

Weisberg, Ori (Ori J. ). 1970. "Nonlocalized faulting in a thick lithosphere : application to lunar contraction." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/58266.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, February 2001.<br>Includes bibliographical references (p. 67-74).<br>We reexamine the longstanding hypothesis that lunar contraction is constrained by the lack of a visible global system of compressive faults. We model the lunar lithosphere as a layered elastic medium that fails according to a Mohr-Coulomb criterion. We use elastic constants inferred from lunar seismic profiles, and use a finite element code to model the response of this lithosphere to contraction. We find that fault loca

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27

Boyce, Jeremy Welles. "The development and application of microanalytical (U-Th)/He thermochronology." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/34662.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2006.<br>Includes bibliographical references.<br>The (U-Th)/He thermochronmeter is the foremost tool available to geoscientists for the purposes of constraining the thermal evolution of the crust below 250°C. However, the potential of the technique is far from fully explored. The existing de facto (U-Th)/He age standard, the fluorapatite of Cerro de Mercado (Durango, Mexico), does not yield reproducible dates, an observation confirmed at several laboratories. A series of experiments com

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28

Thompson, Delaine Rebecca. "Nonlinear waveform tomography : theory and application to crosshole seismic data." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12666.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1993.<br>Includes bibliographical references (p. 175-183).<br>by Delaine Rebecca Thompson.<br>Ph.D.

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29

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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30

Weber, Marie Aimee. "N2O emissions from wheat agro-ecosystems under elevated atmospheric CO2." Thesis, The University of Arizona, 1997. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0146_sip1_w.pdf&type=application/pdf.

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31

Kindler, Thomas Paul. "The development of supercomputing tools in a global atmospheric chemistry model and its application on selected problems in global atmospheric chemistry modeling." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/26283.

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32

Hadjimitsis, Diofantos Glafkou. "The application of atmospheric correction algorithms in the satellite remote sensing of reservoirs." Thesis, University of Surrey, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300296.

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33

Koch, T. "An application of matrix isolation and reflection-absorption infrared spectroscopy to reaction mechanisms in atmospheric cryochemistry." Thesis, University of East Anglia, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384825.

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34

Zhang, Huai-Min Ph D. Massachusetts Institute of Technology. "Application of an inverse model in the community modeling effort results." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/58152.

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35

Kenny, William T. "The Development and Application of the Hi-Resolution VOC Atmospheric Chemistry in Canopies Model." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1439131044.

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36

Karim, Abbas Adel. "Application of a computational fluid dynamics (CFD) approach to model atmospheric air pollution." Thesis, London South Bank University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.618684.

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37

Moore, Tim Orland II. "Application of a Mobile Flux Lab for the Atmospheric Measurement of Emissions (FLAME)." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/29046.

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According to the World Health Organization, urban air pollution is a high public health priority due its linkage to cardio-pulmonary disease and association with increased mortality and morbidity (1, 2). Additionally, air pollution impacts climate change, visibility, and ecosystem health. The development of effective strategies for improving air quality requires accurate estimates of air pollutant emissions. In response to the need for new approaches to measuring emissions, we have designed a mobile Flux Lab for the Atmospheric Measurement of Emissions (FLAME) that applies a proven, science-b

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38

Bozon, Nicolas. "Coupling atmospheric dispersion model and Geographical Information Systems : application to pesticide spray drift." Montpellier 2, 2009. http://www.theses.fr/2009MON20255.

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La pollution atmosphérique par les pesticides issus de la viticulture est un problème environnemental majeur affectant aussi bien la santé humaine que l'équilibre des écosystèmes. La modélisation de la dispersion atmosphérique et l'usage des systèmes d'information géographique peuvent permettre de quantifier spatialement la pollution atmosphérique sur le territoire. Cette thèse est fondée sur le couplage d'un modèle de dispersion atmosphérique des pesticides et d'un système d'information géographique, destiné à prédire et cartographier la pollution atmosphérique après les traitements phyto-san

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Hettiyadura, Anusha Priyadarshani Silva. "Quantification of organosulfates and their application in source apportionment of atmospheric organic aerosols." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6132.

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Organic aerosol is a major constituent of atmospheric fine particulates (PM2.5), which adversely affect human health and change the Earth’s radiative energy balance. Primary organic aerosol is directly emitted from sources and secondary organic aerosol (SOA) is formed in the atmosphere following oxidation of volatile organic compounds (VOC) from anthropogenic and biogenic sources. Biogenic SOA is enhanced by anthropogenic pollutants such as sulfate and NOx that mainly come from fossil fuel combustion. However, the extent to which the anthropogenic pollutants enhance biogenic SOA in different e

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DI, NOIA ANTONIO. "Application of neural networks to atmospheric ozone retrievals from the ozone monitoring instrument." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2012. http://hdl.handle.net/2108/204185.

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Yip, Zheng. "North Atlantic tropical cyclogenesis potential in climate change: An application of artificial neural networks." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95238.

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A new methodology employing artificial neural networks is used to project changes in North Atlantic tropical cyclone (TC) genesis potential (GP) and potential intensity (PI) in warming climate. The input data is from simulations of 5 climate models. Emanuel's revised Genesis Potential Index is used to measure the GP. Changes are identified in the 1st (P1) and 2nd (P2) half of the 21st century. The early and late summer GP decreases throughout the 21st century over most of the eastern half of the basin and increases off the east coast of USA and the north coast of Venezuela during P1. The peak

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Inomura, Keisuke. "Development of a cell flux model and its application to nitrogen fixers." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/107105.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>.Quantifying and modeling the macroscopic ecological and biogeochemical effects of cellular physiology and metabolism is a challenge: most quantitative "systems biology" models are focused at the metabolic and individual scale. In this study, we develop and apply a simplified metabolic model at the individual scale, which we call "the cell flux model", in order to quantify costs and benefits of

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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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Titov, Mikhail. "Investigation of winter aerosol dispersion using the MM5/WRF-CAMx4 numerical modelling system : application to the aerosol abatement strategy for the city of Christchurch : a thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy in Environmental Science at the University of Canterbury /." Thesis, University of Canterbury. Geography, 2008. http://hdl.handle.net/10092/1581.

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Air circulation and air pollution dispersion models are used by a range of stakeholders involved in managing air quality in New Zealand following the recent establishment and implementation of the National Environmental (Air Quality) Standards by the Ministry for the Environment. MM5-CAMx4 and WRF-CAMx4 numerical modelling systems were utilized to air circulation over the complex terrain of the Christchurch area for investigation applied to winter aerosol pollution, following the recent establishment and implementation of the National Environmental Standards. A new method using several differe

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LeBeau, Raymond Paul. "Simulations of time-dependentthree-dimensional vortices with application to Neptune's Great Dark Spot." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/17433.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1997.<br>Includes bibliographical references (p. 201-204).<br>by Raymond Paul LeBeau, Jr.<br>Ph.D.

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Shang, Xuefeng Ph D. Massachusetts Institute of Technology. "Inverse scattering : theory and application to the imaging of the Earth's seismic discontinuities." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/87511.

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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.<br>In this thesis we further develop concepts in inverse scattering, which enable higher resolution imaging with data from dense networks and arrays. We apply the new methods to studies of the crust beneath south Tibet and the core-mantle boundary (CMB) region beneath Central America and East Asia. First, we develop a new method, which we call passive source reverse time migration (RTM), for subsu

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Campbell, Jeffrey William. "Evaluation of GEOSTAT data and application to variability of the Northeast Pacific Ocean." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/51465.

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48

Rodgers, Michael O. "Development and application of a photofragmentation/laser-induced flourescence detection system for atmospheric nitrous acid by Michael Owen Rodgers." Diss., Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/25954.

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49

Pencheva, Mariana. "Modelling of atmospheric pressure argon plasmas: application to capacitive RF and surface microwave discharges." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209451.

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This work is focused on modelling of atmospheric pressure high frequency (HF) discharges operated at relatively low power densities. Two types of devices are considered – the radio frequency capacitively coupled atmospheric pressure plasma jet and the microwave discharge sustained by surface electromagnetic waves. They are addresses as the plasma shower and the surface-wave discharge (SWD). Both of the considered devices operate in argon at atmospheric pressure (p = 1 bar). However, the difference in the frequency of the power coupling mechanism induces a big difference in plasma properties. T

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Crawley, Louise Helen. "Application of Non-Dispersive Infrared (NDIR) Spectroscopy to the Measurement of Atmospheric Trace Gases." Thesis, University of Canterbury. Chemistry, 2008. http://hdl.handle.net/10092/2160.

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Abstract:

Gaseous pollutants have been an environmental concern since 1956, when the first clean air act was established in the United Kingdom. Monitoring of gaseous emissions is a legal requirement in most countries, and this has generated a large demand for inexpensive, portable, and versatile gas analysers for the measurement of gaseous emissions. Many of the current commercial gas analysers have differing advantages and disadvantages, however, high cost is an important factor. Instruments with low detection limits and the ability to measure multiple gases tend to be very expensive, whereas, single g

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