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Dissertations / Theses on the topic 'Tropospheric aerosols'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Tarbuck, Teresa Lynn. "Vibrational sum-frequency spectroscopic investigations of small tropospheric aerosol molecules at vapor/water interfaces /." view abstract or download file of text, 2006. http://proquest.umi.com/pqdweb?did=1188876901&sid=6&Fmt=2&clientId=11238&RQT=309&VName=PQD.

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Thesis (Ph. D.)--University of Oregon, 2006.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 172-186). Also available for download via the World Wide Web; free to University of Oregon users.

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2

Rawle, Christopher B., and n/a. "Coherent multiwavelength sources for tropospheric aerosol lidar." University of Otago. Department of Physics, 2005. http://adt.otago.ac.nz./public/adt-NZDU20070427.114533.

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The monitoring and study of the earth�s atmosphere is becoming an increasingly important task given the current uncertainties in climate prediction. Areas where lidar has been used to further understanding of the atmosphere include monitoring of greenhouse gases, global warming, stratospheric ozone depletion, photochemical smog and aerosol photochemistry. However, the potentially severe long term effects of anthropogenic aerosols on earth�s biosphere are poorly understood. This project seeks to apply state of the art laser technology to develop an innovative multiwavelength lidar system capabl

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3

Gao, Song. "Laboratory studies and field measurements of organic compounds in tropospheric aerosols /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/8579.

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4

Choi, Sungyeon. "Investigation of tropospheric bro using space-based total column bro measurements." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/43682.

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We derive tropospheric column BrO during the ARCTAS and ARCPAC field campaigns in spring 2008 using retrievals of total column BrO from the satellite UV nadir sensors OMI and GOME-2 using a radiative transfer model and stratospheric column BrO from a photochemical simulation. We conduct a comprehensive comparison of satellite-derived tropospheric BrO column to aircraft in-situ observations of BrO and related species. The aircraft profiles reveal that tropospheric BrO, when present during April 2008, was distributed over a broad range of altitudes rather than being confined to the planetary bou

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5

Carpenter, Lucy J. "Measurements of peroxy radicals in clean and polluted atmospheres." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317982.

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6

Rinehart, Lynn Rebecca. "The origin of polar organic compounds in ambient fine particulate matter." abstract and full text PDF (free order & download UNR users only), 2005. 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:3210293.

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7

Price, Heather Umbehocker. "Photochemical processing of long range transported Eurasian pollution in the Northeast Pacific troposphere /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/8645.

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8

Boer, Gregory Jon. "Investigation of high spectral resolution signatures and radiative forcing of tropospheric aerosol in the thermal infrared." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34001.

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An investigation of the high spectral resolution signatures and radiative forcing of tropospheric aerosol in the thermal infrared was conducted. To do so and to support advanced modeling of optical properties, a high spectral resolution library of atmospheric aerosol optical constants was developed. This library includes new optical constants of sulfate-nitrate-ammonium aqueous solutions and the collection of a broad range of existing optical constants for aerosol components, particularly mineral optical constants. The mineral optical constants were used to model and study infrared dust optica

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9

Liu, Jiumeng. "Chemical and optical properties of organic aerosols in the atmosphere over continental US: formation, partitioning, and light absorption." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50370.

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The chemical and optical properties of particulate organic compounds remain unclear, which leaves large uncertainties in the estimation of global radiative transfer balance. Gas and find particle (PM2.5) phase formic acid concentrations were measured with online instrumentation during separate one-month studies in the summer of 2010 in Los Angeles (LA), CA, and Atlanta, GA, and the gas-particle partitioning behavior was investigated and compared with that of water-soluble organic compounds (WSOC). The diurnal profiles clearly indicated that the photochemistry production serves as a strong sour

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10

Hains, Jennifer Carrie. "A chemical climatology of lower tropospheric trace gases and aerosols over the Mid-Atlantic region." College Park, Md. : University of Maryland, 2007. http://hdl.handle.net/1903/6784.

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Thesis (Ph. D.)--University of Maryland, College Park, 2007.<br>Thesis research directed by: Chemistry. 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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11

Chakrabarty, Rajan Kumar. "Characterization of size, morphology and fractal properties of aerosols emitted from spark ignition engines and from the combustion of wildland fuels." abstract and full text PDF (UNR users only), 2006. 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:1436027.

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12

Capouet, Manuel J. F. "Modeling the oxidation of alpha-pinene and the related aerosol formation in laboratory and atmospheric conditions." Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210935.

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13

Liu, Zhen. "Characterizing the photochemical environment over China." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/43668.

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The rapid rising anthropogenic emissions driven by economic growth over China documented by satellite observations and bottom-up inventories have led to severely degraded air quality, and also have been suggested to be linked to the recent upward trends of tropospheric O₃ over the regions downwind of China. Multi-scale modeling analyses facilitated by ground-level, aircraft and satellite observations have been conducted to understand the atmospheric chemistry over China. Analyses using a 1-D photochemical model constrained by measurements at Beijing in August of 2007 suggest that reactive arom

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14

Schmidt, Anja. "Modelling tropospheric volcanic aerosol : from aerosol microphysical processes to Earth system impacts." Thesis, University of Leeds, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540764.

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15

Badger, C. L. "A laboratory study of the properties of tropospheric aerosol particles." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.596243.

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This thesis describes studies of the kinetics of N<sub>2</sub>O<sub>5</sub> hydrolysis using proxies for tropospheric aerosols, measured using an atmospheric pressure aerosol flow tube. The rate of N<sub>2</sub>O<sub>5</sub> hydrolysis has been shown previously to depend on particle phase and water content so these physical properties were characterised in detail for some aerosols. The N<sub>2</sub>O<sub>5</sub> hydrolysis reaction was initially studied on sulphate aerosols, specifically sulphuric acid, ammonium sulphate and ammonium bisulphate. Good agreement was found between this work and p

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16

Piel, Claudia. "Variabilität chemischer und physikalischer Parameter des Aerosols in der antarktischen Troposphäre = Variability of chemical and physical parameters of aerosol in the Antarctic troposphere /." Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung, 2004. http://www.gbv.de/dms/bs/toc/378550012.pdf.

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17

Vandermeer, Aaron D. "Lidar measurements of tropospheric aerosol from the Lidar In-space Technology Experiment." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq43408.pdf.

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18

Newchurch, Michael Joseph. "A comparison of stratospheric aerosol and gas experiment I (SAGE I) and umkehr ozone profiles including a search for umkehr aerosol effects." Diss., Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/25798.

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19

Stachlewska, Iwona Sylwia. "Investigation of tropospheric arctic aerosol and mixed-phase clouds using airborne lidar technique." Phd thesis, Universität Potsdam, 2005. http://opus.kobv.de/ubp/volltexte/2006/698/.

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An Airborne Mobile Aerosol Lidar (AMALi) was constructed and built at Alfred-Wegener-Institute for Polar and Marine Research (AWI) in Potsdam, Germany for the lower tropospheric aerosol and cloud research under tough arctic conditions. The system was successfully used during two AWI airborne field campaigns, ASTAR 2004 and SVALEX 2005, performed in vicinity of Spitsbergen in the Arctic. The novel evaluation schemes, the Two-Stream Inversion and the Iterative Airborne Inversion, were applied to the obtained lidar data. Thereby, calculation of the particle extinction and backscatter coefficient

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20

Benson, David Ryan. "Laboratory Kinetic Studies On Binary and Ternary Homogenous Nucleation Under Lower Tropospheric Conditions." Kent State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=kent1289953146.

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21

Moreau, Louis. "Direct radiative effect of aerosols in the lower troposphere based on aircraft measurements." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69643.

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It is now well established that aerosols, by scattering and absorbing solar radiation, affect the terrestrial heat engine. Depending on the net relfectivity and absorptivity of the haze column and on the surface albedo, the net effect could be a cooling or a warming. But better understanding of the influence of aerosols is handicapped by lack of data and by the fact that their composition and distribution is highly variable in space and time. For the same reasons, the incorporation of aerosols in climate models is usually rudimentary.<br>We have in-situ measurements of the vertical profile and

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22

Zaveri, Rahul A. "Development and Evaluation of a Comprehensive Tropospheric Chemistry Model for Regional and Global Applications." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30673.

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Accurate simulations of the global radiative impact of anthropogenic emissions must employ a tropospheric chemistry model that predicts realistic distributions of aerosols of all types. The need for a such a comprehensive yet computationally efficient tropospheric chemistry model is addressed in this research via systematic development of the various sub-models/mechanisms representing the gas-, aerosol-, and cloud-phase chemistries. The gas-phase model encompasses three tropospheric chemical regimes - background and urban, continental rural, and remote marine. The background and urban

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23

Pan, Wenwei. "The role of aerosols in the troposphere : radiative forcing, model response, and uncertainty analysis." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/55044.

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24

Bräuer, Peter. "Extension and application of a tropospheric aqueous phase chemical mechanism (CAPRAM) for aerosol and cloud models." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-183743.

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The ubiquitous abundance of organic compounds in natural and anthorpogenically influenced eco-systems has put these compounds into the focus of atmospheric research. Organic compounds have an impact on air quality, climate, and human health. Moreover, they affect particle growth, secondary organic aerosol (SOA) formation, and the global radiation budget by altering particle properties. To investigate the multiphase chemistry of organic compounds and interactions with the aqueous phase in the troposphere, modelling can provide a useful tool. The oxidation of larger organic molecules to the fina

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25

Faloon, Kathleen Helen. "The development of a laboratory system to investigate the interactions of tropospheric aerosol and HOx radicals." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/2993/.

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This thesis describes the development and application of a laboratory system to investigate the loss of peroxy radicals to aerosol. The laboratory system consisted of an aerosol ﬂow tube coupled to a custom-built PEroxy Radical Chemical Ampliﬁer (PERCA). Aerosol was generated using an atomiser and their distribution measured using a SMPS. New values of the HO2 uptake coeﬃcient, γ , were obtained for wet and dry sodium chloride aerosol and dry ammonium sulphate aerosol. The mass accommodation coeﬃcient, α, was also determined for NaCl. A box model was used to determine the implications of the n

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26

Schrödner, Roland. "Modeling the tropospheric multiphase aerosol-cloud processing using the 3-D chemistry transport model COSMO-MUSCAT." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-199294.

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Die chemische Zusammensetzung und die physikalischen Eigenschaften von troposphärischen Gasen, Partikeln und Wolken hängen aufgrund zahlreicher Prozesse stark voneinander ab. Insbesondere chemische Multiphasenprozesse in Wolken können die physiko-chemischen Eigenschaften der Luft und troposphärischer Partikel klein- und großräumig verändern. Diese chemische Prozessierung des troposphärischen Aerosols innerhalb von Wolken beeinflusst die chemischen Umwandlungen in der Atmosphäre, die Bildung von Wolken, deren Ausdehnung und Lebensdauer, sowie die Transmissivität von einfallender und ausgehender

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27

COSTA, RENATA F. da. "Estudo das propriedades opticas dos aerossois no estado de Sao Paulo com a tecnica de Lidar Raman." reponame:Repositório Institucional do IPEN, 2010. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9586.

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Made available in DSpace on 2014-10-09T12:28:19Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:56:45Z (GMT). No. of bitstreams: 0<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP<br>FAPESP:08/01954-0

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28

SOUZA, RENATA F. de. "Estudo do perfil vertical de aerossóis na troposfera utilizando a técnica de LIDAR." reponame:Repositório Institucional do IPEN, 2004. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9294.

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Made available in DSpace on 2014-10-09T12:25:48Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:03:33Z (GMT). No. of bitstreams: 1 11315.pdf: 4284842 bytes, checksum: 94ad34802b7652ff6ef2b3584c12f794 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares, IPEN/CNEN-SP<br>FAPESP:01/07304-8

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29

t'Kint, de Roodenbeke Axelle. "A novel broad-band LIDAR for the measurement of profiles of tropospheric aerosol and temperature : techniques and first profiles." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624815.

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30

Köllner, Franziska [Verfasser]. "Aerosol particles in the summertime Arctic lower troposphere: Chemical composition, sources, and formation / Franziska Köllner." Mainz : Universitätsbibliothek Mainz, 2020. http://d-nb.info/1204528756/34.

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31

Weigelt, Andreas. "An optical particle counter for the regular application onboard a passenger aircraft: instrument modification, characterization and results from the first year of operation." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-172724.

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To understand the contribution of aerosol particles to radiative forcing and heterogeneous chemical processes in the upper troposphere and lowermost stratosphere (UT/LMS), the knowledge of the particle size distribution is mandatory. Unfortunately, measurements in the UT/LMS are costly. Research aircrafts are expensive and thus their application is limited in time and space. Satellite remote sensing measurements provide a good temporal and spatial (horizontal) coverage, but only a limited vertical resolution and currently cannot resolve the particle size distribution. Therefore, within this th

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32

Seifert, Patric. "Dust-related ice formation in the troposphere: A statistical analysis based on 11 years of lidar observations of aerosols and clouds over Leipzig." Doctoral thesis, Universitätsbibliothek Leipzig, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-71167.

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Im Rahmen der vorliegenden Arbeit wurde der Zusammenhang zwischen heterogener Eisbildung und Temperatur auf Basis eines 11-Jahres Lidardatensatzes untersucht, wobei besonders der potenzielle Einfluss von Wüstenstaubaerosol auf die heterogene Gefriertemperatur von unterkühlten Wasserwolken überprüft wurde. Der zugrundeliegende Lidardatensatz entstand im Rahmen von zwischen 1997 und 2008 am Leibniz-Institut für Troposphärenforschung (IfT) in Leipzig durchgeführten Lidarmessungen. Mehr als 2300 zeitlich und räumlich defifinierte Wolkenschichten wurden anhand des gemessenen linearen Depolarisation

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33

Suh, Inseon. "Photochemistry of aromatic hydrocarbons: implications for ozone and secondary organic aerosol formation." Texas A&M University, 2003. http://hdl.handle.net/1969.1/3893.

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Aromatic hydrocarbons constitute an important fraction (~20%) of total volatile organic compounds (VOCs) in the urban atmosphere. A better understanding of the aromatic oxidation and its association in urban and regional ozone and organic aerosol formation is essential to assess the urban air pollution. This dissertation consists of two parts: (1) theoretical investigation of the toluene oxidation initiated by OH radical using quantum chemical and kinetic calculations to understand the mechanism of O3 and SOA precursors and (2) experimental investigation of atmospheric new particle formation f

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34

Ricketts, Hugo Michael Anthony. "A lidar system to measure aerosol and ozone profiles in the atmospheric boundary layer and free troposphere." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509406.

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35

Dadashazar, Hossein, Rachel A. Braun, Ewan Crosbie, et al. "Aerosol characteristics in the entrainment interface layer in relation to the marine boundary layer and free troposphere." COPERNICUS GESELLSCHAFT MBH, 2018. http://hdl.handle.net/10150/627046.

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This study uses airborne data from two field campaigns off the California coast to characterize aerosol size distribution characteristics in the entrainment interface layer (EIL), a thin and turbulent layer above marine stratocumulus cloud tops, which separates the stratocumulus-topped boundary layer (STBL) from the free troposphere (FT). The vertical bounds of the EIL are defined in this work based on considerations of buoyancy and turbulence using thermodynamic and dynamic data. Aerosol number concentrations are examined from three different probes with varying particle diameter (<i>D</i><su

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36

Bräuer, Peter [Verfasser], Hartmut [Akademischer Betreuer] Herrmann, and Bernard [Gutachter] Aumont. "Extension and application of a tropospheric aqueous phase chemical mechanism (CAPRAM) for aerosol and cloud models / Peter Bräuer ; Gutachter: Bernard Aumont ; Betreuer: Hartmut Herrmann." Leipzig : Universitätsbibliothek Leipzig, 2015. http://d-nb.info/1239659903/34.

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37

RODRIGUES, PATRICIA F. "Avaliação da higroscopicidade de aerossóis urbanos pela técnica LIDAR Raman." reponame:Repositório Institucional do IPEN, 2014. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23498.

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Submitted by Maria Eneide de Souza Araujo (mearaujo@ipen.br) on 2015-02-24T19:21:41Z No. of bitstreams: 0<br>Made available in DSpace on 2015-02-24T19:21:41Z (GMT). No. of bitstreams: 0<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Tese (Doutorado em Tecnologia Nuclear)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP<br>FAPESP:09/14758-7

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38

Schrödner, Roland [Verfasser], Eberhard [Akademischer Betreuer] Renner, Eberhard [Gutachter] Renner, Ralf [Akademischer Betreuer] Wolke, Andreas [Akademischer Betreuer] Tilgner, and Nadine [Gutachter] Chaumerliac. "Modeling the tropospheric multiphase aerosol-cloud processing using the 3-D chemistry transport model COSMO-MUSCAT / Roland Schrödner ; Gutachter: Eberhard Renner, Nadine Chaumerliac ; Eberhard Renner, Ralf Wolke, Andreas Tilgner." Leipzig : Universitätsbibliothek Leipzig, 2016. http://d-nb.info/1240398093/34.

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39

Farah, Antoine. "Analysis of the physical and chemical properties of atmospheric aerosol at the Puy de Dôme station." Thesis, Université Clermont Auvergne‎ (2017-2020), 2018. http://www.theses.fr/2018CLFAC049/document.

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Les particules d'aérosol sont importantes en raison de leurs impacts directs et indirects sur le climat. Dans la couche limite (CL), ces particules ont une durée de vie relativement courte en raison de leur élimination fréquente par dépôt humide. En revanche, lorsque les aérosols sont transportés dans la troposphère libre (TL), leur durée de vie dans l'atmosphère augmente de manière significative, ce qui les rend représentatifs de vastes zones spatiales. Dans le cadre de ces travaux de thèse, nous avons utilisé une combinaison de mesures in situ effectuées à la station PUY (Puy de Dôme, 45 ° 4

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40

Leitão, Alexandre Joana [Verfasser], John P. [Akademischer Betreuer] Burrows, and Otto [Akademischer Betreuer] Schrems. "The relevance of aerosol in the retrieval of tropospheric NO2 from satellite - a study of model data applicability / Joana Leitão Alexandre. Gutachter: John P. Burrows ; Otto Schrems. Betreuer: John P. Burrows." Bremen : Staats- und Universitätsbibliothek Bremen, 2011. http://d-nb.info/1071898558/34.

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Schmale, Julia Yvonne [Verfasser]. "Aircraft-based in-situ aerosol mass spectrometry: Chemical characterization and source identification of submicron particulate matter in the free and upper troposphere and lower stratosphere / Julia Yvonne Schmale." Mainz : Universitätsbibliothek Mainz, 2011. http://d-nb.info/1031800891/34.

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42

Chauvigné, Aurélien. "Impact radiatif des aérosols de haute altitude." Thesis, Clermont-Ferrand 2, 2016. http://www.theses.fr/2016CLF22757/document.

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La présence des particules d’aérosols dans l’atmosphère influencent le bilan radiatif de notre planète et ainsi son équilibre climatique. Selon les différents mécanismes d’émission et processus de transports atmosphériques, les aérosols peuvent être entrainés dans la troposphère libre et ainsi y résider pendant plusieurs semaines. Les contributions optiques et radiatives des aérosols de troposphère libre par rapport à celles de la colonne atmosphérique sont encore mal évaluées du fait de la difficulté d’accès et du manque de mesures sur de longues périodes. Ces travaux de thèse se sont donc ap

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43

Seifert, Patric [Verfasser], Albert [Akademischer Betreuer] Ansmann, Jost [Gutachter] Heintzenberg, and Kenneth [Gutachter] Sassen. "Dust-related ice formation in the troposphere: A statistical analysis based on 11 years of lidar observations of aerosols and clouds over Leipzig / Patric Seifert ; Gutachter: Jost Heintzenberg, Kenneth Sassen ; Betreuer: Albert Ansmann." Leipzig : Universitätsbibliothek Leipzig, 2011. http://d-nb.info/1237894700/34.

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44

Chiang, Chih-Wei, and 江智偉. "The optical properties measurements of tropospheric Aerosols." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/50414759106890934268.

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博士<br>國立中央大學<br>物理研究所<br>93<br>Dual-wavelength, depolarization, and Raman Lidar observations for the tropospheric aerosols in the height region 1-5 km, using data of 126 days for background aerosols and 40 days for special aerosols events (dust and biomass burning) during the period 2002/2-2004/5, are presented in this paper. Lidar measurements revealed the optical properties, source, transport processes, seasonal variation, and humidity effect of aerosols. Data were analyzed in conjunction with Sun-photometer, Radiosonde, Visibility, satellite image (TOMS), and trajectory studies (HYSPLIT).

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45

Cziczo, Daniel J. "Laboratory studies of phase transitions in common tropospheric aerosols /." 1999. http://wwwlib.umi.com/dissertations/fullcit/9943058.

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46

Adams, Peter Jonathan. "Representing Tropospheric Aerosols and Their Climatic Effects in Global Models." Thesis, 2002. https://thesis.library.caltech.edu/6137/2/Adams_pj_2002.pdf.

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In order to better understand and quantify the direct and indirect effect of aerosols on climate, an earlier general circulation model (GCM) simulation of tropospheric sulfate has been extended by incorporating aerosol thermodynamics and microphysics. The thermodynamic simulation allows the prediction of nitrate, ammonium, and aerosol water concentrations. It is estimated that nitrate contributes as much to total aerosol mass as sulfate on regional scales in parts of Europe and North America. The direct radiative forcing associated with the sulfate-nitrate-ammonium-water mixture is estimated t

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Liao, Hong. "Interactions between Tropospheric Chemistry and Aerosols in a Unified GCM Simulation." Thesis, 2002. https://thesis.library.caltech.edu/6370/1/Liao_h_2002.pdf.

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Anthropogenic changes in the atmospheric abundances of tropospheric ozone and aerosols make significant contributions to climate change. In turn, climate change affects the abundances of ozone and aerosols, resulting in complicated feedbacks. To move toward understanding interactions and feedbacks among tropospheric chemistry, aerosol formation, and climate change, a unified tropospheric chemistry-aerosol model is developed within the Goddard Institute for Space Studies general circulation model. The model includes a detailed simulation of tropospheric ozone-NO_x-hydrocarbon chemistry and a

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48

石井, 昌憲, and Shoken Ishii. "Arctic Tropospheric Aerosols Observed by Lidar during Winter Seasons at Eureka, Canada : Optical Properties and Source Regions of Aerosol layers." Thesis, 2001. http://hdl.handle.net/2237/16338.

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Rashki, Alireza. "Seasonality and mineral, chemical and optical properties of dust storms in the Sistan region of Iran, and their influence on human health." Thesis, 2012. http://hdl.handle.net/2263/27734.

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Atmospheric aerosols are suspensions of solid and/or liquid particles in the air from natural and anthropogenic sources. Aerosols are ubiquitous in the air and are often observable as dust, smoke and haze. Dust is considered to be one of the major components of tropospheric aerosols over the globe. Natural and human processes contribute to aerosol emissions. Each year, several billion tons of soil-dust is entrained into the atmosphere playing a vital role in solar irradiance attenuation, and affects marine environments, atmospheric dynamics and weather. Air pollution has recently become a seri

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Sakai, Tetsu, and 哲. 酒井. "Optical Properties of Free Tropospheric Aerosol Particles Related to the Relative Humidity as Derived from Raman Lidar Observations at Nagoya: Contributions of Aerosols from the Asian Continent and the Pacific Ocean." Thesis, 2000. http://hdl.handle.net/2237/6418.

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