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Dissertations / Theses on the topic 'Air – Pollution – Remote sensing'

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1

Groves, Michael Anthony. "Remote sensing of air pollution related damage to forested areas." Thesis, Aston University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253753.

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2

Diem, Jeremy Everett 1972. "A geographical analysis of air pollution in the Tucson region." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/289152.

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This dissertation presents a geographical analysis of air pollution in the Tucson region. Image processing, geographic information system (GIS), climatological, and statistical tools are used to develop and analyze air pollution-related databases. These databases are then used in conjunction with a limited number of spatial measurements of ozone concentrations to create accurate and theoretically sound ground-level ozone maps. High spatial resolution, gridded, multi-temporal, atmospheric emissions inventories (EIs) of ozone precursor chemical (i.e. volatile organic compounds (VOCs) and nitroge
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3

Bauduin, Sophie. "Remote sensing of atmospheric boundary layer composition using infrared satellite observations." Doctoral thesis, Universite Libre de Bruxelles, 2016. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/239053.

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Measuring the composition of the planetary boundary layer is essential for monitoring pollutants and for understanding their impact on environment and health. Nadir satellite remote sensing is particularly appealing to sound this part of the atmosphere, but is however challenging because pollutants concentrations are generally weak and confined in a small part of the atmospheric column. Among the sounders currently in orbit, those operating in the thermal infrared have usually their maximum sensitivity in the mid-troposphere, and are thought to be inadequate to measure the near-surface atmosph
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4

Kaynak, Burcak. "Assimilation of trace gas retrievals obtained from satellite (SCIAMACHY), aircraft and ground observations into a regional scale air quality model (CMAQ-DDM/3D)." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/37134.

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A major opportunity for using satellite observations of tropospheric chemical concentrations is to improve our scientific understanding of atmospheric processes by integrated analysis of satellite, aircraft, and ground-based observations with global and regional scale models. One endpoint of such efforts is to reduce modeling biases and uncertainties. The idea of coupling these observations with a regional scale air quality model was the starting point of this research. The overall objective of this research was to improve the NOₓ emission inventories by integrating observations from different
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5

Rhudy, Scott Alan. "A remote sensing evaluation of the effectiveness of oxygenated fuels in the Raleigh, NC MSA." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/25872.

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6

Dohanich, Francis Albert. "On-Road Remote Sensing of Motor Vehicle Emissions: Associations between Exhaust Pollutant Levels and Vehicle Parameters for Arizona, California, Colorado, Illinois, Texas, and Utah." Thesis, University of North Texas, 2003. https://digital.library.unt.edu/ark:/67531/metadc5524/.

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On-road remote sensing has the ability to operate in real-time, and under real world conditions, making it an ideal candidate for detecting gross polluters on major freeways and thoroughfares. In this study, remote sensing was employed to detect carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxide (NO). On-road remote sensing data taken from measurements performed in six states, (Arizona, California, Colorado, Illinois, Texas, and Utah) were cleaned and analyzed. Data mining and exploration were first undertaken in order to search for relationships among variables such as make, year, en
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7

Furtado, Clarice Miranda Fiorese. "Análise quantitativa das propriedades ópticas de aerossol urbano e de queimadas na Amazônia." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-14092016-232905/.

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Este trabalho tem como foco o entendimento das propriedades ópticas do aerossol na Amazônia utilizando várias técnicas: sensoriamento remoto em solo, sensoriamento remoto por satélites e medidas in situ. Propriedades ópticas medidas continuamente ao longo de mais de 15 anos pela rede AERONET na Amazônia foram analisadas buscando compreender como os eventos anuais de queima de biomassa e as emissões urbanas de Manaus afetam as propriedades das partículas. Medidas de longo prazo do sensor MODIS utilizando o sistema Giovanni da NASA foram úteis para caracterizar o impacto da pluma urbana de Manau
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8

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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9

Riddell, Kevin Donald Alexander. "Design, testing and demonstration of a small unmanned aircraft system (SUAS) and payload for measuring wind speed and particulate matter in the atmospheric boundary layer." Thesis, Arts and Science, 2014. http://hdl.handle.net/10133/3416.

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The atmospheric boundary layer (ABL) is the layer of air directly influenced by the Earth’s surface and is the layer of the atmosphere most important to humans as this is the air we live in. Methods for measuring the properties of the ABL include three general approaches: satellite-based, ground- based and airborne. A major research challenge is that many contemporary methods provide a restricted spatial resolution or coverage of variations of ABL properties such as how wind speed varies across a landscape with complex topography. To enhance our capacity to measure the properties of the ABL, t
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10

De, Smedt Isabelle. "Long-term global observations of tropospheric formaldehyde retrieved from spaceborne nadir UV sensors." Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209919.

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Atmospheric formaldehyde (H2CO) is an intermediate product common to the degradation of many volatile organic compounds and therefore it is a central component of the tropospheric chemistry. While the global formaldehyde background is due to methane oxidation, emissions of non-methane volatile organic compounds (NMVOCs) from biogenic, biomass burning and anthropogenic continental sources result in important and localised enhancements of the H2CO concentration. Recent spaceborne nadir sensors provide an opportunity to quantify the abundance of tropospheric formaldehyde at the global scale, and
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11

POZZETTI, LUCILA M. V. "Criação de um banco de dados dinâmico e análise de medições LIDAR em formato WEB do Laboratório de Aplicações Ambientais a Laser do Instituto de Pesquisas Energéticas e Nucleares." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11405.

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Made available in DSpace on 2014-10-09T12:51:34Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:58:18Z (GMT). No. of bitstreams: 0<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Pozzetti, Lucila Maria Viola. "Criação de um banco de dados dinâmico e análise de medições Lidar em formato Web do Laboratório de Aplicações Ambientais a Laser do Instituto de Pesquisas Energéticas e Nucleares." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-18052012-101140/.

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O Laboratório de Aplicações Ambientais a Laser, situado no Centro de Lasers e Aplicações no IPEN (Instituto de Pesquisas Energéticas e Nucleares), efetua medidas das concentrações de aerossóis atmosféricos, enviando um feixe de laser à atmosfera e coletando a luz retroespalhada. Tal sistema fornece um grande número de parâmetros físicos que devem ser administrados de forma ágil para a obtenção de análises resultantes. Em conseqüência disso, a implementação de um banco de dados tornou-se imprescindível como instrumento de comunicação e visualização gráfica das medidas coletadas. Um critério de
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13

Mbemba, Kabuiku Lydie. "Contribution des observations ChArMEx en Méditerranée à l’analyse des produits avancés aérosols POLDER-3/PARASOL." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC290/document.

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Par diffusion et absorption des rayonnements solaire et terrestre, et en modifiant les propriétés des nuages, les aérosols atmosphériques exercent un forçage direct et indirect sur le climat encore difficile à estimer dans le présent et à prédire pour le futur. Ces considérations s’appliquent au bassin méditerranéen, l’une des régions du globe climatiquement sensible, où on trouve de fortes concentrations en aérosols issus de sources diverses, naturelles (aérosols marins, poussières sahariennes) et anthropiques (industrie, transport, feux intentionnels). Dans ce contexte, les observations sate
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14

Alvear, Alvear Óscar Patricio. "Mobile Sensing Architecture for Air Pollution Monitoring." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/107928.

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El crecimiento industrial ha acarreado grandes avances tecnológicos para nuestra sociedad. Lamentablemente, el precio a pagar por estos avances ha sido un aumento significativo de los niveles de contaminación del aire en todo el mundo, afectando tanto a zonas urbanas como a las zonas rurales. Por lo general, la monitorización de la calidad aire se realiza mediante estaciones de monitorización fijas. Sin embargo, este método es demasiado costoso, poco escalable y difícil de implementar en nuestras ciudades, las cuales están cada vez más pobladas. El uso de Mobile CrowdSensing, paradigma en el
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15

Byfield, Valborg. "Optical remote sensing of oil in the marine environment." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284675.

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16

Morakinyo, Barnabas Ojo. "Flaring and pollution detection in the Niger Delta using remote sensing." Thesis, University of Plymouth, 2015. http://hdl.handle.net/10026.1/4314.

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Through the Global Gas Flaring Reduction (GGFR) initiative a substantial amount of effort and international attention has been focused on the reduction of gas flaring since 2002 (Elvidge et al., 2009). Nigeria is rated as the second country in the world for gas flaring, after Russia. In an attempt to reduce and eliminate gas flaring the federal government of Nigeria has implemented a number of gas flaring reduction projects, but poor governmental regulatory policies have been mostly unsuccessful in phasing it out. This study examines the effects of pollution from gas flaring using multiple sat
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17

Bidston, Caroline. "The effects of metal pollution on the spectral reflectance of plants." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314319.

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18

Rainey, Michael Patrick. "Airborne remote sensing of estuarine intertidal radionuclide concentrations." Thesis, University of Stirling, 1999. http://hdl.handle.net/1893/2275.

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The ability to map industrial discharges through remote sensing provides a powerful tool in environmental monitoring. Radionuclide effluents have been discharged, under authorization, into the Irish Sea from BNFL (British Nuclear Fuels Plc.) sites at Sellafield and Springfields since 1952. The quantitative mapping of this anthropogenic radioactivity in estuarine intertidal zones is crucial for absolute interpretations of radionuclide transport. The spatial resolutions of traditional approaches e.g. point sampling and airborne gamma surveys are insufficient to support geomorphic interpretations
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19

Wu, Chang-fu. "Applying optical remote sensing techniques to evaluate personal exposure /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/8467.

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20

Hagler, Gayle S. W. "Measurement and analysis of ambient atmospheric particulate matter in urban and remote environments." Diss., Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-05042007-171845/.

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Thesis (Ph. D.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2007.<br>Weber, Rodney, Committee Member ; Schauer, James, Committee Member ; Mulholland, James, Committee Member ; Bergin, Mike, Committee Chair ; Russell, Armistead, Committee Member.
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21

Groome, Kristina M. (Kristina Martin). "Estimating nonpoint source pollution in north Texas watersheds through remote sensing and geographic information systems." Thesis, University of North Texas, 1989. https://digital.library.unt.edu/ark:/67531/metadc798233/.

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Monitoring nonpoint source pollution in a large area is often impractical. However, estimating nonpoint pollution through use of empirical models such as the Universal Soil Loss Equation (USLE) provides a basis for identifying problem areas, and setting management priorities. The purpose of this study was to determine the feasibility of using Landsat imagery and existing geographic data to estimate the effects of land use changes on water quality in four North Texas watersheds over a twelve year period.
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22

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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23

Banks, Robert F. "Assessment of planetary boundary-layer schemes with advanced remote sensing instruments and air quality modelling." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/393896.

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Urban air pollution is of major concern in Spain and also throughout Europe and globally with numerous effects on human health and ecosystems. Since air quality (AQ) is predominantly a problem for human health and the environment, the lowest levels of the atmosphere are the most important to investigate, mainly the planetary boundary-layer (PBL). Atmospheric variables (i.e. temperature, humidity, winds) in the PBL are critically important as inputs for accurate simulations in AQ models. From a modeling standpoint PBL height can be extremely difficult to compute accurately due to the fact that
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24

Walker, Scott William. "Modelling land use change and nonpoint source pollution potential using remote sensing and geographic information system technology." Thesis, University of North Texas, 1990. https://digital.library.unt.edu/ark:/67531/metadc798323/.

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In this study Geographic Information System (GIS) technology was integrated with remote sensing techniques in order to determine the potential for nonpoint source pollution in the Lake Palestine and Cedar Creek Reservoir watersheds of North Central Texas. The Universal Soil Loss Equation was used to determine soil erosion potential from the watersheds, and export coefficients were used to estimate nutrient loadings into the reservoirs.
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25

Williams, Danielle M. "Time series analysis of vegetation dynamics and burn scar mapping at Smoky Hill Air National Guard Range, Kansas using moderate resolution satellite imagery." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/34462.

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Master of Arts<br>Department of Geography<br>J. M. Shawn Hutchinson<br>Military installations are important assets for the proper training of armed forces. To ensure the continued viability of training lands, management practices need to be implemented to sustain the necessary environmental conditions for safe and effective training. For this study two analyses were done, a contemporary burn history and a time series analysis. The study area is Smoky Hill Air National Guard Range (ANGR), an Impact Area (within the range) and a non-military Comparison Site. Landsat 5 TM / 7 ETM+ imagery was u
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26

Foster, Robert. "The polarization of light in coastal and open oceans| Reflection and transmission by the air-sea interface and application for the retrieval of water optical properties." Thesis, The City College of New York, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10254604.

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<p> For decades, traditional remote sensing retrieval methods that rely solely on the spectral intensity of the water-leaving light have provided indicators of aquatic ecosystem health. With the increasing demand for new water quality indicators and improved accuracy of existing ones, the limits of traditional remote sensing approaches are becoming apparent. Use of the additional information intrinsic to the polarization state of light is therefore receiving more attention. One of the major challenges inherent in any above-surface determination of the water-leaving radiance, scalar or vector,
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27

Nergis, Damirag Melodi. "Web Based Cloud Interaction and Visualization of Air Pollution Data." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254401.

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According to World Health Organization, around 7 million people die every year due to diseases caused by air pollution. With the improvements in Internet of Things in the recent years, environmental sensing systems has started to gain importance. By using technologies like Cloud Computing, RFID, Wireless Sensor Networks, and open Application Programming Interfaces, it has become easier to collect data for visualization on different platforms. However, collected data need to be represented in an efficient way for better understanding and analysis, which requires design of data visualization too
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28

Zoogman, Peter William. "Geostationary satellite observations of ozone air quality." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:11109.

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Ozone in surface air is the primary cause of polluted air in the United States. The current ozone observing network is insufficient either to assess air quality or to fully inform our understanding of the factors controlling tropospheric ozone. This thesis investigates the benefit of an instrument in geostationary orbit for observing near surface ozone using Observing System Simulation Experiments (OSSEs).<br>Earth and Planetary Sciences
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29

Coffey, Jeffery M. (Jeffery Morgan). "Development of a Watershed Prioritization Strategy Using Remote Sensing and the Geographic Resource Analysis Support System. Case study: City of Carrollton, Texas." Thesis, University of North Texas, 1996. https://digital.library.unt.edu/ark:/67531/metadc332719/.

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This study used a geographic information system (GIS) and an empirical pollutant load model to estimate average annual pollutant loads contained in storm water charges from the City of Carrollton, Texas. The Geographic Resource Analyses Support System (GRASS) was used to create a number of spatial data layers as input variables to a model that estimates loads in Kilograms/Hectare/Year, and Kilogram/Basin/Year. Average annual pollutant loads for twelve pollutants were derived from average annual rainfall/runoff volumes, coupled with Local Dallas/Fort Worth Metroplex storm water Event Mean Conce
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30

Fu, Youtong. "Use Of Small Format Aerial Photography in NPS Pollution Control Applications." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/26346.

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An automated procedure was developed to identify and extract confined poultry facilities from color 35-mm slide imagery collected by the United States Department of Agriculture/Farm Service Agency (USDA/FSA). The imagery is used by the USDA/FSA to monitor compliance with various farm support programs and to determine crop production acreage within a given county. The imagery is generally available for all counties within the state on an annual basis. The imagery, however, is not flown to rigid specifications as flight height, direction, and overlap can vary significantly. The USDA/FSA attempts
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31

Castanho, Andrea Dardes de Almeida. ""Propriedades ópticas das partículas de aerossol e uma nova metodologia para a obtenção de espessura óptica via satélite sobre São Paulo"." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-29112006-120324/.

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A poluição atmosférica é hoje uma questão que afeta as megacidades por todo o mundo. As partículas de aerossol participam do balanço radiativo, da formação de nuvens, da química atmosférica, e são prejudiciais à saúde da população exposta. A extensão e o rápido crescimento das megacidades têm levado à necessidade do desenvolvimento de ferramentas para o monitoramento da poluição do ar, urbana e regional, por sensoriamento remoto via satélites. Foram analisadas as propriedades ópticas dos aerossóis da região metropolitana de São Paulo com medidas obtidas por fotômetros da rede mundial AERONET (
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32

Dougherty, Mark. "Quantifying Long-Term Hydrologic and NPS Pollutant Response in an Urbanizing Watershed." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/11200.

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Long-term hydrologic and nonpoint source (NPS) pollutant response is quantified for four headwater basins of the Occoquan River in northern Virginia using 24 years of observed rainfall, basin discharge, water chemistry, and derived land use/land cover (LULC) data. Long-term summaries document that several hydrologic and NPS pollutant delivery characteristics in the urbanizing Cub Run basin are significantly different from adjacent non-urban basins. Higher annual NPS fluxes of total suspended solids (TSS), phosphorus (P), and nitrogen (N) in Cub Run are identified with periods of increased so
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33

Fagbeja, M. "Applying remote sensing, GIS and emissions techniques to air quality and carbon dioxide emissions measurements and monitoring in the Niger Delta." Thesis, University of the West of England, Bristol, 2012. http://eprints.uwe.ac.uk/24727/.

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Due to economic, accessibility and security constraints, the majority of developing countries within the low-latitudes lack the capacity to establish networks of ground-based air pollution monitoring stations. As a result, there is a lack of systematic and consistent measurements and monitoring of the concentrations of air pollutants in most of these countries. In addition, there is the lack of verifiable inventories of sources of atmospheric emissions. In order to mitigate these constraints, this research presents an investigation into the relevance of currently available satellite sensors to
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34

Alcantara, Lehi Sttenio. "Deploying and Analyzing Air Quality Sensors in Mongolian Gers." BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/8908.

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The purpose of this research is to develop best practices for deploying air quality sensors in a remote location such as Mongolia. I discussed the architecture and design constraints when collecting remote air quality sensors data, the challenges that emerge while implementing a sensor-based network in a remote location such as Mongolia. The tradeoffs of using different architectures are described. I observed the usage of electrical heaters in modified gers in remote locations and conclude how effective they are in reducing PM2.5 levels by analyzing air quality data and go through the process
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Unga, Florin. "Investigation of atmospheric aerosol mixing state effect on measured and retrieved optical characteristics : an approach integrating individual particle analysis, remote sensing and numerical simulations." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10023/document.

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Les aérosols troposphériques influencent la composition chimique de l’atmosphère, le bilan radiatif terrestre et le climat. Après formation, les aérosols subissent des processus de vieillissement altérant leurs propriétés microphysiques et chimiques. L’étude de l’impact environnemental des aérosols à différentes échelles spatio-temporelles doit donc tenir compte des transformations physico-chimiques. Les objectifs poursuivis sont : (i) d’étudier par microscopie analytique électronique à balayage et en transmission la composition élémentaire et l'état de mélange des particules atmosphériques pr
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Elahdab, Tarek. "Investigation Of Algae Distribution In Eymir Lake Using Site Measurements And Remotely Sensed Data." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607620/index.pdf.

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The aim of this study is to determine the distribution of Chla in Eymir Lake using remotely sensed data and in-situ data. The study was carried out in three phases<br>the first phase was taking ground real data from the lake for a 6-month period, secondly the remotely sensed satellite image was taken and analyzed, thirdly a correlation was obtained between the ground data and satellite image, and lastly mapping of the Chla in the lake was made. During the study also the change of the lake during the 6-month period was monitored. The results showed a great variation in the concentration of Chla
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37

Ding, Pengji. "Lasing effect in femtosecond filaments in air." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLX053/document.

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La filamentation laser femtoseconde dans l'air est un phénomène qui implique une riche famille d'effets optiques non linéaires. Effet laser de filaments a émergé comme un phénomène nouveau en 2011. Il a été activement étudiée au cours des dernières cinq années, non seulement en raison de ses applications potentielles dans les techniques de télédétection mais aussi la physique pour découvrir. Cette thèse est consacrée principalment à l'étude de deux types d'effets laser à partir du plasma filamentaire généré par 800 nm impulsions laser femtosecondes dans l'air ou l'azote pur. Le premier est l'é
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38

Bruno, Jack H. "Evaluating the Weather Research and Forecasting Model Fidelity for Forecasting Lake Breezes." Ohio University Honors Tutorial College / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1556189524538244.

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39

Stone, Brian Jr. "A remote sensing analysis of residential land use, forest canopy distribution, and surface heat island formation in the Atlanta Metropolitan Region." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/22983.

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40

Fraczek, Michael Darius [Verfasser], and Volker [Akademischer Betreuer] Wulfmeyer. "Aircraft air data system based on the measurement of Raman and elastic backscatter via active optical remote-sensing / Michael Darius Fraczek. Betreuer: Volker Wulfmeyer." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2014. http://d-nb.info/1048384799/34.

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Fraczek, Michael [Verfasser], and Volker [Akademischer Betreuer] Wulfmeyer. "Aircraft air data system based on the measurement of Raman and elastic backscatter via active optical remote-sensing / Michael Darius Fraczek. Betreuer: Volker Wulfmeyer." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:100-opus-9650.

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42

Johnson, Paul E. "Uncertainties in Oceanic Microwave Remote Sensing: The Radar Footprint, the Wind-Backscatter Relationship, and the Measurement Probability Density Function." BYU ScholarsArchive, 2003. https://scholarsarchive.byu.edu/etd/71.

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Oceanic microwave remote sensing provides the data necessary for the estimation of significant geophysical parameters such as the near-surface vector wind. To obtain accurate estimates, a precise understanding of the measurements is critical. This work clarifies and quantifies specific uncertainties in the scattered power measured by an active radar instrument. While there are many sources of uncertainty in remote sensing measurements, this work concentrates on three significant, yet largely unstudied effects. With a theoretical derivation of the backscatter from an ocean-like surface, results
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43

Sohrabinia, Mohammad. "Estimation of the near-surface air temperature and soil moisture from satellites and numerical modelling in New Zealand." Thesis, University of Canterbury. Geography, 2013. http://hdl.handle.net/10092/8707.

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Satellite observations provide information on land surface processes over a large spatial extent with a frequency dependent on the satellite revisit time. These observations are not subject to the spatial limitations of the traditional point measurements and are usually collected in a global scale. With a reasonable spatial resolution and temporal frequency, the Moderate Resolution Imaging Spectroradiometer (MODIS) is one of these satellite sensors which enables the study of land-atmospheric interactions and estimation of climate variables for over a decade from remotely sensed data. This rese
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44

Azevedo, Maria Cristina Xavier e. "Mapeamento da poluição luminosa do bioma cerrado." Universidade Federal de Goiás, 2013. http://repositorio.bc.ufg.br/tede/handle/tede/3271.

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Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2014-10-03T19:08:21Z No. of bitstreams: 2 Dissertação - Maria Cristina Xavier e Azevedo - 2013.pdf: 10660866 bytes, checksum: 34764d44e597ebdf9e2054b44b93830c (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Jaqueline Silva (jtas29@gmail.com) on 2014-10-03T20:43:27Z (GMT) No. of bitstreams: 2 Dissertação - Maria Cristina Xavier e Azevedo - 2013.pdf: 10660866 bytes, checksum: 34764d44e597ebdf9e2054b44b93830c (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a
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45

Zamora, Mero Willian Jesús. "Crowdsensing solutions for urban pollution monitoring using smartphones." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/115483.

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La contaminación ambiental es uno de los principales problemas que afecta a nuestro planeta. El crecimiento industrial y los aglomerados urbanos, entre otros, están contribuyendo a que dicho problema se diversifique y se cronifique. La presencia de contaminantes ambientales en niveles elevados afecta la salud humana, siendo la calidad del aire y los niveles de ruido ejemplos de factores que pueden causar efectos negativos en las personas tanto psicológicamente como fisiológicamente. Sin embargo, la ubiquidad de los microcomputadores, y el aumento de los sensores incorporados en nuestros smart
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46

Bourne, Michael G. Jr. "The Effects of Nonpoint Source Pollution on Cyanobacterial Blooms in Lake Erie From Agriculturally Applied Fertilizers in Northwestern Ohio, USA, for the Years (1999-2003)." Bowling Green State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1143487743.

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47

Ekblad, Ulf. "Earth satellites and air and ground-based activities." Doctoral thesis, KTH, Physics, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3775.

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<p>This thesis, Earth satellites and detection of air andground based activities by Ulf Ekblad of the Physics departmentat the Royal Institute of Technology (KTH), addresses theproblem of detecting military activities in imagery. Examplesof various techniques are presented. In particular, problemsassociated with "novelties" and "changes" in an image arediscussed and various algorithms presented. The imagery usedincludes satellite imagery, aircraft imagery, and photos offlying aircraft.</p><p>The timely delivery of satellite imagery is limited by thelaws of celestial mechanics. This and other i
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48

Yuzugullu, Onur. "Determination Of Chlorophyll-a Distribution In Lake Eymir Using Regression And Artificial Neural Network Models With Hybrid Inputs." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612850/index.pdf.

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Chlorophyll-a is a parameter which can be used to understand the trophic state of water bodies. Therefore, monitoring of this parameter is required. Yet, distribution of chlorophyll-a in water bodies is not homogeneous and exhibits both spatial and temporal variations. Therefore, frequent sampling and high sample sizes are needed for the determination of chlorophyll-a quantities. This would in return increase the sampling costs and labor requirement, especially if the topography makes the location hard to reach. Remote sensing is a technology that can aid in handling of these difficulties a
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49

Mainvis, Aymeric. "Modélisation et mesure de l’interaction d’une onde électromagnétique avec une surface océanique. Application à la détection et à la caractérisation radar de films d’hydrocarbures." Thesis, Toulouse, ISAE, 2018. http://www.theses.fr/2018ESAE0032/document.

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Les instruments, satellites ou systèmes aéroportés, actuellement utilisés pour la détection et la caractérisation d'hydrocarbure sur la mer sont basés sur des moyens optiques ou radars. Ces moyens présentent une performance dégradée due à une fréquence encore trop importante de fausses alarmes ou à un temps de traitement des données trop conséquent. Les méthodes de détection, d'identification et de quantification des fuites d'hydrocarbures offshores peuvent donc être améliorées en associant robustesse et réactivité. Cette amélioration suppose une compréhension approfondie des phénomènes océano
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Bullard, Stevan. "Informal Development in Cairo, the View from Above: A Case Study Using Aerial Photo Interpretation to Examine Informal Housing in the Imbaba District of Cairo." unrestricted, 2006. http://etd.gsu.edu/theses/available/etd-04262006-150413/.

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Thesis (M.A.)--Georgia State University, 2006.<br>Title from title screen. Dona J. Stewart, committee chair; Elaine J. Hallisey, Jeremy Crampton, committee members. Electronic text (135 p. : maps (some col.)) : digital, PDF file. Description based on contents viewed June 18, 2006. Includes bibliographical references (p. 130-134).
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