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Dissertations / Theses on the topic 'Remote sounding from satellites'

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1

Nightingale, Timothy John. "Investigation of the radiometric performance of the improved stratospheric and mesospheric sounder." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335805.

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2

Ward, Dale Michael 1963. "Atmospheric sounding from satellite solar occultation refraction measurements." Diss., The University of Arizona, 1997. http://hdl.handle.net/10150/282495.

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Measurements of the refractive bending of solar radiation passing through the limb of the Earth's atmosphere can be utilized to recover vertical profiles of density and temperature. These parameters obtained using the technique of solar refractive sounding could be used to improve satellite solar occultation trace species retrievals and to monitor potential trends in upper atmospheric temperatures. The solar refractive sounding method is described in detail and applied to data available from the Stratospheric Aerosol and Gas Experiment (SAGE II). The meteorological profiles derived from the SA
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3

Lloyd, P. E. "Tropospheric sounding from the TIROS-N series of satellites." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379918.

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4

Carreno-Luengo, Hugo. "Contributions to GNSS-R earth remote sensing from nano-satellites." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/385216.

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Global Navigation Satellite Systems Reflectometry (GNSS-R) is a multi-static radar using navigation signals as signals of opportunity. It provides wide-swath and improved spatio-temporal sampling over current space-borne missions. The lack of experimental datasets from space covering signals from multiple constellations (GPS, GLONASS, Galileo, Beidou) at dual-band (L1 and L2) and dual-polarization (Right Hand Left Hand Circular Polarization: RHCP and LHCP), over the ocean, land and cryosphere remains a bottleneck to further develop these techniques. 3Cat-2 is a 6 units (3 x 2 elementary blocks
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5

BATRA, NAMRATA. "ESTIMATION AND COMPARISON OF EVAPOTRANSPIRATION FROM MULTIPLE SATELLITES FOR CLEAR SKY DAYS." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1116962910.

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6

Piles, Guillem Maria. "Multiscale soil moisture retrievals from microwave remote sensing observations." Doctoral thesis, Universitat Politècnica de Catalunya, 2010. http://hdl.handle.net/10803/77910.

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La humedad del suelo es la variable que regula los intercambios de agua, energía, y carbono entre la tierra y la atmósfera. Mediciones precisas de humedad son necesarias para una gestión sostenible de los recursos hídricos, para mejorar las predicciones meteorológicas y climáticas, y para la detección y monitorización de sequías e inundaciones. Esta tesis se centra en la medición de la humedad superficial de la Tierra desde el espacio, a escalas global y regional. Estudios teóricos y experimentales han demostrado que la teledetección pasiva de microondas en banda L es optima para la medici
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7

Jin, Menglin. "Interpolation of surface radiative temperature measured from polar orbiting satellites to a diurnal cycle." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/282883.

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The land surface skin temperature diurnal cycle (LSTD) is very important for the understanding of surface climate and for evaluating climate models. This variable, however, cannot be obtained globally from polar-orbiting satellites because the satellites usually pass a given area twice per day and because their infrared channels cannot observe the surface when the sky is cloudy. In order to more optimally use the satellite data, this research is designed, for the first time, to solve the above two problems by advance use of remote sensing techniques and climate modeling. Specifically, this wor
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8

Salvaggio, Carl. "Automated segmentation of urban features from Landsat-Thematic Mapper imagery for use in pseudovariant feature temporal image normalization /." Online version of thesis, 1987. http://hdl.handle.net/1850/11371.

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9

Berquin, Yann. "Assessing the performances and optimizing the radar sounder design parameters for the EJSM mission (Ganymede and Europa)." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENU001/document.

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On se propose dans un premier temps d'étudier des jeux de données topographiques sur la lune glacée de Jupiter Ganymède et d'estimer l'impact de la topographie sur les performances du futur radar sondeur. Les principaux résultats sont présentés dans [1]. Une seconde partie est dédiée à l'expression mathématique du problème direct du sondage radar planétaire (physique et instrumentation). On rappelle ainsi comment dériver à partir des formulations de Stratton-Chu les formulations volumiques classiques et surfaciques (i.e. Huygens-Fresnel). On s'attache ensuite à détailler un algorithme performa
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10

Illingworth, Samuel Michael. "The suitability of the IASI instrument for observing CO from space." Thesis, University of Leicester, 2011. http://hdl.handle.net/2381/9285.

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This thesis presents a methodological approach to developing the capability of the Infrared Atmospheric Sounding Interferometer (IASI) instrument to inform on the atmospheric concentrations of carbon monoxide (CO), focussing on three key studies: 1) an assessment of the radiometric accuracy of the instrument; 2) the development of the University of Leicester IASI Retrieval Scheme (ULIRS) to convert measured radiances into a CO product; and 3) an investigation into the reliability and possible use of the ULIRS product. An intercomparison between the radiances as measured by the IASI and Advance
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11

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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12

Cabezas, Rabadán Carlos. "Beach Morphology and its Dynamism from Remote Sensing for Coastal Management Support." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/165076.

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[ES] Las playas son espacios costeros que desarrollan numerosas funciones ambientales. Éstas proporcionan importantes beneficios a la sociedad y a las comunidades costeras, entre las que destacan la función ecológica, el suministro de protección para los territorios costeros y el hecho de que constituyen un recurso básico de la industria turística. De forma ligada al cambio climático, así como a acciones humanas que alteran el dinamismo natural de la costa, las playas están experimentando procesos erosivos cada vez más dañinos que afectan a su integridad física y al mantenimiento de sus funci
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13

Blackmore, Debra Sue. "Use of Water Indices Derived from Landsat OLI Imagery and GIS to Estimate the Hydrologic Connectivity of Wetlands in the Tualatin River National Wildlife Refuge." Thesis, Portland State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10191067.

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<p> This study compared two remote sensing water indices: the Normalized Difference Water Index (NDWI) and the Modified NDWI (MNDWI). Both indices were calculated using publically-available data from the Landsat 8 Operational Land Imager (OLI). The research goal was to determine whether the indices are effective in locating open water and measuring surface soil moisture. To demonstrate the application of water indices, analysis was conducted for freshwater wetlands in the Tualatin River Basin in northwestern Oregon to estimate hydrologic connectivity and hydrological permanence between these w
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14

Bourgoin, Clément. "A framework for evaluating forest ecological vulnerability in tropical deforestation fronts from the assessment of forest degradation in a landscape approach : Case studies from Brazil and Vietnam." Electronic Thesis or Diss., Paris, Institut agronomique, vétérinaire et forestier de France, 2019. http://www.theses.fr/2019IAVF0027.

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La conservation du couvert forestier tropical est essentielle pour assurer la fourniture durable de services écosystémiques. Dans les paysages anthropisés, la conservation des forêts doit également être conciliée avec la productivité agricole. Toutefois, l'accroissement de la démographie, la demande de produits agricoles et les changements dans l'utilisation des terres affectent la durabilité des forêts. Une première étape pour adapter la gestion efficace des forêts par les décideurs locaux consiste à identifier les forêts les plus vulnérables et à caractériser ce qui la génère. L'objectif de
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15

莊弘豪. "Remote Sensing of SST Around the Outfall of a Power Plant from Landsat and NOAA Satellites." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/53825490549064821026.

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碩士<br>國立中山大學<br>海洋資源學系<br>85<br>Satellite data from Landsat Thematic Mapper (TM) were used to derive sea surface temperature (SST) in coastal waters of Hsinta that receive cooling effluent from a power plant. Ground truth temperatures measured simultaneously from a ship as Landsat passed were used to compare with the satellite results. Two methods were applied to improve the atmospheric correction process for monitoring SST. Local radiosonde measurements, used in Lowtran7 adjustments for atmospheric effects, produced corrected ocean surface radiances and atmospheric transmittances. The mea
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16

Pillay, Maldean. "Gabor filter parameter optimization for multi-textured images : a case study on water body extraction from satellite imagery." Thesis, 2012. http://hdl.handle.net/10413/11070.

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The analysis and identification of texture is a key area in image processing and computer vision. One of the most prominent texture analysis algorithms is the Gabor Filter. These filters are used by convolving an image with a family of self similar filters or wavelets through the selection of a suitable number of scales and orientations, which are responsible for aiding in the identification of textures of differing coarseness and directions respectively. While extensively used in a variety of applications, including, biometrics such as iris and facial recognition, their effectiveness depend l
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