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On the Microphysical Properties of Ice Clouds as Inferred from the Polarization of Electromagnetic WavesCole, Benjamin 2011 August 1900 (has links)
Uncertainties associated with the microphysical and radiative properties of ice clouds remain an active research area because of the importance these clouds have in atmospheric radiative transfer problems and the energy balance of the Earth. In this study, an adding/doubling model is used to simulate the top of atmosphere (TOA) radiance and full Stokes vector from an ice cloud at the wavelength lambda = 865 nm with many different combinations of assumed ice habits (shapes) and different degrees of ice surface roughness, and the polarized radiance at a wide range of scattering angles is derived. Simulated results are compared with polarized radiance data from the POLDER (POLarization and Directionality of the Earth's Reflectances) instrument on board the PARASOL (Polarization and Anisotropy of Reflectances for Atmospheric Sciences coupled with Observations from a Lidar) satellite.
Bulk ice scattering properties are obtained by using five different size distributions collected during field campaigns ranging in effective diameter from 10 micrometers to 90 micrometers. Bulk scattering properties for the MODIS Collection 5 ice cloud product are used in this study, along with properties for two mid-latitude ice cloud models, a polar/mid-latitude ice model, and a model built for ice clouds over deep convection. Solid columns and hollow columns are used as well.
The polarized radiance simulation results for the moderate surface roughness level best fit the satellite measurements for all ice models, though severely roughened ice crystals do fare well in a few cases. Hollow columns are the best fit to the satellite polarization measurements, but of the ensemble ice models, the polar/mid-latitude model at an effective diameter of 90 micrometers best fits the polarized radiance measurements for the one day of PARASOL data considered. This model should be the best to simulate ice cloud properties on a global scale.
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Efficient numerical modeling of random surface roughness for interconnect internal impedance extractionChen, Quan, January 2007 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2008. / Also available in print.
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A mathematical model to aid in the design of ameliorating cosmetics for conducting surfaces that ordinarily produce derogative multipath for the ILS localizer courseOdunaiya, Simbo Ajayi. January 1995 (has links)
Thesis (Ph. D.)--Ohio University, November, 1995. / Title from PDF t.p.
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Measurement and analysis of surface topography over multiple length scales application to titanium bone implants /Sosale, Guruprasad. January 1900 (has links)
Thesis (M.Eng.). / Written for the Dept. of Mechanical Engineering. Title from title page of PDF (viewed 2008/01/14). Includes bibliographical references.
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A law-of-the-wall shift correlation for stochastically rough surfaces /Ferrari, Michael, January 1900 (has links)
Thesis (M.App.Sc.) - Carleton University, 2002. / Includes bibliographical references (p. 221-225). Also available in electronic format on the Internet.
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Root surface roughness after the use of the "System-S" ultrasonic scaler a thesis submitted in partial fulfillment ... periodontics ... /Ghilzon, Romanita Streza. January 1980 (has links)
Thesis (M.S.)--University of Michigan, 1980.
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Relationship between force and roughness detection in probing thesis presented in partial fulfillment ... dental hygiene education ... /Meyer, Marlise. January 1978 (has links)
Thesis (M.S.)--University of Michigan, 1978.
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Efficient numerical modeling of random surface roughness for interconnect internal impedance extraction /Chen, Quan, January 2007 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2008. / Also available online.
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Effect of denture cleanser on the surface roughness and hardness of denture base materials /Tieng Chhnoeum, Nitipun Jeeraphaet, January 2008 (has links) (PDF)
Thesis (M.Sc. (Prosthodontics))--Mahidol University, 2008.
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Experimental investigation on the effects of surface roughness on microscale liquid flow /Brackbill, Tim. January 2008 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 2008. / Typescript. Includes bibliographical references (leaves 93-96).
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