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dc.contributor.advisorDurkee, Philip A.
dc.contributor.advisorWash, Carlyle H.
dc.contributor.authorBrooks, Christopher K.
dc.dateJun-92
dc.date.accessioned2014-01-29T23:37:43Z
dc.date.available2014-01-29T23:37:43Z
dc.date.issued1992-06
dc.identifier.urihttp://hdl.handle.net/10945/38521
dc.descriptionApproved for public release; distribution is unlimited.en_US
dc.description.abstractMultispectral analysis methods are exercised using AVHRR channels 3, 4, and 5 to improve upon single-wavelength thermal imagery at night. An algorithm was developed yielding cloud location and water vapor distribution from channel 3-4 and 4-5 differences, respectively. Water vapor effects on pixel registration for cloud were examined using two candidate subscenes, one cloudy and dry, the other, cloudy and moist. A positive water vapor/cloud-free correlation was found using statistical techniques on the candidate subscene scatter plots. TOVS water vapor channels verified the analyzed water vapor pattern in the 4 - 5 difference image. V-shaped cloud/clear thresholds were applied to various subscene scatter plots to account for the positive correlation of water vapor-to-cloud registration. Results showed that in regions of higher water vapor concentrations, pixels nearest cloud boundaries were likeliest to be misclassified as clear. Images containing significant water vapor gradients and cloud variations required threshold refinement for best results.en_US
dc.description.urihttp://archive.org/details/multispectralnal1094538521
dc.format.extentviii, 73 p.: ill.;28 cm.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.subject.lcshBrightness temperature;Clouds;Identification;Water vapor, Atmospheric;Measurementen_US
dc.titleMultispectral analysis of maritime clouds at night in the presence of atmospheric water vaporen_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentMeteorology
dc.description.serviceCaptain, United States Air Forceen_US
etd.thesisdegree.nameM.S. in Meteorologyen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMeteorologyen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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