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Influence of look-angle on the water surface temperature observed with an IR radiometer
Institution:1. Department of Urban Planning and Environmental Policy, Texas Southern University, Houston, TX 77004, USA;2. Department of City and Regional Planning, The Ohio State University, Columbus, OH 43210, USA;1. Center for Engineering, Modelling and Applied Social Sciences, Federal University of ABC, Santo Andre, SP, Brazil;2. Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil;3. Graduate Program in Biotechnology and Environmental Monitoring, Federal University of São Carlos, Sorocaba, SP, Brazil;4. Isotopic Ecology Laboratory, Center of Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP, Brazil;5. Center for Limnology, University of Wisconsin-Madison, Madison, WI, USA;6. Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, MD, USA;7. Instituto de Biociências, Universidade Estadual Paulista (Unesp), Rio Claro, São Paulo 13506-900, Brazil;8. Escola de Artes, Ciências e Humanidades, Universidade de São Paulo, São Paulo, SP, Brazil
Abstract:The analysis of the data of sea surface temperature observed with a portable infrared radiometer from the fixed point on the seashore indicates a significant effect of observation(look) angle when it becomes larger than 70 degrees. An attempt is made to explain the effect by applying Fresnel's reflection law. A verification indicates a good agreement between the sea surface temperature observed with a portable thermal IR radiometer at large observation angles and that computed from Fresnel's reflection equation.
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