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# hw5_s09 - m and 8-14 m The intrinsic sensitivity(S of a...

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ABE 4034; Homework Problems – 5; Due on Thursday 2/12/09 Problem 1: Thermal infrared measurements of the sea at 10 ! m indicate a brightness temperature of 294.6 K at incidence angle of 0º and 293.3 K at an angle of 52º from zenith. Estimate the brightness temperature of sea surface and the optical thickness of the atmosphere at nadir ( " =0º), assuming that the atmosphere is an isothermal blackbody at a physical temperature of 280 K. Problem 2: Primarily two wavebands are used for thermal infrared remote sensing, 3-5
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Unformatted text preview: ! m and 8-14 ! m. The intrinsic sensitivity (S) of a radiometric observation at a given wavelength and temperature can be defined in terms of Planck’s radiation function as: ! " \$ % & ’% & ’( Find the sensitivity of the function at a temperature of 300K and a wavelength of (a) 4 ! m (b) 11 ! m Chapter 5 MRS-I page 338 Problem 5.2 Problem 5.3 Use only equation 5.22 to find the water vapor absorption coefficient. Problem 5.4 Use only equation 5.40 to find the oxygen absorption coefficient....
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