METR 446 Test # 3 Name: Solution November 13, 2001 1)(25 pts) Assume the ocean is a gray-body with a wavelength-independent absorptance of 0.85. If the temperature of the ocean is 20 oC, at what solar zenith angle will the absorbed solar irradiance be equal to the emitted irradiance? You can neglect absorption or reflection within the atmosphere. omWKmWoooinoutoinoutKETETaETaEEaEETaTE0.751370)293)(1067.5(coscoscoscoscos242481414444=⎟⎟⎠⎞⎜⎜⎝⎛×=⎟⎟⎠⎞⎜⎜⎝⎛=Θ⇒=Θ⇒Θ=⇒=Θ===−−−σσσσεσ
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