1. A) Calculate the wavelength of maximum energy emission and the total energy emitted each of...

A) Calculate the wavelength of maximum energy emission and the total energy emitted each of the following objects: a) A tree, with a surface temperature of 18 oC and an emissivity 0.98 (2); b) A lake, with a surface temperature of 10 oC and an emissivity of 0.98(2).

B) Calculate the surface temperature of the following objects with a wavelength of maximum energy emission of: a) 10 micrometers(1); b) 500 nanometers (1).

C) Calculate the surface temperature of the following objects (assume both have an emissivity of 1.0): a) 200 W m-2 (1); b) 400 W m-2 (1).

D) If you have 1000 W m-2 of incident solar radiation perpendicular to a surface, calculate the solar radiation you would have at zenith angles of; a) 45o (1); b) 60o (1).

E) Most aquatic algae require a minimum of 25% of the solar radiation at the top of the water’s surface for photosynthesis. If the water’s extinction coefficient is 0.5 m-1, what is the maximum depth you could expect algal growth? (2)

F) Twelve percent of the solar radiation reaches the forest floor. The extinction coefficient is 0.4 m-1. What is the leaf area index of the forest? (2)

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genius_generous answered 1 year ago

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