The steady-state inventory of methane in the atmosphere is about 3E14 moles, and its lifetime in the atmosphere is about 10 years. Calculate the methane emission flux that would maintain this concentration in steady state. You will need to construct a mass balance budget for methane where the source equals the sink. What happens to the steady state methane concentration if the lifetime is decreased by a factor of 2, assuming no change in the emission flux? About how long would you expect it to take for the concentration in the air to approach this new steady state value?
The steady-state inventory of methane in the atmosphere is about 3E14 moles, and its lifetime in the atmosphere is about 10 years. Calculate the methane emission flux that would maintain this concentration in steady state. You will need to construct a mass balance budget for methane where the source equals the sink. What happens to the steady state methane concentration if the lifetime is decreased by a factor of 2, assuming no change in the emission flux? About how long would you expect it to take for the concentration in the air to approach this new steady state value?
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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The steady-state inventory of methane in the atmosphere is about 3E14 moles, and its lifetime in the atmosphere is about 10 years. Calculate the methane emission flux that would maintain this concentration in steady state. You will need to construct a mass balance budget for methane where the source equals the sink. What happens to the steady state methane concentration if the lifetime is decreased by a factor of 2, assuming no change in the emission flux? About how long would you expect it to take for the concentration in the air to approach this new steady state value?
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