THE ROLE PLAYED BY THE STRATOSPHERE IN GREENHOUSE EFFECT

Two one-dimensional radiative-convective models with the same scheme and the different ranges that one is from surface to stratopause and the other is from surface to tropopause,have been developed to study the role played by the stratosphere in greenhouse effect.It is shown that the addition of stratospheric response may lead to an increase of 7-50 percent in radiative forcing at the tropopause,and an increase of 20-60 percent in surface temperature when the concentration of the same gas in the two models increases at the same time;and when the same change in radiative forcing at the tropopause due to the same agent in the two models occurs,the addition of stratospheric response may lead to an increase of 5-20 percent in surface temperature;and allowing for the stratospheric adjustment means that the temperature responses to the same flux change due to different causes are in far disagreement.