CFCs及其代用品的全球增温潜能

本文用一维辐射·对流模式系统地研究了现有含氯氟烃气体(CFCs)及其可能代用品的辐射强迫、比地面增温效应和全球增温潜能(GWP).结果发现:大多数提议的代用品的GWP值明显小于现有的CFCs.这主要归因于:(1)它们所产生的辐射强迫和比地面增温效应较小,一般只有CFCs的50％—60％;(2)其大气寿命比CFCs短得多.

Global warming potential due to CFCs and their substitutes

The radiative forcing, Specific surface warming and global warming potential (GWP) due to the chrolofluorocarbons and their possible substitutes have been examed in detail by using an one-dimensienal radiative-convective model. The results show that the GWP values for most of the proposed substitutes to the CFCs are considerably smaller than those for the CFCs , Which are resulted from (1) the radiative forcing and specific surface warming due to the substitutes are less than the CFCs, in general, by 50%- 60% ; and (2) the atmospheric life time of the substitutes is much shorter .