Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Timescales (in years) and amplitudes (in K) of GHG and ozone-hole CRFs, equation (4.2), in the region indicated. The range of CRF curves implied by the tabulated parameters are indicated by the blue shading in figure 3b with the thick blue line indicating the centre parameters.
| forcing | region | Tf(K) | Ts(K) | τf(y) | τs(y) |
|---|---|---|---|---|---|
| GHG | Arctic | 2.2±0.7 | 5.5±0.7 | 4.5±0.5 | 520±200 |
| GHG | Antarctic | 1.0±0.6 | 7.0±0.5 | 12±3.0 | 900±200 |
| O3 | Antarctic | −0.26±0.09 | 1.08±0.07 | 0.66±0.24 | 54±21 |
