01: Annual surface means (ppmv): fossil
| Model | Global mean | SH mean | NH mean | NH-SH |
|---|---|---|---|---|
| ANU | 2.012 | 0.734 | 3.289 | 2.556 |
| CSIR09 | 2.358 | -0.004 | 4.719 |
4.723 |
| CSU | 1.682 | -0.029 | 3.394 | 3.423 |
| GFDL | 2.192 | 0.247 | 4.136 | 3.889 |
| GISS | 1.579 | 0.189 | 2.968 | 2.780 |
| MUGCM | 1.822 | 0.648 | 2.997 | 2.349 |
| MUTM | 1.660 | 0.485 | 2.834 | 2.349 |
| NCAR | 2.201 | 0.679 | 3.724 | 3.045 |
| NIRE | 1.906 | 0.250 | 3.561 | 3.311 |
| TM1 | 1.548 | -0.196 | 3.292 | 3.488 |
| TM2 | 1.577 | -0.105 | 3.258 | 3.364 |
| TM2Z (90) | 1.505 | -0.109 | 3.119 | 3.227 |