04: Difference between surface and 500 hPa annual means (ppmv): fossil
| Model | Global mean | SH mean | NH mean |
|---|---|---|---|
| ANU | 0.943 | 0.117 | 1.653 |
| CSIR09 | 0.712 | -0.59 | 1.681 |
| CSU | 0.425 | -0.338 | 1.188 |
| GFDL | 0.530 | -0.421 | 1.481 |
| GISS | 0.176 | -0.131 | 0.482 |
| MUGCM | 0.205 | -0.243 | 0.654 |
| MUTM | 0.201 | -0.177 | 0.578 |
| NCAR | 0.373 | -0.333 | 1.080 |
| NIRE | 0.585 | -0.204 | 1.374 |
| TM1 | 0.299 | -0.206 | 0.803 |
| TM2 | 0.308 | -0.114 | 0.812 |
| TM2Z (90) | 0.234 | -0.183 | 0.652 |