Research Article

Brewer–Dobson Circulation: Recent-Past and Near-Future Trends Simulated by Chemistry-Climate Models

Figure 5

Annual and seasonal mean mass flux trends (units: 109 kg s−1 decade−1) at 70 hPa from the CCMs’ ensemble mean during 1960–2000 (blue boxes) and 2001–2050 (red boxes): (a) tropical upwelling; (b) SH downwelling; (c) NH downwelling.
(a) Tropical upwelling
(b) SH downwelling
(c) NH downwelling