The 2015 GCOS Status Report, Status of the Global Observing System, is now open for public review. The deadline for contributions is 7 September 2015. The draft report can be downloaded from the GCOS website.
The El Niño – Southern Oscillation (ENSO) is the dominant mode of interannual climate variability on Earth, with worldwide impacts. Because ENSO involves a complex interplay of ocean and atmospheric processes, accurately modelling this climate phenomenon with coupled General Circulation Models (GCMs), and understanding and anticipating its behaviour in a warming climate, still pose major challenges.