i) Interpret the ensemble of forecasts in each case and include a plot of each.

(ii) Comment on the degree of consensus between the CPC and ECMWF ensemble

forecasts.

(iii) Briefly explain why it is necessary to run an ensemble of forecasts in order to predict

ENSO.

The two graphs are listed below.

http://www.cpc.ncep.noaa.gov/products/people/wwang/cfsv2fcst/CFSv2SST8210.html

https://www.ecmwf.int/en/forecasts/charts/seasonal/seasonal_nino_plumes_public_eurosip?time

=2018010100,0,2018010100&nino_area=3.4