cutting out region defined by mask ersstv5 nino4 mask.nc,
operating on NOAA ERSSTv5 (in situ only),
SSTA normalized to 1981-2010,
Nino4 index minus 20S-20N average SST,
normalised by a factor 1.4010;1.4134;1.4170;1.4308;1.4158;1.3508;1.2763;1.2716;1.2930;1.3335;1.3676;1.3945,
Nino4r [K] ERSST v5 relative Nino4 index,
(
eps,
pdf,
metadata,
raw data,
netcdf)