Each graph shows, for each observation time H ([H-3h00,H+3h00[ for long cut-off
analysis), daily evolution of brightness temperature GEOSTATIONARY RADIANCES
observations monitoring from METEOSAT, HIMAWARI and GOES geostationary satellites.
Daily statistics are calculated for each GEOSTATIONARY RADIANCES channel and
clear/cloudy sky or sea/land categories.
On these graphs are plotted average and standard-deviation curves of deviation from :
Bias correction is applied for only GEOSTATIONARY RADIANCES observations which are used
in NWP analysis.No bias correction is applied to observations which are blacklisted and
corresponding mean and standard deviation curves of deviation from analysis are
- first guess before and after bias correction
- first guess and analysis after bias correction