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Initial condition uncertainties

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Analysis and Background error variances of the day in observation space

LL for 1000-700 hPa, UTLS for 200-400 hPa

Valid Time background LL analysis/LL background/UTLS analysis/UTLS
D 00UTC
D-1 18UTC
D-1 12UTC
D-1 06UTC
D-1 00UTC

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Prior and posterior estimations definition interpretation