OBSERVATIONS
¥ Generated from the ÔtruthÕ plus Òrandom errorsÓ with
error standard deviations of 1 m/s (u), 1 m/s(v), 1K(T), 10-4 kg/kg (q) and 100Pa(Ps).
¥ Dense observation network: 1 every 2 grid points in x and
y direction
Tests within LETKF with SPEEDY
EXPERIMENTAL SETUP
¥ Run SPEEDY with LETKF for
two months ( January and February 1982) ,
starting from wrong (doubled) observational errors of 2 m/s (u), 2
m/s(v), 2K(T), 2*10-4 kg/kg (q) and 200Pa(Ps).
¥ Estimate and correct the
observational errors and inflation adaptively.