Research Article

Assimilation of MWHS-2/FY-3C 183 GHz Channels Using a Dynamic Emissivity Retrieval and Its Impacts on Precipitation Forecasts: A Southwest Vortex Case

Table 5

The mean and standard deviation of O-B and O-A and the number of assimilated observations for channels 11–15 in the AL and DY experiments at each analysis time.

MWHS-2/FY-3C channelsMean (O-B)Mean (O-A)Std (O-B)Std (O-A)OBS Num
ALDYALDYALDYALDYALDY

0000 UTC 23 June
 110.480.480.080.082.172.140.900.8911401356
 120.190.19−0.06−0.061.961.950.760.7611061187
 130.080.090.000.011.871.850.680.7011291213
 140.290.280.240.251.921.920.690.7110871129
 15−0.42−0.44−0.21−0.221.811.820.760.7810901133

1200 UTC 23 June
 11−0.02−0.070.000.002.162.170.850.8611441362
 12−0.18−0.17−0.07−0.071.981.980.720.749521035
 13−0.010.02−0.010.011.821.840.700.719621046
 140.450.470.260.281.771.790.730.74906958
 150.100.09−0.05−0.071.651.700.790.82918977

0000 UTC 24 June
 110.100.000.070.072.232.180.950.919681119
 120.01−0.080.020.012.042.040.820.819591039
 13−0.11−0.180.000.001.881.870.730.749841064
 14−0.01−0.030.110.121.791.790.740.769561008
 15−0.27−0.32−0.10−0.111.711.710.800.809601011

1200 UTC 24 June
 11−0.44−0.48−0.02−0.042.422.340.870.899361080
 12−0.44−0.580.040.002.312.180.800.83763864
 13−0.46−0.430.050.052.212.070.770.82766879
 14−0.39−0.220.150.192.152.000.830.88711814
 15−0.54−0.43−0.12−0.121.911.670.860.87722817