Impact of Multivariate Background Error Covariance on the WRF-3DVAR Assimilation for the Yellow Sea Fog Modeling

Figure 6

Analysis increments in the single-observation experiments for CV6 (upper row) and CV5 (lower row): horizontal distribution of analysis increments of temperature (a, e) and mixing ratio (c, g) at the bottom model level when the single observation is at the same level; analysis increments of temperature (b, f) and mixing ratio (d, h) at individual levels (vertical axis) when the single observation is specified at each level (horizontal axis).