A New Variational Assimilation Method Based on Gradient Information from Satellite Data

Table 3

Schemes of numerical test.

Test grouping	Initial field	Bias correction method
AIRS	NCEP + AIRS	No bias correction
AIRS_GRD	NCEP + AIRS	Gradient information assimilation
AIRS_VarBC	NCEP + AIRS	WRFDA_VarBC