GPS Radio Occultation Data Assimilation in the AREM Regional Numerical Weather Prediction Model for Flood Forecasts

Table 2

Descriptions of the four experiments with their quality control schemes.

Experiment	With or without GTS data	With or without GPS RO refractivity data	With or without GPS data quality control
Control run test (CTRL)	No	No	No
Refractivity data local observational operator assimilation scheme (REF_NQC)	No	Yes	No
Conventional observation data assimilation scheme (STN)	Yes	No	No
GPS refractivity data local operator plus quality control assimilation scheme (REF_QC)	No	Yes	Yes