The refractivity products of FY-3C/GNOS were updated on Apr. 13, 2015. The updated products include two aspects.

1. Quality identifiers are tagged to refractivity profiles. The tag labelled as 100 shows that the profile is good. Please be careful when using these profiles labelled as 50 or 60.

2. The system errors in the rising and setting occultations are much removed.

                                  National Satellite Meteorological Center

                                  Contacts: Mi Liao (liaomi@cma.gov.cn)