An Intercomparison of GPS RO Retrievals with Colocated Analysis and In Situ Observations within Tropical Cyclones

Table 1

GPS RO missions providing RO measurements through tropical cyclone regions defined via the respective years HBTRA.

Mission	Mission ID	Operation	1DVAR
GPS METeorology	GPS/MET	1995–1997	ECMWF
Satellite de Aplicaciones Cientificas-C	SAC-C	2001-2002	ECMWF
CHAllenging Minisatellite Payload	CHAMP	2001	ECMWF
Constellation Observing System for Meteorology, Ionosphere, and Climate	COSMIC	2006	GFS/AVN