id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
119	Area codes missing from WMO routing headers	Dave Offiler	Dave Offiler	"While investigating why CHAMP data apparantly not being recieved by Meteo-France via GTS, Duncan Jeffrey (FROST admin) reported that some geographical area designators (A,E,I) have never been seen for CHAMP (routing headers ""IUT[A-L]14 EGRR"").

Area 'A' is 0-90W, 30-60N and would be expected to have many occultations per day. It seems more likely that the ARHs are not being correctly generated from the observation lat/lons. Further, since designators A,E,I are all 0-90W, this points to a longitude sign or range problem.

The ROPP encoder calls GTSHDRS() from the BUFR extras package; this routine has been well validated and is used for other data types, so the problem is most likley in the ROPP encoder itself.

The Area code in the ARH can in principle be used to filter observations to particular (large) geographic zones, but current users are all in global models and can be assumed to want all data. Hence this is not a show-stopper and can be corrected as part the next update release. "	defect	closed	normal	1.1	ropp_utils	1.0	fixed	BUFR ARH Area Code