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SUBJECT:        Monthly Raob Data Report of Manual Quality Control


The Raob Report for February, compiled from the Raob Recap statements in the
SDM logs, which does not necessarily include data that were rejected by
automated computer generated quality control, indicates the following:

(1)  Reports from 20 U.S. stations (Blocks 72 and 74) were cited at least
once; 9 were cited at least twice; and 5 were cited at least three times.
Of those, the following were cited more than three times or had two or more no
reports:

                    STATION__ DEL BAS COR XRP EFL SHO TOTAL
                    72215/FFC   1               4   1    6
                    72768/GGW                   6        6
                    74455/DVN                   6        6
                    72388/VEF                   4   1    5
                    72645/GRB                   3   1    4

On the 24th and 25th, FFC reported a flight equipment failure during one cycle
and ground equipment failures during the other three cycles.  GGW and DVN 
reported ground equipment failures from the 21st through the 24th.  VEF
reported ground equipment failures on the 1st and 2nd.  Finally, GRB reported
a flight equipment failure on the 12th and ground equipment failures for both
cycles on the 19th. 

(2)  Reports from 36 stations in blocks 04, 70, 71, 76, 78 and 91 were cited
at least once; 20 were cited at least twice; and 13 were cited at least three
times.  Of those, the following were cited more than three times or had two or
more no reports:

                    STATION__ DEL BAS COR XRP EFL SHO TOTAL
                    76458/MZT                  40       40
                    76654/MZL   1              25       26
                    70414/SYA                  16       16
                    91334/TKK   2              12   1   15
                    76256/GYM                  13       13
                    78866/SXM                   8   1    9
                    76679/MEX   6               1        7
                    76692/HYY   7                        7
                    78016/BDA   6                        6
                    76526/ZAC   2               3        5
                    76805/ACA                   4        4

MZL reported flight equipment failures throughout the month.  GYM and ACA also
reported several flight equipment failures throughout the month.  MZT reported
flight equipment failures throughout the first half the momth.  Throughout the
second half of the momth, MZT reported ground equipment failures.  SYA, TKK,
SXM, and ZAC also reported several ground equipment failures.  Manual deletions
for MEX and HYY were predominantly heights, temperature, and moisture for high
heights and warm temperatures.  Finally, BDA had several temperature and 
deletions due to super-adiabatic lapse rates.  Furthermore, there were numerous
reports of missing Part TTBB from BDA.

Citation Codes Key:
DEL  All or part of the raob was flagged for deletion.
BAS  A baseline hgt/station press error was corrected or purged.
COR  At least one correction other than baseline was made.
XRP  Station sent no report at all when one was required.
EFL  Equipment failure (codes 10142, 10144, 10158, etc.)
SHO  Raob flight was short; ie, to less than 400 mb.


This and related reports are available on the Web at . . .
http://www.nco.ncep.noaa.gov/sib/qap/raobqc/