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SUBJECT:        Monthly Raob Data Report of Manual Quality Control


The Raob Report for March, 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 18 U.S. stations (Blocks 72 and 74) were cited at least
once; 8 were cited at least twice; and 2 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
                    72235/JAN   4   1               1    4*

Three of the four manual deletions for JAN were for temperature and moisture
due to super-adiabatic lapse rates.

(2)  Reports from 40 stations in blocks 04, 70, 71, 76, 78 and 91 were cited
at least once; 19 were cited at least twice; and 11 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                  52       52
                    76654/MZL   3              25       28
                    91348/PNI   1              11       12
                    76256/GYM                  10       10
                    76679/MEX  10   1                   10*
                    76805/ACA                   9        9
                    78073/NAS   1               8        9
                    70414/SYA                   7        7
                    78016/BDA   5                        5
                    76526/ZAC   3   2                    4*

Ground equipment failures were reported throughout the month by MZT and NAS.
PNI also reported ground equipment failures from the 26th through the 31st.
SYA reported ground and flight equipment failures throughout the month.  MZL,
GYM, and ACA also reported flight equipment failures throughout the month.  Most
manual deletions for MZL and BDA were for temperature and moisture due to super
adiabatic lapse rates.  Finally, MEX and ZAC had height and temperature deletions
in March.

* The total differs from the sum of the itemized citations
  because of multiple citations in the same raob(s).


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/