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SUBJECT:        Monthly Raob Data Report of Manual Quality Control


The Raob Report for January, 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 30 U.S. stations (Blocks 72 and 74) were cited at least
once; 9 were cited at least twice; and 6 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
                    72202/MFL   8                        8
                    72393/VBG   6                        6
                    72230/BMX   2               2        4
                    72318/RNK   3                   1    4

The majority of deletions at all listed stations were for temperatures and
moisture due to super-adiabatic lapse rates.

(2)  Reports from 38 stations in blocks 04, 70, 71, 76, 78 and 91 were cited
at least once; 26 were cited at least twice; and 14 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
                    70308/SNP                  11       11
                    78988/CUR   1   1           9   1   11*
                    76405/LAP   3               7       10
                    70219/BET                   6        6
                    91165/LIH   5                        5
                    70414/SYA   1   1           2   1    4*
                    76526/ZAC   2               1   1    4
                    76595/CUN   3                   1    4
                    76654/MZL                   1   3    4
                    78397/KIN   2               2        4

Almost all equipment failure codes this month were ground equipment failures.
The exception is LAP, which sent a variety of '101' codes throughout the month.
Also, almost all systematic deletions were of temperatures and moisture due to
wet bulb effect.  Again, LAP is primary exception, in which the deletions at 
that site were due to high/warm heights/temperatures, as well as one duplicate
report.

* 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/