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 27 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
                    72632/DTX                  24       24
                    72764/BIS                   7        7
                    72340/LZK                   5   1    6
                    72357/OUN   1               3        4

All deletions at DTX, BIS, and LZK were due to ground equipment failures.
At station DTX, the failures all occcurred in the first half of the month,
and at stations BIX and LZK, all the failures occurred in the first few days
of the month.

(2)  Reports from 45 stations in blocks 04, 70, 71, 76, 78 and 91 were cited
at least once; 25 were cited at least twice; and 16 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
                    70361/YAK                  28       28
                    78384/GCM                  22       22
                    70133/OTZ   1              11       12
                    76743/VHA   2               4   4   10
                    70398/ANN                   6   1    7
                    78397/KIN   5                        5
                    91348/PNI   5                        5
                    70231/MCG                   4        4
                    76225/CUU   1                   3    4
                    76692/HYY   1   1               2    4

Station YAK reported a combination of power failures and ground equipment
failures throughout January.  Stations GCM, OTZ, VHA, ANN, and MCG reported
ground equipment failures throughout the month.  Most of the manual deletions
at stations KIN, PNI, and MCG were due to super-adiabiatic lapse rates.

* 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/pmb/qap/raobqc/