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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 21 U.S. stations (Blocks 72 and 74) were cited at least
once; 7 were cited at least twice; and 3 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

(2)  Reports from 38 stations in blocks 04, 70, 71, 76, 78 and 91 were cited
at least once; 18 were cited at least twice; and 10 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
                    91212/GUM                  11       11
                    76654/MZL   1                   4    5
                    78016/BDA   5                        5
                    78988/CUR   4   3               1    5*
                    91165/LIH   4                   1    5
                    70414/SYA                   2   2    4

Station GUM reported ground equipment failures for all cycles from the 15th
through the 21st.  Regarding manual deletions, super adiabatic lapse rates
were the primary cause for deletions of temperatures and humidity at BDA and
LIH this month.  Finally, at station CUR, all heights were purged in three of
four instances of manual deletions due to baseline error at the site.

* 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/