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NCEP Home > NCEP Central Operations > Quality Assessment Project > Raob "Thanks" Reports > "Thanks" Criteria

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"Thanks" Criteria

   
The Raob "Thanks" Reports program reports raob data set inventory as of
selected quarter hour intervals, especially from 0:45 to 2:00 hours after 00:00
and 12:00 UTC.  It is during these intervals that the coded data sets would 
expected to be disseminated from the stations.  Users may use this program to 
monitor receipt of raob data sets into the NCEP CCS (Central Computing System),
where the data must arrive for model ingest and to receive inventorial credit. 
This program reports in near real time (seldom more than a one minute delay) at 
the selected quarter hours, which makes it possible for station operators or
managers to detect possible communications problems, especially if their data
sets did not post as expected.  Note that all time references are UTC (Coordinated
Universal Time, which is equivalent to GMT (Greenwich Mean Time) and Z (Zulu) time.


The Raob "Thanks" Reports program consists of four station groups.

The USA (NWS) group consists of United States National Weather Service (NWS)
stations including Alaska, Hawaii, Puerto Rico, and Pacific island stations that
are NWS sponsored.

The USA (other) group consists of blocks 70, 72, and 74 stations that are non-NWS
sponsored.  These stations are mostly military installations, but can also be
sponsored by NASA or other agencies.

The Latin America group consists of stations located in Mexico, Central America,
South America, Caribbean Islands plus Bahamas and Bermuda.  Equivalently, blocks
76, 78, and 80 through 88 comprise this data group.  Notice that San Juan (78526)
is included in this group as well as the USA (NWS) group.

The Canada group consists of all block 71 (Canada) stations.  Any block 71
stations located beyond the Canadian provinces and territories are listed last.


Raob data sets are reported as three data subsets or groups.

Group A consists of only part TTAA.  A station will get capital A ('A') credit
for reporting part TTAA with at least two levels of observational data.  It is 
presumed that one level of data will be the surface data.  Therefore, an 'A'  
will be granted for at least one level of observational data aloft.  A station
will get lower-case A ('a') credit for reporting part TTAA with no observational
data.  Neither 'A' nor 'a' credit will be granted for a missing TTAA.

Group B consists of parts TTBB/PPBB except only TTBB for those stations that
report significant wind data within part TTBB.  A station will get capital B ('B')
credit for reporting at least two levels of data (surface data plus at least
one level aloft) including wind data in parts TTBB/PPBB or only part TTBB.  A
station will get lower-case B ('b') credit for reporting at least part TTBB that
contained no observational data or one level of data which presumably was the
surface data.  Neither 'B' nor 'b' credit will be granted for a missing TTBB.

Group C consists of parts TTCC/TTDD/PPDD except only TTCC/TTDD for those stations
that report significant wind data within part TTDD.  A station will get capital
C ('C') credit for reporting at least one level of observational data including
wind data in parts TTCC/TTDD/PPDD or only parts TTCC/TTDD.  A station will get
lower-case C ('c') credit if parts TTAA and TTBB have no data or one level of
observational data, and part TTDD came in with no data.  However, if part TTAA or
TTBB contained more than one level of observational data, and the raob failed to
reach 100 hPa (mb), then NWS stations must send all three group C parts with the
appropriate codes while all others are required to send only part TTDD that
contains no data to get 'c' credit.  Otherwise, the station will get neither 'C'
nor 'c' credit.

Whenever a station has earned all three capital letters (ABC), the denotation
'ABC' will be changed to 'THKS' (THANKS).

Examples:
a    - group A came in with insufficient data, and groups B and C were missing.
AB   - groups A and B came in with data, but group C was missing.
ABc  - groups A and B came in with data, but group C came in with no data.
  C  - group C came in with data, but groups A and B were missing.
AbC  - groups A and C came in with data, but group B came in with no data.
abc  - all groups came in but none with sufficient data.
THKS - all groups came in with sufficient data.  THANKS!
  

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