REASON CODES ASSOCIATED WITH STEP CQCHT, PROGRAM CODE 005

Table 11. Reason codes associated with step "CQCHT", program code 005 (last revised 5/30/2001).

KEY:
     IN "R.CODE" COLUMN:
                                           B - OCCURS IN ALL OPERATIONAL VERSIONS OF CQCHT.
                                           N - CURRENTLY DOES NOT OCCUR IN ANY OPERATIONAL VERSION OF CQCHT.

     IN "MNEMONIC" COLUMN:
                                           @ - SET TO ORIGINAL QUALITY MARKER UNLESS ORIGINAL QUALITY MARKER WAS 2 IN WHICH CASE SET TO 1.
                                            # - NEW VALUE CALCULATED.
                                            & - NEW VALUE CALCULATED ONLY IF ITS QUALITY MARKER IS RESET TO 1.

R.CODE MEANING MNEMONICS AFFECTED AND NEW VALUE FOR OBS, Q.M.

00 B TEMPERATURE NOT CORRECTED, OK. TRC-> TQM=1

Communication and Computation Errors

Errors at a Single Interior Mandatory Level

R.CODE	MEANING	MNEMONICS AFFECTED AND NEW VALUE FOR OBS, Q.M.
01 B	SINGLE HEIGHT.	ZRC-> ZOB=&, ZQM=1/3/13
02 B	SINGLE TEMPERATURE.	TRC-> TOB=&, TQM=1/3/13
03 B	HEIGHT AND TEMPERATURE AT THE SAME LEVEL OR HEIGHT AND TEMPERATURE AT THE SAME LEVEL WITH RESIDUAL COMPENSATION.	TRC-> TOB=&, TQM=1/3/13 ZRC-> ZOB=&, ZQM=1/3/13

Errors at the Top Mandatory Level


R.CODE	MEANING	MNEMONICS AFFECTED AND NEW VALUE FOR OBS, Q.M.
05 B	HEIGHT, TEMPERATURE OR BOTH.	ZRC-> ZOB=&, ZQM=1/13 TRC-> TOB=&, TQM=1/13

Computation Error in Height at Mandatory Levels


R.CODE	MEANING	MNEMONICS AFFECTED AND NEW VALUE FOR OBS, Q.M.
06 B	HEIGHT COMPUTATION ERROR BETWEEN ANY TWO MANDATORY LEVELS.	ZRC-> ZOB=&, ZQM=1/3/13

Errors at Adjacent Mandatory Levels

R.CODE	MEANING	MNEMONICS AFFECTED AND NEW VALUE FOR OBS, Q.M.
07 B	HEIGHT AT TWO ADJACENT LEVELS.	ZRC-> ZOB=&, ZQM=1/3/13
08 B	TEMPERATURE AT TWO ADJACENT LEVELS.	TRC-> TOB=&, TQM=1/3/13
09 B	HEIGHT AT THE LOWER, AND TEMPERATURE AT THE UPPER OF TWO ADJACENT LEVELS.	ZRC-> ZOB=&, ZQM=1/3/13 TRC-> TOB=&, TQM=1/3/13
10 B	TEMPERATURE AT THE LOWER, AND HEIGHT AT THE UPPER OF TWO ADJACENT LEVELS.	ZRC-> ZOB=&, ZQM=1/3/13 TRC-> TOB=&, TQM=1/3/13

No Error

R.CODE	MEANING	MNEMONICS AFFECTED AND NEW VALUE FOR OBS, Q.M.
15 N	AUXILIARY LEVEL IN REGIONAL-OI VERSION RECALCULATED BY CQCHT (OBSOLETE).	ZRC-> ZOB=#, ZQM=@

Errors at Significant Levels

R.CODE	MEANING	MNEMONICS AFFECTED AND NEW VALUE FOR OBS, Q.M.
20 B	SIGNIFICANT LEVEL TEMPERATURE CORRECTED.	TRC-> TOB=#, TQM=1
21,23 B	NON-CORRECTABLE SIGNIFICANT LEVEL TEMPERATURE ERRORS.	TRC-> TQM=13
24,25 B	NON-CORRECTABLE SIGNIFICANT LEVEL TEMPERATURE ERRORS.	TRC-> TQM=3
22 B	???????????????????????????????????	TRC-> TQM=1

Surface Errors

R.CODE	MEANING	MNEMONICS AFFECTED AND NEW VALUE FOR OBS, Q.M.
100 B	SURFACE PRESSURE COMMUNICATION ERROR CORRECTED.	PRC-> POB=#, PQM=1
102 B	SURFACE TEMPERATURE ERROR CORRECTED.	TRC-> TOB=#, TQM=1
105 B	LIKELY SURFACE TEMPERATURE ERROR, TOO SMALL TO CORRECT; OR UNDETERMINED ERROR(S), POSSIBLY IN SURFACE PRESSURE.	TRC-> TQM=1/3/13 PRC-> PQM=1/3/13
106 N	SURFACE PRESSURE OBSERVATION ERROR.	PRC-> PQM=13

Observation Errors

R.CODE MEANING MNEMONICS AFFECTED AND NEW VALUE FOR OBS, Q.M.

30,35 B TEMPERATURE OBSERVATION ERRORS; REJECT OR USE WITH REDUCED WEIGHT. TRC-> TQM=3/13

36,37 B HEIGHT OBSERVATION ERRORS; REJECT OR USE WITH REDUCED WEIGHT. ZRC-> ZQM=3/13