UARS MLS PARAMETER: O3_183

UARS MONTH: 9207
UARS DAYS: 0338 - 0375 ( Aug. 14, 1992 - Sep. 20, 1992 )

• Inspection Date: 31-Dec-1996
  
  
• Quality Indicator for Month (QIM) [for v422 ] = A
  
  
• Further actions recommended: None.
  
  
• Comments: There was some moon interference on several records of UARS days 363 and 364 (and these records are flagged as bad). NCEP stratospheric data (northern hemisphere) were missing for UARS day 351.
  
  
• Number of records in each DQI and MMAF_STAT category
  • MMAF_STAT: G, good data; t, missing NCEP temperatures below 22 hPa; T, missing NCEP temperatures below 100 hPa; M, missing tangent points; P, pointing anomaly; S, scan anomaly; B, bad data.
  • DQI (Data Quality Indicator): 4, good radiance fit/good radiances; 3, good radiance fit/some bad radiances; 2, bad radiance fit/good radiances; 1, bad radiance fit/some bad radiances; 0, anomaly/no fit.
  
  

  Quality	MMAF STAT
  (O3_183 Band)	B	S	P	M	T	t	G
  4	0	0	1	6	540	0	49492
  3	0	0	0	0	0	0	0
  2	0	0	0	0	0	0	0
  1	44	0	0	0	0	0	0
  0	0	8	0	0	0	0	6

• Number of spikes
• These are spikes in the retrieved O3_183 mixing ratios for records with MMAF_STAT = G/T/t and DQI = 4/2 (that is, good records with good radiances). Spikes are identified by comparison of their deviation from the monthly zonal mean with the rms variability (sigma) calculated in distinct 6 degree latitude bins.
  
  

  P (hPa)	4 to 5 sigma	5 to 10 sigma	> 10 sigma	total
  0.046	2	0	0	2
  0.100	0	0	0	0
  0.215	5	1	0	6
  0.464	8	0	0	8
  1	6	1	0	7
  2	5	0	0	5
  5	1	0	0	1
  10	37	12	0	49
  22	5	1	0	6
  46	8	0	0	8

  
  
• Total records this month with MMAF_STAT = G/T/t and DQI = 4: 50032
• Total records with MMAF_STAT = G/T/t and DQI = 4 with at least one spike greater than 5 sigma: 15 (fraction = 3.00e-04 )
• Total records with MMAF_STAT = G/T/t and DQI = 4 with at least one spike greater than 4 sigma: 91 (fraction = 1.82e-03 )


• Records with spikes > 5 sigma




Day	Record	MMAF STAT	DQI	Lat	Lon	P (hPa)	O3_183 (ppmv)	UNCERT (ppmv)	sigma factor
350	665	G	4	31S	135	0.215	2.5	0.5	5.6
360	326	G	4	78S	122	10	6.3	0.3	5.2
360	327	G	4	75S	134	10	6.3	0.3	5.0
360	415	G	4	75S	108	10	6.8	0.3	5.9
360	1290	G	4	77S	126	10	6.5	0.3	5.4
361	152	G	4	80S	149	10	6.2	0.3	5.1
361	153	G	4	78S	165	10	6.5	0.3	5.5
361	154	G	4	75S	177	10	6.4	0.3	5.2
361	241	G	4	78S	140	10	6.3	0.3	5.1
361	242	G	4	75S	151	10	6.9	0.3	6.2
361	330	G	4	76S	126	10	6.6	0.3	5.6
362	157	G	4	76S	169	10	6.5	0.3	5.3
365	357	G	4	21S	151	22	7.8	0.5	5.5
370	91	G	4	76S	147	10	6.4	0.3	5.1
375	745	G	4	2N	8	1	1.6	0.2	5.0

SUMMARY of GLOBAL V4 - V3 DIFFERENCES
/data/umls/l3at/o3_183_d0338_v422.dat_1 + 37 days
MMAF Stat = G/T/t, Quality = All
UARS Month 9207

Points per surface	50096
UARS Surface	P(hPa)	Avg. Diff. (ppmv)	S.D. Diff. (ppmv)	% Avg. Diff.	% S.D. Diff.
26	0.046	-0.06	0.09	-9	13
24	0.1	0.00	0.08	0	8
22	0.22	-0.08	0.10	-7	9
20	0.46	-0.13	0.11	-6	5
18	1.0	-0.11	0.17	-3	5
16	2.2	-0.55	0.22	-9	3
14	4.6	-0.32	0.29	-3	3
12	10	-0.06	0.33	0	4
10	22	0.04	0.22	0	3
8	46	0.14	0.26	7	13