UARS MLS PARAMETER: O3_205

UARS MONTH: 9109
UARS DAYS: 0054 - 0083 ( Nov. 4, 1991 - Dec. 3, 1991 )

• Inspection Date: 30-Dec-1996
  
  
• Quality Indicator for Month (QIM) [for v422 ] = A
  
  
• Further actions recommended: None.
  
  
• Comments: NCEP data were missing for UARS day 63 (this has a minor impact on MLS retrievals).
  
  
• 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_205 Band)	B	S	P	M	T	t	G
  4	0	0	0	1	775	0	38683
  3	0	0	0	0	0	0	1
  2	0	0	0	0	0	0	1
  1	87	0	0	0	0	0	0
  0	0	3	0	0	0	0	0

• Number of spikes
• These are spikes in the retrieved O3_205 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
  0.464	8	0	0	8
  1	9	0	0	9
  2	1	0	0	1
  5	14	0	0	14
  10	16	5	0	21
  22	44	12	0	56
  46	20	5	1	26
  100	9	2	1	12

  
  
• Total records this month with MMAF_STAT = G/T/t and DQI = 4: 39458
• Total records this month with MMAF_STAT = G/T/t and DQI = 4/2: 39459
• Total records with MMAF_STAT = G/T/t and DQI = 4 with at least one spike greater than 5 sigma: 24 (fraction = 6.08e-04 )
• Total records with MMAF_STAT = G/T/t and DQI = 4/2 with at least one spike greater than 5 sigma: 25 (fraction = 6.34e-04 )
• Total records with MMAF_STAT = G/T/t and DQI = 4 with at least one spike greater than 4 sigma: 139 (fraction = 3.52e-03 )
• Total records with MMAF_STAT = G/T/t and DQI = 4/2 with at least one spike greater than 4 sigma: 140 (fraction = 3.55e-03 )


• Records with spikes > 5 sigma




Day	Record	MMAF STAT	DQI	Lat	Lon	P (hPa)	O3_205 (ppmv)	UNCERT (ppmv)	sigma factor
55	955	G	4	16N	121	46	2.6	1.3	5.5
69	94	G	4	39S	252	22	2.0	0.2	5.8
69	682	G	4	39S	259	22	2.1	0.2	5.8
69	933	G	4	4N	164	100	7.3	-1.4	12.1
70	96	G	4	39S	246	22	1.9	0.3	5.9
70	683	G	4	35S	252	22	2.6	0.2	5.0
70	684	G	4	39S	254	22	2.4	0.2	5.2
71	99	G	4	38S	241	22	2.5	0.3	5.1
71	100	G	4	35S	242	22	2.6	0.2	5.0
71	685	G	4	32S	245	22	2.5	0.2	6.6
72	104	G	4	31S	238	22	3.3	0.2	5.2
72	688	G	4	32S	239	22	2.9	0.2	5.9
72	776	G	4	32S	215	22	3.2	0.2	5.3
73	778	G	4	32S	209	22	3.2	0.2	5.2
74	607	G	4	40S	256	46	0.2	0.3	5.5
74	608	G	4	43S	258	46	-0.2	0.3	6.6
74	609	G	4	47S	260	46	0.3	0.3	5.4
74	610	G	4	50S	261	46	0.6	0.3	5.1
74	856	G	4	9N	156	100	3.7	1.0	5.1
78	212	G	4	13S	188	10	9.2	0.2	5.4
79	215	G	4	13S	183	10	9.3	0.2	5.3
79	787	G	4	11S	165	10	9.3	0.2	5.1
81	405	G	4	14N	141	10	7.7	0.2	5.2
82	64	G	2	31N	259	100,46	-4.5, 8.7	0.7, 0.4	9.6, 13.5
82	408	G	4	15N	136	10	7.8	0.3	5.1

SUMMARY of GLOBAL V4 - V3 DIFFERENCES
/data/umls/l3at/o3_205_d0054_v422.dat_1 + 29 days
MMAF Stat = G/T/t, Quality = All
UARS Month 9109

Points per surface	39550
UARS Surface	P(hPa)	Avg. Diff. (ppmv)	S.D. Diff. (ppmv)	% Avg. Diff.	% S.D. Diff.
20	0.46	-0.02	0.09	-1	4
18	1.0	-0.11	0.11	-3	3
16	2.2	-0.06	0.13	-1	2
14	4.6	-0.03	0.16	0	2
12	10	-0.10	0.19	-1	2
10	22	-0.28	0.24	-4	3
8	46	-0.38	0.29	-17	13
6	100	0.29	0.49	41	70