UARS MLS PARAMETER: O3_205

UARS MONTH: 9202
UARS DAYS: 0157 - 0193 ( Feb. 15, 1992 - Mar. 22, 1992 )

• Inspection Date: 30-Dec-1996
  
  
• Quality Indicator for Month (QIM) [for v422 ] = A
  
  
• Further actions recommended: None.
  
  
• Comments: There was some moon interference (for space view calibration) on several records of UARS days 185 and 186 (and these records are flagged as bad). UARS day 188 is a partial day because of UARS being off.
  
  On day 188, poor O3_205 retrievals are evident for a short time just after instrument turn-on (less than an orbit of data), primarily in the uppermost stratosphere; most of these poor retrievals are flagged with data quality indicator values of 2.
  
  
• 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	4	3	0	0	48044
  3	0	0	0	0	0	0	0
  2	0	0	0	0	0	0	35
  1	679	0	0	0	0	0	0
  0	0	14	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	11	26	1	38
  1	11	9	0	20
  2	1	1	0	2
  5	4	0	0	4
  10	9	2	0	11
  22	11	0	0	11
  46	4	1	0	5
  100	11	1	3	15

  
  
• Total records this month with MMAF_STAT = G/T/t and DQI = 4: 48044
• Total records this month with MMAF_STAT = G/T/t and DQI = 4/2: 48079
• Total records with MMAF_STAT = G/T/t and DQI = 4 with at least one spike greater than 5 sigma: 13 (fraction = 2.71e-04 )
• Total records with MMAF_STAT = G/T/t and DQI = 4/2 with at least one spike greater than 5 sigma: 41 (fraction = 8.53e-04 )
• Total records with MMAF_STAT = G/T/t and DQI = 4 with at least one spike greater than 4 sigma: 62 (fraction = 1.29e-03 )
• Total records with MMAF_STAT = G/T/t and DQI = 4/2 with at least one spike greater than 4 sigma: 91 (fraction = 1.89e-03 )


• Records with spikes > 5 sigma




Day	Record	MMAF STAT	DQI	Lat	Lon	P (hPa)	O3_205 (ppmv)	UNCERT (ppmv)	sigma factor
164	692	G	4	6N	304	100	3.7	-1.5	5.5
168	1133	G	4	18S	140	100	7.4	-1.3	13.9
184	876	G	4	EQ	24	100	7.1	-1.3	11.9
188	1046	G	2	51N	286	0.464	-1.2	0.5	5.9
188	1047	G	2	48N	288	1	-1.3	0.4	6.9
188	1048	G	2	44N	290	1,0.464	-0.7, -0.8	0.3, 0.5	7.3, 5.5
188	1049	G	2	41N	292	0.464	-1.5	0.5	6.9
188	1050	G	2	37N	293	0.464	-1.4	0.5	7.1
188	1051	G	2	34N	295	1	-0.3	0.3	7.6
188	1052	G	2	30N	297	1,0.464	0.7, -0.9	0.3, 0.5	5.5, 5.7
188	1053	G	2	27N	298	0.464	-1.3	0.5	6.5
188	1054	G	2	24N	300	1,0.464	0.6, -0.9	0.3, 0.5	5.6, 5.8
188	1055	G	2	20N	302	0.464	-1.3	0.5	6.4
188	1056	G	2	17N	303	0.464	-1.0	0.5	5.8
188	1058	G	2	10N	307	0.464	-1.9	0.5	8.1
188	1059	G	2	7N	308	0.464	-1.3	0.5	7.0
188	1060	G	2	4N	310	0.464	-0.6	0.4	5.3
188	1061	G	2	1N	312	1	0.2	0.3	5.6
188	1062	G	2	2S	314	1	0.4	0.3	5.2
188	1063	G	2	5S	316	1	0.5	0.3	5.2
188	1064	G	2	8S	318	1	0.6	0.3	5.2
188	1065	G	2	11S	321	0.464	-4.3	0.7	12.7
188	1067	G	2	16S	326	0.464	-1.2	0.5	6.3
188	1068	G	2	18S	328	0.464	-1.0	0.4	5.9
188	1069	G	2	21S	331	0.464	-0.6	0.5	5.1
188	1070	G	2	23S	334	0.464	-1.0	0.5	6.1
188	1071	G	2	25S	337	0.464	-1.6	0.5	7.4
188	1073	G	2	29S	344	0.464	-1.0	0.5	6.3
188	1074	G	2	30S	348	0.464	-1.0	0.5	6.4
188	1075	G	2	31S	352	0.464	-0.6	0.5	5.6
188	1076	G	2	32S	356	0.464	-1.1	0.4	6.6
188	1079	G	4	34S	8	0.464	-0.6	0.5	5.8
188	1080	G	4	34S	12	0.464	-0.9	0.4	6.4
188	1082	G	4	33S	21	0.464	-0.3	0.5	5.0
188	1083	G	4	32S	25	0.464	-0.4	0.5	5.1
188	1087	G	4	27S	39	0.464	-0.7	0.6	5.7
191	624	G	4	12N	51	10	8.5	0.3	5.7
191	807	G	4	9S	16	100	9.0	-1.4	16.4
191	988	G	4	22S	340	2	7.2	0.3	5.0
192	1111	G	4	13N	52	10	8.7	0.2	5.1
193	1309	G	4	79N	76	46	5.8	0.3	5.0

SUMMARY of GLOBAL V4 - V3 DIFFERENCES
/data/umls/l3at/o3_205_d0157_v422.dat_1 + 36 days
MMAF Stat = G/T/t, Quality = All
UARS Month 9202

Points per surface	48778
UARS Surface	P(hPa)	Avg. Diff. (ppmv)	S.D. Diff. (ppmv)	% Avg. Diff.	% S.D. Diff.
20	0.46	-0.03	0.09	-1	4
18	1.0	-0.12	0.11	-3	3
16	2.2	-0.07	0.14	-1	2
14	4.6	-0.03	0.16	0	2
12	10	-0.13	0.18	-1	2
10	22	-0.29	0.21	-4	3
8	46	-0.41	0.28	-18	12
6	100	0.36	0.47	46	61