MLS V4

UARS MLS PARAMETER: O3_183

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

Plots for this month (pdf)
ASCII Data file of significant spikes for this month

File Creation Date: 29-Oct-2001 Spikecatcher revision date: 18-Oct-2001
Quality Indicator for Month (QIM) [for v500 . dat_1 ] = 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_183 Band)	B	S	P	M	T	t	G
4	0	0	0	0	775	0	38671
3	0	0	0	0	0	0	2
2	0	0	0	0	0	0	12
1	87	3	0	1	0	0	0
0	0	0	0	0	0	0	0

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.
Total records this month with MMAF_STAT = G/T/t and DQI = 4: 39446
Total records this month with MMAF_STAT = G/T/t and DQI = 4/2: 39458
Total records with MMAF_STAT = G/T/t and DQI = 4 with at least one spike greater than 5.0 sigma: 65 (fraction = 1.65e-03 )
Total records with MMAF_STAT = G/T/t and DQI = 4/2 with at least one spike greater than 5.0 sigma: 66 (fraction = 1.67e-03 )
Total records with MMAF_STAT = G/T/t and DQI = 4 with at least one spike greater than 4.0 sigma: 421 (fraction = 1.07e-02 )

P (hPa)	4.0 to 5.0 sigma	5.0 to 10 sigma	> 10 sigma	total

0.010	7	1	0	8
0.015	4	1	0	5
0.022	8	0	0	8
0.032	7	0	0	7
0.046	12	0	0	12
0.068	40	2	0	42
0.100	24	3	0	27
0.147	14	3	0	17
0.215	14	1	0	15
0.316	13	3	0	16
0.464	11	0	0	11
0.681	30	12	0	42
1.00	17	2	0	19
1.47	7	4	0	11
2.15	5	0	0	5
3.16	14	1	0	15
4.64	4	2	0	6
6.81	15	1	0	16
10	16	0	1	17
15	42	4	0	46
22	33	9	0	42
32	39	7	0	46
46	28	3	0	31
68	24	5	0	29
100	20	7	0	27

Records with spikes > 5.0 sigma

Day	Record	MMAF STAT	DQI	Lat	Lon	P (hPa)	O3_183 (ppmv)	UNCERT (ppmv)	sigma factor

54	88	G	4	32N	74	0.100	0.1	0.4	5.1
54	144	G	4	31S	317	4.64	10.3	0.4	5.6
54	199	G	4	31S	104	3.16	8.9	0.3	6.6
54	222	G	4	65S	270	0.215	1.8	0.5	5.0
54	310	G	4	66S	246	0.100	1.7	0.5	5.2
54	663	G	4	63S	151	0.068	1.2	0.6	5.3
54	839	G	4	64S	102	0.147	1.7	0.6	5.8
54	1240	G	4	18N	140	100	2.3	0.3	5.3
55	401	G	4	66S	215	0.147	1.6	0.5	5.3
55	842	G	4	64S	96	0.068	1.1	0.5	5.0
55	974	G	4	28N	192	0.100	-0.0	0.5	5.4
56	510	G	4	3S	222	22	4.2	0.3	5.1
57	127	G	4	57S	126	1.47	5.8	0.3	7.3
57	1286	G	4	69S	316	0.147	1.5	0.8	5.1
64	1051	G	4	35S	14	100	-0.8	0.4	5.1
65	655	G	4	13N	253	68	-0.9	0.3	5.2
65	1014	G	2	7S	170	100, 68	3.7, -1.4	0.4, 0.3	9.2, 6.2
68	767	G	4	38S	241	15	4.4	0.4	5.1
69	3	G	4	49S	271	46	1.4	0.3	5.0
69	94	G	4	39S	252	22	1.6	0.3	6.6
69	150	G	4	26S	40	100	1.9	0.2	5.0
69	327	G	4	29S	353	22, 10, 6.81	2.9, 16.6, 6.4	0.4, 0.4, 0.4	6.0, 10.1, 7.6
69	682	G	4	39S	259	32, 22	2.1, 2.0	0.3, 0.3	6.4, 5.8
69	684	G	4	46S	263	46	1.2	0.2	5.2
69	769	G	4	35S	233	15	4.5	0.4	5.2
70	5	G	4	49S	265	46	1.3	0.3	5.2
70	7	G	4	42S	269	32	2.2	0.2	5.3
70	95	G	4	42S	245	100	-0.7	0.4	5.2
70	96	G	4	39S	246	22	1.6	0.3	6.5
70	97	G	4	35S	248	22	2.3	0.3	5.5
70	683	G	4	35S	252	22	2.1	0.3	5.8
70	684	G	4	39S	254	32, 22	2.2, 2.1	0.3, 0.3	6.2, 5.8
71	11	G	4	38S	265	32	2.6	0.3	5.1
71	685	G	4	32S	245	22	3.0	0.3	5.8
71	687	G	4	39S	248	32	2.2	0.3	6.0
72	14	G	4	38S	259	32	2.3	0.3	5.8
72	497	G	4	14N	261	68	-0.9	0.3	5.4
72	600	G	4	33S	264	100	-0.9	0.3	5.4
73	16	G	4	38S	254	32	2.5	0.3	5.2
73	31	G	4	10N	281	68	-1.3	0.3	6.5
73	973	G	4	76S	303	0.316	2.0	0.6	5.6
74	1177	G	4	5N	314	4.64	10.2	0.4	6.8
77	761	G	4	34N	114	0.316	2.9	0.5	5.6
78	673	G	4	34N	125	0.681	4.3	0.5	6.0
78	674	G	4	34N	129	0.681	4.2	0.5	5.6
78	675	G	4	34N	133	0.681	4.1	0.5	5.3
78	764	G	4	34N	113	0.316	2.8	0.6	5.0
78	766	G	4	33N	121	0.681	4.1	0.4	6.0
78	767	G	4	32N	125	0.681	4.4	0.4	7.0
78	768	G	4	30N	129	0.681	4.3	0.4	6.7
78	771	G	4	25N	139	1.47	6.2	0.5	5.7
79	582	G	4	27N	120	0.681	3.9	0.5	5.2
79	679	G	4	34N	132	1.00	5.4	0.4	5.1
79	770	G	4	32N	120	0.681	4.0	0.4	5.3
79	771	G	4	30N	124	0.681	3.9	0.4	5.3
79	773	G	4	27N	131	0.681	3.9	0.4	5.4
79	774	G	4	25N	134	1.47	6.2	0.5	5.8
79	775	G	4	23N	137	0.681	3.6	0.4	5.4
79	776	G	4	21N	140	1.47	5.7	0.5	5.5
79	786	G	4	7S	163	15	8.0	0.3	5.4
80	350	G	4	12S	281	68	-1.2	0.3	6.2
80	776	G	4	27N	125	1.00	4.7	0.3	5.3
81	589	G	4	31N	117	0.681	3.9	0.5	5.1
82	138	G	4	2S	196	100	-0.9	0.3	6.0
82	720	G	4	56S	195	0.015, 0.010	1.7, 2.3	0.8, 0.9	5.4, 5.7
82	787	G	4	13N	132	15	7.7	0.4	5.0

UARS MLS PARAMETER: O3_183

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

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