MLS V4

UARS MLS PARAMETER: H2O

Inspection Date: 28-Jan-1997
Quality Indicator for Month (QIM) [for v422 ] = A
Further actions recommended: Need to have UARS day 12 run with V4 since this was not done.
Comments: This first set of days shortly after launch includes some days with mostly non-useful atmospheric data because of testing and unusual operations. Only UARS days 8, 10, 11, and 12 contain mostly good atmospheric data.

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.

These are spikes in the retrieved H2O 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: 4833
Total records with MMAF_STAT = G/T/t and DQI = 4 with at least one spike greater than 5 sigma: 1 (fraction = 2.07e-04 )
Total records with MMAF_STAT = G/T/t and DQI = 4 with at least one spike greater than 4 sigma: 11 (fraction = 2.28e-03 )

P (hPa)	4 to 5 sigma	5 to 10 sigma	> 10 sigma	total

0.215	2	1	0	3
0.464	0	0	0	0
1	0	0	0	0
2	1	0	0	1
5	0	0	0	0
10	5	0	0	5
22	2	0	0	2
46	0	0	0	0