Operational Data Checking

An automatic data checking system has been implemented at ECMWF to trigger warnings in case of anomalies affecting the quality or the availability of the data assimilated by the model. Selected statistical parameters (number of observations, bias correction, and mean bias-corrected background, analysis departures and probability of gross error) are checked against an expected range. An appropriate alert message (including a time series plot) is generated if statistics are outside the specified ranges. A severity level (slight, considerable, severe) is assigned to each message depending on how far statistics are from the expected values. Two kinds of ranges are used by the automatic checking: Soft and Hard limits. Soft limits are updated automatically using statistics from the last twenty days (extremes are excluded during this process). Hard limits are adjusted manually when required.

Currently, the automatic checking is limited to data passing through the minimisation process (including VarBC passive data). It's being applied twice a day to the delayed cut-off 4D-VAR cycles (00 and 12) and four times a day to the early delivery assimilation system (00,06,12 and 18).

The alarm system results are based on feedback information from the ECMWF data assimilation and consequently reflect the ECMWF data usage. Although most warnings are related to data problems, they may on occasion also be related to model issues. Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice. ECMWF accepts no responsibility for actions taken on the basis of these results.

Delayed cut-off 4DVAR at 2021-04-12 12:00

iasi
METOP-A IASI RADIANCES CHANNEL 236 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0063, expected range: 0.0038 0.0134
METOP-B IASI RADIANCES CHANNEL 254 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0834, expected range: -0.0727 -0.0719
METOP-B IASI RADIANCES CHANNEL 236 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0438, expected range: 0.0528 0.0584
METOP-C IASI RADIANCES CHANNEL 236 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0083, expected range: 0.0044 0.0159
cris
NPP CRIS RADIANCES CHANNEL 92 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1152, expected range: 0.1257 0.1331
NPP CRIS RADIANCES CHANNEL 110 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0449, expected range: -0.0341 -0.0253
NPP CRIS RADIANCES CHANNEL 86 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0470, expected range: -0.0407 -0.0335
NOAA20 CRIS RADIANCES CHANNEL 84 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0613, expected range: 0.0657 0.0712
NOAA20 CRIS RADIANCES CHANNEL 83 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0009, expected range: 0.0110 0.0122
NOAA20 CRIS RADIANCES CHANNEL 87 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0901, expected range: 0.1001 0.1019
NOAA20 CRIS RADIANCES CHANNEL 120 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0646, expected range: -0.0587 -0.0523
NOAA20 CRIS RADIANCES CHANNEL 123 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0314, expected range: -0.0232 -0.0184
NOAA20 CRIS RADIANCES CHANNEL 124 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0535, expected range: -0.0411 -0.0348
NOAA20 CRIS RADIANCES CHANNEL 125 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1013, expected range: -0.0901 -0.0854
NOAA20 CRIS RADIANCES CHANNEL 138 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1150, expected range: -0.1037 -0.0992
NOAA20 CRIS RADIANCES CHANNEL 143 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1081, expected range: -0.0925 -0.0912
NOAA20 CRIS RADIANCES CHANNEL 110 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0698, expected range: 0.0808 0.0865
NPP CRIS RADIANCES CHANNEL 106 : out of range
2 times in the last 10 days for at least one item
Considerable: avg_fgdepar=-0.0556, expected range: -0.0429 -0.0239
NPP CRIS RADIANCES CHANNEL 107 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_fgdepar=-0.0543, expected range: -0.0425 -0.0215
NPP CRIS RADIANCES CHANNEL 119 : out of range
Considerable: avg_fgdepar=-0.0650, expected range: -0.0482 -0.0163
NOAA20 CRIS RADIANCES CHANNEL 109 : out of range
2 times in the last 10 days for at least one item
Considerable: avg_fgdepar=-0.0459, expected range: -0.0392 -0.0258
gpsro
METOP-C GRAS RISING HEIGHT 46-48 KM : out of range
1 times in the last 10 days for at least one item
Severe: stdev_norm_fgdepar=0.7384, expected range: 0.1301 0.4612
COSMIC2-E2 GPSRO SETTING HEIGHT 12-14 KM : out of range
Slight: stdev_norm_fgdepar=0.9605, expected range: 0.7521 0.9013
Geostationary CSR
All GOES-16 ABI ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 74162.15 100014.55
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-5.8338, expected range: -5.1319 -4.7035
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 6390-6391 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=6.2488, expected range: 2.7606 4.4850
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10130-10131 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=6.6647, expected range: 3.7140 5.3656
Radiosondes
LAND TEMP TEMPERATURE (K) 24343 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=14.5672, expected range: 0.0000 4.6944
LAND TEMP TEMPERATURE (K) 24688 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-10.0969, expected range: -24.4948 19.4078
Severe: rms_fgdepar=10.0969, expected range: -14.3478 21.3308
Severe: avg_pge=0.9244, expected range: -1.7547 0.7500
LAND TEMP Q (G/KG) 28661 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.2220, expected range: 0.0000 0.8842
LAND TEMP Q (G/KG) 61052 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.6510, expected range: 0.0000 0.7822
LAND TEMP Q (G/KG) 36872 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.3434, expected range: 0.0000 1.2126
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=3.3229, expected range: 0.7893 2.3809
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Considerable: obs_number=334.0000, expected range: 265.2980 306.7020
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=174.0000, expected range: 226.2910 280.2090
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Considerable: obs_number=108.0000, expected range: 162.2798 186.8313
amdar
WIGOS AMDAR Q (G/KG) MVIXOAJA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.0252, expected range: 0.0000 1.2284
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 02995 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=18.8748, expected range: 0.0000 11.1801
Severe: avg_pge=0.8811, expected range: -0.4797 0.7168
synop
MANUAL LAND SYNOP RH2M (%) 42770 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8411, expected range: -0.1885 0.7500
MANUAL LAND SYNOP RH2M (%) 42915 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9929, expected range: -1.9838 0.7500
MANUAL LAND SYNOP RH2M (%) 42488 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=63.2534, expected range: -86.3168 131.8211
Severely_persistent: rms_fgdepar=63.2534, expected range: 0.0000 131.8211
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 64040 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8408, expected range: -1.5738 0.7500
BUFR LAND SYNOP RH2M (%) 86850 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9169, expected range: 0.5755 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60100 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8790, expected range: -0.4645 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 38191 : out of range
Severe: rms_fgdepar=46.0171, expected range: 0.0000 33.8079
Severe: avg_pge=0.9733, expected range: -0.8076 0.7500
MANUAL LAND SYNOP RH2M (%) 42500 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9845, expected range: -1.3850 0.7500
MANUAL LAND SYNOP RH2M (%) 62011 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9967, expected range: -1.3760 0.7500
MANUAL LAND SYNOP RH2M (%) 42674 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9998, expected range: -0.6603 0.7500
MANUAL LAND SYNOP RH2M (%) 78467 : out of range
Severe: avg_pge=0.9115, expected range: -0.7931 0.7500
MANUAL LAND SYNOP RH2M (%) 42709 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9661, expected range: -1.8408 0.7500
MANUAL LAND SYNOP Z (M) 38856 : out of range
Severe: avg_pge=0.9786, expected range: -0.0058 0.0091
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43355 : out of range
Severe: rms_fgdepar=416.6383, expected range: 0.0000 214.7757
Severe: avg_pge=0.8531, expected range: -0.6804 0.7500
BUFR LAND SYNOP RH2M (%) 81951 : out of range
Severe: avg_fgdepar=-61.2430, expected range: -36.9034 -19.2331
Severe: rms_fgdepar=61.7515, expected range: 26.9476 36.5416
BUFR LAND SYNOP RH2M (%) 10616 : out of range
Severe: rms_fgdepar=37.2440, expected range: 0.0000 19.0000
BUFR LAND SYNOP RH2M (%) 61297 : out of range
Severe: rms_fgdepar=33.0931, expected range: 0.0000 8.9278
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24725 : out of range
Severe: rms_fgdepar=667.2070, expected range: 0.0000 553.0362
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48375 : out of range
Severe: rms_fgdepar=485.4722, expected range: 0.0000 134.6684
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60177 : out of range
Severe: rms_fgdepar=443.2819, expected range: 0.0000 204.2289
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=103.0000, expected range: 80.4713 89.7509
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9402 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=538.8328, expected range: -658.7890 1707.2601
Severely_persistent: rms_fgdepar=705.6027, expected range: 0.0000 1644.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) IDDEU03 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-901.3715, expected range: -707.0869 602.1485
Severely_persistent: rms_fgdepar=901.3715, expected range: -535.6477 707.6819
Severely_persistent: avg_pge=0.9457, expected range: -0.9681 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) SJA4RSK : out of range
33 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-510.6015, expected range: -1624.1051 1165.6494
Severely_persistent: rms_fgdepar=511.6962, expected range: -1065.8263 1561.9545
Severely_persistent: avg_pge=0.9034, expected range: -1.8423 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCFR07 : out of range
Severe: avg_fgdepar=20.2668, expected range: -3.6451 11.2231
Severe: rms_fgdepar=20.2668, expected range: 0.0000 11.9978
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRLK7 : out of range
Severe: avg_fgdepar=22.3826, expected range: -3.5127 11.9262
Severe: rms_fgdepar=22.3826, expected range: 0.0000 11.5843
Severe: avg_pge=0.9129, expected range: -0.8063 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRHY7 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8829, expected range: -0.9574 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5DS2 : out of range
Severe: rms_fgdepar=349.1042, expected range: 0.0000 124.3751
BUFR SHIP SYNOP SURFACE PRESSURE (PA) DJNY2 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=595.1576, expected range: 0.0000 175.0104
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRFX6 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=713.5666, expected range: -547.5837 737.3681
Severe: rms_fgdepar=713.5666, expected range: 0.0000 672.9875
Severe: avg_pge=0.8570, expected range: -1.0018 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLK7 : out of range
Severe: avg_fgdepar=567.8138, expected range: -6.8860 691.1616
Severe: rms_fgdepar=567.8138, expected range: 0.0000 692.2276
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200189 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8939, expected range: 0.3012 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501622 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=576.6442, expected range: -468.5363 459.5494
Severe: rms_fgdepar=589.0934, expected range: -379.2303 488.1065
Severe: avg_pge=0.8951, expected range: -0.7585 0.7500
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=118.0000, expected range: 136.0000 136.0000
metar
METAR SURFACE PRESSURE (PA) OPMJ : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-1052.0190, expected range: -2177.7142 1395.5790
Severely_persistent: rms_fgdepar=1053.0123, expected range: 0.0000 2116.1553
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71743 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-67.6180, expected range: -85.0116 -64.6684
Severely_persistent: rms_fgdepar=67.6180, expected range: 64.6684 85.0116
MANUAL LAND SYNOP SNOW (CM) 71816 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-66.6965, expected range: -79.2889 -61.5564
Severely_persistent: rms_fgdepar=66.6979, expected range: 61.5789 79.2767
BUFR LAND SYNOP SNOW (CM) 71816 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-66.6451, expected range: -79.2344 -61.3958
Severely_persistent: rms_fgdepar=66.6465, expected range: 61.4276 79.2155
AUTOMATIC LAND SYNOP SNOW (CM) 71604 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=59.3872, expected range: 50.2012 125.6850
Severe: rms_fgdepar=59.3872, expected range: 50.2012 125.6850
BUFR LAND SYNOP SNOW (CM) 15341 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=67.0000, expected range: -0.2912 0.1987
Severe: rms_fgdepar=67.0000, expected range: -0.4673 0.6458
BUFR LAND SYNOP SNOW (CM) 01374 : out of range
Severe: rms_fgdepar=23.3718, expected range: 0.0000 3.1712
t2m
METAR 2M TEMPERATURE (K) KNID : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.3179, expected range: -22.6159 -1.4319
Severely_persistent: rms_fgdepar=13.3179, expected range: 3.6977 22.1610
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42763 : out of range
Severe: avg_fgdepar=-13.7221, expected range: -1.1297 4.7697
Severe: rms_fgdepar=13.7221, expected range: 0.4563 4.4070
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24588 : out of range
Severe: rms_fgdepar=10.1144, expected range: 0.6941 4.6779
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25129 : out of range
Severe: rms_fgdepar=12.0425, expected range: 0.0000 12.5478
METAR 2M TEMPERATURE (K) KPAM : out of range
Severe: avg_fgdepar=-17.0499, expected range: -5.2165 5.2491
Severe: rms_fgdepar=17.0499, expected range: 0.0000 6.3901
LAND TEMP 2M TEMPERATURE (K) 61660 : out of range
Severe: avg_fgdepar=-12.4094, expected range: -15.4690 8.2767
Severe: rms_fgdepar=12.4094, expected range: 0.0000 15.0061
LAND TEMP 2M TEMPERATURE (K) 04089 : out of range
Severe: avg_fgdepar=12.2415, expected range: -1.3815 6.8014
Severe: rms_fgdepar=12.2415, expected range: 0.0000 6.8014
BUFR LAND SYNOP 2M TEMPERATURE (K) 25129 : out of range
Severe: avg_fgdepar=-12.0303, expected range: -17.3625 14.0951
Severe: rms_fgdepar=12.0927, expected range: 0.0000 12.6006
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=220.0000, expected range: 308.5237 419.5940