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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-05 12:00

cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14938.83 15902.54
mwhs2
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 6 : out of range
Severe: stdev_norm_fgdepar=1.1404, expected range: 0.8021 0.9620
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 15 : out of range
2 times in the last 10 days for at least one item
Severe: stdev_norm_fgdepar=1.4724, expected range: 0.5791 1.0615
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 7 : out of range
2 times in the last 10 days for at least one item
Considerable: stdev_norm_fgdepar=1.0027, expected range: 0.6560 0.8810
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11435.34 14046.20
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 66.57 1138.60
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1577.61
Geostationary CSR
GOES-17 GEOS RADIANCES CHANNEL 7 : out of range
Severe: stdev_fgdepar=0.5957, expected range: 0.2702 0.3920
Radiosondes
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.7664, expected range: 0.8400 8.9824
Severely_persistent: rms_fgdepar=6.8497, expected range: 1.0080 9.1683
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=7.8879, expected range: -7.2139 22.5004
Severely_persistent: rms_fgdepar=8.0673, expected range: 0.0000 22.5409
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severely_persistent: obs_number=0, expected range: 122.26 184.94
All HIGH RESO SEA TEMP ALL LAYERS North West Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 297.11
LAND TEMP Q (G/KG) 42867 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.7044, expected range: 0.0000 1.5796
HIGH RESO LAND TEMP Q (G/KG) 51656 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=6.3082, expected range: -0.7355 5.8035
Severe: rms_fgdepar=6.3082, expected range: 0.0000 5.8035
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=107.0000, expected range: 176.8363 191.4137
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 66 : all data missing
Severe: obs_number=0, expected range: 13.57 360.17
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severe: obs_number=0, expected range: 51.26 221.24
HIGH RESO SEA TEMP Q (G/KG) ZVQEQCM PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.3781, expected range: 0.1133 0.8031
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=257.0000, expected range: 166.2857 184.1587
amdar
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-7.2012, expected range: -11.1880 0.5934
Severely_persistent: rms_fgdepar=7.3222, expected range: 0.3096 11.2162
WIGOS AMDAR WIND VECTOR DIFF (M/S) KTLMMDJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.3508, expected range: 0.0000 6.9764
MODE-S WIND VECTOR DIFF (M/S) M25A94C PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.5379, expected range: 0.0000 6.0541
prof
All EUROPEAN WIND PROFILER ALL LAYERS South West Pacific : all data missing
Severe: obs_number=0, expected range: 0.00 1179.27
All EUROPEAN WIND PROFILER ALL LAYERS West pacific Tropica : all data missing
Severe: obs_number=0, expected range: 0.00 1179.27
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42314 : out of range
Severe: rms_fgdepar=582.6510, expected range: 0.0000 351.9356
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62259 : out of range
Severe: rms_fgdepar=555.8115, expected range: 0.0000 76.5278
MANUAL LAND SYNOP RH2M (%) 67280 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9998, expected range: -1.4914 0.7500
MANUAL LAND SYNOP RH2M (%) 80419 : out of range
Severe: rms_fgdepar=31.5066, expected range: 5.0272 18.9676
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91682 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=582.0453, expected range: -268.9787 323.7447
Severe: rms_fgdepar=582.0453, expected range: 0.0000 499.8269
Severe: avg_pge=0.9141, expected range: -0.9340 0.7500
BUFR LAND SYNOP RH2M (%) 29231 : out of range
Severe: rms_fgdepar=37.8777, expected range: 0.0000 28.2698
Severe: avg_pge=0.8639, expected range: -0.0142 0.0242
BUFR LAND SYNOP RH2M (%) 04162 : out of range
Severe: avg_fgdepar=-55.0821, expected range: -48.4963 86.5870
Severe: rms_fgdepar=55.1083, expected range: 0.0000 60.9648
Severe: avg_pge=0.9978, expected range: -0.4505 0.6210
BUFR LAND SYNOP RH2M (%) 08548 : out of range
Severe: avg_pge=0.8571, expected range: -1.0596 0.7500
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXFU2 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=556.4643, expected range: 284.7050 751.2063
Severely_persistent: rms_fgdepar=556.6230, expected range: 284.3389 752.0487
Severely_persistent: avg_pge=0.8141, expected range: 0.7000 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=759.3247, expected range: -1051.8737 2219.0513
Severely_persistent: rms_fgdepar=759.3247, expected range: 0.0000 2041.1124
Severely_persistent: avg_pge=0.8656, expected range: -0.7240 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VKU8 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=985.3554, expected range: 622.9250 1290.0898
Severely_persistent: rms_fgdepar=985.3554, expected range: 624.0526 1289.8071
SHIP SURFACE PRESSURE (PA) WTEK : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-614.9872, expected range: -927.4554 690.2601
Severe: rms_fgdepar=617.1992, expected range: 0.0000 689.7578
Severe: avg_pge=0.8988, expected range: -1.1802 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTEK : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-511.4063, expected range: -953.0153 749.0725
Severe: rms_fgdepar=512.2114, expected range: 0.0000 623.7407
Severe: avg_pge=0.8861, expected range: -0.7692 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDL2611 : out of range
Severe: rms_fgdepar=319.4517, expected range: 0.0000 141.3006
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK51 : out of range
Severe: rms_fgdepar=530.7579, expected range: 0.0000 447.7285
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6XB4 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=432.9261, expected range: 0.0000 181.7026
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRUC4 : out of range
Severe: avg_fgdepar=555.7950, expected range: -406.8719 352.6835
Severe: rms_fgdepar=557.7914, expected range: 0.0000 374.7595
Severe: avg_pge=0.8117, expected range: -1.1768 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6NR7 : out of range
Severe: rms_fgdepar=424.5376, expected range: 0.0000 130.3865
Severe: avg_pge=0.8632, expected range: -0.4024 0.6044
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HRJ9 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=412.0213, expected range: 0.0000 143.4627
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRNU9 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=1160.2976, expected range: 863.1201 1469.3107
Severe: rms_fgdepar=1160.4097, expected range: 869.0697 1465.3379
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRGV9 : out of range
Severe: avg_fgdepar=-798.1301, expected range: -466.3327 364.1285
Severe: rms_fgdepar=798.1301, expected range: 0.0000 457.5987
Severe: avg_pge=0.8976, expected range: -0.7904 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FAZ9 : out of range
Severe: avg_fgdepar=527.1809, expected range: -913.1718 1165.6677
Severe: rms_fgdepar=527.1809, expected range: 0.0000 1003.4816
BUFR SHIP SYNOP SURFACE PRESSURE (PA) H3JW : out of range
Severe: avg_fgdepar=1061.9036, expected range: -221.9056 201.1728
Severe: rms_fgdepar=1061.9036, expected range: 0.0000 199.1456
Severe: avg_pge=0.9064, expected range: -0.2095 0.2374
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KGTY : out of range
Severe: rms_fgdepar=337.8067, expected range: 0.0000 160.9105
buoy
DRIBU WIND VECTOR DIFF (M/S) 23451 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8784, expected range: 0.1552 0.7500
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8973, expected range: -0.6170 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501741 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=658.4357, expected range: -1160.1036 894.2868
Severely_persistent: rms_fgdepar=663.6637, expected range: 0.0000 995.5836
Severely_persistent: avg_pge=0.9076, expected range: -0.9875 0.7500
snow
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=66.0000, expected range: 7.7023 86.5477
Severely_persistent: rms_fgdepar=66.0000, expected range: 8.8867 87.1016
MANUAL LAND SYNOP SNOW (CM) 87803 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-63.2182, expected range: -75.0396 -58.1761
Severely_persistent: rms_fgdepar=63.2182, expected range: 58.1761 75.0396
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-772.7459, expected range: -773.7052 -772.0391
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=772.7460, expected range: 772.0393 773.7052
BUFR LAND SYNOP SNOW (CM) 87803 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-63.2182, expected range: -75.1109 -57.0920
Severe: rms_fgdepar=63.2182, expected range: 57.0920 75.1109
t2m
METAR 2M TEMPERATURE (K) UGMS : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=15.4154, expected range: 8.8245 15.2723
Severely_persistent: rms_fgdepar=15.5485, expected range: 9.0986 15.2091
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36953 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.8446, expected range: 1.1913 5.6627
MANUAL LAND SYNOP 2M TEMPERATURE (K) 40356 : out of range
Severe: rms_fgdepar=11.2357, expected range: 0.0000 2.8892
METAR 2M TEMPERATURE (K) KHMN : out of range
Severe: avg_fgdepar=-14.7574, expected range: -8.9668 6.6182
Severe: rms_fgdepar=14.7574, expected range: 0.0000 11.0421
BUFR LAND SYNOP 2M TEMPERATURE (K) 66140 : out of range
Severe: rms_fgdepar=10.5554, expected range: 0.0000 5.4636