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C. COATANOAN & C. PERTUISOT

Status of Anomalies at GDAC

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Process of quality controlProcess of quality control

Anomalies at GDAC

Detection of anomalies

database

Argo data submission

Flow of raw data

ctd, xbt, …

Auto

mat

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ts, v

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cont

rol

Objective analysis

Examples of anomalies (some of them corrected after detected by objective analysis)Examples of anomalies (some of them corrected after detected by objective analysis)

• Drift on salinity

• Bad data on the last measurement (and first measurement)

• Bad salinity associated to spikes

• Bad data on a part of the profile (doubtful sensor)

How are detected the anomalies ?

What kind of anomalies are detected ?

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SpikeSpikeAnomalies at GDAC

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Anomalies at GDAC

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Anomalies at GDAC

CORRECTED

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Anomalies at GDAC

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Anomalies at GDAC

CORRECTED

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Anomalies at GDAC

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Anomalies at GDAC

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Anomalies at GDAC

CORRECTED

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Anomalies at GDAC

CORRECTED

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Anomalies at GDAC

- Some of all the detected anomalies are due to automatic tests - Some of all the detected anomalies are due to automatic tests that are not sufficient to detect bad data.that are not sufficient to detect bad data.

- Some are corrected directly by the DAC with, or not, feedback - Some are corrected directly by the DAC with, or not, feedback from the GDAC.from the GDAC.

- Actions done- Actions done : Automatic feedback : Automatic feedback (in text files) to DAC

• for incorrect greylist

• in order to update the flags : in order to update the flags :

a daily email which contains the list of Argo profils highlighted by Objective a daily email which contains the list of Argo profils highlighted by Objective Analysis and corrected by a Coriolis operator.Analysis and corrected by a Coriolis operator.

Informations also in csv format on Informations also in csv format on

ftp://ftp.ifremer.fr/ifremer/argo/etc/ObjectiveAnalysisWarningftp://ftp.ifremer.fr/ifremer/argo/etc/ObjectiveAnalysisWarning

- Using feedback from the Altimetry comparison to correct some - Using feedback from the Altimetry comparison to correct some profiles (see next presentation)profiles (see next presentation)

Object :Object :  Your greylist file collect failed aoml_greylist.csvYour greylist file collect failed aoml_greylist.csv

  

Sorry, your greylist file was rejected - DAC : aomlSorry, your greylist file was rejected - DAC : aoml

Metadata file doesn't exist for platform : 5900230Metadata file doesn't exist for platform : 5900230

Bad parameter FLUO for platform : 5900230Bad parameter FLUO for platform : 5900230

Invalid start date 20080232 for platform : 39008Invalid start date 20080232 for platform : 39008

Bad quality code 5 for platform : 39008Bad quality code 5 for platform : 39008

Bad DAC XX for platform : 39008 Bad DAC XX for platform : 39008