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The ECHO metadata dialect includes two kinds of quality flags: QAStats and QAFlags. We examined sample granule metadata records for ~4100 collections to determine how these flags were currently used. This table shows the number of flags / record in metadata collections from sixteen DAACS. Cells that are shaded red indicate that no occurrences exist. These data indicate that four of the DAACs include a significant number of standard quality flags in their granule metadata.

Path Elements (Chart titles)ASFCDDISGES_DISCGHRCGSFCS4PALAADSLANCEAMSR2LANCEMODISLARCLARC_ASDCLPDAAC_ECSNSIDC_ECSOB_DAACORNL_DAACPODAACUSGS_EROS
QAFlags/AutomaticQualityFlag    3.45   0.100.322.310.81    
QAFlags/AutomaticQualityFlagExplanation    3.45   0.860.322.310.81    
QAStats/QAPercentMissingData    0.30   0.21 2.250.73   0.36
QAFlags/OperationalQualityFlag    0.30   0.10 0.820.62    
QAFlags/OperationalQualityFlagExplanation    0.30   0.10 0.820.62    
QAFlags/ScienceQualityFlag    0.30   0.61 2.280.73    
QAFlags/ScienceQualityFlagExplanation    0.14   0.06 2.280.73    
QAStats/QAPercentOutOfBoundsData    0.25   0.06 2.170.36    
QAStats/QAPercentInterpolatedData    0.10   0.01 2.17     
QAStats/QAPercentCloudCover        0.06 2.020.25   0.82
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