CF012

Attribute: QC_LEVEL

code		description
1A		Data is published and unlikely to change - automated range checking and manual review has been conducted. Quality is indicated in data value qualifier flags.
1D		Data is published and unlikely to change - data is derived or aggregated from published data of level 1A
1P		Data is provisional and subject to revision - preliminary quality checks have been performed
2A		Data is published and unlikely to change - Level 1A data has been modified such that data gaps may be filled or problem data may be removed
2D		Data is published and unlikely to change - data is derived or aggregated from published data of level 2A