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MS004

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     
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