flags:
  100:
    validity: "V"
    description: "Checked by data originator. Valid measurement, overrides any invalid flags"
  110:
    validity: "V"
    description: "Episode data checked and accepted by data originator. Valid measurement"
  111:
    validity: "V"
    description: "Irregular data checked and accepted by data originator. Valid measurement"
  456:
    validity: "I"
    description: "Invalidated by data originator"
  559:
    validity: "V"
    description: "Unspecified contamination or local influence, but considered valid"
  652:
    validity: "V"
    description: "Construction/activity nearby"
  660:
    validity: "V"
    description: "Unspecified instrument/sampling anomaly"
  460:
    validity: "I"
    description: "Contamination suspected"
  599:
    validity: "I"
    description: "Unspecified contamination or local influence"
  659:
    validity: "I"
    description: "Unspecified instrument/sampling anomaly"
  999:
    validity: "I"
    description: "Missing measurement, unspecified reason"
  0:
    validity: "V"
    description: "Valid measurement"

# Define flag rankings with flag 0 as the absolute lowest
flag_ranking : {100: 100, 110: 80, 111: 75, 456: 60, 559: 50, 652: 40, 660: 30, 460: 28, 599: 26, 659: 24, 999: 20, 0: 10}