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Slot: Quality Flag Vocabulary (quality_flag_vocabulary)

Reference to the QA flag vocabulary (e.g. an EPA AQS qualifier-code list) used by the column named in DataLayout.quality_flag_column (see envar_layout).

Tier: optional

Why this slot matters

QA flags (e.g. "estimated", "below detection limit", "instrument malfunction") are only interpretable against the code list that defines them; without naming the vocabulary, a flagged value cannot be correctly filtered or trusted, so suspect measurements may enter the analysis unnoticed.

In plain terms

Some datasets tag individual values with short quality codes — think of the little footnote letters next to numbers in a table. This points to the key that explains what each code means, so you know which readings to trust or set aside.

URI: envar:slot/quality_flag_vocabulary

Applicable Classes

Name Description Modifies Slot
Uncertainty Uncertainty and quality character of a value series: per-value uncertainty ty... no

Properties

Type and Range

Property Value
Range String
Domain Of Uncertainty

Cardinality and Requirements

Property Value

Examples

Value
EPA AQS qualifier codes

Identifier and Mapping Information

Annotations

property value
tier optional
justification QA flags (e.g. "estimated", "below detection limit", "instrument malfunction") are only interpretable against the code list that defines them; without naming the vocabulary, a flagged value cannot be correctly filtered or trusted, so suspect measurements may enter the analysis unnoticed.
explanation Some datasets tag individual values with short quality codes — think of the little footnote letters next to numbers in a table. This points to the key that explains what each code means, so you know which readings to trust or set aside.

Schema Source

Mappings

Mapping Type Mapped Value
self envar:quality_flag_vocabulary
native envar:quality_flag_vocabulary

LinkML Source

name: quality_flag_vocabulary
annotations:
  tier:
    tag: tier
    value: optional
  justification:
    tag: justification
    value: QA flags (e.g. "estimated", "below detection limit", "instrument malfunction")
      are only interpretable against the code list that defines them; without naming
      the vocabulary, a flagged value cannot be correctly filtered or trusted, so
      suspect measurements may enter the analysis unnoticed.
  explanation:
    tag: explanation
    value: Some datasets tag individual values with short quality codes — think of
      the little footnote letters next to numbers in a table. This points to the key
      that explains what each code means, so you know which readings to trust or set
      aside.
description: Reference to the QA flag vocabulary (e.g. an EPA AQS qualifier-code list)
  used by the column named in `DataLayout.quality_flag_column` (see envar_layout).
title: Quality Flag Vocabulary
examples:
- value: EPA AQS qualifier codes
  description: Flag vocabulary for monitor-derived series; gridded products often
    have none.
from_schema: https://w3id.org/linkml/microschemas/envar
rank: 1000
domain_of:
- Uncertainty
range: string