Method
Question, instrument, training and collection rules
Water, biodiversity, air, waste, heat, accessibility, traffic and local-environment studies require explicit data quality protocols.
Citizens can help collect structured data.
Question, instrument, training and collection rules
Who, how many and selection limitations
Accuracy, observation period and coverage
Consistency, corroboration and anomaly review
Citizen-generated, partner-generated, official or research-generated
Participation and connectivity gaps remain visible