Creates an empty tibble with the standardised column structure for measurements data.
Details
Measurements represent quantitative observations combining sample, compartment, and biota information with analytical results and quality metrics. The tibble includes the following columns:
SITE_CODE: Code identifying the sampling location
PARAMETER_NAME: Name of the measured parameter (Foreign key)
SAMPLING_DATE: Date of sample collection
ENVIRON_COMPARTMENT_SUB: Specific environmental sub-compartment
SUBSAMPLE: Subsample identifier
MEASURED_FLAG: Quality flag for the measurement (e.g., < LOQ, < LOD)
MEASURED_VALUE: Numeric value of the measurement
UNCERTAINTY_TYPE: Type of uncertainty or variability metric
UNCERTAINTY_UPPER: Upper bound of uncertainty
UNCERTAINTY_LOWER: Lower bound of uncertainty
MEASURED_UNIT: Unit of measurement
MEASURED_N: Number of replicates or observations
LOQ_VALUE: Limit of quantification value
LOQ_UNIT: Unit for limit of quantification
LOD_VALUE: Limit of detection value
LOD_UNIT: Unit for limit of detection
SAMPLING_PROTOCOL: Protocol used for sample collection (Foreign key)
EXTRACTION_PROTOCOL: Protocol used for sample extraction (Foreign key)
FRACTIONATION_PROTOCOL: Protocol used for sample fractionation (Foreign key)
ANALYTICAL_PROTOCOL: Protocol used for analysis (Foreign key)
REFERENCE_ID: Reference identifier for data source (Foreign key)
SAMPLE_ID: Unique sample identifier
CAMPAIGN_NAME_SHORT: Short name of the associated campaign
ENVIRON_COMPARTMENT: Broad environmental compartment
PARAMETER_TYPE: Classification of the parameter
MEASURED_TYPE: Type of measurement
MEASUREMENT_COMMENT: Additional notes about the measurement
See vignette("measurements_data") for more information.
See also
Other initialise_tibble:
initialise_CREED_data_tibble(),
initialise_CREED_scores_tibble(),
initialise_biota_tibble(),
initialise_campaign_tibble(),
initialise_compartments_tibble(),
initialise_methods_tibble(),
initialise_parameters_tibble(),
initialise_references_tibble(),
initialise_samples_tibble(),
initialise_sites_tibble()
Other measurement:
measured_categories_vocabulary(),
measured_flag_vocabulary(),
measured_types_vocabulary(),
parameter_unit_vocabulary(),
uncertainty_types_vocabulary()