Slot: Reason Station Distance Is Missing (linkage_max_distance_to_station_m_missing_reason)
Reason linkage_max_distance_to_station_m is null.
Tier: optional
Why this slot matters
Distinguishes "not applicable — the data is gridded, not station-based" from an undocumented cutoff; a bare null hides whether unlimited-distance station matches were allowed.
In plain terms
When the maximum-station-distance field is empty, this says why.
URI: envar:slot/linkage_max_distance_to_station_m_missing_reason
Applicable Classes
| Name |
Description |
Modifies Slot |
| LinkageMethod |
How a gridded environmental value gets attached to a patient: the resolution ... |
no |
Properties
Type and Range
Cardinality and Requirements
Examples
Annotations
| property |
value |
| tier |
optional |
| justification |
Distinguishes "not applicable — the data is gridded, not station-based" from an undocumented cutoff; a bare null hides whether unlimited-distance station matches were allowed. |
| explanation |
When the maximum-station-distance field is empty, this says why. |
Schema Source
Mappings
| Mapping Type |
Mapped Value |
| self |
envar:linkage_max_distance_to_station_m_missing_reason |
| native |
envar:linkage_max_distance_to_station_m_missing_reason |
LinkML Source
name: linkage_max_distance_to_station_m_missing_reason
annotations:
tier:
tag: tier
value: optional
justification:
tag: justification
value: Distinguishes "not applicable — the data is gridded, not station-based"
from an undocumented cutoff; a bare null hides whether unlimited-distance station
matches were allowed.
explanation:
tag: explanation
value: When the maximum-station-distance field is empty, this says why.
description: Reason `linkage_max_distance_to_station_m` is null.
title: Reason Station Distance Is Missing
examples:
- value: not_applicable
description: strategy is gridded extraction, not nearest-station
from_schema: https://w3id.org/linkml/microschemas/envar
rank: 1000
domain_of:
- LinkageMethod
range: MissingReasonEnum