Slot: Heat-Wave Threshold Definition (heat_wave_threshold_definition)

For heat-wave flags, the definition of the threshold (absolute, percentile-local, percentile-climatological, NWS advisory, ETCCDI).

Tier: conditionally_core

Why this slot matters

At least seven heat-wave definitions are in active use and none are convertible after the fact; two definitions can disagree on most flagged days, which changes both the exposure series and the resulting mortality estimate.

In plain terms

There is no universal definition of a heat wave. "Above 35 °C" and "hotter than 95 % of days usually are here" are both in use and flag different days — this field records which rulebook was applied.

URI: envar:slot/heat_wave_threshold_definition

Applicable Classes

Name	Description	Modifies Slot
DerivedHeatMetric	Methodology slots specific to derived heat metrics (WBGT, Heat Index, UTCI, a...	no

Properties

Type and Range

Property	Value
Range	HeatWaveThresholdDefinitionEnum
Domain Of	DerivedHeatMetric

Cardinality and Requirements

Property	Value

Examples

Value
percentile_local

Identifier and Mapping Information

Annotations

property	value
tier	conditionally_core
justification	At least seven heat-wave definitions are in active use and none are convertible after the fact; two definitions can disagree on most flagged days, which changes both the exposure series and the resulting mortality estimate.
explanation	There is no universal definition of a heat wave. "Above 35 °C" and "hotter than 95 % of days usually are here" are both in use and flag different days — this field records which rulebook was applied.

Schema Source

from schema: https://w3id.org/linkml/microschemas/envar

Mappings

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

LinkML Source

name: heat_wave_threshold_definition
annotations:
  tier:
    tag: tier
    value: conditionally_core
  justification:
    tag: justification
    value: At least seven heat-wave definitions are in active use and none are convertible
      after the fact; two definitions can disagree on most flagged days, which changes
      both the exposure series and the resulting mortality estimate.
  explanation:
    tag: explanation
    value: There is no universal definition of a heat wave. "Above 35 °C" and "hotter
      than 95 % of days usually are here" are both in use and flag different days
      — this field records which rulebook was applied.
description: For heat-wave flags, the definition of the threshold (absolute, percentile-local,
  percentile-climatological, NWS advisory, ETCCDI).
title: Heat-Wave Threshold Definition
examples:
- value: percentile_local
  description: 95th percentile of the local Tmax distribution
from_schema: https://w3id.org/linkml/microschemas/envar
see_also:
- https://en.wikipedia.org/wiki/Heat_wave
rank: 1000
domain_of:
- DerivedHeatMetric
range: HeatWaveThresholdDefinitionEnum