WeKG Ontology and Vocabulary
type: Ontology
imports: http://www.w3.org/2006/time#2016
imports: sosa
imports: ssn
source: https://github.com/Wimmics/weather-kg/blob/main/meteo/ontology/weatherdataset-model.ttl
creator: Catherine Faron
creator: Franck Michel
creator: Nadia Yacoubi
description: The WeKG ontology is a modular ontology that re-uses and extends standard ontologies, such as GeoSPARQL ontology for spatial features, the Time ontology for temporal entities, the Sensor, Observation, Sample, and Actuator (SOSA) and Semantic Sensor Network (SSN) ontologies for sensors and observations. Individuals of weo:WeatherProperty and weo:MeteorologicalFeature classes are declared in a separate namespace (wepv) as skos:Concept. The WeKG ontology and vocabulary are generic enough to be adopted and extended by meteorological data providers to publish and integrate their sources while complying with Linked Data principles.
license: https://creativecommons.org/licenses/by/4.0/
preferred namespace prefix: weo
plain text description: The WeKG ontology is a modular ontology that re-uses and extends standard ontologies, such as GeoSPARQL ontology for spatial features, the Time ontology for temporal entities, the Sensor, Observation, Sample, and Actuator (SOSA) and Semantic Sensor Network (SSN) ontologies for sensors and observations. Individuals of weo:WeatherProperty and weo:MeteorologicalFeature classes are declared in a separate namespace (wepv) as skos:Concept. The WeKG ontology and vocabulary are generic enough to be adopted and extended by meteorological data providers to publish and integrate their sources while complying with Linked Data principles.
version info: 1.1.0

Made By Station
type: ObjectProperty
domain: Restriction
  on property: Made By Station
  min qualified cardinality: 1
  on class: Meteorological Observation
range: Restriction
  on property: Made By Station
  qualified cardinality: 1
  on class: Weather Station

has Abbreviation
type: DatatypeProperty

Agroclimatic index
type: Class
label: indice agroclimatique @fr
definition: An index relating some particular agricultural aspect or operation with one or more elements of the local climate.
definition: Indice reliant un aspect particulier ou une certaine opération en agriculture a un ou plusieurs éléments du climat local. @fr

10-minute interval
type: Class
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: unitType
        has value: unitMinute
      intersection of: Restriction
        on property: numericDuration
        has value: 10.0
label: Intervalle de 10 minutes @fr

12-hours interval
type: Class
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: unitType
        has value: unitHour
      intersection of: Restriction
        on property: numericDuration
        has value: 12.0
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: hours
        has value: 12.0
label: Intervalle de 12 heures @fr

18-hours interval
type: Class
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: unitType
        has value: unitHour
      intersection of: Restriction
        on property: numericDuration
        has value: 18.0
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: hours
        has value: 18.0
label: Intervalle de 18 heures @fr

24-hours interval
type: Class
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: unitType
        has value: unitHour
      intersection of: Restriction
        on property: numericDuration
        has value: 24.0
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: hours
        has value: 24.0
label: Intervalle de 24 heures @fr

3-hours interval
type: Class
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: unitType
        has value: unitHour
      intersection of: Restriction
        on property: numericDuration
        has value: 3.0
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: hours
        has value: 3.0
label: Intervalle de 3 heures @fr

6-hours interval
type: Class
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: unitType
        has value: unitHour
      intersection of: Restriction
        on property: numericDuration
        has value: 6.0
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: hours
        has value: 6.0
label: Intervalle de 6 heures @fr

9-hours interval
type: Class
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: unitType
        has value: unitHour
      intersection of: Restriction
        on property: numericDuration
        has value: 9.0
equivalent class: Class
  intersection of: Interval
  intersection of: Restriction
    on property: hasDuration
    all values from: Class
      intersection of: Duration
      intersection of: Restriction
        on property: hours
        has value: 9.0
label: Intervalle de 9 heures @fr

Meteorological Feature
type: Class
equivalent class: Class
  intersection of: FeatureOfInterest
  intersection of: Restriction
    on property: hasProperty
    all values from: Weather Property
  intersection of: Restriction
    on property: hasProperty
    min qualified cardinality: 1
    on class: Weather Property
comment: For each Meteorological feature such as wind or precipitations, at least one property (precipitation amount) need to be defined
definition: The meteorological phenomenon whose property is being measured or observed in the course of an observation.

Meteorological Observation
type: Class
equivalent class: Class
  intersection of: Observation
  intersection of: Restriction
    on property: hasFeatureOfInterest
    all values from: Meteorological Feature
  intersection of: Restriction
    on property: observedProperty
    all values from: Weather Property
  intersection of: Restriction
    on property: hasFeatureOfInterest
    min qualified cardinality: 1
    on class: Meteorological Feature
  intersection of: Restriction
    on property: observedProperty
    min qualified cardinality: 1
    on class: Weather Property
comment: A meterological observation is an observation which is linked to exactly one weather property and one meteorological feature.
label: Observation météorologique @fr

Weather Property
type: Class
equivalent class: Class
  intersection of: ObservableProperty
  intersection of: Restriction
    on property: isPropertyOf
    all values from: Meteorological Feature
  intersection of: Restriction
    on property: isPropertyOf
    min qualified cardinality: 1
    on class: Meteorological Feature

Weather Station
type: Class
subclass of: Feature
subclass of: Platform
comment: Weather Station
label: Station Météorologique @fr

agricultural meteorological station
type: Class
subclass of: Weather Station
label: station de meteorologie agricole @fr
definition: A station that provides meteorological data for agricultural and/or biological purposes and makes other meteorological observations under the programmes of Agrometeorological Research Centres and other relevant organizations.
definition: Station qui fournit des données météorologiques à des fins agricoles et/ou biologiques et qui effectue d'autres observations météorologiques au titre des programmes des centres de recherche en météorologie agricole et d'autres organisations intéressées. @fr

Maximum air temperature
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept

Mean daily maximum temperature for a month
type: NamedIndividual
type: Agroclimatic index
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
source: https://library.wmo.int/doc_num.php
broader: Maximum air temperature
definition: Mean of the daily maximum temperatures observed during a specific calendar month, either in a specific year or over a specific period of years.
definition: Moyenne des températures maximales quotidiennes observées au cours d'un mois déterminé, pendant une année déterminée ou un nombre d'années déterminé. @fr
preferred label: Temperature maximale quotidienne moyenne mensuelle @fr

Mean daily minimum temperature for a month
type: NamedIndividual
type: Agroclimatic index
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
source: https://library.wmo.int/doc_num.php
label: Température minimale quotidienne moyenne mensuelle @fr
broader: Minimum air temperature
definition: Mean of the daily minimum temperatures observed during a specific calendar month, either in a specific year or over a specific period of years.
definition: Moyenne des températures minimales quotidiennes observées au cours d'un mois déterminé, pendant une année déterminée ou un nombre d'années déterminé.

Temperature range
type: NamedIndividual
type: Agroclimatic index
type: Concept
alternative label: Amplitude thermique @fr
broader: Air temperature
definition: Difference between the maximum and minimum temperatures, or betweem the highest and lowest mean temperatures, during a specific time interval.
definition: Différence entre la température et minimale, ou entre la température moyenne la plus élevée et la plus basse, au cours d'un intervalle de temps déterminé @fr
preferred label: amplitude la temperature @fr

Absolute annual range of temperature
type: NamedIndividual
type: Agroclimatic index
type: QuantityKind
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
source: https://library.wmo.int/doc_num.php
broader: Temperature range
definition: Difference between the highest and lowest temperatures during a specific year
definition: Différence entre la température la plus elevée et la plus basse au cours d'une année determinée @fr
preferred label: Amplitude annuelle absolue de la température @fr
related: Minimum air temperature

Daily range of temperature
type: NamedIndividual
type: Agroclimatic index
type: Concept
alternative label: Amplitude thermique journalière @fr
alternative label: Daily thermal amplitude
broader: Temperature range
definition: Amplitude de la température au cours d'un intervalle continu de temps de 24 heures @fr
definition: Temperature range during a continuous time interval of 24 hours.
preferred label: Amplitude quotidienne de la température @fr
related: maxDailyTemperature

Freezing index
type: NamedIndividual
type: Agroclimatic index
type: Concept
source: https://library.wmo.int/doc_num.php
definition: A measure of the combined duration and magnitude of below freezing temperatures occurring during a specific freezing season and calculated by accumulating the number of degree-days below 0°C and subtracting from that total the number of degree-days above 0°C over the same period.
definition: Mesure combinée durée-amplitude des températures inférieures a C durant une saison de gel déterminée. L'indice est calculé en additionnant le nombre de degrés-jours inférieurs a 0°C et en soustrayant du total le nombre de degrés-jours supérieurs a 0°C au cours de la meme période. @fr
preferred label: Indice de gel @fr

Frost day
type: NamedIndividual
type: Agroclimatic index
type: Concept
source: https://library.wmo.int/doc_num.php
alternative label: jour de gelée @fr
broader: Freezing index
definition: Day during which the minimum temperature is less than 0°C (or by convention is equal or less than 0°C).
definition: Jour au cours duquel la température minimale est inférieure a 0°C (ou, par convention, inférieure ou égale a 0°C) @fr
preferred label: Jour de gel @fr

Number of frost days per phase
type: NamedIndividual
type: Agroclimatic index
type: Concept
alternative label: Nombre de jours de gelée @fr
broader: Frost day
definition: Nombre de jours au cours duquel la température minimale est inférieure 0°C during a period of time @fr
definition: Number of days during which the minimum temperature is less than 0°C during a period of time
preferred label: Nombre de jours de gel par phase @fr

Growing degree-day
type: NamedIndividual
type: Agroclimatic index
type: Concept
source: https://library.wmo.int/doc_num.php
broader: Air temperature
definition: Algebraic difference, expressed in degrees, between the mean temperature of a particular day and a reference temperature. For a specific period (months, years), the number of degree-days is the algebraic sum of the degreedays for all days in the period.
definition: Différence algébrique, exprimée en degrés, entre la température moyenne d'un jour donné et une température de reference. Pour une période donnée (mois, années), le nombre de degrés-jours est la somme algébrique des degrés-jours de chacun des jours de la période. @fr
preferred label: Degré-jour de croissance @fr

Growing Season
type: NamedIndividual
type: Agroclimatic index
type: Concept
source: https://library.wmo.int/doc_num.php
alternative label: Saison de Végétation @fr
alternative label: Vegetation Season
definition: Saison pendant laquelle les conditions meteorologiques sont favorables a la croissance des plantes. @fr
definition: Season during which meteorological conditions are favourable to the growth of plants.
preferred label: Saison de Croissance @fr

Growing season maximal Temperature
type: NamedIndividual
type: Agroclimatic index
type: Concept
definition: Daily maximum temperature averaged over growing season.

Growing season minimum temperature
type: NamedIndividual
type: Agroclimatic index
type: Concept
broader: minDailyTemperature
definition: Daily minimum temperature averaged over growing season.

Growing season precipitation
type: NamedIndividual
type: Agroclimatic index
type: Concept
broader: Amount of precipitation
definition: Precipitation amount averaged over growing season.

Number of hot days per phase
type: NamedIndividual
type: Agroclimatic index
type: Concept
definition: Nombre de jours au cours duquel la température maximale est supérieure a 30°C during a period of time @fr
definition: Number of days during which the maximum temperature is greater than 30°C during a period of time
preferred label: Nombre de jours de forte chaleur par phase @fr

Longest dry spell
type: NamedIndividual
type: Agroclimatic index
type: Concept
broader: Amount of precipitation
definition: Maximum number of consecutive days when precipitation < 1mm.

Longest wet spell
type: NamedIndividual
type: Agroclimatic index
type: Concept
broader: Amount of precipitation
definition: Maximum number of consecutive days when precipitation > 1mm.

Daily maximum temperature
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
source: https://library.wmo.int/doc_num.php
broader: Maximum air temperature
definition: Maximum temperature during a continuous time interval of 24 hours
definition: Température maximale au cours d'un intervalle continu de temps de 24 heures @fr
preferred label: Température maximale quotidienne @fr

Absolute monthly maximum temperature
type: NamedIndividual
type: Agroclimatic index
type: QuantityKind
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
source: https://library.wmo.int/doc_num.php
broader: Maximum air temperature
definition: Différence entre la température la plus élevée et la plus basse au cours d'une année déterminée @fr
definition: The highest monthly maximum temperature observed in a specific calendar month over a specific period of years
preferred label: Température maximale absolue mensuelle @fr

Mean annual range of temperature
type: NamedIndividual
type: Agroclimatic index
type: QuantityKind
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
source: https://library.wmo.int/doc_num.php
broader: Temperature range
definition: Difference between the mean temperatures of the warmest and coldest months of the year.
definition: Différence entre la température moyenne du mois le plus chaud et celle du mois le plus froid de l'année. @fr
preferred label: Amplitude annuelle moyenne de la température @fr

Daily mean temperature
type: NamedIndividual
type: Agroclimatic index
type: QuantityKind
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
source: https://library.wmo.int/doc_num.php
broader: Air temperature
definition: Mean of the temperatures observed at 24 equidistant times in the course of a continuous interval of 24 hours (normally the mean solar day, from midnight to midnight, according to the zonal time or the mean solar time of the station); or a combination of temperatures observed at less numerous times, so arranged as to depart as little as possible from the mean defined above.
definition: Moyenne des températures observées à 24 instants équidistants au cours d'un intervalle continu de 24 heures (normalement le jour solaire moyen, de minuit à minuit, selon l'heure du fuseau ou l'heure solaire moyenne de la station); ou combinaison de températures observées à des instants moins nombreux, établie de façon à s'ecarter aussi peu que possible de la valeur de la moyenne définie ci-dessus. @fr
preferred label: Température moyenne quotidienne @fr

Mean monthly maximum temperature
type: NamedIndividual
type: Agroclimatic index
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
source: https://library.wmo.int/doc_num.php
definition: Mean of the monthly maximum temperatures observed during a specific calendar month over a specific period of years.
definition: Moyenne des températures maximales mensuelles observées au cours d'un mois determiné sur un nombre d'années determiné. @fr
preferred label: Moyenne des température maximale mensuelles @fr

Mean monthly minimum temperature
type: NamedIndividual
type: Agroclimatic index
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
source: https://library.wmo.int/doc_num.php
broader: Minimum air temperature
definition: Mean of the monthly minimum temperatures observed during a specific calendar month over a specific period of years.
definition: Moyenne des températures minimales mensuelles observées au cours d'un mois déterminé sur un nombre d'années déterminé. @fr
preferred label: Moyenne des températures minimales mensuelles @fr

Daily minimum temperature
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: DEG C
source: https://library.wmo.int/doc_num.php
broader: Minimum air temperature
definition: Minimum temperature during a continuous time interval of 24 hours
definition: Temperature minimale au cours d'un intervalle continu de temps de 24 heures @fr
preferred label: Température minimale quotidienne @fr

Absolute monthly minimum temperature
type: NamedIndividual
type: Agroclimatic index
type: QuantityKind
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
source: https://library.wmo.int/doc_num.php
broader: Minimum air temperature
definition: Température minimale la plus base observée dans un mois déterminé pendant un nombre déterminé d'années @fr
definition: The lowest monthly maximum temperature observed in a specific calendar month over a specific period of years
preferred label: température minimale absolue mensuelle @fr

Number of summer days per phase
type: NamedIndividual
type: Agroclimatic index
type: Concept
definition: Nombre de jours au cours duquel la température maximale est supérieure a 25°C during a period of time @fr
definition: Number of days during which the maximum temperature is greater than 25°C during a period of time
preferred label: Nombre de jours de chaleur par phase @fr

Air
type: NamedIndividual
type: Meteorological Feature
type: Concept
has property: Air humidity
has property: Air temperature
has property: Dew-point temperature
has property: Pressure variation
has property: sea-level pressure
has property: Air pressure at station
has property: Thermodynamic wet-bulb temperature
source: https://library.wmo.int/doc_num.php
definition: Mixture of gases which compose the Earth's atmosphere
definition: Mélange des gazs composant l'atmosphère terrestre @fr

Cloud
type: NamedIndividual
type: Meteorological Feature
type: Concept
has property: Cloud cover
source: https://library.wmo.int/doc_num.php
definition: A hydrometeor consisting of minute particles of liquid water or ice, or of both, suspended in the free air and usually not touching the ground. It may include larger particles of liquid water or ice and non-aqueous liquid or solid particles such as thise present in fumes, smoke and dust
definition: Hydrométéore consistant en une suspension dans l'atmosphère de minuscules particules d'eau liquide ou de glace, ou des deux a la fois, et ne touchant généralement pas le sol. Il peut également comporter des particules d'eau liquide ou de glace de plus grandes dimensions, et des particules solides provenant par exemple de vapeurs industrielles, de fumées ou de poussières. @fr
preferred label: Nuage @fr

Ground
type: NamedIndividual
type: Meteorological Feature
type: Concept
has property: horizontal visibility
has property: State of ground
has property: Depth of snow
alternative label: Soil
preferred label: Sol @fr

Gust
type: NamedIndividual
type: Meteorological Feature
type: Concept
has property: Gust speed over the last 10 minutes
source: https://library.wmo.int/doc_num.php
definition: Hausse brève et soudaine de la vitesse du vent par rapport à sa valeur moyenne @fr
definition: Sudden, brief increase of the wind speed over its mean value
preferred label: Rafale @fr
related: Wind

Precipitation
type: NamedIndividual
type: Meteorological Feature
type: Concept
has property: Depth of fresh snow
has property: Amount of precipitation
source: https://library.wmo.int/doc_num.php
definition: Hydrometeor consisting of a fall of an ensemble of particles. The forms of precipitation are:rain, drizzle, snow, snow grains, snow pellets, diprecipitationond dust, hail and ice pellets
definition: Hydrométéore qui se présente sous forme d'une chute de particules. Les formes de précipitation sont la pluie, la bruine, la neige, la neige en grain, la neige roulée, le poudrin de glace, la grêle, le grésil et les granules de glace. @fr
preferred label: Précipitation @fr

Snowfall
type: NamedIndividual
type: Meteorological Feature
type: Concept
source: https://library.wmo.int/doc_num.php
comment: In surface weather observations, usually expressed as centimeters or inches of snow depth per six-hourly period.
alternative label: Précipitation de neige @fr
alternative label: Snow falling
broader: Precipitation
definition: The accumulation of snow during a specified period of time.
preferred label: Chutes de neige @fr

Wind
type: NamedIndividual
type: Meteorological Feature
type: Concept
has property: Wind Average Direction (10 min)
has property: Mean wind velocity (10 min)
source: https://library.wmo.int/doc_num.php
definition: Air motion relative to the Earth's surface. Unless otherwise specified, only the horizontal componenet is considered.
definition: Mouvement de l'air par rapport à la surface terrestre. Sauf indication contraire, seule la composante horizontale est prise en considération @fr
preferred label: Vent @fr

Okta
type: NamedIndividual
type: Unit
plain text description: Fraction equal to one eight of the celestial dome, used in the coding of cloud amount
plain text description: Fraction égale à un huitième de la voûte céleste, utilisée dans le chiffrement de la nébulosité. @fr
ucum code: okta
comment: In meteorology, an okta is a unit of measurement used to describe the amount of cloud cover at any given location such as a weather station.
definition: Fraction equal to one eight of the celestial dome, used in the coding of cloud amount
definition: Fraction égale à un huitième de la voûte céleste, utilisée dans le chiffrement de la nébulosité. @fr
preferred label: Octa @fr

Air humidity
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: PERCENT
is property of: Air
has Abbreviation: u
comment: The multiplicity of humidity measures is partly due to different methods of measurement and partly because the conservative measures (mixing ratio, specific humidity) cover an extremely wide dynamic range, as a result of the rapid variation of saturation vapor pressure with temperature.
alternative label: Relative humidity
definition: Vapeur d'eau contenue dans l'air @fr
definition: some measure of the water vapor content of air.
preferred label: Humidité de l'air @fr

Air temperature
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
is property of: Air
has Abbreviation: t
definition: Température indiquée par un thermomètre exposé à l'air et l'abri du rayonnement solaire direct. @fr
definition: The temperature indicated by a thermometer exposed to the air in a place sheltered from direct solar radiation.
preferred label: Température de l'air @fr

Atmospheric pressure
type: NamedIndividual
type: Weather Property
type: Concept
applicable unit: PA
is property of: Air
source: https://library.wmo.int/doc_num.php
alternative label: Barometric pressure
definition: Pression (force par unité d'aire) exercée en vertu de son poids sur une surface donnée; elle est équivalente au poids d'une colonne d'air s'étendant au-dessus d'une surface d'air unité jusqu'à la limite supérieure de l'atmosphère. @fr
definition: Pressure (force per unit area) exerted by the atmosphere on any surface by virtue of its weight; it is equivalent to the weight of a vertical column of air extending above a surface of unit area to the outer limit of the atmosphere
preferred label: Pression atmosphérique @fr

Cloud base altitude
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: http://qudt.org/vocab/unit/M
is property of: Cloud
has Abbreviation: hbas
source: https://library.wmo.int/doc_num.php
definition: Hauteur, au-dessus de la surface terrestre, de la base de la couche nuageuse la plus basse dont la nébulosite dépasse une valeur déterminée. @fr
definition: Height above the Earth's surface of the base of the lower cloud layer whose amount exceeds a specific value.
preferred label: Hauteur de la base des nuages de l'étage inférieur @fr

Dew-point temperature
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
is property of: Air
has Abbreviation: td
source: https://library.wmo.int/doc_num.php
alternative label: Température thermodynamique de rosée @fr
alternative label: thermodynamic dew-point temperature
definition: Temperature at which a volume of air must be cooled at constant pressure and constant moisture in order to reach saturation;any further cooling causes condensation
definition: Température à laquelle il faut refroidir un volume d'air, à pression et humidité constantes, pour qu'il devienne saturé: tout refroidissement ultérieur produit la condensation @fr
preferred label: Température de rosée @fr

Pressure variation
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: PA
is property of: Air
has Abbreviation: tend
broader: Atmospheric pressure
preferred label: Variation de Pression @fr

Depth of fresh snow
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: http://qudt.org/vocab/unit/M
is property of: Ground
has Abbreviation: ssfrai
source: https://library.wmo.int/doc_num.php
definition: Depth of fresh snow deposited on the ground during a specific period
definition: Epaisseur de la couche de neige déposée au sol au cours d'une période donnée @fr
preferred label: Hauteur de la neige fraîche @fr
related: State of ground
related: Depth of snow

Gust peak speed
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: M-PER-SEC
is property of: Gust
source: https://library.wmo.int/doc_num.php
alternative label: Gust amplitude
definition: Instantaneous wind speed at the moment when a gust speed amplitude is attained
definition: Vitesse instantanee du vent au moment ou l'amplitude de la rafale est atteinte. @fr
preferred label: Vitesse de pointe d'une rafale @fr

Gust speed over the last 10 minutes
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: M-PER-SEC
is property of: Gust
has Abbreviation: raf10
broader: Gust peak speed
definition: Maximum value of gust during the 10 last minutes.
preferred label: Rafales sur les 10 dernières minutes @fr

horizontal visibility
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: http://qudt.org/vocab/unit/M
is property of: Ground
has Abbreviation: vv
source: https://library.wmo.int/doc_num.php
definition: Distance maximale à laquelle un observateur peut voir et identifier un objet situé à proximité du plan horizontal sur lequel se trouve lui-même. @fr
definition: Maximum distance at which an observer may see and identify an object lying close to the horizontal place on which he is standing
preferred label: Visibilité horizontale @fr

Low cloud
type: NamedIndividual
type: Concept
has property: Cloud base altitude
has property: Low cloud cover
source: https://library.wmo.int/doc_num.php
alternative label: Low-level cloud
alternative label: Nuage bas @fr
broader: Cloud
definition: Cloud of the low cloud étage. Stratus and Stratocumulus are almost invariably low-level clouds
definition: Le niveau le plus bas d'un nuage ou d'une couche nuageuse @fr
preferred label: Nuage de l'étage inférieur @fr

Low cloud cover
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: Okta
has Abbreviation: nbas
broader: Cloud cover
broader: HDDAAAHH
preferred label: Nébulosité des nuages de l'étage inférieur @fr

Daily sunshine duration
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: HR
definition: The sunshine duration, or heliophany in hours, represents the total time during which direct sunlight falls on a location between sunrise and sunset.
alternative label: Bright sunshine hours
alternative label: Heures d'ensoleillement @fr
preferred label: Durée d'ensoleillement journalier @fr

Minimum air temperature
type: NamedIndividual
type: Weather Property
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
is property of: Air
source: https://library.wmo.int/doc_num.php
broader: Air temperature
definition: Lowest temperature attained during a specific time interval.
definition: Température la plus basse atteinte pendant un intervalle de temps déterminé @fr
preferred label: température minimale @fr

Amount of precipitation
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: MilliM
is property of: Precipitation
has Abbreviation: rrN
definition: Depth to which the precipitation would cover, in a liquid form, a horizontal projection of the Eath's surface, in the absence of infiltration, runoff or evaporation, and id all solid. precipitation was melted. It is usually expressed in millimetres, equivalent to litres per square metre.
definition: Profondeur à laquelle les précipitations couvriraient, sous forme liquide, une projection horizontale de la surface du sol, en l'absence d'infiltration, de ruissellement ou d'évaporation, et si toutes les précipitations solides étaient fondues. Précipitations solides ont été fondues. Elle est généralement exprimée en millimètres, ce qui équivaut à des litres par mètre carré. @fr
preferred label: Hauteur de Précipitation @fr

Pressure tendency
type: NamedIndividual
type: Weather Property
type: Concept
applicable WM ocode: http://ns.inria.fr/meteo/vocab/weatherpropery/wmocode/0200
is property of: Air
has Abbreviation: cod_tend
source: https://library.wmo.int/doc_num.php
alternative label: Tendance barométrique
alternative label: barometric tendency @fr
broader: Atmospheric pressure
definition: Le caractère et l'ampleur du changement de la pression atmosphérique pendant une période de temps déterminée, souvent une période de trois heures précédant une observation, mais de 24h dans les régions tropicales. @fr
definition: The character and amount of atmospheric pressure change during a specified period of time, often a three-hour period preceding an observation(over 24 hours in tropical regions).
preferred label: Tendance de la pression @fr

sea-level pressure
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: PA
is property of: Air
has Abbreviation: pmer
source: https://library.wmo.int/doc_num.php
alternative label: pression au niveau mer @fr
broader: Atmospheric pressure
definition: Atomospheric pressure at mean sea level calculated from the observed station pressure
definition: Pression atmosphérique au niveau moyen de la mer calculée d'après la pression mesurée à la station @fr
preferred label: pression réduite au niveau de mer @fr

Minimum Soil Temperature over the last 12 hours
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
is property of: Ground
has Abbreviation: tminsol
broader: Soil temperature
preferred label: Température minimale du sol sur 12 heures @fr

Soil temperature
type: NamedIndividual
type: Weather Property
type: Concept
applicable unit: DEG C
applicable unit: http://qudt.org/vocab/unit/K
is property of: Ground
source: https://library.wmo.int/doc_num.php
definition: Temperature observed at different depths in the soil
definition: Température observée à différentes profondeurs dans le sol @fr
preferred label: Température du sol @fr

State of ground
type: NamedIndividual
type: Weather Property
type: Concept
applicable WM ocode: http://ns.inria.fr/meteo/vocab/weatherpropery/wmocode/0901
is property of: Ground
has Abbreviation: etat_sol
comment: 0 - ground dry (no cracks or appreciable amounts of dust/loose sand) 1 - ground moist 2 - ground wet (standing water in small or large pools on surface) 3 - flooded 4 - ground frozen 5 - glaze on ground 6 - loose dry dust or sand not covering ground completely 7 - thin cover of loose dry dust or sand covering ground completely 8 - mod/thick cover of loose dry dust/sand covering ground completely 9 - extremely dry with cracks
definition: State of ground without snow or measurable ice cover.
preferred label: Etat du sol @fr
related: Depth of fresh snow
related: Depth of snow

Air pressure at station
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: PA
is property of: Air
has Abbreviation: pres
source: https://library.wmo.int/doc_num.php
broader: Atmospheric pressure
definition: La pression atmosphérique calculée pour le niveau d'élévation de la station. @fr
definition: The atmospheric pressure computed for the level of the station elevation.
preferred label: Pression Station @fr

Cloud cover
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: PERCENT
is property of: Cloud
has Abbreviation: n
source: https://library.wmo.int/doc_num.php
alternative label: Cloud amount
alternative label: Couverture nuageuse @fr
definition: Fraction de la voûte céléste cachée par l'ensemble des nuages visibles. @fr
definition: Fraction of the celestial dome hidden by all the visible clouds.
preferred label: Nébulosité totale @fr

Depth of snow
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: http://qudt.org/vocab/unit/M
is property of: Ground
has Abbreviation: ht_neige
alternative label: Hauteur totale de la couche de neige, glace, autre au sol @fr
definition: Distance verticale entre la surface d'une couche de neige et le sol, la couche étant supposée uniformément répartie sur le terrain qu'elle recouvre. @fr
definition: Vertical distance between the top of surface of a snow layer and the ground beneath, the layer is assumed to be evenly spread over the ground which it covers.
preferred label: épaisseur de neige @fr
related: Depth of fresh snow
related: State of ground

Thermodynamic wet-bulb temperature
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: http://qudt.org/vocab/unit/K
is property of: Air
has Abbreviation: tw
source: https://library.wmo.int/doc_num.php
alternative label: Température du thermomètre mouillé @fr
definition: Temperature que donne un thermomètre mouillé exposé a l'air mais abrité du rayonnement solaire direct. @fr
definition: Temperature read from a wet-bulb thermometer exposed to air but sheltered from direct solar radiation.
preferred label: Température thermodynamique du thermomètre mouillé @fr

Wind Average Direction (10 min)
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: DEG
is property of: Wind
has Abbreviation: dd
broader: Wind Direction
definition: Average value of direction from which the wind blows over am interval of 10 minutes
definition: Direction du vent moyenne calculée sur un intervalle de 10 minutes @fr
preferred label: Direction moyenne du vent (10 min) @fr

Mean wind velocity (10 min)
type: NamedIndividual
type: Weather Property
type: QuantityKind
type: Concept
applicable unit: M-PER-SEC
is property of: Wind
has Abbreviation: ff
broader: Wind speed
definition: Average wind speed over the previous 10 minutes
definition: Vitesse moyenne du vent durant les 10 dernieres minutes @fr
preferred label: Vitesse moyenne du vent (10 min) @fr

Wind Direction
type: NamedIndividual
type: Weather Property
type: Concept
is property of: Wind
source: https://library.wmo.int/doc_num.php
definition: Direction d'où souffle le vent @fr
definition: Direction from which the wind blows
preferred label: Direction du vent @fr
related: Angle

Wind speed
type: NamedIndividual
type: Weather Property
type: Concept
is property of: Wind
source: https://library.wmo.int/doc_num.php
alternative label: Wind velocity
definition: Rapport de la distance parcourue par l'air au temps qu'il met à parcourir. La vitesse instantanée ou plus brièvement vitesse correspond au cas d'un intervalle de temps infiniment petit. La vitesse moyenne correspond au cas d'un intervalle de temps fini. @fr
definition: Ratio of the distance covered by the air to the time taken to cover it. The instantaneous speed or, more briefly, the speed, corresponds to the case of an infinitely small time interval. The mean speed corresponds to the case of a finite time interval.
preferred label: Vitesse du vent @fr