Flows, water levels and Hydro-Québec weather data — Données ouvertes Hydro-Québec

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Geolocated hydrometeorological data collected at Hydro-Québec gauging and weather stations:

River discharge
Water level
Precipitation type (rain, snow) and accumulation
Snowpack and water equivalent
Instantaneous air temperature
Instantaneous relative humidity and average relative humidity
Wind speed and direction at 2.5 m (some at 10 m)

Methods

River discharge

River discharge is calculated based on water levels measured upstream and downstream of a river.

Water level

Data on water levels are collected remotely at Hydro-Québec hydrometric stations every 15 minutes. They are then transmitted by satellite to our systems and recorded.

Precipitation

Data on precipitation are collected hourly at Hydro-Québec meteorological stations. They are then transmitted by satellite to our systems and recorded.

Data on accumulated precipitation and precipitation type are collected at Hydro-Québec meteorological stations every 15 minutes. They are then transmitted by satellite to our systems and recorded.

Snowpack and water equivalent

The gamma monitoring (GMON) sensor continuously collects data on snowpack and water equivalent.

Water equivalent data are collected at meteorological stations every six hours. They are then transmitted by satellite to our systems and recorded.

Snowpack data are collected hourly at meteorological stations. They are then transmitted by satellite to our systems and recorded.

Temperature

Temperature data are collected hourly at Hydro-Québec meteorological stations. They are then transmitted by satellite to our systems and recorded.

Humidity

Data on instantaneous relative humidity are collected hourly at meteorological stations. They are then transmitted by satellite to our systems and recorded.

Wind

Data on wind speed and direction at 2.5 m from the ground are collected at Hydro Québec meteorological stations every 15 minutes. They are then transmitted by satellite to our systems and recorded.

Units

River discharge: m³/s
Level: m
Total precipitation: mm
Snowpack: cm
Water equivalent (of snowpack): cm
Maximum temperature: °C
Minimum temperature: °C
Relative humidity: %
Average wind speed at 2.5 m: km/h
Wind direction at 2.5 m: °

Additional information

Update frequency: twice daily
Sampling frequency: hourly.
Geographic coverage: network of Hydro-Québec hydrometeorological stations
Temporal coverage: 10 days
Created: 2021-06-12
Notices and conditions of use: The information provided represents raw data. It is without a guarantee of quality and subject to change without notice.

Attachments

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Dataset schema

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CodeRegionQC

Code of the administrative region

No description available for this field.

Name (identifier)	coderegionqc
Type	text
Sample

RegionQC

name of the administrative region

No description available for this field.

Name (identifier)	regionqc
Type	text
Sample

Start date

generic date corresponding to the commissioning of the site.

No description available for this field.

Name (identifier)	date_debut
Type	date
Sample

End date

generic date corresponding to the decommissioning of the site.

No description available for this field.

Name (identifier)	date_fin
Type	date
Sample

id

unique identification code

No description available for this field.

Name (identifier)	identifiant
Type	text
Sample

name

site name

No description available for this field.

Name (identifier)	nom
Type	text
Sample

xcoord

coordinates are expressed in decimal degrees

No description available for this field.

Name (identifier)	xcoord
Type	decimal
Sample

ycoord

coordinates are expressed in decimal degrees

No description available for this field.

Name (identifier)	ycoord
Type	decimal
Sample

zcoord

altitude in meters

No description available for this field.

Name (identifier)	zcoord
Type	decimal
Sample

composition_data

date and time of the measurement, in UTC.

No description available for this field.

Name (identifier)	composition_donnees
Type	datetime
Sample

composition_nom_unite_mesure

unit of measurement

No description available for this field.

Name (identifier)	composition_nom_unite_mesure
Type	text
Sample

composition_pas_temps

measurement frequency ("Journalier” or “Horaire”)

No description available for this field.

Name (identifier)	composition_pas_temps
Type	text
Sample

composition_type_mesure

aggregation of the measure

No description available for this field.

Name (identifier)	composition_type_mesure
Type	text
Sample

composition_type_point_donnee

definition of the measure

No description available for this field.

Name (identifier)	composition_type_point_donnee
Type	text
Sample

composition_depil_nom_unite_mesure

No description available for this field.

Name (identifier)	composition_depil_nom_unite_mesure
Type	text
Sample

composition_depil_pas_temps

No description available for this field.

Name (identifier)	composition_depil_pas_temps
Type	text
Sample

composition_depil_type_mesure

No description available for this field.

Name (identifier)	composition_depil_type_mesure
Type	text
Sample

composition_depil_type_point_donnee

No description available for this field.

Name (identifier)	composition_depil_type_point_donnee
Type	text
Sample

date

No description available for this field.

Name (identifier)	date
Type	text
Sample

valeur

No description available for this field.

Name (identifier)	valeur
Type	text
Sample

JSON Schema

The following JSON object is a standardized description of your dataset's schema. More about JSON schema.

{

"title":"donnees-hydrometeorologiques",
"type":"object",
"oneOf":
[
- {
  - "$ref":"#/definitions/donnees-hydrometeorologiques"
  }
]
,
"definitions":
{
- "donnees-hydrometeorologiques":
  {
  - "properties":
    {
    "records":
    {
    "type":"array",
    "items":
    {
    "$ref":"#/definitions/donnees-hydrometeorologiques_records"
    }
    }
    }
  }
  ,
- "donnees-hydrometeorologiques_records":
  {
  - "properties":
    {
    "fields":
    {
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    "properties":
    {
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    {
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    "description":"Code of the administrative region"
    }
    ,
    "regionqc":
    {
    "type":"string",
    "title":"RegionQC",
    "description":"name of the administrative region"
    }
    ,
    "date_debut":
    {
    "type":"string",
    "format":"date",
    "title":"Start date",
    "description":"generic date corresponding to the commissioning of the site."
    }
    ,
    "date_fin":
    {
    "type":"string",
    "format":"date",
    "title":"End date",
    "description":"generic date corresponding to the decommissioning of the site."
    }
    ,
    "identifiant":
    {
    "type":"string",
    "title":"id",
    "description":"unique identification code"
    }
    ,
    "nom":
    {
    "type":"string",
    "title":"name",
    "description":"site name"
    }
    ,
    "xcoord":
    {
    "type":"number",
    "title":"xcoord",
    "description":"coordinates are expressed in decimal degrees"
    }
    ,
    "ycoord":
    {
    "type":"number",
    "title":"ycoord",
    "description":"coordinates are expressed in decimal degrees"
    }
    ,
    "zcoord":
    {
    "type":"number",
    "title":"zcoord",
    "description":"altitude in meters"
    }
    ,
    "composition_donnees":
    {
    "type":"string",
    "format":"date-time",
    "title":"composition_data",
    "description":"date and time of the measurement, in UTC."
    }
    ,
    "composition_nom_unite_mesure":
    {
    "type":"string",
    "title":"composition_nom_unite_mesure",
    "description":"unit of measurement"
    }
    ,
    "composition_pas_temps":
    {
    "type":"string",
    "title":"composition_pas_temps",
    "description":"measurement frequency ("Journalier” or “Horaire”)"
    }
    ,
    "composition_type_mesure":
    {
    "type":"string",
    "title":"composition_type_mesure",
    "description":"aggregation of the measure"
    }
    ,
    "composition_type_point_donnee":
    {
    "type":"string",
    "title":"composition_type_point_donnee",
    "description":"definition of the measure"
    }
    ,
    "composition_depil_nom_unite_mesure":
    {
    "type":"string",
    "title":"composition_depil_nom_unite_mesure",
    "description":""
    }
    ,
    "composition_depil_pas_temps":
    {
    "type":"string",
    "title":"composition_depil_pas_temps",
    "description":""
    }
    ,
    "composition_depil_type_mesure":
    {
    "type":"string",
    "title":"composition_depil_type_mesure",
    "description":""
    }
    ,
    "composition_depil_type_point_donnee":
    {
    "type":"string",
    "title":"composition_depil_type_point_donnee",
    "description":""
    }
    ,
    "date":
    {
    "type":"string",
    "title":"date",
    "description":""
    }
    ,
    "valeur":
    {
    "type":"string",
    "title":"valeur",
    "description":""
    }
    }
    }
    }
  }
}

}

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