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Le Nord, observé à travers la nuit polaire.

Les communautés, routes, pistes d’atterrissage et pipelines du Nord reposent sur un pergélisol qui dégèle, circulent sur une glace saisonnière et vivent avec une météo que peu de stations enregistrent. Les autorités civiles ont besoin de stations qui résistent au grand froid et à la nuit polaire, transmettent par satellite et mesurent ce que le Nord transforme : température du sol, soulèvement, glace et météo.

Industrie

Résilience civile

Mesures

4

Sources citées

4

1. Résilience civile · Observation du Nord et de l’Arctique

   A changing ground

   Northern roads, runways, pipelines and homes stand on permafrost that is thawing, people travel on seasonal ice, and the weather is recorded by few stations. Civil authorities need measurements that survive deep cold and the polar night and arrive without a terrestrial network.

2. Ce qui est mesuré

   Weather, ground and ice

   Cold-rated sensors measure air temperature, wind, snow and visibility. Thermistor strings in boreholes measure permafrost temperature and the depth of the thawed layer, GNSS receivers on structures measure heave and settlement, and sensors at crossings measure river and lake ice thickness through the season.

   Instruments

   Cold-rated weather sensors · Borehole thermistors · GNSS · Ice thickness

3. Le nœud de base

   Minimal power, full record

   The node runs the station on minimal power through the polar night, checks values against cold-region limits, computes the thawed layer depth from the thermistor strings and sends compact reports when power is short, keeping the full record for the summer visit.

4. Radio et liaisons

   Satellite, twice

   Most northern stations have no terrestrial network. Broadband satellite carries their reports and remote diagnostics, and a narrowband direct-to-device terminal is a low-power second path through the polar night when every watt counts. Reports reach the authority and the WMO exchange.

   Liaisons

   Broadband satellite · Narrowband satellite

5. Comment ça marche

   From ice thickness to a road decision

   In early winter the ice sensor at a river crossing reports thickness growing day by day. When it passes the operator’s threshold for light vehicles, the winter road opens to them; heavier loads wait for thicker ice. Communities see the same data on their own screens.

6. De la commande à l’exploitation · Commande

   Scope the northern risks

   The scope reads the communities, roads, airstrips and pipelines the authority must protect, the permafrost and ice hazards, existing stations and the summer access windows. Nexus Observatory Inc. returns a station plan, power design for the polar night, satellite backhaul and a price per station and per year.

   Planifier un déploiement

7. De la commande à l’exploitation · Relevé

   Survey in the short summer

   Crews visit candidate sites in the summer window with community members: ground and permafrost, exposure, snow drifting, ice crossings, access by air, boat or road and sky view for satellite. Findings are recorded with photographs and coordinates. Findings shape the kit for each site before anything is built.

8. De la commande à l’exploitation · Autorisations

   Land, communities and wildlife

   Land use is agreed with communities and land holders, drilling of boreholes is approved under northern land and water rules, and work is timed around wildlife and harvesting seasons. Community agreements set who holds the data, and every approval is kept with the station record.

9. De la commande à l’exploitation · Fabrication

   Build for deep cold

   Kits are built from cold-rated parts, tested in a cold chamber through the temperatures of the site, and run on their polar night power for days. Thermistor strings are calibrated, nodes are enrolled with their identities, and kits are packed for air freight.

   Ouvrir le configurateur de stations

10. De la commande à l’exploitation · Installation

    Drill, raise and wire

    Crews drill boreholes and install thermistor strings, raise guyed masts, mount weather, snow and GNSS sensors, set ice sensors at crossings, install the power system and satellite terminal, and photograph every part before the window closes. Crews follow the site safety plan throughout the work.

11. De la commande à l’exploitation · Mise en service

    Commission before freeze-up

    Each node proves its identity, readings are checked with a travelling reference, reports reach the authority by satellite, and the power system is tested through a simulated dark period. The station enters service before freeze-up. Acceptance is recorded with the owner before handover.

12. De la commande à l’exploitation · Exploitation

    Watch through the winter

    The authority sees every station through the winter: weather, permafrost, ground movement and ice. Winter roads open and close on ice thickness, airstrips receive local weather, and engineers see ground heave under structures as it develops. Every alert and action is kept on the record.

13. De la commande à l’exploitation · Maintenance

    One summer visit a year

    Most maintenance happens in a single summer visit: sensors checked and swapped, fuel replenished, masts inspected and software updated. Remote updates and diagnostics carry the station through the rest of the year, and every change is kept with its record.

    Réserver des services sur le terrain

14. Produits de données

    For engineers, roads and pilots

    Engineers and planners receive permafrost and active layer records; winter road operators and communities receive ice thickness at crossings; pilots receive local weather at airstrips; asset owners receive ground heave under structures; weather services and researchers receive northern observations, each with station and time.

    Voir les produits de données

15. Preuves

    Cold-region practice

    Measurements follow the WMO guide for cold regions and the global observing manual, permafrost temperature and active layer are reported as essential climate variables under the global climate observing plan, and ice is observed under hydrological practice. Every value keeps its calibration and station record.

    Référentiels

    WMO-No. 8 · WMO-No. 1160 · GCOS-244 · WMO-No. 168

16. Ce que vous obtenez

    Programmes de réseaux nationaux d’observation

    Construction, exploitation et transfert d’une infrastructure nationale d’observation comme infrastructure publique numérique, avec transfert des compétences et des registres. Fourni sous forme de construction-exploitation-transfert et services professionnels, pour governments, development lenders financing them. Scale: National. Service levels are written as numbers you can measure on your own dashboard.

    Parler aux ventes

17. Étape suivante

    Planifier avec nous : observation du Nord et de l’Arctique

    Tell us the site, the measurements and the rules it answers to. We reply with a survey proposal, a design and a scope for northern and Arctic observing. An engineer replies with a survey proposal and a scope, and the plan grows from one site to the network you need, at your pace.

    Planifier un déploiementOuvrir le configurateur de stationsOuvrir le Studio

01Le lieu et ses dangers

Où il fonctionne, et ce qui peut mal tourner.

Operating contextNorthern observing networks are sparse, and the cryosphere is changing fast. WMO guidance covers measurements in cold regions and the global cryosphere watch, permafrost temperature and active layer are essential climate variables in the global climate observing plan, and river and lake ice is observed under hydrological practice.

Dangers

• Thawing permafrost under roads, runways and buildings
• Unsafe ice on winter roads and crossings
• Blizzards and extreme cold with few observations
• Stations that die in the polar night when solar fails
• No terrestrial backhaul for hundreds of kilometres

02Ce qu’il faut mesurer

Quoi, où, à quelle fréquence, et selon quelles règles.

Chaque mesure indique où elle est prise, à quelle fréquence, et la norme ou la réglementation publique qui la fonde. Les numéros de la colonne des sources ouvrent la source citée plus bas.

03La pile d’observation

D’un module de base à un réseau.

Les mêmes briques à chaque échelle : des instruments et un nœud de base, un site avec sa radio, une flotte exploitée comme un tout, et un réseau fédéré sur le protocole ouvert.

1. 01

   Unité de base

   A station: cold-rated weather sensors, borehole thermistors, an ice or level sensor and a GNSS receiver on a sensor hub and node.

   Build a station →
2. 02

   Site

   A site: the station, a mast that holds in blizzards, power for the polar night and a satellite terminal.

   Plan a site →
3. 03

   Parc

   Every northern station of an authority run as one fleet, with one console and one plan for the short summer visits.

   Managed offers →
4. 04

   Réseau

   Authorities, communities and research programmes share northern observations through WMO and open standards.

   The open protocol →

• 01Station météorologique automatique (classe OMM)
• 02Limnimètre
• 03Station géodésique GNSS
• 04Passerelle de capteurs et d’instruments
• 05Micronœud (Nano)
• 06Terminal plat LEO
• 07Terminal NTN 3GPP
• 08Champ solaire
• 09Pile à combustible
• 10Poteau

Radio et liaisons

Satellite

Most northern stations have no terrestrial network; broadband satellite carries their reports.

Radio et liaisons

Satellite

Narrowband satellite through a direct-to-device terminal is a low-power second path through the polar night.

Edge computeThe node runs the station on minimal power through the polar night, checks values against cold-region limits, computes active layer depth from the thermistor strings and sends compact reports when power is short.

PowerSolar with batteries carries the light season; a fuel cell or a methanol supply carries the polar night, sized for the longest dark period at the site.

04Comment ça marche

De l’instrument au produit.

Le parcours d’une observation, niveau par niveau, avec l’interface de chaque liaison et une nomenclature en dessous ; puis comment ce nœud devient un site, une flotte et des réseaux fédérés.

05De la commande à l’exploitation

Chaque étape, du premier appel à un site en service.

La même équipe et le même dossier portent le travail, du cadrage à la maintenance.

1. 01 Order

   Scope the northern risks

   The scope reads the communities, roads, airstrips and pipelines the authority must protect, the permafrost and ice hazards, existing stations and the summer access windows. Nexus Observatory Inc. returns a station plan, power design for the polar night, satellite backhaul and a price per station and per year. 3

2. 02 Survey

   Survey in the short summer

   Crews visit candidate sites in the summer window with community members: ground and permafrost, exposure, snow drifting, ice crossings, access by air, boat or road and sky view for satellite. Findings are recorded with photographs and coordinates. Findings shape the kit for each site before anything is built. 1

3. 03 Permits

   Land, communities and wildlife

   Land use is agreed with communities and land holders, drilling of boreholes is approved under northern land and water rules, and work is timed around wildlife and harvesting seasons. Community agreements set who holds the data, and every approval is kept with the station record.

4. 04 Build

   Build for deep cold

   Kits are built from cold-rated parts, tested in a cold chamber through the temperatures of the site, and run on their polar night power for days. Thermistor strings are calibrated, nodes are enrolled with their identities, and kits are packed for air freight.

5. 05 Install

   Drill, raise and wire

   Crews drill boreholes and install thermistor strings, raise guyed masts, mount weather, snow and GNSS sensors, set ice sensors at crossings, install the power system and satellite terminal, and photograph every part before the window closes. Crews follow the site safety plan throughout the work.

6. 06 Commission

   Commission before freeze-up

   Each node proves its identity, readings are checked with a travelling reference, reports reach the authority by satellite, and the power system is tested through a simulated dark period. The station enters service before freeze-up. Acceptance is recorded with the owner before handover. 2

7. 07 Operate

   Watch through the winter

   The authority sees every station through the winter: weather, permafrost, ground movement and ice. Winter roads open and close on ice thickness, airstrips receive local weather, and engineers see ground heave under structures as it develops. Every alert and action is kept on the record. 4

8. 08 Maintain

   One summer visit a year

   Most maintenance happens in a single summer visit: sensors checked and swapped, fuel replenished, masts inspected and software updated. Remote updates and diagnostics carry the station through the rest of the year, and every change is kept with its record.

06Produits de données et intégration

Ce qu’il fournit, à qui, et dans quels systèmes.

Produits de données

• Permafrost and active layer recordsEngineers and planners
• Ice thickness at crossingsWinter road operators and communities
• Local weather at airstripsPilots and air operators
• Ground heave under structuresAsset owners
• Northern observations exchangedWeather services and researchers

Intégration

• Authority systemsObservations reach the authority’s own systems in the formats it uses.
• Services météorologiquesWeather reports are shared through the WMO exchange.
• CommunautésCommunities receive their own data under the agreed governance.

Exchanged through WMO WIS 2.0, OGC SensorThings API, SDI-12.

07Questions des acheteurs

Avant de cadrer votre projet.

Will it survive the polar night?

Power is sized for the longest dark period and tested before freeze-up.

How do you reach it?

By satellite all year; crews visit once in summer.

À qui appartiennent les données ?

Ownership and sharing are set with the communities in the agreement.

Can it measure ice roads?

Yes, at crossings with ice thickness sensors.

08Ressources

Les sources de cette page.

Normes, réglementations et lignes directrices publiques, citées là où elles s’appliquent. Chacune ne s’applique que dans sa juridiction ou son champ.

1. 1WMO-No. 8: Guide to Instruments and Methods of ObservationWorld Meteorological Organization
2. 2WMO-No. 1160: Manual on the WMO Integrated Global Observing SystemWorld Meteorological Organization
3. 3GCOS-244: The 2022 GCOS Implementation PlanGlobal Climate Observing System · 2022
4. 4WMO-No. 168: Guide to Hydrological PracticesWorld Meteorological Organization

09Voir aussi

Cas d’usage et solutions.

10Résilience civile : domaines spécialisés

Les autres domaines de cette industrie.

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Planifiez un déploiement, configurez une station, modélisez-la dans le Studio ou parlez à l’équipe commerciale. Le formulaire indique qui reçoit vos coordonnées.