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Le paysage sonore de la mer, mesuré.

Navigation, battage de pieux et prospection sismique emplissent la mer de sons, alors que baleines, dauphins et poissons dépendent de leur ouïe. Des hydrophones ancrés mesurent ce bruit selon des indicateurs convenus, pour que les autorités suivent la tendance, que les constructeurs prouvent qu’ils ont tenu le battage dans les limites et que la vie marine soit protégée.

Industrie

Océans

Mesures

4

Sources citées

3

1. Océans · Bruit sous-marin

   A sea full of sound

   Shipping, piling and seismic surveys fill the sea with sound. Whales, dolphins and fish depend on hearing to feed, navigate and find each other, and noise masks it. Underwater noise is now a measure of good environmental status, and offshore construction must keep piling within limits.

2. Ce qui est mesuré

   Calibrated hydrophones

   Calibrated hydrophones on moorings record the sea’s sound continuously, from ship noise in low frequency bands to the impulses of piling and the calls of marine mammals. Each hydrophone is calibrated before deployment and again on recovery, so levels are comparable across sites.

   Instruments

   Calibrated hydrophones · Recorders · Surface buoys

3. Le nœud de base

   Levels and detections at sea

   The node computes band levels and sound exposure to the agreed metrics, detects marine mammal calls and piling strikes, and sends compact summaries. The recorder keeps the full audio for recovery, so every summary can be checked against what was heard.

4. Radio et liaisons

   Summaries to shore

   Moorings near shore send band levels and detections over cellular; offshore moorings send them through a satellite terminal. Summaries reach regulators’ regional systems and construction control rooms, while full recordings come home on recovery. When one path fails, the other carries the data.

   Liaisons

   Réseau mobile public · Satellite

5. Comment ça marche

   From a whale call to a piling pause

   During offshore piling, a mooring detects porpoise clicks close to the site. The node alerts the control room with the detection and the current sound exposure. Piling pauses under the permit’s conditions until the animals move away, and the record shows every decision.

6. De la commande à l’exploitation · Commande

   Scope the duty

   The scope reads the regulator’s monitoring duties or the construction permit’s noise conditions, shipping and species, and existing moorings. Nexus Observatory Inc. returns the mooring plan, metrics, detection models and a price per mooring and per year. The scope is agreed before any site work begins.

   Planifier un déploiement

7. De la commande à l’exploitation · Relevé

   Survey positions

   Crews survey positions for depth, seabed, distance from shipping lanes and construction, trawling activity and coverage for reports. Positions follow the monitoring guidance so results compare across the region. Findings shape the kit for each site before anything is built.

8. De la commande à l’exploitation · Autorisations

   Maritime consent

   Moorings are approved by the maritime authority, marked to the rules for their area and published in notices to mariners. Fishing communities are told of positions to avoid trawl losses. Every approval is kept with the mooring record. No crew goes to site before its approvals are in place.

9. De la commande à l’exploitation · Fabrication

   Calibrate hydrophones

   Hydrophones and recorders are calibrated across the frequency bands, nodes configured with the metrics and detection models and enrolled with their identities, and the system is tested end to end before shipping. Nothing ships until the whole kit has passed its tests together.

   Ouvrir le configurateur de stations

10. De la commande à l’exploitation · Installation

    Deploy moorings

    Crews deploy each mooring from a vessel, with the hydrophone at its design depth and the surface buoy above, record positions and depths, and watch the first reports arrive before leaving. Crews follow the site safety plan throughout the work.

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

    Commission the levels

    Chaque nœud prouve son identité. Band levels are checked against a reference hydrophone or known sources, detections against expert review, and reports against the recorder’s full audio. The mooring enters service when checks pass. Acceptance is recorded with the owner before handover.

12. De la commande à l’exploitation · Exploitation

    Track the soundscape

    Regulators see band levels and their trend; construction teams see sound exposure during piling and stop when limits or marine mammals require; researchers receive detections and recordings. Every alert and action is kept on the record. Reports for owners and funders come from the same record.

13. De la commande à l’exploitation · Maintenance

    Recover, recalibrate, redeploy

    Moorings are recovered on schedule, recordings retrieved, hydrophones recalibrated and moorings redeployed. Software updates roll out remotely, and every change and calibration is kept with the mooring record. Maintenance history stays with each site for its whole life. Spares and procedures travel with the crews.

    Réserver des services sur le terrain

14. Produits de données

    For regulators and builders

    Marine regulators receive noise band levels and trends; offshore construction teams receive piling sound exposure; researchers and observers receive marine mammal detections; scientists receive calibrated recordings, each tied to mooring, depth and time. Every product can be traced back to its readings.

    Voir les produits de données

15. Preuves

    Agreed metrics, calibrated

    Monitoring follows the marine strategy directive’s noise descriptor and its monitoring guidance, terms follow the international underwater acoustics standard, and hydrophones are calibrated before and after deployment. Every level keeps its calibration and every detection its review. The record is kept for as long as the duty lasts.

    Référentiels

    Directive 2008/56/EC · Monitoring Guidance for Underwater Noise in European Seas · ISO 18405

16. Ce que vous obtenez

    Observation de l’océan et des côtes

    Bouées mouillées, flotteurs profileurs, marégraphes et houlographes, radar côtier et réception AIS, avec des flux contrôlés pour la qualité. Fourni sous forme de service géré et licence de données, pour ports, coastal agencies, offshore energy, fisheries. Scale: Coastline to basin. Service levels are written as numbers you can measure on your own dashboard.

    Parler aux ventes

17. Étape suivante

    Planifier avec nous : bruit sous-marin

    Tell us the site, the measurements and the rules it answers to. We reply with a survey proposal, a design and a scope for underwater noise. 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 contextUnderwater noise is a descriptor of good environmental status in the marine strategy framework directive, with monitoring guidance that sets frequency bands and metrics; underwater acoustic terms are standardised internationally. Offshore construction permits often require noise limits during piling and the presence of marine mammals to be checked.

Dangers

• Shipping noise masking whale and dolphin calls
• Impulsive piling noise during offshore construction
• Moorings lost to trawling
• Hydrophones fouled or flooded
• Huge recordings no one can analyse

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 mooring: a calibrated hydrophone and recorder with a surface buoy and node.

   Build a station →
2. 02

   Site

   A site: moorings around a shipping lane, a port or a construction site, reporting to shore.

   Plan a site →
3. 03

   Parc

   A regional network run to the agreed bands and metrics.

   Managed offers →
4. 04

   Réseau

   Regulators and researchers share noise levels and detections through regional data systems.

   The open protocol →

• 01Capteur acoustique
• 02Bouée ancrée
• 03Micronœud (Nano)
• 04Terminal NTN 3GPP
• 05Modem/routeur cellulaire
• 06Champ solaire

Radio et liaisons

Réseau mobile public

Moorings near shore report band levels and detections over cellular.

Radio et liaisons

Satellite

Offshore moorings report through a satellite terminal.

Edge computeThe node computes band levels and sound exposure, detects marine mammal calls and piling strikes, and sends compact summaries while the recorder keeps the full audio for recovery.

PowerThe surface buoy carries solar panels and batteries; the hydrophone recorder has its own battery for the deployment.

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 duty

   The scope reads the regulator’s monitoring duties or the construction permit’s noise conditions, shipping and species, and existing moorings. Nexus Observatory Inc. returns the mooring plan, metrics, detection models and a price per mooring and per year. The scope is agreed before any site work begins. 1

2. 02 Survey

   Survey positions

   Crews survey positions for depth, seabed, distance from shipping lanes and construction, trawling activity and coverage for reports. Positions follow the monitoring guidance so results compare across the region. Findings shape the kit for each site before anything is built. 2

3. 03 Permits

   Maritime consent

   Moorings are approved by the maritime authority, marked to the rules for their area and published in notices to mariners. Fishing communities are told of positions to avoid trawl losses. Every approval is kept with the mooring record. No crew goes to site before its approvals are in place.

4. 04 Build

   Calibrate hydrophones

   Hydrophones and recorders are calibrated across the frequency bands, nodes configured with the metrics and detection models and enrolled with their identities, and the system is tested end to end before shipping. Nothing ships until the whole kit has passed its tests together. 3

5. 05 Install

   Deploy moorings

   Crews deploy each mooring from a vessel, with the hydrophone at its design depth and the surface buoy above, record positions and depths, and watch the first reports arrive before leaving. Crews follow the site safety plan throughout the work.

6. 06 Commission

   Commission the levels

   Chaque nœud prouve son identité. Band levels are checked against a reference hydrophone or known sources, detections against expert review, and reports against the recorder’s full audio. The mooring enters service when checks pass. Acceptance is recorded with the owner before handover. 2

7. 07 Operate

   Track the soundscape

   Regulators see band levels and their trend; construction teams see sound exposure during piling and stop when limits or marine mammals require; researchers receive detections and recordings. Every alert and action is kept on the record. Reports for owners and funders come from the same record. 1

8. 08 Maintain

   Recover, recalibrate, redeploy

   Moorings are recovered on schedule, recordings retrieved, hydrophones recalibrated and moorings redeployed. Software updates roll out remotely, and every change and calibration is kept with the mooring record. Maintenance history stays with each site for its whole life. Spares and procedures travel with the crews. 3

06Produits de données et intégration

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

Produits de données

• Noise band levels and trendsMarine regulators
• Piling sound exposureOffshore construction teams
• Marine mammal detectionsResearchers and observers
• Calibrated recordingsScientists

Intégration

• Regional data systemsBand levels are submitted in the regional formats.
• Construction controlExposure and detections reach the piling control room.
• RechercheRecordings are shared with researchers.

Exchanged through netCDF-CF, MQTT, OGC SensorThings API.

07Questions des acheteurs

Avant de cadrer votre projet.

Which metrics do you report?

The bands and metrics set in the monitoring guidance.

Can it stop piling?

It alerts the control room; the decision is the operator’s under its permit.

What about trawling?

Positions are published and agreed with fishers.

Is the audio kept?

Yes, on the recorder for recovery.

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. 1Directive 2008/56/EC establishing a framework for community action in the field of marine environmental policy (Marine Strategy Framework Directive)European Union · 2008
2. 2Monitoring Guidance for Underwater Noise in European SeasEuropean Commission Joint Research Centre · 2014
3. 3ISO 18405: Underwater acoustics, terminologyInternational Organization for Standardization · 2017

09Voir aussi

Cas d’usage et solutions.

10Océans : domaines spécialisés

Les autres domaines de cette industrie.

Présentez-nous le site.

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