Technical: Real-Time Buoy Network Integration
Nov 28, 2025•Data EngineeringTechnical•6 min read
PelagicLabs integrates real-time data from 25+ buoy stations across the North Sea and Baltic, combining multiple national networks into a unified observation layer.
Data Sources
Rijkswaterstaat (RWS) - Netherlands
- Stations: 8 wave buoys (Europlatform, K13, etc.)
- Update frequency: 10 minutes
- Parameters: Hs, Tp, direction, spectrum
Meetnet Vlaamse Banken (MVB) - Belgium
- Stations: 5 buoys (Westhinder, Bol van Heist, etc.)
- Update frequency: 10 minutes
- Parameters: Hs, Tp, direction, water level
CEFAS WaveNet - UK
- Stations: 6 North Sea buoys
- Update frequency: 1 hour
- Parameters: Hs, Tz, Tp, direction
Additional Networks
- NDBC (US): 3 North Sea stations, hourly
- DMI (Denmark): 4+ stations, 10-minute
- Frost/MET Norway: 5+ stations, hourly
- SMHI (Sweden): Multiple Baltic stations, hourly
- Open-Meteo Marine API: Full basin grid coverage, hourly
Bathymetry Data
High-resolution depth data from EMODnet Digital Terrain Model 2024:
- Resolution: 1/16 arc-minute (~115m grid)
- Coverage: All European seas including North Sea
- Features: Depth queries, profiles, Dogger Bank detection
Data Quality Control
Quality flags applied:
- Range checks (Hs: 0-25m, Tp: 1-30s)
- Temporal consistency (max Δ per hour)
- Cross-validation with nearby stations
- Spectral energy conservation checksConfidence Decay
Data freshness directly impacts prediction confidence:
C_data = min(1, data_freshness / 24h)
< 1 hour: 100% confidence weight
1-6 hours: 95% confidence weight
6-12 hours: 80% confidence weight
12-24 hours: 60% confidence weight
> 24 hours: Flagged as staleUpdate Pipeline
- Polling interval: 5 minutes (high-frequency stations)
- Processing latency: < 30 seconds from receipt
- Storage: Time-series database with 90-day retention
- Backup: Model-based gap filling for station outages