About
TideX
Local tide prediction (EOT20 global grid + port-harmonic residual blend); Open-Meteo for wind, waves, sea temperature; sunrise/sunset and moon phase computed on-device.
Algorithm
EOT20 supplies the open-ocean baseline; nearby port harmonics add a residual correction — exactly matches the port on-spot, smoothly transitions to open ocean farther out. Against NOAA at Seattle, 31-day RMS = 2.5 cm.
Data sources
  • · DGFI-TUM global ocean tide model (Hart-Davis et al. 2021)
  • · Global tidal constants derived from GESLA-4 (Hart-Davis et al. 2025)
  • · Global tidal harmonic constants (NOAA + TICON-4)
  • · US coastal tide data (US federal government work)
  • · Wind, waves, SST and historical forecasts; free endpoint capped at 10k calls/day per IP
  • · OpenStreetMap (Nominatim · Overpass)
  • · Esri World Imagery (satellite tiles)
Legal & Privacy
  • · Privacy Policy
v0.1 · TideX Web