SAPO (Auntonomous Wave Forecast System) of Balearic Islands is a 72-hour forecast service that SOCIB developed in collaboration with Puertos del Estado. This system runs on SOCIB's computing center. SWAN model is executed in automatic mode twice a day, using as input wave and wind forecasts provided by Puertos del Estado. The model results show the evolution of waves characteristics (height, period and direction) from deep to shallow waters, with a resolution of 0.5 km.

Forecast map and charts

The graphic below shows the significant wave height forecast for the next 3 days in 5 different points of the Balearic sea. Three of these points match with buoy locations. Therefore it is also possible to compare buoy data against model reanalysis.

There is a Zoom option to choose the time window to visualize, (the last 3 -7 days or the last month), the data showed is a reanalysis.

By clicking over the name of the legend, the user can switch on or off all the data series. This allows the user to visualize only the serie in which is interested.

Forecast figures

Prediction horizon

00h 01h 02h 03h 04h 05h
06h 07h 08h 09h 10h 11h
12h 13h 14h 15h 16h 17h
18h 19h 20h 21h 22h 23h
24h 26h 28h 30h 32h 34h
36h 38h 40h 42h 44h 46h
48h 50h 52h 54h 56h 58h
60h 62h 64h 66h 68h 70h
72h

Data access

Model outputs are available in NetCDF format through SOCIB THREDDS catalog:

Data generated by SAPO are freely available, provided that SOCIB and Puertos del Estado are properly acknowledged (see Data Policy section)

More information

Visit the website Sistema de Predicción de Oleaje para el litoral de Illes Balears