The HFR Lisbon network is a CODAR SeaSonde high frequency radar (HFR) system, composed by two HFR sites (JLSM and EPSM). The two sites are used for computing the map of total surface current vectors in the overlapping coverage area. The network is retrieving hourly surface currents and waves from both sites.

JLSM antenna emits at a central functioning frequency of 12.430 MHz and EPSM antenna emits at a central functioning frequency of 12.933 MHz.  This network provides hourly radial current data with 1.500 km grid spacing, radial coverage close to 90 km and time coverage of 75 min.

The data set made available consists of maps of total velocity of the coastal surface ocean currents in the area of Lisbon (between São Julião, in Lisbon, and Cabo Espichel, in Sesimbra), averaged over a time interval of 1 hour. Surface ocean velocities estimated by HFR are representative of the upper 0.3 – 2.5 meters of the ocean.

These maps have been retrieved since 2012 using JLSM and EPSM stations.