Boas of the Hydrographic Institute record strong ripple during the passage of the depressions Babet, Aline and Bernard.

Between October 17 and 23, 2023, there was an increase in the wave height, in the observation records of multiparametric buoys located in Leixões, Nazaré, Sines and Faro (see the attached graphs representing the maximum height and atmospheric pressure measured by buoys).

The maximum wavelength values observed were as follows:

. Leixões registered 15.8 meters, on the morning of October 20;

. Nazareth recorded 11.7 meters on the morning of October 20;

. Sines recorded 11.5 meters on the morning of October 20;

. Faro recorded 9.9 meters on the afternoon of October 22nd.

Currently, the Hydrographic Institute (HI) is operating within the framework of the MONIZEE system (https://www.hydrografico.pt/iproject/3), a set of coastal ocean monitoring networks off the coast of mainland Portugal, including in situ monitoring networks (multiparameter buoys, directional ondograph buoys, coastal marine stations and coastal weather stations) - which measure various oceanographic and/or meteorological parameters at the location where measurement equipment is located - and remote monitoring networks (coastal HF radar stations) - which measure oceanographic parameters (current speed and maritime agitation) of interest in adjacent maritime areas.

See MONIZEE observations on https://geomar.hydrographic. en.