New edition of the Nautical Charter 26409 - 2nd Edition April 2022 “Approximation to Barra do Rio Minho (Plano do Porto de Caminha)”

Recently, with the sharing and provision of information acquired in top-hydrographic surveys carried out by Portugal and Spain in this area, the 2nd edition of the Nautical Charter 26409 “Approachments to Barra do Rio Minho (Plano do Porto de Caminha)” was published in order to ensure the standardization of cartographic representation in border areas.

It is also important to highlight the studies and studies carried out together in order to determine the vertical difference between the two altimetric references for the reduction of depth values to the Hydrographic Zero.