S-124 – Navigational Warnings

This dataset provides coastal and local Navigational Warnings (ANAV) in a structured, georeferenced digital format, in compliance with the S-124 specification (v. 2.0) of the S-100 standard of the International Hydrographic Organization (https://iho.int/).

This dataset is part of the High-Value Datasets (HVD) identified in accordance with Commission Implementing Regulation (EU) 2023/138 of Directive (EU) 2019/1024 on open data and the reuse of public sector information.

Citation:

Instituto Hidrográfico (2026): S-124 - Avisos à Navegação. https://doi.org/10.71683/a896657d-870a-4695-808f-2eec69be06d9

Citation proposal
(2026) . S-124 – Navigational Warnings. https://snig.dgterritorio.gov.pt/rndg/srv/api/records/a896657d-870a-4695-808f-2eec69be06d9

Simple

Date ( Publication ): 2026-02-26

Identifier: http://id.igeo.pt/cdg/a896657d-870a-4695-808f-2eec69be06d9

Credit: Instituto Hidrográfico (https://www.hidrografico.pt/)

Point of contact

Instituto Hidrográfico - Direção Técnica

Rua das Trinas, 49 Lisboa 1249-093 Portugal

Website: http://www.hidrografico.pt

Maintenance and update frequency: asNeeded As needed

Keywords

Avisos à Navegação , S-124 , NODC-PT , HVD

Access constraints: otherRestrictions Other restrictions

Use constraints: otherRestrictions Other restrictions

Other constraints: Sem restrições. Licença de utilização - CC-BY-4.0 (https://creativecommons.org/licenses/by/4.0/)

Spatial representation type: textTable Text, table

Denominator: 0

Metadata language: Portuguese Portuguese

Character set: utf8 UTF8

Topic category

Transportation

Extent type code: true

Geographic identifier: PT

Reference system identifier: EPSG / 4326

Distribution format

GML ( )

Specification

Transfer size: 15.4

OnLine resource: https://s124.hidrografico.pt/docs

Hierarchy level: dataset Dataset

Conformance result

Date ( Publication ): 2010-12-08

Explanation: Ver a especificação citada.

Pass: false

Statement: Os conjuntos de dados são gerados a partir da informação oficial disponível na plataforma AnavNet, assegurando total consistência com os avisos promulgados e atualmente em vigor, transmitidos pelo serviço de NAVTEX..