Abstract
Aiming at the low recall rate of retrieval and the difficulty of sharing due to the non-uniform description of ocean data and their relations, a general framework of marine information system based on ocean data ontology (MDO) is proposed in this paper. The framework consists of four layers: basic data, ontology construction, support and application. The ontology construction layer is based on the basic data layer, and this paper analyzes the characteristics of marine data, and classifies semantic concepts, then establishes the spatial and semantic associations between data. The MDO can support various data analysis and provide the data required in marine applications. Finally, applying the proposed framework into the construction of a demonstration system of polar marine environment monitoring, it is proved that the introduction of MDO for polar environment data management can effectively enhance the accuracy and intelligence of data retrieval, and also provide integrated data support for polar ocean environmental assessments.