About ODAS Metadata

ODAS metadata is the information about Ocean Data Acquisition Systems. ODAS Metadata Format Recommendation 1 (JCOMM-I) were developed by the Subgroup on Marine Climatology to describe the data from such ocean data acquisition systems as moored and drifting buoys, profile floats, offshore platform and so on. They focus on the descriptions of original features of observing data, especially the environmental features in data acquisition.
ODAS metadata format has two levels. Level 1 is the header records which describe the general information and acquisition conditions of dataset sources. Level 2 is the detailed descriptions of working conditions of various sensors. A sensor record will only exist when there is an actual sensor on the platform and it can be repeated for every sensor of a given type. ODAS metadata record structure sees Figure 1.

Figure 1. ODAS metadata record structure

At the JCOMM DMCG-I meeting in 2002, the National Marine Data and Information Service (NMDIS) of China volunteered to undertake the construction of the ODAS Metadata Management Center. NMDIS perfected the ODAS Metadata Format Recommendation 1 to formulate the ODAS Metadata Format (Version 1.1). Latest date and location of platforms were added in the header record (HR). The platform ID was added in both header record and sensor records to link platform and its sensors. Code table was extended.

 For more information about ODAS metadata see ODAS metadata format >>