Metadata and Catalogs ArcticSpatialDataPilot | OGC

Chapter 7. Standards 74 adequate support e.g. cookbooks, easily deployed stacks, and a clear value proposition. The focus should be on mature OGC standards that are core OGC services: WMS, WMTS, WCS, WFS, WPS, SOS and CSW. On the encodings and information model side, the SWE standards SensorML and OM ISO 19156 with WaterML for the exchange of hydrological time-series as well as GeoSciML should be used if more specialized data such as observa- tions and measurements needs to be exchanged. The pilot may provide an ex- cellent laboratory environment to experiment with new, less mature standards in conjunction with established technology. Further on, the following standards shall be further explored as part of the pilot: • KML: KML is a file format used to display geographic data in an Earth browser such as Google Earth. • GeoPackage: GeoPackage is an open, standards-based, platform-independent, portable, self-describing, compact format for transferring geospatial infor- mation. Since a GeoPackage is a database, it supports direct use, meaning that its data can be accessed and updated in a native storage format without intermediate format translations. GeoPackages are interopera- ble across all enterprise and personal computing environments, and are particularly useful on mobile devices like cell phones and tablets in com- munications environments with limited connectivity and bandwidth. • AIXM: Aeronautical Information Exchange Model AIXM • S-57: IHO Special Publication 57 S-57 includes a description of the data format, product specification for the production of ENC data, and an up- dating profile

7.2 Metadata and Catalogs

Many catalogs and registries make use of OGC Services and their correspond- ing ISO TC211 documents. For example, the International Hydrographic Orga- nization IHO S-100 provides the data framework for the development of the next generation of ENC products, as well as other related digital products re- quired by the hydrographic, maritime and GIS communities. S-100 is based on the ISO 19100 series of geographic standards. This means that S-100 based data is compatible with data created according to the relevant ISO standards. An Chapter 7. Standards 75 S-100 online registry based on the ISO 19135 standard Procedures for Registra- tion of Geographical Information Items, has been established for the registra- tion, management and maintenance of the various dictionaries of items recog- nized under the S-100 framework. The registry contains the following principal subordinate registers: • Feature Concept Dictionary FCD register • Portrayal register • Metadata register • Product Specifications register • Data Producer Code register It is recommended that metadata follow the ISO 19115 Geographic Information - Metadata and corresponding ISO 19139 Geographic Information - Metadata XML schema implementation, or their respective profiles, CSDGM FGDC Con- tent Standard for Geospatial Metadata, the Dublin Core, or INSPIRE guide- lines and implementation rules. In addition, the emerging DCAT standard may be analyzed in more detail for its applicability in SDIs. One issue that has been reported is today’s focus of spatial data infrastruc- ture metadata standards, which are suitable for business-to-business integra- tion, but not suitable for consumption by ordinary citizens e.g. elementary school students. There is a need to develop standards which make maps and spatial data suitable for re-use by citizens of limited experience and resources. Communities such as e.g. the W3C Maps for the HTML community have the objective to develop the concepts, software and community associated to the needs of developing a standard for maps suitable for adoption by browsers, and thereby for citizens who produce and consume HTML. As such, an SDI for Arctic would serve as an excellent community-driven initiative which could help stimulate development of the standards and software of Map Markup Language and the web-mapMAP element; an idea that could be experi- mented with as part of this pilot. Chapter 7. Standards 76

7.3 Geodata Integration