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Levels of data interoperability in the emerging North American Groundwater Data Network

The Canadian Groundwater Information Network (GIN) and the US National Ground-Water Monitoring Network (NGWMN) connect data from a variety of sources including states, provinces and federal agencies. Data heterogeneity is a major challenge faced by these networks, one that must be overcome
at five distinct levels: systems, syntax, structure, semantics, and pragmatics. This paper discusses approaches taken at each of the five levels to ensure interoperability between the Canadian and American networks. The result is an emerging North American Groundwater Data Network, which enables
users to access data transparently and uniformly on either side of the shared border.

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The Great Lakes - St. Lawrence Research Inventory is an
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Great Lakes - St. Lawrence Region.