GISCIENCE RESEARCH CHALLENGES FOR REALIZING DISCRETE GLOBAL GRID SYSTEMS AS A DIGITAL EARTH

Increasing data resources are available for documenting and detecting changes in environmental, ecological, and socioeconomic processes.Currently, data are distributed across a wide variety of sources (e.g.data silos) and published in a variety of formats, scales, and semantic representations.A key issue, therefore, in building systems that can rea

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