
TL;DR
Spatial Data Infrastructures (SDIs) are essential frameworks that enable efficient discovery, access, and management of geospatial data and services, integrating technological, organizational, and policy components to support societal needs.
Contribution
This paper provides a comprehensive overview of SDIs, detailing their concepts, components, history, and key elements like geoportals, metadata, and search functions, highlighting their importance in the big data era.
Findings
SDIs facilitate geospatial data sharing and management.
Key components include geoportals, metadata, and search functions.
Various SDI implementations demonstrate practical applications.
Abstract
Spatial data infrastructure (SDI) is the infrastructure that facilitates the discovery, access, management, distribution, reuse, and preservation of digital geospatial resources. These resources may include maps, data, geospatial services, and tools. As cyberinfrastructures, SDIs are similar to other infrastructures, such as water supplies and transportation networks, since they play fundamental roles in many aspects of the society. These roles have become even more significant in today's big data age, when a large volume of geospatial data and Web services are available. From a technological perspective, SDIs mainly consist of data, hardware, and software. However, a truly functional SDI also needs the efforts of people, supports from organizations, government policies, data and software standards, and many others. In this chapter, we will present the concepts and values of SDIs, as…
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