SoDa: a project for the integration and exploitation of networked solar radiation databases

The project SoDa (solar data) answers the needs of industry and research for infor- mation on solar radiation parameters with a satisfactory quality. The methodology is user-driven with a large involvement of users in the project, who gauge the pro- gresses and achievements. A prototype servicehas been developed, using Internet technology, that integrates and efficiently exploits diverse networked information sources to supply value-added information. Access to data and applications has been greatly improved; efforts were made on interpolation methods and satellite data processing to achieve better quality and increase time and space coverage of the in-