Methods of three scales data integration of national typical land surface objects standardized spectral database

The implementation of associating various scale data is important to the construction of standardized spectral database of China national typical objects of land surface. This essay puts forward a solution to three scales spectral data integration, including component, canopy and pixel data. By the standardized mass spectral data processing with quality evaluation and key technology of database data link, we have achieved a platform to study various scales spectral data. It provides accessing database quickly and exploiting the application field of spectral data according to the detailed requirements, such as the query of spectral data conditioned by region or acquiring time, the exposition of characteristic spectral curves in different phases, scales and states together with corresponding parameters, etc. The architectural solution based on Oracle + COM + ASP efficiently meets the high-powered application in network environment.