Remote Sensing Data Distribution by a Grid-Based Data Distribution System

Data distribution is one of the most important steps in the remote sensing applications; it is the bridge between consumers and providers of remote sensing data. Most of the conventional data distribution systems provide Web-based user interface and support a small quantity of data types only. It is not friendly for integrated remote sensing applications. So, a distributed and platform-independent remote sensing data distribution framework which supports multi data type, multi data source, and machine-to-machine intelligent integration is needed. Based on grid technology, a 3-layered remote sensing data distribution system named SIG-DDS is designed and implemented in this paper. In order to make the system simple, extensible and platform-independent, a well-defined extensible data accessing language based on XML is adopted as the accessing language of data sources and data brokers. The distribution system can distribute different sources, types and formats of remote sensing data in one system and make it easier to build up a distributed integrated remote sensing application