A Technology Explore for the Content-Based Web Query Service on MODIS Level 1B Products

Query basing on content and geographical scope can increase the MODIS 1B data retrieval efficiency significantly. This article explores how to achieve the content-based web query service. The roadmap includes preprocessing the data to generate additional and assistant information for content-based query, relational database designed for storing the information, the work flow of content-based web query, display of query results and data transfer. Relevant technical key points are also discussed in detail. This roadmap adapts to some utilization specificities of the remote sensing data, and it is a good base to estimate a content-based query of more universality.