OGC Download Service for Earth Observation Products Best Practice. Version 1.0.

Abstract

This OGC® Best Practices document specifies the interfaces, bindings, requirements, conformance classes for online download of Earth Observation products. This protocol covers several scenarios implemented by European Space Agency - ESA for providing its products to users: -- The EO Product to be downloaded is already available and can be downloaded as it is. -- The EO Product is not online available but is stored in a near online archive. -- The EO Product is advertised in a Catalogue, but it is not physically available and it has to be generated on the fly by a processing facility. -- The EO product is archived in several distributed online archives and it can be downloaded in parallel. The basic scenarios can be simply supported by Web Browsers, the most complex ones need a dedicated client (download manager) supporting Metalink and multisource download. This Best Practice document has been prepared basing on the work performed in the frame of ESA’s Next Generation Earth Observation user services and it was initially produced during the ESA HMA (Heterogeneous Missions Accessibility) initiative [OR1] and related projects.