Virtual Archives are online archives that provide an easy access to EO data by
coupling high bandwidth, large storage space and software.
The Virtual Archive 4 provides a Cloud based service for storing and
providing access to ESA Synthetic Aperture Radar (SAR) data.
This virtual archive represents ESA contribution to the supersites initiative.
This huge amount of SAR data (today nearly ninty thousand products are hosted on Virtual Archive 4)
is accessible to science communities dealing with interferometry, landslide and change detection.
A map of all collections and data resources made available through Virtual Archive 4 is available at VA4 Collections.
archive is a Cloud solution providing Storage-as-a-Service for storing the data and is coupled with complementary services:
User authentication and authorization
Data discovery implementing simple interfaces such as
OpenSearch and results in Atom, RDF and KML format
Data access via common web protocols such as HTTP(s)
The virtual archive technical solution is based on research and development performed by Terradue and partially funded by
European Commission Framework Programme 7 in the context of the GENESI-DEC and GEOWOW projects.