Datasets_______________________________________

In order to test the different prototypes created in the project a series of datasets have been compiled and evaluated. The quality of the datasets and their suitability for the targets of the project determine the scope and reliance on the results. In the frame of GEOSS, potential data providers, clients and, in the end, users of geospatial data must also be taken into account. Three main aspects will be considered:

The pilot cases description template and several discussions within GeoViQua generated the definitive selection criteria for the pilot case testing datasets:

Regarding the last point, the selected datasets were to be in accordance with the Critical Earth Observation priorities list, derived from the GEO Task US-09-01a. This task seeks to identify Earth Observation needs across a full spectrum of user types and communities both within each SBA and across all SBAs, including observation needs from a variety of geographic regions and significant representation from developing countries . This list includes ground, in situ , airborne, and space-based observations. The focus is on both observed and derived observation parameters as well as model products. As a result, a complex sample will be subjected to several experimentation tests related to WP7 objectives (quality parameterization, validation of search components, quality aware visualisation, and validation of the GEO Label). This variety intends to be representative of situations commonly faced by all potential users (scientists, technicians, decision makers, politicians, disseminators, teachers, students or general public) in their daily activities with geodatasets, setting an example of real cases.