Difference between revisions of "Spatial Data Discovery and Access"
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Revision as of 11:06, 18 May 2012
Discovering geo-spatial information about some points of the ocean can be fundamental for performing data analysis on species behaviour and preferences. Furthermore it can be useful to scientists belonging to different communities who want to share their data or to have a complete vision of the environmental setup of some zones. Geospatial Data Discovery includes functionalities for retrieving environmental information associated to some points or zones, in terms of physical and chemical properties.
This document outlines the design rationale and high-level architecture of such components.
Overview
Geospatial Data Discovery provides the following facilities:
- the ability to retrieve information which is yet stored and available in the infrastructure;
- the ability to retrieve information which is stored on remote sites, collecting geospatial data;
- the ability to generate information for some points by using kriging when necessary.
The entire system is then based on the following kind of information datasets:
- Stored datasets: some physical or chemical features layer, containing information at a certain resolution, for a certain time period;
- Remote datasets: some physical or chemical features layer, stored on a remote site, to be discovered by means of extraction techniques. They will refer to certain time and resolution;
- Potential datasets: some physical or chemical features which are not stored for some points, but that can be produced by means of geospatial functions like kriging or resampling
In summary, the Geospatial Data Discovery system provide distributed, researchable or to be generated, environmental features associated to geographical points or areas.
Key Features
- uniform model and access API over environmental data
- heterogeneous external datasource investigation;
- uniform access to OGC compliant services;
- pluggable external sources
- a plug-in based architecture allows for easy attachment of new datasources;
- data consumption with OGC standard protocols
- it is possible to produce data under standard protocols like WFS, WCS, WMS etc.;
- it is possible to perform processing requests by means of standard protocols, like WPS;
Subsystems
Geospatial Data Discovery cluster within the following component:
- the Environmental Service
- a service providing a unique point of access to environmental features associated to coordinate points or to geographical areas.
