Global Drought Monitoring Service through the GEOSS Architecture ...
Global Drought Monitoring Service through the GEOSS Architecture ...
Global Drought Monitoring Service through the GEOSS Architecture ...
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Architectural Implementation Pilot, Phase 3 Version: 2.0<br />
<strong>Global</strong> <strong>Drought</strong> <strong>Monitoring</strong> and European <strong>Drought</strong><br />
Observatory-Water SBA Engineering Report<br />
Date: 11/Feb/2011<br />
5. Advanced Search and Discovery Capability within <strong>the</strong> European <strong>Drought</strong><br />
Observatory<br />
A set of tools have been developed for deployment within <strong>the</strong> European <strong>Drought</strong><br />
Observatory, also serving as a contribution to GEO. These technologies provide capability to<br />
integrate water information for <strong>the</strong> Water (and drought) Societal Benefit Area, including possible<br />
deployment within <strong>the</strong> <strong>Global</strong> <strong>Drought</strong> <strong>Monitoring</strong> <strong>Service</strong>. This report captures <strong>the</strong> user<br />
requirements for who would be using this system (EDO), what data types would be required, and<br />
<strong>the</strong> type of functionality users would expect. These user requirements are embodied within a<br />
“scenario,” with <strong>the</strong> development of a system architecture providing <strong>the</strong> associated enabling<br />
framework. The GEO Architectural Implementation Pilot (AIP) develops components for <strong>the</strong><br />
<strong>GEOSS</strong> <strong>Architecture</strong> <strong>through</strong> component deployment and subsequent testing, interoperability<br />
testing, followed by Societal Benefit Area (SBA) demonstrations, i.e., demonstrations of a<br />
decision support service, such as <strong>the</strong> global drought monitoring service for <strong>the</strong> Water SBA. GEO<br />
AIP projects are run by framing a “scenario” which expresses and embodies <strong>the</strong> user<br />
requirements, such as GEO tasks.<br />
5.1 Components of <strong>the</strong> European <strong>Drought</strong> Observatory<br />
The European <strong>Drought</strong> Observatory is based upon a loosely-coupled system having as<br />
components: 1) drought indicators; 2) drought climatologies; 3) drought observing systems; 4)<br />
water usage observing system; 5) internet-based and web-based services which make<br />
interoperability and exchange of data and maps possible; 6) common formats among <strong>the</strong> system;<br />
7) user network to verify nowcasts and forecasts; and 8) hardware infrastructure and technical<br />
support staff.<br />
The European Community has identified drought, biodiversity, and forestry as targets for<br />
<strong>GEOSS</strong> activity. This AIP effort has included development of <strong>the</strong> Euro<strong>GEOSS</strong> search<br />
capability. As has been mentioned above (Section 2.1.1), common registration of datasets permit<br />
maps and data to be shared and exchanged among <strong>the</strong> EDO, <strong>the</strong> national drought monitors, such<br />
as MARM and SIA, and <strong>the</strong> river basin authorities, such as Confidercion Hidrografica del Ebro.<br />
In short, joint registration supports interoperability. At <strong>the</strong> same time, some of <strong>the</strong> data retrieval<br />
capabilities of EDO were time series of soil moisture, soil moisture anomalies, and Standardized<br />
Precipitation Index over different time periods. The longer <strong>the</strong> period of observation for<br />
precipitation falling upon a landscape, <strong>the</strong> longer <strong>the</strong> period of time over which water works its<br />
way <strong>through</strong> <strong>the</strong> soil and drains down into groundwater.<br />
5.1.1 European <strong>Drought</strong> Observatory user access 37<br />
The EDO map server is separated from <strong>the</strong> index page. 38<br />
37 http://edo.jrc.ec.europa.eu/php/index.php?action=view&id=36<br />
38 http://edo.jrc.ec.europa.eu/php/index.php?action=view&id=201<br />
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