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 />
<strong>Drought</strong> <strong>Monitoring</strong> and Water Activities within <strong>the</strong><br />
Group on Earth Observations (GEO)<br />
A. <strong>Global</strong> <strong>Drought</strong> <strong>Monitoring</strong> <strong>Service</strong> and <strong>the</strong><br />
<strong>Global</strong> <strong>Drought</strong> Community of Practice<br />
1.1 Scope of this document<br />
This is an overview and documentation of <strong>the</strong> drought monitoring service as implemented<br />
<strong>through</strong> <strong>the</strong> Group on Earth Observations System of Systems (<strong>GEOSS</strong>) and <strong>the</strong> European<br />
<strong>Drought</strong> Observatory implementation of advanced semantic search capability <strong>through</strong> <strong>the</strong><br />
Euro<strong>GEOSS</strong> Discovery Broker tools. A key deliverable is <strong>the</strong> specification of a set of tools that<br />
will access information published <strong>through</strong> a distributed water data infrastructure. The<br />
development of <strong>the</strong> specification of <strong>the</strong>se tools includes: 1) capturing user requirements <strong>through</strong><br />
expressing <strong>the</strong> GEO Water Societal Benefit Area users within a “scenario,” that is, who might<br />
use <strong>the</strong> GEO <strong>Global</strong> <strong>Drought</strong> <strong>Monitoring</strong> <strong>Service</strong> and <strong>the</strong> types of data and functionality that<br />
<strong>the</strong>se users require or expect; 2)Design of a system architecture and <strong>the</strong> enabling framework for<br />
this at <strong>the</strong> component level; 3) integration of this system architecture within <strong>the</strong> <strong>Global</strong> Earth<br />
Observation System of System (<strong>GEOSS</strong>) architecture and its components; and 4)<br />
implementation. The development efforts of <strong>the</strong> GEO <strong>Global</strong> <strong>Drought</strong> <strong>Monitoring</strong> Portal have<br />
involved multiple parties, including <strong>the</strong> Architectural Implementation Pilot (AIP) Water and<br />
<strong>Drought</strong> Working Group, <strong>through</strong> <strong>the</strong> GEO <strong>Architecture</strong> and Data Committee level; <strong>the</strong><br />
Scientific Officer for Water of <strong>the</strong> GEO Secretariat (<strong>through</strong> <strong>the</strong> <strong>Global</strong> <strong>Drought</strong> <strong>Monitoring</strong><br />
Initiative); drought task activities of <strong>the</strong> Integrated <strong>Global</strong> Water Cycle Observations (IGWCO)<br />
Community of Practice; Princeton University Land Surface Hydrology Group, USA National<br />
Integrated <strong>Drought</strong> Information System (NIDIS), <strong>the</strong> European <strong>Drought</strong> Observatory, Italian<br />
National Research Council, <strong>the</strong> Joint Research Centre, <strong>the</strong> University College of London, <strong>the</strong><br />
Technical University of Vienna, Canadian Group on Earth Observations (CGEO), Argentina<br />
Servicio Meteorologico Nacional, Australia Bureau of Agricultural and Resource Economics and<br />
Sciences (ABARES), and <strong>the</strong> Australia Bureau of Meteorology.<br />
This report is divided into two sections to increase its accessibility. The first section<br />
explains why certain portal Information Technology (IT) capabilities (“user requirements”) were<br />
selected for implementation and deployment within <strong>the</strong> global drought monitoring service. The<br />
first section deals with development of a web-based, real-time Geographic Information System<br />
GIS server with a distributed database federation, used for hydrologic alerts in drought<br />
conditions, a prototype global drought early warning system. The second section explains why<br />
certain advanced search capabilities (including “semantic” search and discovery)—again, user<br />
requirements—were developed for implementation within <strong>the</strong> European <strong>Drought</strong> Observatory<br />
and <strong>the</strong> Euro<strong>GEOSS</strong> discovery broker. These technologies can also be eventually migrated for<br />
implementation within <strong>the</strong> <strong>Global</strong> <strong>Drought</strong> <strong>Monitoring</strong> Portal (GDMP), combining with<br />
concurrent semantic components being built within <strong>the</strong> <strong>Global</strong> Earth Observation System of<br />
System <strong>through</strong> <strong>the</strong> Data Integration and Analysis System (DIAS), <strong>the</strong> Japanese Aerospace<br />
Exploration Agency (JAXA) contribution to GEO, and <strong>the</strong> Euro<strong>GEOSS</strong> European Union<br />
contribution.<br />
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