Global Drought Monitoring Service through the GEOSS Architecture ...

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Architectural Implementation Pilot, Phase 3 Version: 2.0 Global Drought Monitoring and European Drought Observatory-Water SBA Engineering Report Date: 11/Feb/2011 video. Note that the interface and tool has not only has a list of scientific terms but also has these terms “arranged,” so that the terms are linked to one another. This tool enables a user to go from the general term—“drought”—to an associated term “drought indicator” to specific drought indicators, such as “meteorological drought indicator,” then to “precipitation” and then to “Standard Precipitation Index.” Alternative branches are “drought” to “drought indicator” to “agricultural drought indicator” to “soil moisture” or “drought” to “drought indicator” to “hydrologic drought indicator” to “groundwater” to “terrestrial water storage change.” Datasets also have tags to the appropriate geographic area, such as “England.” 4. Global Implementation of the Drought Monitoring Service through GEOSS 4.1 Components of the System Architecture of the Global Drought Monitoring Portal The Global Drought Monitor utilizes and is designed to have a “drill-down” capability. One begins at the global (and coarsest spatial resolution) and then is directed toward higher spatial resolution regional maps. The user can follow the sequence of events by accompanying the steps while watching the “Drought—Global” video. 24 One begins with a Global World Map (a Global Drought Map, as well), accessible on the Graphical User Interface (GUI). The Global Drought Monitoring Portal is accessible from the World Wide Web. 25 The layout of the entry web page (index or home page) includes the title bar “”Beyond Drought: Global Participation for Better Planning and Response,” underneath of which are four underlying header tabs, arranged from left to right: “Current Conditions,” “Interactive Maps and Data,” “Regional Drought monitoring,” and “About.” The “Current Conditions” tab displays the “Global Drought Monitor” of the University College London global drought monitor. 26 As noted in the Disclaimer to the University College London Global Drought Monitor, the (UCL) Global Drought Monitor provides the 'overall drought picture' on a ~100km spatial scale. The maps are not designed to depict local conditions. As a consequence, there could be water shortages or crop failures within an area not designated as drought, just as there could be locations with adequate water supplies in an area designated as 'extreme' or 'exceptional' drought.” 24 http://www.ogcnetwork.net/pub/ogcnetwork/GEOSS/AIP3/pages/Demo.html 25 http://www.drought.gov/portal/server.pt/community/global_drought 26 http://drought.mssl.ucl.ac.uk/drought.html?map=%2Fwww%2Fdrought%2Fweb_pages%2Fdrou ght.map&program=%2Fcgibin%2Fmapserv&root=%2Fwww%2Fdrought2%2F&map_web_imagepath=%2Ftmp%2F&map _web_imageurl=%2Ftmp%2F&map_web_template=%2Fdrought.html Page 40
Architectural Implementation Pilot, Phase 3 Version: 2.0 Global Drought Monitoring and European Drought Observatory-Water SBA Engineering Report Date: 11/Feb/2011 The differences between the second “Interactive Maps and Data” tab and the third “Regional Drought Monitoring” tab are the display of the drought zones on the Interactive Maps and Data” tab, while the Regional Drought Monitoring” tab displays highlighted continental areas. The drought zones that are displayed on the “Interactive Maps and Data) map viewer are not necessarily the same drought zones that are displayed on the “Current Conditions” first tab. This is because the “Current Conditions” Global Drought map is largely based upon Standard Precipitation Index (SPI), while the “Interactive Maps and Data” second tab displays drought coverage for members of the Global Drought Monitor and the Global Drought Monitoring Community of Practice. The “Current Conditions” calculates drought globally, based upon API and is a top-down system. The “Interactive Maps and Data” drought displays are integrated together from national coverage in North America, derived from the regional European Community LISFLOOD model application with real time data, or derived from continental scale coverage for the African continent. The third “Regional Drought Monitoring” tab 27 displays the North American, European and western Asian, and African continents highlighted in different colors with the indent being to allow users to access regional drought portals for additional, higher resolution drought information. The remainder of the terrestrial globe is designated a common color. If one points the mouse and clicks anywhere within the Canada, USA, or Mexican spatial domain, i.e., anywhere within North America, one is redirected to the North American Drought Monitor. 28 If one points the mouse and clicks anywhere within the European Community, one is redirected to the European Drought Observatory home page. 29 If one points the mouse and clicks anywhere within the African continent, one is redirected to the Princeton University African Drought Monitor. 30 The remainders of the terrestrial continental areas share a common color, because these areas have yet to be integrated and made interoperable within the Global Drought Monitor Portal (GDMP). 4.2 Actors While the administrative user has been identified above, the main actors will be officials working in the national hydrometeorology drought monitoring services, as well as officials working in national and private relief agencies, such as the case for famine relief, countrysponsored agricultural agencies, and agricultural commodities insurers. 4.3 Capturing User Requirements for the Global Drought Monitor Portal through 27 http://www.drought.gov/portal/server.pt/community/global_drought/314/regional_drought_moni toring/1097 . 28 http://www.drought.gov/portal/server.pt/community/nadm/303 29 http://edo.jrc.ec.europa.eu/php/index.php?action=view&id=2 30 http://hydrology.princeton.edu/~justin/research/project_global_monitor/ Page 41
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