Global Drought Monitoring Service through the GEOSS Architecture ...

Architectural Implementation Pilot, Phase 3 Version: 2.0
Global Drought Monitoring and European Drought
Observatory-Water SBA Engineering Report
Date: 11/Feb/2011
5.1.2 Organization and layout of the EDO map server page (scenario step 01—
continued)
The upper left hand column has “European Drought Products,” underneath of which are
listed:
1. Soil Moisture;
2. Precipitation;
3. Precipitation from Archive;
4. Remote Sensing Indicators;
5. Drought-related products; and
6. Generate Graphs and Time Series
Underneath this list are three tabs:
1. Information from EuroGEOSS Drought Catalogue;
2. National/International Drought Information; and
3. Regional/Local Drought Information
Selecting Soil Moisture, number 1 from the top panel (button), causes a list to fall down, having
the selection:
1. Daily Soil Moisture;
2. Daily Soil Moisture Anomaly;
3. Forecasted Soil Moisture Anomaly;
4. Forecasted Soil Moisture Trend. Etc.
The EuroGEOSS drought catalogue box is accessible. 39
5.1.3 Selection of Drought Indices
The Drought Indices of Step 01 are Standardized Precipitation Index and Soil Moisture
Anomaly (and Soil Moisture). No hydrologic drought indicator is included, although some
remote sensing drought indicators are given. We have not included remote sensing drought
indicators here, in order to reduce the length of this report.
Step 01.1 entails “obtaining drought indices through standard services”: this step is tantamount to
the process of selecting one of the drought indicators above, such as daily soil moisture anomaly,
and sending a query to the EDO server from a local machine browser window, in order to request
a returned map showing daily conditions calculated for western Euro Asia for that day.
Returning to the EuroGEOSS drought catalog box above, the returned web page contains a given
drought vocabulary (Section 9), along with a thesaurus button underneath. Pressing the
thesaurus button prompts a new button to appear “Add term” with a dialog box popping up
“Select thesaurus from list ‘SBA_EuroGEOSS.” The GEO Societal Benefit Area groupings are
listed, including water.
NOTE: This is an important step which is not included within the original scenario. The
implications of this EuroGEOSS interface—with respect to semantics—are outlined below in
Section 6.4.
39 http://eurogeoss.unizar.es/Search/Search.html?opener=EDOMapServer
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