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The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B4. Beijing 2008 
type 
Subtype 
Description 
Requirement 
Geometry 
Perform editing 
operation on base 
geometries 
Check procedures 
before changes are 
committed in the 
master db 
Editing 
Attributes 
Update database 
attributes thought the 
definition of data 
entry masks 
- Guided by 
database 
constraints 
(domains) 
- Following a 
predefined flow 
(UNJLC) 
Data 
replica 
tion 
Data 
management 
Create replica of 
information 
contained in the 
geodatabase 
- Synchronization 
- Replica of current 
displayed set 
KML/KMZ 
Subset extraction 
and delivery 
Single layers or 
complete maps 
Satellite 
image 
catalogue 
research 
functiona 
lities 
Disaster 
management 
Research and access 
to satellite images 
and derived 
information 
produced in case of 
past emergencies 
Early- 
warning 
Flood 
modelling 
Provide flood extent 
estimates during an 
emergency 
- Usable with 
limited input 
datasets 
- Rapid set-up and 
result delivery 
tools 
Climate 
drought 
estimate 
Drought indicators, 
automatic alert 
triggering, food 
shortages estimates 
Early 
impact 
tools 
Affected 
areas 
Delineation of 
affected areas from 
satellite 
identification of hit 
areas 
Affected 
population 
Estimates of 
population affected 
by an event 
Include simple 
socio-economic 
modelling 
Reporting 
Logistic 
assessment 
Automatic 
generation of reports 
containing maps and 
textual description 
Map 
Source 
Image 
Creation 
Logistic in 
field support 
Generation of base 
layer representation 
as background map 
- For GARMIN 
devices 
(UNJLC) 
- Vector and/or 
raster 
Logistic 
tools 
Snow cover 
Automatic detection 
of areas covered by 
snow 
- Intersection with 
logistic network 
components 
Table 11 - List of required services 
5. CONCLUSIONS 
At the actual status of the project, the production/editing 
environment is fully implemented and operational. It actually 
includes more than 10Gb of raster data and nearly 6Gb on 
vector data and stand-alone tables. Database management rules 
have been implemented in order to maintain high levels of 
efficiency in data delivery. 
After a first stage of tests performed by headquarter based users, 
the system will be now opened to be accessed by WFP 
Regional Offices, in order to test the efficiency and behaviour 
under different network connection levels. Procedures and 
workflows for data management in disconnected environments 
have also been developed, granting the possibility that new data, 
often acquired on the field in difficult situations, can be easily 
integrated in the master database. 
Catalogue services and access to metadata will be granted by 
the integration of the GeoNetwork application 
(http://geonetwork-opensource.org/), a de-facto standard at UN 
level. 
Grid computing techniques are also in investigation phase, as a 
possible solution to improve system performance and 
availability. 
In parallel, the actual level of knowledge and practice with data 
transfer tools allowed to populate the PostgreSQL/PostGIS 
geodatabase, the source for the publication/analysis 
environment. 
On that basis, beta version of a web application publishing data 
provided by a WMS server is going to be released. Other than 
traditional navigation and query tools, the application is 
characterized to be displayed as a composite layout (including 
title, legend, scale bar and logos), as it is conceived for rapid 
production of reference standard maps by WFP users. Once 
map has been customized, it is possible to generate a PDF 
format file. The application also allows the export of a single 
layer in KML format (Figure 12). 
The application has also the capability to include GeoRSS 
content, allowing the user to define an RSS provider and have 
its map updated with sudden events localization, such as 
volcano eruptions, earthquakes, floods, etc. 
• ••• - .. . • ■- ** 
P*» ¡-m 
.♦aAfcw*****K.*«M n * i 
Itliaiii's Web Mapping Service 
\ Produced by ITHACA m cmpw®txm with WPP 
Figure 12 - Screenshot of the web application 
REFERENCES 
Crocker C., 2005, The Oracle Enterprise Geodatabase (EDGB), 
Norcal URISA Chapter Meeting, http://www.fargeo.com 
(accessed 21 Apr. 2008) 
Donsez D., 2003, Les SGBDs Géographiques, teaching material 
Executive Office Of The President - Office of Management and 
Budget, 2002. “Circular No. A-16”, United States of America.