International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B7. Istanbul 2004 
  
method. But there are some points in dispute about this scene. 
To compare Fig.6 to Fig.7, the center of the Fig.6 is not 
flood-inundated area, but the same part of Fig.7 is flood area. 
Addition to that, though the region near Ang Thong is floating 
rice growing area, it seems that the report says flood damaged 
area. Then we must do ground truth to make sure these points. 
3.4 Ground truth 
The result of the ground truth, that is field study, shows 
the satellite data analysis fully corresponds to the flood report. 
4. DISASTER INFORMATION WEB SERVER 
4.1 NASA/Raytheon Synergy Project 
NASA started “NASA/Raytheon Synergy Project” with 
several universities, intended for the effort of the enhancement 
of potential satellite data application since 2000. In that 
program, it is included to make Web-based distributed server, 
“Infomarts” using Open GIS Consortium criteria and the 
recent web technologies in the disaster monitoring research 
field. 
4.2 Web Application Server 
The WWW (World Wide Web) server on the Microsoft 
windows operating system is IIS(Internet Information Server). 
It provides HTML or XML documents to the Internet. The 
“Macromedia ColdFusion” software or else a JAVA Servlet 
engine (a servlet container and a created servlet) can be used as 
the Web application server between database and the web 
server. (Of course, JavaServer Pages or else JavaBeans or Perl 
  
  
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a S : EU SE CASES 00 
Fig. 15. a part of the Global Map on a client browser 
    
scripts can also be used for this purpose) The *AutoDesk 
MapGuide Server" is a kind of a GIS map data server from 
map database to the Web server through a Map Agent like CGI 
(Common Gateway Interface). The MapGuide server provides 
GIS map data, otherwise vector type map's components, such 
as point, line and polygon features or raster type maps at an 
arbitrary map coordinate. The Web server gets the map data 
from the MapGuide server. The client can open maps on his 
web browser with an appropriate coordinate system and he can 
move it or magnify it or get the x, y coordinates and it's 
distance. He can make references of the map attributes 
database and he can renew the data using the ColdFusion. But 
he doesn't recognize it, because it works background of the 
web server. The Image WebServer is used as a swiftly showing 
tool bridged from the image database and the MapGuide server. 
The client can see the heavy image without stress through the 
Internet. The authors intend to use DCW (Digital chart of the 
world) or the global map (by International Steering Committee 
of Global Map) as the world map for this server. 
4.3 Distribution of Flood Extent Image 
After the computational mathematical morphology 
operation to SAR images, we can obtain the image of the 
potential areas of the flood extent in such region in less than 
several hours after getting Level 2.1 products of JERS-1/ SAR 
for example. It will store the database on the server, after 
converting the image file type. The client can see the images 
overlaid on a low scale map on his web browser.