Shinobu Kawahito JAXA / RESTEC

WGISS-24 @Oberpfaffenhofen

Update on Application Prototyping

using OGC Servers

Overview of the Activities

Prototype development in cooperation with collaborating agencies

to prove the usefulness of interoperable systems to support applications.

Application Prototyping in cooperation with User Agencies

Seeking more sufficient way to present observation data into user friendly way rather than just showing EO images in Web Mapping.

Recent Target :

Land Condition Information System for Disaster Mitigation

Drought Monitoring System for Agricultural Users

How Data and Information Should Be Presented User Friendlily

( Target schedule : March 2008 )

Current Key Points on System Designing

Land Condition Information System

Earth observation images are often utilized better with comments and interpretations.

In order to allow better understanding of EO images for general users, our prototype is to do ;

Present maps and images together with descriptions (such as about data usage)

Equip write-able capability for users to input their interests and/or knowledge related to the images

Equip export capability of images, thematic maps(land vulnerability map), together with descriptions

Current Key Points on System Designing (Cont)

The system provides temporal vegetation change per polygon as a graph, to examine the presence of a problem (drought)

Drought Monitoring System

- Base Data : Time series 8 days composite data (NDVI, NDII, ..)- Reference Data : - Data set of exact past drought case, etc

Tailored MMI to allow intuitive and interactive operation

- Smooth interaction between Web Mapping view and graph view - Manipulate-able graph viewer to allow easy comparison of different data. ( realized by browser-side data visualization as a graph and a data table )

Multiple new layer types have being considered to help find anomaly

Preliminary Study on Comment Recordin Land Condition Information System

Geospatial features and comments will be more useful, if those are associated with not only lat/lon location, but also with info of which data they concern.

GIS Features associated with Images Geospatial features (Point,Line, Polygon) will be helpful to precisely indicate th

e area of interests.

In the flood case in 1986, flood region mostly corresponds to the vulnerable valley plains along rivers …<Comment>

Preliminary Study on Comment Record (cont)

EO Image1 EO Image2 Thematic Map 1

Title : Creator : Comments :

＋

links

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ｃ

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Possible Contents of Comment Record

Location : Vector data :

< Attributions (Comments) > < Geospatial data>

WMS WMS WMS

Should have fields in a single file for : Attributions, Multiple Geospatial Data, Multiple Image URIs.

Which format suits to hold all of the related information ?

Preliminary Study on Comment Record (cont)

Formats to Express Geo-spatial Features Several means exist to describe geo-spatial features together with arbitrary

descriptions.

and others ..

• GML

• GeoRSS (Simple format, Full format) : Geometry + RSS fields

• KML : Geometry + Various fields (including Feature, Overlay, Style, etc)

- KML is not a image data format, but describes geospatial data, image URI, bbox, time, how geospatial data should be rendered (in Google Earth), etc. It has a container field to hold multiple resources.

- KML and GeoRSS is becoming popular and started being supported by some Software / Web sites.

**.kml

Conclusion

Approaches to Make Prototype Systems

Stance of Web Mapping servicesThe more Mapping tools become popular, Web Mapping type application system offered by data providers may take a role to be a starter place to find designated services (monitoring information, etc), however, users tends to want more to retrieve data resources and re-use by themselves.

Keep on close work with collaborative agencies to investigate and develop prototype system for applications while focusing on establishment of methods to translate Earth observation satellite data into information useful in agricultural services and disaster services.

Thank you.