JAXA RESTEC

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Update of OGC prototype development in JAXA for
EO satellite data applications
Shinobu Kawahito, Remote Sensing Technology
Center of Japan (RESTEC) Osamu Ochiai, Kengo
Aizawa, Satoko Miura Japan Aerospace Exploration
Agency (JAXA)
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Contents

• Overview of OGC compliant prototype development
• Status Update on Land Information Map Provision
  System
• (JAXA - Chiba Univ.)
• Outline, Key points in prototyping
• Prototype System Snapshot
• Use case of Image Comparison
• Items to be Considered Further
• Status Update on agricultural and forestal
  Monitoring System
• (JAXA Agricultural Ministry of Japan)
• - Outline
• - Software Replacement with FOSS
• - Discussion on Function Enhancement
• Future Idea

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Overview of OGC Compliant Prototype Development
Interoperable technology exploitation with
partner agencies
2006
2007
2008

• Chiba Univ.
• (Land Information)

• MAFF
• Min. of Agriculture, Forestry, and Fishery
• (Agricultural Disaster Forest Fire,
  drought, Inundation - Monitoring)

Share information of user requirement, content,
use cases, and systems.
Provide lessons learnt through prototype
development.

• Collaboration Projects in Asia which adopts
  interoperable systems

Sentinel Asia
Establishment of operational disaster application
systems (Forest Fire Monitoring, Flood
Monitoring, etc)
Digital Asia
Infrastructure promotion to share data and
information (Server deployment, service catalogue
etc)
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Status Update on Land Information Map Provision
System

• Outline of ongoing activity with Chiba Univ.

Objective
Provide maps and images on land info (e.g.
vulnerability against flood)
Ongoing Activities

• WMS system development using actual flood image
  of Ibaraki region.
• FOSS (MU MapServer) based system.
• Derive consideration items to optimize WMS to
  provide disaster images in future application
  systems

Layer
- EO images (Base map, Flood image) - Non-EO
maps (Paper-scanned land map, land classified
maps in different era) - Point data of concern
(e.g. flood observed point)

• Key points in prototyping

Key point to consider How dealt with
Locations in concern (e.g. flood point) can be quickly selected and smoothly zoomed. Add predefined point-data layer
Show information of point layer Add attribute query function of the point-data
Easiness to compare maps. Parallel map boxes which shows images of the same region
Easiness to select layer to interpret images. Pre-select image combination to compare images and set image combination layers in menu.
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Prototype System Snapshot of parallel map boxes
Both user interfaces where all layer list with a
single map box and parallel map boxes with short
guide on image comparison are developed.
Menu to select image combinations based on themes
Explanation on image combination

• Flood Location List
• Give Zoom of the point

Linked Display
Main Display
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Use Case of Image Comparison
To compare images, sometimes overlay is not user
friendly to find out locations where important
changes occurred. Comparing images with parallel
map boxes are another method.
Image combination theme Flood image and Land
type
Mostly its vulnerable valley plain where flood
occurs. Some potentially not-weak land type also
flooded. (since bank collapsed close to those
land types.
Alluvial valley plain
Lower terraces
Natural Levee
Building area
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Use Case of Image Comparison
Paddy
Built-up area
Image Combination theme Land use change
First, identify urbanized area.
Image Combination theme EO image and Land type
Alluvial Valley plain
Natural Levee
Then, see whether its happens inside weak paddy
area.
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Items to be considered further

• Further consideration items are derived to
  optimize WMS to provide disaster images in future
  application systems.
• Information Contents
• Candidates of fundamental dataset are
  considered.
• ( To compare normal state and disaster
  observed state, to understand important land
  cover change
• from the disaster reduction viewpoint. )
• - Add elevation information layer. (e.g. DEM
  contour)
• Function for Application
• For user friendly usage,
• - Enhance parallel map boxes to easy identify of
  correspondent location.
• Extend capability for user (or editor) to edit
  point and its information via web.
• (User-driven function is useful in application
  systems to customize information by user.)
• RD viewpoint
• Equip capability to connect WMS server catalogue
  to add layer dynamically
• in user I/F.
• Support (WMS-)Tiling for quick displaying.

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Status Update on Agricultural disaster Monitoring
System

• Outline of ongoing activity with MAFF

Objective
WMS/WFS prototype development to early detection
in the Asia bloc on forestry and agricultural
disaster monitoring.

• Hotspot Monitoring in Thailand
• Hotspot Monitoring in East Asia
• Vegetation Monitoring in East Asia
• Inundation Monitoring in Indochina Region.

- Transfer hotspot monitoring prototype to
operational (by MAFF) - Replacement of software
components in the previous WMS client system. -
Discussion on function enhancement to support
user friendliness.
Ongoing Activity
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Software replacement with FOSS

• Software replacement with FOSS

• Software component of the previous WMS client
  system was replaced in accordance with machine
  renewal.
• Freeware MapServer was adopted to replace COTS
  software for costless maintenance and arbitrary
  development for prototyping purposes.
• If to replace software components also of WMS
  server system,
• several good merits will be acquired. Under
  consideration.
• e.g.) - on the fly re-projection ability
• - Ability to deal with large TIFF image
  with thumbnails of reduced resolution inside
• of the same TIFF.

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Discussion on Function Enhancement

• Discussion on function enhancement to support
  user friendliness

• Vegetation Monitoring

Existing problem
To provide multiple types of value-added images
to monitor drought status, data contents and
algorism to create is also part of items to
consider to develop application system.
Expected Enhancement
- Dynamic data process of certain high-processed
images to support in seek algorithm until
finalized. (high-processed images e.b. normal
NDVI) - Add GIS statistic function to visualize
time dimensional changes per region of drought
related data. - Add multiple map boxes to help
to compare images.

• Inundation Monitoring

• - Situation is similar to Vegetation Monitoring
• In addition, elevation information is needed to
  understand inundation status
• geographically.
• -gt 3D visualization and walk-through ability
  is needed in the viewer.

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Future Idea Under Consideration
Share Functions in Repeated Needs by setting as a
independent service .
Web Application System
DEM data
WCS
DEM Provision Service (WCS)
Server A
Application System C
DEM Request
CPS
contour image request DEM server URI process
option etc
DEM data
WCS
Contour Drawing Service
return DEM
DEM Provision Service (WCS)
ICEDS
End User
return contour image
Web Application System
Image request
Image data
Overlaid Image
WMS
return image
JAXA Application System A
Image Provision Service (WMS)
JAXA Application System B
Server B
Flood monitoring, Land Info System, etc
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Thank you.