SIKU Sea Ice Mapping System The DMI Approach

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SIKUSea Ice Mapping SystemThe DMI Approach

• Henrik Steen Andersen
• Danish Meteorological Institute

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Workflow
DMI Ground Stations and via Internet
DMI Production software RADARSAT, ENVISAT NOAA,
DMSP data
DMI distribution system
ERDAS, import, interpretation Arc/INFO, topology
and QC
Production of Ice analysis
ArcView, Graphical environment Presentation
Production of Ice chart
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Data Interface
Simple formats can be read by ArcGIS.
Simple binary format, e.g. GeoTiff or BSQ and
(FGDC) metadata.
Production and formatting of data can be made by
in-house software
SIKU
ArcGIS will build pyramid layers (satellite
images) for fast display.
Simple ASCII format and (FGDC) metadata
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Design Considerations

• Windows as front end OS
• ArcGIS to be used for the whole analysis process
• ArcGIS is considered sufficient for display of
  satellite images
• Extensive use of build-in capabilities, e.g.
  editing
• System dimensioned for small medium ice service
  
• Two screen workstations
• At least two identical and independent seats
• Clear and simple interface towards DMI production
  environment

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Use of Catalogue build-in capabilities

• Search for data
• Preview of charts and images
• Metadata handling

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A new data model

• Use GeoDatabase concept
• One feature dataset with three feature classes
  border, class and symbol
• Template defined for each area
• Including
• Topology rules
• Subtypes
• Domains

E.g. polygons must not overlap
Predefined line and symbol types
Predefined attribute values
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How far have we got ?

• Software and hardware are purchased
• Data model is defined
• Ice chart metadata content is about to be defined
• We have to use ArcGIS and ArcView 3.x in
  combination until we have resources to convert
  Avenue scripts to VBA
• Test production will begin in Q3 2004

PCs with two 21inch screens 2.8 Ghz processor
and 2 Gbyte RAM
Full ArcGIS software