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“SIKU” Sea Ice Mapping System The DMI Approach

“SIKU” Sea Ice Mapping System The DMI Approach. Henrik Steen Andersen Danish Meteorological Institute. Data reception. Data processing. Product distribution. Workflow. DMI Ground Stations and via Internet. DMI Production software RADARSAT, ENVISAT NOAA, DMSP data. DMI distribution

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“SIKU” Sea Ice Mapping System The DMI Approach

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  1. “SIKU”Sea Ice Mapping SystemThe DMI Approach Henrik Steen Andersen Danish Meteorological Institute

  2. Data reception Data processing Product distribution 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

  3. Model fields Satellite Data 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

  4. 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

  5. Use of Catalogue build-in capabilities • Search for data • Preview of charts and images • Metadata handling

  6. 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

  7. 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 PC’s with two 21inch screens; 2.8 Ghz processor and 2 Gbyte RAM Full ArcGIS software

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