1. SevenCs the ECDIS Company
C ontent
C overage
C urrentness
C ompleteness
C onsistency
C orrectness
C ompatibility C

2. Business Activities Software Products and Development
Chart Production and Distribution
Training and Consulting

3. Business Activities Software Products and Development
EC 2007 ECDIS Kernel
compliant to IMO performance standard
compliant to IHO S-52 and S-57 standards
component of type approved ECDIS Systems
ENC Tools
for ENC production and updating
quality control
distribution
Navigational Software

4. Business Activities Chart Production and Distribution
according to S-57 standard
according to S-57 product specification
according to S-52 standard
Training and Consulting
introduction into the standards S-52, S-57
use of the object catalogue
ENC Tool training

5. Ice Object Catalogue, Draft 2.0 and Presentation
Ice in ECDIS Workshop,
St.John’s June 5th and 6th, 2000
Ice Object Catalogue, Draft 2.0
and Presentation
LtzS Kay Pahmeyer / Captain Wolf Scheuermann
Presentation by Friedhelm Moggert

6. History of ice in ECDIS :
February first workshop
June second workshop
SevenCs presents first draft
object catalogue by IDON East Corporation (Doug O’ Brian)
May third meeting
proposal is agreed upon
1996/97 Draft 2.0 (Scheuermann / Pahmeyer)

7. The two ways of representing ice in charts:
A: hatching of sea ice area
used by European (Baltic Ice Services)
Fast ice
Bergy waters
Consolidated, compacted
or very close ice
Level Ice

8. The two ways of representing ice in charts:
B: the egg code
mainly used by Canadian and American Ice Services

9. Examination of both types:
Type A - hatching of sea ice areas
total concentration is represented by different hatching patterns
additional information is displayed with extra symbols
area objects and their presentation can easily be realized with the existing standards

10. Only Type A proved to be useful for ECDIS presentations
Type B - Egg Code :
very complex, more details can be displayed
egg symbol is cartographic object (must not be used in S-57)
problem to display different attributes within the egg fields
egg does not always fit into corresponding area
huge amount of attribute combinations
(results into huge amount of different egg objects)
use of partial concentrations within one area (not compatible with S-57)
Only Type A proved to be useful for ECDIS presentations

11. Ice Object Catalogue, Draft 2.0 and Presentation
based on WMO Sea Ice Nomenclature
compliance with standard S-57 objects
compliance with standard S-52
catalogue consists of ice object classes and ice attributes
basically ice coverage types, icebergs, ice drift, ice dynamics are displayed
other information can be withdrawn from pick report (is not lost !!!)

12. Ice Object Classes plus 24 ice attributes Description Token
Iceberg ICEBRG
Ice Drift ICEDRF
Ice Dynamics ICEDYN
Floeberg ICEFLO
Ice Line ICELIN
Land Ice ICELND
Ice Openings ICEOPN
Ice Ridge ICERDG
Ice Route ICERTE
Sea Ice ICESEA
Ice Topography ICETOP
Ice Object Classes
plus 24 ice attributes
Description Token
Iceberg Shape ICEBSH
Coverage Type ICECVT
Floe Size ICEFSZ
Stage of Melt ICEMLT
Snow Cover ICESCV
Sea Ice Stage of dev. ICESOD

13. The Presentation in ECDIS
display is similar to traditional ice charts
information can be displayed together with nautical chart data
presentation as overlay or integration of ice objects in base cell
the display is generated in ECDIS application
appearance depends on attribute combinations (special lookup tables)
not all attribute values result into symbolization
attributes that are not symbolized can be withdrawn via pick report
conditional symbology procedure for ice thickness
ECDIS typical display features (night display, SCAMIN, conditional symbology)

14. Example for presentation in ECDIS
Display of different coverage types

15. Example for presentation in ECDIS
detailed base chart with ice overlay

16. Traditional Ice Chart versus ECDIS Presentation
Icebreaker Chart
Source: German Ice Service
Corresponding ECDIS presentation

17. Typical ECDIS display features
night display

18. Typical ECDIS display features
Conditional symbology depending on ICEMAX attribute

19. Typical ECDIS display features
appropriate SCAMIN values should be applied

20. Typical ECDIS display features
Pick report for additional attribute information

21. Display of point and line objects
Source: Danish Ice Service
Traditional ice chart

22. Display of point and line objects
ECDIS display

23. Alternative display of ice characteristics ?
The egg code in ECDIS

24. Updating of Ice Charts
Ice services have to create updates and new editions of ice charts
updates have to be created more frequently than for navigational charts
S-57 update mechanism can be used
update information must be provided on server computer
data distribution via satellite, cell phones, radio link
client applies updates (difference information) to last edition
alternatively distribution of new editions instead of update mechanism

25. Open tasks and questions
Ice services should evaluate this concept
does the concept meet all requirements of ice services in practice
are end users interested in ‘Ice in ECDIS’
are pilot projects useful to test the suggested concept
can the ice objects be incorporated into the S-57 object catalogue
does the concept meet ECDIS performance standards (overlay)