International Archives-of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B4. Istanbul 2004
Finland
Sweden
500 1.000 1.500 2.000 m
© LMV/NLS 0
Figure 4: Hydrography differences between Sweden and
Finland
6. CONCLUSION
As described in this article, there exist a lot of difficulties
concerning the harmonisation of the national topographic data
bases, especially because of different data models. A simple
and ideal solution for the definition in the Global Schema is not
always given. The European Union is aware of these problems.
The INSPIRE (Infrastructure for Spatial Information in Europe,
2003) initiative of the European Commission aims at making
available relevant, harmonised and quality geographic
information. This includes specifications for interoperable
reference data and services to fully integrate data from various
sources. The goal of the INSPIRE is a European legislation.
The EuroGeographics has responded to the requirements
formulated in INSPIRE by launching the EuroSpec project
(2004). The EuroSpec constitutes a long term process that will
develop over a period of 10 years at several stages. The scope
of the EuroSpec project is common specifications for reference
data that will ensure the interoperability of geo-located data
across boundaries, themes and resolution ranges. This scope is
much wider than the goal of the GiMoDig, which — in first
place — focuses on a mobile cartographic application.
Nevertheless the GiMoDig Global Schema might provide a
platform where the EuroSpec can further build on. It would be
desirable that on-line based access to topographic data, like the
one of the GiMoDig prototype, would evolve as real alternative,
in contrast to existing off-line solutions.
7. REFERENCES
EuroGeographics, 2003. EuroGeographics — Europe's National
Mapping Agencies Working for the European Geographic
Information Infrastructure. At http://www.eurogeographics.org/,
(accessed March 29, 2004).
EuroGlobalMap Project, 2003. 1:1 million Digital Gaia base
covering Europe. At
http://www.eurogeographics.org/eng/03 projects EGM overvi
ew.asp (accessed March 29, 2004).
EuroRegionalMap Project, 2003. Incremental Development of a
Pan-European Vectorial Database at Medium Scale. At
http://www.eurogeographics.org/eng/03 projects euroregional
map.asp (accessed March 29, 2004).
EuroSpec, 2004. European Specifications for reference data. At
http://www.eurogcographics.org/eng/03 projects eurospec act.
asp (accessed March 29, 2004).
134
GiMoDig, 2004. Geospatial Info-Mobility Service by Real-
Es =
Time Data [Integration and Generalisation.
http://gimodig.fgi.fi/deliverables.php (accessed March 25,
2004)
Illert, A. and Afflerbach, S., 2003a. Die Entwicklung eines
gemeinsamen Modells für europäische topographische
Geobasisdaten im GiMoDig-Projekt, In: Kartographische
Schriften, Band 7: Visualisierung und Erschließung von
Geodaten, Deutsche Gesellschaft für Kartographie (Hrsg.),
Hannover, 27.-28. Februar 2003, pp. 163-170.
Illert, A. and Afflerbach, S., 2003b. Report on Global Schema,
IST-2000-30090, Deliverable D5.2.1, Public EC report, 65 p.
also available at http://gimodig.fgi.fi/deliverables.php (accessed
March 25, 2004)
Jakobsson, A., 2002: User requirements for mobile topographic
maps. GiMoDig-Projekt, IST-2000-30090, 93 p., also available
at http://gimodig.fgi.fi/deliverables.php (accessed March 23,
2004)
Lehto, L., 2003. Architecture specification. GiMoDig-project,
IST-2000-30090, Deliverable D4.4.1: Final system
architecture, Public EC report, 41 p., also available at
http://gimodig.fei.fi/deliverables.php (accessed March 25,
2004)
Lehto, L. and Sarjakoski, T., 2004. Schema Translations by
XSLT for GML-Encoded Geospatial Data In Heterogeneous
Web-Service ‘Environment. International Archives of
Photogrammetry and Remote Sensing, Commission IV,
Istanbul.
Nissen, F., Hvas, A., Münster-Swendsen, J. and Brodersen L.,
2003: Small-Display Cartography.GiMoDig-Projekt, IST-2000-
30090, also available at hitp://gimodig.fgi.fi/deliverables.php
(accessed March 25, 2004)
INSPIRE-Homepage, http://www.ec-gis.org/inspire (accessed
March 25, 2004) .
Sarjakoski, T., Sarjakoski, L. T., Lehto, L., Sester, M., Illet’,
A., Nissen, F., Rystedt, R. and Ruotsalainen R., 20021
Geospatial Info-mobility Services — A Challenge fur
Interoperability and National Mapping Agencies. Proceedings
of the 5th AGILE Conference on Geographic Information
Science, Palma (Mallorca), Spain, April 25-27, 2002, pp. 585-
589.
Sarjakoski, T., Sarjakoski, L. T., Lehto, L., Sester, M., Illert,
A., Nissen, F., Rystedt, R. and Ruotsalainen R., 2002b.
Geospatial Info-mobility Services — A Challenge for National
Mapping Agencies. Proceedings of the Joint International
Symposium on "GeoSpatial Theory, Processing and
Applications" (ISPRS/Commission IV, SDH2002), Ottawa,
Canada, July 8—12, 2002, 5 p, CD-rom.
8. ACKNOWLEDGEMENTS
The Geospatial Info-Mobility Service by Real-Time Data-
Integration and Generalisation (GiMoDig) project, IST-2000-
30900, is funded by the European Union through the
Information Society Technologies (IST) programme.
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