Canada - LINC) to develop a SMRSS Geomatics
Information Infrastructure (GII) and Information
Management Framework (IMF)
The objectives of LINC for SMRSS are to:
- fulfil client requirements for access to a
fully integrated geomatics information
system with built-in functionality for
retrieving standard data products and
generating custom products;
- increase effectiveness and efficiencies of
geomatics information acquisition,
management and dissemination, thereby
reducing costs and duplication;
- enhance SMRSS's expertise in the field
of geomatics data integration and
dissemination and create a model for
other organizations to consider in
expanding this concept at a federal and
national level, and;
- develop an industrial capability in
geomatics infrastructure that can be
exploited commerciall in sales to
domestic and foreign organizations
requiring geomatics technology.
2. CURRENT DATA HOLDINGS
SMRSS currently maintains many geomatics data
holdings. These data holdings are available
externally as products, or are used internally to
generate products for end users. Sales of SMRSS
products are currently in the order of $7M per
year and are expected to grow.
SMRSS data holdings are maintained separately
by data custodians who have the mandate for their
creation and update. These data will continue to
be collected and maintained by the appropriate
Table 1: Geodetic Inventory Contents
custodians. LINC will make all these geomatics
data and their associated meta-data available to
clients in an integrated view.
Geodetic Data
Geodetic positional control data are managed in
an Oracle RDBMS environment as part of the
National Geodetic Information System (N GIS)
and are widely used in combination with imagery
or vector topographic data for geometric
correction. They are referenced to NADS83, use
the geographic coordinate system and are encoded
in ASCII. Privileged clients can already access
these data holding via network (DATAPAC).
LINC will provide the tools required to access the
geodetic data shown in Table 1.
National Topographic Data Base
Because of its wide use and general need for
integration with other data types, National
Topographic Data Base (NTDB) at 1:50,000 and
1:250,000 scale should be made available through
LINC on its first release. NTDB data are well
documented by an on-line catalogue and an
off-line data dictionary, are georeferenced to
NADS3 and use UTM as its coordinate system.
Satellite Imagery Meta-Data
Remote sensing imagery in raw form are stored
digitally but are not available on-line because of
the massive storage requirements. Radarsat
International (RSI) has been contracted by
SMRSS for distribution of processed or derived
products. Table 2 shows the size and growth of
the satellite image and meta-data archive.
Data Type # Units
Primary Horizontal Control Networks 8,000 points
Primary Vertical Control Networks 85,000 points
Software Products 10
Geodetic Publication / Standards 50
Active Control System Data (ACS) N/A
Global Position System (GPS) orbit data N/A
Geoid Data N/A
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