Crown Registry and Geographic Base

BCACS Post-mission Data

The BC Active Control System (BCACS) network comprises permanent, continuously operating Global Positioning System (GPS) base stations linked to Victoria via telecommunication networks. It provides raw GPS observables from GPS receivers located on very precise and accurately located geodetic control monumentation.

BCACS Post-mission Data is available for the whole province by subscription or on a pay-per-download basis.   Read more >>

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BCACS Municipal Data - CRD

The BCACS^m is a system which provides GPS corrections in post-mission and real-time using the standardized Provincial coordinate system. Real-time communication is supported via a UHF radio link and/or wireless PCS link (i.e. cellular telephone). Real-time accuracy levels range from approximately 1m (using RTCM code corrections and a mapping grade GPS receiver) to centimetre level (using dual frequency survey grade receivers).

The BC ACS^m - CRD provides the capability to acquire precise control anywhere within the CRD without the requirement to have two GPS receivers or using  costly traversing to bring control in from distant monuments. All the user needs is a single GPS receiver capable of achieving the accuracy they require, and an off-the-shelf radio receiver. Subscriptions to the correction signal can be obtained from the CRD.  Read more >>

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BCACS Municipal Data - Metro Vancouver (MV)

The BCACS^m is a system which provides GPS corrections in post-mission and real-time using the standardized Provincial coordinate system. Real-time communication is supported via a UHF radio link and/or wireless PCS link (i.e. cellular telephone). Real-time accuracy levels range from approximately 1m (using RTCM code corrections and a mapping grade GPS receiver) to centimetre level (using dual frequency survey grade receivers).

This real-time GPS Service was developed as a partnership between Crown Registry and Geographic Base and the Greater Vancouver Regional District, and the municipalities comprising the MV. CRGB and the MV are working in partnership with selected private companies to build this system to support high precision real-time GPS applications within the MV. The Service supports real-time metre level positioning (DGPS) for mapping and GIS applications and positioning at the level of a few centimetres (RTK) horizontally and vertically for survey and engineering applications.  Read more >>

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Geoid Model Data

The BCACS^m is a system which provides GPS corrections in post-mission and real-time using the standardized Provincial coordinate system. Real-time communication is supported via a UHF radio link and/or wireless PCS link (i.e. cellular telephone). Real-time accuracy levels range from approximately 1m (using RTCM code corrections and a mapping grade GPS receiver) to centimetre level (using dual frequency survey grade receivers).  Read more >>

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MASCOT Geodetic Data

MASCOT is a geodetic database management and processing system based on Oracle, C, PL/SQL and FORTRAN numerical computing within a Sun Microsystem Solaris computer architecture. The MASCOT Website provides access to the final product on the database. This subscription allows the user to access the MASCOT database and download data up to the subscription limit. If you do not want a subscription to the MASCOT service, then the user can still "pay-per-download" by accessing the MASCOT website and applying for a standard account.  Read more >>

National Transformation (NTv2) Software

The National Transformation Version 2 (NTv2) software and data package provides a national standard for transforming coordinates between the NAD27 and NAD83 reference systems. Read more >>

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