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FactSheet8-ASCM-index-maps.pdf

Description

Alberta Survey Control Marker (ASCM) index maps are a graphical representation of the provincial spatial referencing system. The index maps display the location of integrated ASCMs in relation to... More ≫

Description

Alberta Survey Control Marker (ASCM) index maps are a graphical representation of the provincial spatial referencing system. The index maps display the location of integrated ASCMs in relation to various base mapping features including the Alberta Township System, hydrography, geo-administrative boundaries (Municipal and Canada lands), road networks, railways, and airports. In addition, index maps covering urban areas include street names, networks, and major facilities (schools, hospitals, etc.). Only those markers with a marker condition of GOOD or ANOMALOUS are displayed on the index maps. ASCM index maps are available from https://www.alberta.ca/geodetic-control-unit.aspx#toc-3.

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FactSheet1 - NAD83(CSRS)v7E2010.pdf

Description

The Canadian Spatial Reference System (CSRS) derivation of the North American Datum 1983 (NAD83) was first implemented for Alberta Survey Control Markers (ASCMs) in 1999. Since then, Alberta has... More ≫

Description

The Canadian Spatial Reference System (CSRS) derivation of the North American Datum 1983 (NAD83) was first implemented for Alberta Survey Control Markers (ASCMs) in 1999. Since then, Alberta has undertaken three provincial readjustments of the Alberta Survey Control network culminating in the latest derivation of NAD83(CSRS), NAD83(CSRS)v7 Epoch 2010.

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FactSheet4-Canadian_Geodetic_Vertical_Datum_of_2013_and 1928.pdf

Description

In Alberta there are two official vertical datums; The Canadian Geodetic Vertical Datum of 2013 (CGVD2013) and the Canadian Geodetic Vertical Datum of 1928 (CGVD28). This fact sheet describes both... More ≫

Description

In Alberta there are two official vertical datums; The Canadian Geodetic Vertical Datum of 2013 (CGVD2013) and the Canadian Geodetic Vertical Datum of 1928 (CGVD28). This fact sheet describes both datums and their implementation in Alberta.

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FactSheet9-Grid_Bearings_and_Astronomic_Azimuths.pdf

Description

This fact sheet discusses Grid Bearings and Astronomic Azimuths and their representation on Alberta Survey Control Marker (ASCM) ID cards.

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