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Impervious Surface 1995

The Impervious Surface - 1995 layer contains polygon features generated from the 1995 through 1998 Digital Aerial Survey mapping line work. The use of multiple years of DAS updates best reflects the impervious layer as it was in 1995.The Impervious Surface layer features represent the various impervious surface types found within The City of Calgary. These features are classified by surface type and description based on the classifications and specifications used in the Digital Aerial Survey Program. Additional higher level general surface type classification and referencing to the Alberta Township System (ATS) has been applied to each impervious surface layer feature. To learn more about other DAS products available, visit <a href="">Digital Aerial Survey</a>.

Querying over HTTP

Splitgraph serves as an HTTP API that lets you run SQL queries directly on this data to power Web applications. For example:

curl \
    -H "Content-Type: application/json" \
{"sql": "
    SELECT *
    FROM \"calgary-ca/impervious-surface-1995-tyq3-sd7v\".\"impervious_surface_1995\"
    LIMIT 100 

See the Splitgraph documentation for more information.

  • impervious_surface_1995
Upstream Metadata