Impervious Surface 2018

The impervious surface layer contains polygon features generated from Digital Aerial Survey mapping line work. The 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 classification and specifications used in the Digital Aerial Survey Program. Additional higher level general surface type classification has been applied to each impervious surface layer feature. To learn more about other DAS products available, visit <a href="https://www.calgary.ca/cs/iis/mapping-products/digital-aerial-survey.html">Digital Aerial Survey</a>.

The file for download is 985 MB.

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 https://data.splitgraph.com/sql/query/ddn \
    -H "Content-Type: application/json" \
    -d@-<<EOF
{"sql": "
    SELECT *
    FROM \"calgary-ca/impervious-surface-2018-i9mt-qafb\".\"impervious_surface_2018\"
    LIMIT 100 
"}
EOF

See the Splitgraph documentation for more information.