Statistics Canada

4 datasets found
  • Open Data

    Average annual runoff in Canada, 1971 to 2013

    This product provides runoff data with each contour line corresponding to an average amount of annual runoff (in millimeters). Runoff data were derived from discharge values from hydrometric stations with natural flows. Not all years are included for every region of the country due to data...
    Organization:
    Statistics Canada
    Resource Formats:
    • SHP
    • ESRI REST
    • WMS
    • FGDB/GDB
    • HTML
    • PDF
  • Open Data

    Median values of monthly maximum turbidity in raw surface water sources by drainage region, 2013

    This product provides the median of monthly maximum turbidity values (in nephelometric turbidity units) for drinking water facilities by drainage region. Turbidity refers to the relative cloudiness of water, caused by suspended particles in water. The Survey of Drinking Water Plants collected...
    Organization:
    Statistics Canada
    Resource Formats:
    • FGDB/GDB
    • HTML
    • PDF
    • WMS
    • ESRI REST
  • Open Data

    Ratio of surface freshwater intake to water yield, by drainage region, 2013

    This product provides the ratio of surface freshwater intake to water yield for August 2013, with the exception of drainage regions 7, 8, 16, 17 and 18, which use the ratio of August intake to the long-term minimum monthly water yield. Surface freshwater intake aggregates data from the Survey of...
    Organization:
    Statistics Canada
    Resource Formats:
    • FGDB/GDB
    • HTML
    • PDF
    • WMS
    • ESRI REST
  • Open Data

    Water yield variability index, selected drainage regions, 1971 to 2013

    This product provides the variability index for selected drainage regions in Canada. Variability is measured using a coefficient of variation (CV) to compare all months over a 42-year time period and is a measure of the dispersion or variation in the monthly yield values from 1971 to 2013 (and...
    Organization:
    Statistics Canada
    Resource Formats:
    • FGDB/GDB
    • HTML
    • PDF
    • WMS
    • ESRI REST