Author Description

This study was undertaken to determine annual runoff from all major basins of British Columbia from 1961 to 1993, with 1961-90 selected as the normal period. That 30-year period corresponds to the climatological standard for comparison and temperature and precipitation, and can be used to compare runoff in future years with an accepted base period. According to the study method, the province was divided into 19 geographically separate basins, and runoff was determined for each year (1961-93). Missing data were estimated by graphical correlation and comparisons with other similar gauged watersheds. Data were also corrected for major storage, diversion, and runoff originating from outside the province. This report indicates specific estimation procedures used in each basin and tabulates the estimated annual runoff for each basin by year, in cubic meters per second, plus total runoff for all basins.