Adjusted daily rainfall and snowfall dataset for Canada

This dataset contains adjusted daily rainfall (R) and snowfall (S) data from all Canadian stations reporting rainfall and snowfall for which we have metadata to do the adjustments. The processing includes inspection and adjustment using quality control procedures customized for producing gridded datasets, including: (1) conversion of snowfalls to their water equivalents; (2) corrections for gauge undercatch and evaporation due to wind effect, for gauge specific wetting loss, and for trace precipitation amount (same as in Mekis and Vincent, 2011); (3) treatment of flags (e.g. accumulation flags). A total of 2146 stations were processed; their record lengths vary from 3 to167 years.

Reference: Mekis, E. and L.A. Vincent, 2011: An overview of the second generation adjusted daily precipitation dataset for trend analysis in Canada. Atmosphere-Ocean, 49(2), 163-177. Xu (2012) - Homogenization of Canadian in-situ precipitation data, Final Report of Contract KM040-09-1134.