Canadian Historical Daily Snow Depth Data

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source

CRD/ECCC

data type

Station data

spatial domain

Canada

spatial resolution

Point data; peak of ~2000 stations in 1980s; most data located south of ~55 N; rapid decline in station numbers after 1995

temporal coverage

variable1883-2017; Pan-Canadian coverage after ~1955

time step

Daily

data format

ASCII; NetCDF

comments

Product based on quality controlled data from a variety of sources (e.g., COCORAHS), but mostly MSC Station Data. Mainly manual ruler observations (average of several measurements in open area free of drifting snow), but with more frequent SR50-equipped autostation observations in the period since ~2000. Dataset not updated regularly. Observations are made at open, grassed sites, often at airports, that may not be representative of snow conditions in the prevailing land cover. Manual ruler observations report systematically more snow than SR50 sensors.