Historical 12 month Standardized Precipitation Evapotranspiration Index across Canada

Barrie Bonsal
Persistent, large-area droughts are among Canada’s costliest natural disasters, having major impacts on sectors such as agriculture, industry, forestry, recreation, human health and society, and ecosystems. This dataset provides 50 km gridded, 12-month Standardized Precipitation Evapotranspiration Index (SPEI) values across land regions of Canada. Over southern areas of the country (south of 60°N) data are from 1900-2011 while in northern areas, the time period is shorter (approximately 1950-2011). The SPEI is a commonly used drought...
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