Climate extremes in the Canadian Columbia Basin

While there is considerable variation in the pattern of projected precipitation changes within the basin, one of the more consistent results among models is the largest increases in precipitation extremes occurring in the Columbia Shuswap sub-region and smallest increases occurring in the Southern East Kootenay. [...] Acknowledgements The authors are grateful to the vision of the Columbia Basin Trust and its employees in defining the project that led to the results reported on in this document, in particular Kindy Gosal, Ingrid Liepa, and Michelle Laurie. [...] On the other hand, for precipitation the range of the four GCM projections used to drive RCMs is wider than the range from the PCIC30 ensemble in some cases: on the high side in all seasons and on the low side in summer and fall. [...] The heavy line shows the median, the box shows the 25th to 75th percentile, and the whiskers represent 1.5 times the inter-quartile range (IQR) from the median. [...] The PAG noted that relationships between climate and historic area burned in the basin appear to be associated with high maximum temperatures for July/August throughout the area as well as spring maximum temperatures and June precipitation in the northern basin, with June/July/August precipitation and seasonal climatic moisture deficit playing a role in the Mid and Southern portions of the region.