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Historical/future 10km downscaled large-ensemble all-forcing global model simulation data

Description:

50 realisations of CanESM2 with a GHG scenario (RCP 8.5) were statistically downscaled onto the 300 arc second (~10km) ANUSPLIN grid (McKenney et al., 2011) using the Bias-Corrected Constructed Analogues with Quantile mapping reordering (BCCAQ) algorithm (Werner and Cannon, 2016) to produce daily climate surfaces for 1961-2100. http://www.pacificclimate.org/data/statistically-downscaled-climate-scenarios. Each day in the 300 arc second (~10 km) grid was first spatially-disaggregated using a local lapse rate upsampling algorithm (Wang et al., 2006), and the entire dataset was then bias corrected so that 1971-2000 climatological monthly means matched the Pacific Climate Impact Consortium PRISM climatology http://www.pacificclimate.org/data/high-resolution-prism-climatology. To avoid discontinuities at the boundaries between months, monthly climatologies were smoothed to daily climatologies following Epstein (1991) before bias correction.

Further information:
Epstein, E.S., 1991. Journal of Climate, 4:365-368. McKenney et al. (2011). Bull. Amer. Meteor. Soc., 92, 1611–1622. Wang et al. (2006). Int. J. Climatology, 26, 383-397. Werner and Cannon. (2016) Hydrology and Earth System Sciences, 20(4), 1483-1508.

Last Updated:
2017
Primary Developer:
ECCC
Timeframe:
1950 to 2100

Spatial Resolution:
500m

Temporal Resolution:
daily

Spatial Extent:
British Columbia
Climate Parameters:
  • maximum temperature
  • minimum temperature
  • total precipitation

Approximate Dataset Volume/Primary Format:
2.67 TB/netCDF*
(*data available in subsets of full volume) GB=gigabyte TB=terabyte

Usage:

Okanagan Flood Risk Modeling Project (in progress)

Website:



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