Tundra Nunavik: Set of 27 bioclimate variables projected for the 21st century (2011-2040, 2041-2070 and 2071-2100) under 10 climate change scenarios for Labrador and northern Quebec
Abstract
While most ecological studies focus on the impact of climate change on some populations or species, broader, ecosystem-based information is needed to better predict the future state of the Arctic. We therefore conducted a large-scale study aimed at characterizing the vulnerability of tundra ecosystems to climate change through modelling. As part of this study, we obtained variables describing the potential climate of the province of Québec north of the 50th parallel during the 21st century at a fine resolution (10km x 10km grid cells). Raw climate data (monthly minimum and maximum temperatures and total precipitation from January 2011 to December 2100) come from 10 climate simulations obtained from the CORDEX program (Giorgi et al. 2009; data available at http://cordex.org/data-access) and Ouranos (Separovic et al. 2013, Martynov et al. 2013; data available at https://www.ouranos.ca/en/program/climate-simulation-and-analysis). These simulations come from regional climate models driven by global climate model under one RCP (RCP4.5 or RCP8.5). From these raw layers (for one simulation) we derived and interpolated (Natural neighbor interpolation, see the Supplementary documentation section for further details) 27 annual climate variables, including mean annual temperature, total annual precipitation, temperature/precipitation of the coldest/warmest/driest/wettest month, growing/freezing degree-days, growing/freezing dates, and water balance (see exhaustive list in the Supplementary documentation section). Finally we averaged annual values to build climate normals for three future periods (2011-2040, 2041-2070 and 2071-2100). The climate layers are available at a 10km x 10km spatial resolution in NetCDF format (see the Supplementary documentation section to use NetCDF files with R). A total of 30 NetCDF, each containing 27 variables, is available (one file per simulation and per future period).
Data citation
Berteaux, D., Casajus, N., Ropars, P. 2018. Tundra Nunavik: Set of 27 bioclimate variables projected for the 21st century (2011-2040, 2041-2070 and 2071-2100) under 10 climate change scenarios for Labrador and northern Quebec, v. 1.0. Nordicana D33, doi: 10.5885/45535CE-1955B00FFC5E4B34.
Location map
Key references
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Martynov, A., Laprise, R., Sushama, L., et al., 2013. Reanalysis-driven climate simulation over CORDEX North America domain using the Canadian Regional Climate Model version 5: Model performance evaluation. Climate Dynamics, 41: 2973–3005.
DOI: 10.1007/s00382-013-1778-9 -
Separovic, L., Alexandru, A., Laprise, R., et al., 2013. Present climate and climate change over North America as simulated by the fifth-generation Canadian Regional Climate Model. Climate Dynamics, 41: 3167–3201.
DOI: 10.1007/s00382-013-1737-5 - Giorgi, F., Jones, C., Asrar, G.R., 2009. Addressing climate information needs at the region level: The CORDEX framework. WMO Bulletin, 58: 175–183.
Polar Data Catalogue links (Metadata)
- CCIN Tundra Nunavik: Set of 27 gridded climate variables projected during the 21st century under 10 climate change scenarios
Version history
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Version 1.0 (2011–2100)Updated October 31, 2018
You can request an older version by contacting nordicana@cen.ulaval.ca
Measurement sites
| Site | Latitude | Longitude | Altitude (m) | |
|---|---|---|---|---|
| Nord du Québec et Labrador | 56.192 | -68.689 | 356 | More info |
Supplementary material
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Data available for download are in ZIP format. Please properly cite the data when using it.