Forest Change Data Catalogue
Drought
Soil Moisture Index (SMI) (Hogg, E.H., Price, D.T., McKenney, D.W.)
Soil Moisture Index (SMI) is an indicator of drought calculated using daily or monthly weather records of precipitation and temperature, along with elevation and soil water-holding capacity. Lower values indicate drier conditions. The SMI provides a direct measure of soil moisture changes within the rooting zone of trees.
Data provided by: Ted Hogg, David Price
Reference: Hogg, E.H., Barr, A.G. and Black, T.A., 2013. A simple soil moisture index for representing multi-year drought impacts on aspen productivity in the western Canadian interior. Agricultural and forest meteorology, 178, pp.173-182.
| Years | Scenario | Description | Data Type | Link | |
|---|---|---|---|---|---|
| 1981-2010 | RCP Reference Period | The SMI calculated for the period from 1981-2010. This base line can be compared to the predicted SMI for various future climate scenarios. | raster | Download (0.4 MB) | |
| 2011-2100 | RCP 2.6 | The SMI projected for the periods 2011-2040, 2041-2070 and 2071-2100 under the RCP 2.6 scenario | raster | Download (1 MB) | |
| 2011-2100 | RCP 4.5 | The SMI projected for the periods 2011-2040, 2041-2070 and 2071-2100 under the RCP 4.5 scenario | raster | Download (1.1 MB) | |
| 2011-2100 | RCP 8.5 | The SMI projected for the periods 2011-2040, 2041-2070 and 2071-2100 under the RCP 8.5 scenario | raster | Download (1.1 MB) |