Forest Change Data Catalogue
Drought
Climate Moisture Index (CMI) (Eddy, B.G.)
Climate Moisture Index (CMI) is an indicator of drought calculated as the difference between annual precipitation and potential evapotranspiration (the potential loss of water vapour from a landscape covered by vegetation). Positive CMI values indicate wet or moist conditions and show that precipitation is sufficient to sustain a closed-canopy forest. Negative CMI values indicate dry conditions that, at most, can support discontinuous parkland-type forests.
Data provided by: Ted Hogg, David Price, Dan McKenney
Reference: Wang, Y., Hogg, E.H., Price, D.T., Edwards, J. and Williamson, T., 2014. Past and projected future changes in moisture conditions in the Canadian boreal forest. The Forestry Chronicle, 90(5), pp.678-691.
| Years | Scenario | Description | Data Type | Link | |
|---|---|---|---|---|---|
| 2071-2100 | RCP 8.5 | Interactive web map of the projected climate moisture index for the period of 2071 to 2100 under RCP 8.5 | web service | View | |
| 2011-2040 | RCP 8.5 | Interactive web map of the projected climate moisture index for the period of 2011 to 2040 under RCP 8.5 | web service | View | |
| 2041-2070 | RCP 8.5 | Interactive web map of the projected climate moisture index for the period of 2041 to 2070 under RCP 8.5 | web service | View | |
| 1981-2010 | RCP Reference Period | Interactive web map of the projected climate moisture index for the reference period of 1981 to 2010 | web service | View | |
| 2071-2100 | RCP 2.6 | Interactive web map of the projected climate moisture index for the period of 2071 to 2100 under RCP 2.6 | web service | View |