Condition variable | Subvariable | Unit | Condition 2015 | Condition 2018 | Change 2018 to 2015 |
---|---|---|---|---|---|
The values of the condition variables present the yearly arithmetic average for the respective ecosystem, if not definied differently by the measurement unit. 1: Due to a methodological change in the underlying data source (increased spatial resolution) the changes between the time steps cannot be interpreted and are not presented here. . = Numerical value unknown or not to be disclosed. | |||||
Soil moisture (top soil) | Drought | days per year | 88.54 | 192.11 | 103.57 |
Abnormal aridity | days per year | 52.24 | 26.90 | -25.34 | |
Glacier extent | Volume | thousand cubic metre | 7,746 | 3,940 | -3,806 |
Area | hectare | 54 | 45 | -9 | |
Normalized Diffference Vegetation Index | April-September | index (-1 to 1) | 0.62 | 0.65 | 0.03 |
Vegetation period | Length | days | 183 | 152 | -31 |
Tree cover density | % | 14.71 | 12.53 | -2.18 | |
Characteristic alpine species | Edelweiss | % of spatial distribution | . | 0.03 | . |
Gentian | % of spatial distribution | . | 4.44 | . | |
Alpine rose | % of spatial distribution | . | 0.04 | . | |
Alpine ibex | % of spatial distribution | . | 0.23 | . | |
Chamois | % of spatial distribution | . | 22.83 | . | |
Marmot | % of spatial distribution | . | 0.01 | . | |
Coastal imperviousness1 | % (3 kilometre coastal buffer) | 5.47 | 6.24 | . | |
Protected area | % | 67.54 | 67.95 | 0.41 | |
Grassland use intensity | mowing events per year | . | 1.22 | . | |
Air temperature | March, April, May | Celsius | 7.57 | 9.05 | 1.48 |
June, July, August | Celsius | 17.13 | 18.05 | 0.92 | |
September, October, November | Celsius | 8.98 | 9.68 | 0.70 | |
December, January, February | Celsius | 1.27 | 0.71 | -0.56 | |
Precipitation | March, April, May | millimetre (sum) | 235.10 | 162.33 | -72.77 |
June, July, August | millimetre (sum) | 266.94 | 205.01 | -61.93 | |
September, October, November | millimetre (sum) | 246.01 | 127.26 | -118.75 | |
December, January, February | millimetre (sum) | 228.84 | 251.40 | 22.56 | |
Snow cover | days | 39.79 | 42.52 | 2.73 |
As at 21 June 2023