Table 1. Characteristics of the three alpine catchments.
| Catchment | Val Roseg | Loetschental | Macun |
|---|---|---|---|
| Coordinates | 9°53′53′′E, 46°29′24′′N | 07°49′03′′E, 46°25′08′′N | 10°07′31′′E, 46°43′51′′N |
| Altitude (m a.s.l.) | 1766–4049 | 1375–3200 | 2616–3046 |
| Catchment area (km2), (% glaciated) | 66.5 (30.1) | 77.8 (36.5) | 3.6 (18.8)a |
| Annual precipitation (m) | 1.6 | 1.1 | 0.9 |
| Mean discharge (m3 s−1) | 28.5 | 37.2 | ND |
| Mean water temperature of main channel (°C) (range) | 3.6 (1–12) | 4 (0.1–10.9) | 2.9 (0.1–19.2) |
| Geology, dominating rock types | Crystalline bedrock, diorite, granite | Crystalline bedrock, amphibolite, gneiss | Crystalline bedrock, orthogneiss |
Abbreviation: ND, no data.
a
Rock glaciers.