ateam - Potsdam Institute for Climate Impact Research
ateam - Potsdam Institute for Climate Impact Research
ateam - Potsdam Institute for Climate Impact Research
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ATEAM final report Section 5 and 6 (2001-2004) 116<br />
summer runoff [mm]<br />
600<br />
500<br />
400<br />
300<br />
800<br />
700<br />
600<br />
500<br />
200<br />
400<br />
1000<br />
Alptal Hirschbichl Dischma<br />
100<br />
300<br />
900<br />
1 2 3 4 1 2 3 4 1 2 3 4<br />
800<br />
700<br />
600<br />
500<br />
400<br />
300<br />
Saltina:<br />
1 2 3 4<br />
1000<br />
900<br />
800<br />
700<br />
600<br />
500<br />
Verzasca:<br />
1 2 3 4<br />
Time slices<br />
1400<br />
1300<br />
1200<br />
1100<br />
Time slices<br />
1: 1960 – 1990<br />
2: 1990 – 2020<br />
3: 2020 – 2050<br />
4: 2050 - 2080<br />
Figure 27. Summer river discharge (May to October) averaged over the three decades of the four time<br />
slices of ATEAM. The thick line gives the average summer river discharge of the seven different<br />
scenarios. The yellow area shows the maximum and minimum of the seven scenarios.<br />
200<br />
Alptal<br />
200<br />
Hirschbichl<br />
Discharge [mm]<br />
100<br />
0<br />
1 2 3 4 5 6 7 8 9 10 11 12<br />
month<br />
100<br />
0<br />
1 2 3 4 5 6 7 8 9 10 11 12<br />
month<br />
current<br />
future<br />
Figure 28. Stream flow regimes <strong>for</strong> the Alptal and the Hirschbichl catchment under current conditions<br />
and under future conditions (time slice 2050 – 2080, A2 HadCM3).<br />
elevation [m]<br />
2000<br />
1600<br />
1200<br />
1970 2000 2030 2060<br />
year<br />
2000<br />
1600<br />
1200<br />
1970 2000 2030 2060<br />
year<br />
A1FI<br />
A2<br />
B1<br />
B2<br />
A2 CGCM2<br />
A2 CSIRO2<br />
A2 PCM2<br />
Figure 29. Elevation of snow line (elevation above which the snow cover is reliable) as projected <strong>for</strong><br />
seven future climate scenarios. The left chart shows the Alptal catchment, the right chart shows the<br />
Verzacsa-Lavertezzo catchment.