to highly
negative summer balances, but also lower bw than
the average for 1949–2006. Calculated change in
specific mass balance for a ±1°C change in air tem-
perature was ±0.55 m w.e., whereas a ±10 % in-
crease in precipitation represented a change of ±
0.20 m w.e. Model results further indicated that for
a 2°C warming, the ablation season will be extend-
ed by c. 30 days and that the period
/media/ces/GA_2009_91A_4_Andreassen.pdf
Av. Ed.
Belin, 31400 Toulouse, France
Received: 21 March 2011 – Published in The Cryosphere Discuss.: 6 April 2011
Revised: 5 October 2011 – Accepted: 20 October 2011 – Published: 2 November 2011
Abstract. The Little Ice Age maximum extent of glaciers in
Iceland was reached about 1890 AD and most glaciers in the
country have retreated during the 20th century. A model for
the surface mass balance
/media/ces/Adalgeirsdottir-etal-tc-5-961-2011.pdf
1 orange, Society 2 green, Society 3 purple).
The combinations of climate conditions and socio economic conditions are frames which are used for back
casting, i.e. the goal of good water quality is achieved by measures which are consistent with the frame.
This study is limited to three frames, consisting of the combinations listed in Table 2. The scenario
consists of a set of measures
/media/loftslag/Group2-report.pdf