40
Climatic Geomorphology
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9 ~
Accumulation (c) I"
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9
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o~
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./"
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l E ,.o
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o
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s
1 ....... ,,' Summer i
i
='',, ..........
,~Dlat~on [a)
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r
Winter season
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-
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~',.
-Q
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Balance year
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z
-~1
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Figure 2.4. Graphical explanation of the mass balances in glaciers (in Andrews, 1975).
!
I1970-71
1965-66
1960-61
1955-56
300cm 200
100
0
ablation (-)
1950-51
1945-46
! :
!
i
I
"~, I 1 !
0
100
200cm
accumulation (+)
Figure 2.5. Mass balance for the period 1945-1973 in Storglaci~iren (Sweden) in which the annual
accumulation, ablation and net balance are expressed (Ostrem et al., 1973).