the principalmethods have not changed much over the years, theamount of field work has varied. In the first 15 yearsthe monitoring programme at Storbreen was com-prehensive, often three or more snow density pits
were dug, snow depth was measured at about 600points and ablation was measured on 30 stakes
evenly distri uted on the glacier (Liestøl 1967).Based on experience of the snow pattern, the ob-
servations
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Tietäväinen, H., Ylhäisi, J. and Jylhä, K.
Summertime Precipitation in Finland under Recent and Projected Climate ......................................................... 26
Pryor, S.C., Barthelmie, R.J., Schoof, J.T., Clausen, N.E., Kjellström, E. and Drews, M.
Intense and extreme wind
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