season never started before late April, while in the years after 1995 it
would start early-to-mid April. In the case of Hálslón (Figure 7, bottom left), the regression
line is
flat, indicating no trend for this period, although for the interval 1996 – 2017, except for
2011, the melting started in late May at the latest, whereas previously it could occur as late as
early June. The most surprising
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