Greenland - Summer 2007.

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Presentation transcript:

Greenland - Summer 2007

Swiss Camp in W Greenland (1100 m elev) experienced a warm summer; extensive melt was noted (K. Steffen, pers. comm.)

M. Tedesco - passive microwave shows longer melt duration at high elevations in the south Eos, Vol. 88, No. 39, 25 September 2007 -30 30 days

2007 daily melt area departure from mean Mote, T. L. (2007), Greenland surface melt trends 1973–2007: Evidence of a large increase in 2007, Geophys. Res.Lett., 34, L22507

Melt days anomaly 2007 Melt onset anomaly 2007 Mote, T. L. (2007), Greenland surface melt trends 1973–2007: Evidence of a large increase in 2007, Geophys. Res.Lett., 34, L22507

Mote, T. L. (2007), Greenland surface melt trends 1973–2007: Evidence of a large increase in 2007, Geophys. Res.Lett., 34, L22507

Glaciers: In 2007 Glacial Earthquakes returned to Helheim Glacier in SE Greenland after being absent in summer 2006 (M. Nettles, Fall 2007 AGU) Helheim had re-advanced and slowed in 2006 (Howat et al. Science, 2007) Jakobshavns Isbrae in W Greenland has not yet retreated from it’s winter re-advance this year (2008); this retreat had already started by now in 2006 and 2007. (Colder winter this year?)