PHD scientist Ian Bartholomew using dye tracing techniques as part of a study to measure the speed of the Russell Glacier near Kangerlussuaq, Greenland, Polar Regions

greenland science scientist climate change global warming glacier glaciation russell glacier glaciology sample sampling scientific research recording ice remote research scientist melting glacier speed river sediment load suspended load pink dye dye tracing fluvial fluviology day outdoors people one person one man only man men scientists dyeing glaciers polar regions samples kangerlussuaq horizontal