We spent the morning setting up the base GPS station, and installing time lapse cameras before starting up the valley to the glacier. The lower part of the glacier is rapidly melting with parts of it melting more rapidly than others depending on the amount of rock and dirt insulating the ice. The area is thus an uneven and chaotic surface. Our goal was to map the lower edge of the glacier and several transects across the glacier by using a special highly accurate GPS instrument.
Rob explaining how to set up the GPS Base Station
Approaching the source of the outlet stream.
The outlet stream suddenly appears from under the glacier as a bubbling spring.
View up glacier from eastern medial moraine
Where the moraine has collapsed due to stream action you can see how thin the layer of rock is on top of the ice.
Rob and Timmy logging a data point
Walking the crest of the medial moraine.
Small tributary glacier
On the lateral moraine
Descending the lateral moraine at the beginning of a transect.
Crossing a section of bare ice on the transect.
Locating a marker boulder on the bare ice.
Heading back along the western medial moraine
Erosion of moraine by stream
Mapping the outlet stream