Professor Regine Hock, in red, a glaciologist with the Geophysical Institute, and
Tristan Weiss, a research technician with the Institute of Northern Engineering, hike
near the toe of the Jarvis Glacier in the eastern Alaska Range on July 29. The 性欲社
researchers were measuring the ice depth at various places along the glacier's length
as a part of a long-term study of the hydrology of the Jarvis River's ecosystem.