First Results on Monitoring Glacier Dynamics with the Aid of Terrestrial
Publikation aus Digital
Avian M., Bauer A.
Universität Graz -Institut für Geographie , 2006
Terrestrial laser scanning is a quite new technique for glacier monitoring.
Long-range laser scanners are able to acquire high-resolution 3D
data of surface structures. They can achieve measuring distances
up to a few kilometres of range with accuracy in the range of a few
centimetres. We report on an integrated system that is capable of
3D motion and deformations of glacier (especially glacier fronts)
within a single day‘s measurement campaign, including logistics and
evaluation. The Pasterze glacier in the Hohe Tauern National Park
(Central Alps, Austria) has been monitored during the last years
beginning with 2001. Results give a clear picture of comprehensive
modifi cations of
the entire area. At least three zones of a collapsing of the ice body
are detectable as well as a different behaviour of the bare ice and
debris covered glacier tongue. Surface elevation changes in paraglacial
areas such as adjacent slopes and newly developed kame terraces are
available area wide for further analyses.