3D data acquisition in the Ötztal Alps - Exploring 3D GIScience on the “Monster of Rock”
Sep 12th, 2016 by Martin Hämmerle
As part of the practical field training “3D Geodatenerfassung im Hochgebirge (Ötztal), 31 July - 06 August”, the rock glacier “Äußeres Hochebenenkar” (42 ha), located in the Ötztal Alps in an elevation of 2,630-2,800 m a.s.l., was explored by 16 students under the direction of Bernhard Höfle, Stefan Hecht and Martin Hämmerle.
With the help of several sensor systems (LiDAR, GNSS), close range photogrammetry and the geophysical method of electrical resistivity tomography (ERT) a huge amount of data was captured to analyse the geomorphology, the sub-surface (e.g. permafrost) and the behaviour or change to the last year’s summer school project of the fondly called “Monster of Rock”. In three groups (“LiDAR”, “Photogrammetry” and “ERT”) specific sub-topics ranging from change detection over volume calculations all the way to the comparison of methods were chosen and already pre-processed in the on-site “sky-lab” at our base station, the Universitätszentrum Obergurgl. It provided us with a great accommodation to be ready for the daily hikes to the field and provided an excellent working environment.
A small part of the tip (of the utmost spur…) of the examined rock glacier aka. Monsterbaby aka. Monster of Rock
Operating the Global Satellite Navigation Systems (GNSS)
Regular evening in the sky-lab: probably one of the highest data processing centres in the world
Additionally, presentations of researches of the University of Innsbruck extended our knowledge of the surrounding we were working in. Field trips e.g. to the Köfels Bergsturz or the museum of local history gave further insights into recent fields of study and the local environment which has been highly influenced by anthropogenic factors for centuries.
All in all we had a very interesting and enjoyable time in Obergurgl which we can only thank our Heidelberg and Innsbruck lecturers for.
Well, did this scan work?
Course participants
Bernhard meets Bernhard
——————————————
Text: Tobias Brunk, Moritz Schott
——————————————