期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN:2194-9042
电子版ISSN:2194-9050
出版年度:2004
卷号:XXXV Part B7
页码:893-898
出版社:Copernicus Publications
摘要:Rock glaciers are striking phenomena of high mountain permafrost. These periglacial landforms are composed of rock and ice and creep downslope at a typical rate of a few decimeters per year. This movement and other surface changes can be measured by various observation techniques. In this paper a digital-photogrammetric approach to rock glacier monitoring is described based on multi- temporal aerial photographs. A software package, ADVM (Automatic Displacement Vector Measurement), has been developed, which automatically derives 3D displacement vectors from the photographs. The basic concepts of this software will be given first, followed by a detailed description of a new constrained image matching technique, implemented in the current ADVM 2.0 version. Finally, the successful application of the software is shown in a case study: The spatio-temporal evolution and dynamic behavior of the Hinteres Langtalkar rock glacier (Hohe Tauern range of the Austrian Alps) was reconstructed using aerial photographs (1954- 1999). Results of the practical investigations are presented graphically and numerically